20130325 WHPP DRAFT v10
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WELLHEAD PROTECTION
PLAN
City of Yelm, Washington
Submitted To: Stephanie Ray
City of Yelm
105 Yelm Ave. West
Yelm, WA 98597
Submitted By: Golder Associates Inc.
9 Monroe Parkway, Suite 270
Lake Oswego, OR 97035 USA
Distribution: City of Yelm, WA – Two hardcopies and one electronic
Golder Associates Inc., Lake Oswego, OR – One hardcopy
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EXECUTIVE SUMMARY
This report updates the 2010 Wellhead Protection Plan for the City of Yelm. The report documents the
delineation of the wellhead protection areas for the City of Yelm (City). The City currently obtains its
drinking water supply from two existing wells (Wells 1A and 2), and is planning to expand their source
capacity and seek approval to include a new additional groundwater supply source (SW Well 1A). The
two existing wells are completed in the glacial advance outwash aquifer (Qva), while the new well is
completed in a deeper unconsolidated aquifer (TQu). Both aquifers are confined by overlying low-
permeability sediments.
A Wellhead Protection Plan for the existing wells was last updated in 2010 as part of the City’s Water
System Plan Update. Since that time, the City has planned upgrades to their water system, which have
necessitated the following updates to their existing WHPP:
Expanded knowledge of the hydrogeologic characteristics of the area now that a deeper
supply source aquifer (TQu) has been identified;
Revised wellhead protection area (WHPA) delineations for existing Wells 1A and 2 using
a numerical groundwater flow model and planned pumping capacity expansions;
New WHPA delineation for the planned SW Well 1A supply source using the numerical
groundwater flow model;
A new contaminant source inventory generated within the updated and newly defined
WHPAs; and
Susceptibility assessment for the planned SW Well 1A source supply.
Contaminant sources having the potential to adversely impact groundwater quality were identified within
the WHPAs through an environmental database search of potential contaminant source sites and an
evaluation of typical land use practices. A total of 120 known or suspected soil and groundwater
contamination sites were identified within a 2.5 mile search radius encompassing the WHPAs. Of the 120
potential contaminant source sites identified, 23 sites coincide with the six-month and one-year capture
zones for Wells 1A and 2. No known or potential contaminant sites were identified in the five- or ten-year
capture zones for Wells 1A and 2, and none were identified within any of the WHPA capture zones
delineated for SW Well 1A.
To prevent and protect against contamination of the City’s drinking water supply sources, the City
currently employs the following management strategies:
Controlling future development in WHPA capture zones through land use regulations;
Enforcement and regulation of activities within the WHPAs through the City’s Municipal
Codes;
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Notification to owners and operators of potential sources of contamination, and the
agencies or jurisdictions that regulate them, that they reside within the City’s WHPA
boundaries;
Spill prevention measures to prevent the accidental release of pollutants, and spill
treatment and response actions to be taken to minimize potential damages in case a spill
does occur; and
Contingency measures to implement in the event that a natural disaster or contamination
event results in the temporary or permanent loss of the City’s water supply source.
The following pollution prevention and risk reduction measures are recommended to compliment the
City’s current commitment to protect its groundwater sources and maintain a safe and reliable community
water supply:
Adopt new WHPAs – To continue to protect the valuable groundwater resource, the City
should adopt the newly-defined WHPAs to enforce land use restrictions on certain high-
risk activities;
Public Outreach/Education – Increase public awareness and ownership of the wellhead
protection program through outreach efforts focused on groundwater protection;
Water Quality Monitoring – Install groundwater monitoring wells designed to improve the
coverage for groundwater quality from known or suspected contaminant sites, and
evaluate groundwater quality test results;
Spill Response Plan Update – The Spill Response Plan should be reevaluated and
updated as needed to address any site specific conditions pertaining to SW Well 1A after
the wellhouse facility is constructed.
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Table of Contents
EXECUTIVE SUMMARY ........................................................................................................................ ES-1
1.0 INTRODUCTION .............................................................................................................................. 1
1.1 Regulatory Background and Purpose .......................................................................................... 1
1.2 City Production Wells ................................................................................................................... 2
1.3 Plan Overview .............................................................................................................................. 2
2.0 HYDROGEOLOGIC CONDITIONS ................................................................................................. 4
2.1 General Physical Setting .............................................................................................................. 4
2.2 Climate and Precipitation ............................................................................................................. 4
2.3 Surface Hydrology ........................................................................................................................ 4
2.4 Hydrogeologic Setting .................................................................................................................. 4
2.4.1 Recessional Outwash (Qvr) ..................................................................................................... 5
2.4.2 Till (Qvt) .................................................................................................................................... 5
2.4.3 Advance Outwash (Qva) .......................................................................................................... 6
2.4.4 Kitsap Formation (Qf) ............................................................................................................... 6
2.4.5 Salmon Springs(?) Drift ............................................................................................................ 6
2.4.6 Unconsolidated and Undifferentiated Deposits (TQu) ............................................................. 6
2.4.7 Bedrock (Tb) ............................................................................................................................ 7
2.5 Groundwater Movement ............................................................................................................... 7
3.0 WELLHEAD PROTECTION AREA DELINEATION ......................................................................... 8
3.1 Previous WHPAs .......................................................................................................................... 8
3.2 Modeling Approach ...................................................................................................................... 8
3.3 WHPA Modeling Results .............................................................................................................. 8
3.3.1 SW Well 1A – TQu Aquifer ...................................................................................................... 9
3.3.2 Wells 1A and 2 – Qva Aquifer .................................................................................................. 9
4.0 SUSCEPTIBILITY AND CONTAMINANT SOURCE INVENTORY ............................................... 10
4.1 Susceptibility Assessment .......................................................................................................... 10
4.2 Contaminant Source Inventory................................................................................................... 11
4.2.1 Database Search ................................................................................................................... 11
4.2.2 Field Survey ........................................................................................................................... 11
4.3 Land Use .................................................................................................................................... 11
4.3.1 Residential and Rural Residential .......................................................................................... 12
4.3.2 Commercial/Industrial ............................................................................................................ 12
4.3.3 Institutional/Open Space ........................................................................................................ 13
4.4 Potential Groundwater Quality Concerns ................................................................................... 13
4.4.1 Nitrates in Groundwater ......................................................................................................... 13
4.4.2 Pesticides ............................................................................................................................... 15
4.4.3 Petroleum Hydrocarbons ....................................................................................................... 16
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4.4.4 Metals ..................................................................................................................................... 16
4.4.5 Corrosive Materials ................................................................................................................ 17
4.5 Risk Priority Rankings for Potential Contaminant Source Sites ................................................. 17
4.5.1 Decision Level I – Potential Contaminant Source Site Location Relative to Wellhead
Protection Area ...................................................................................................................... 17
4.5.2 Decision Level II – Type of Contamination ............................................................................ 18
4.5.3 Decision Level III – Straight Line Distance from Wells .......................................................... 18
4.6 Contaminant Source Inventory Results ..................................................................................... 18
4.6.1 Wells 1A and 2 ....................................................................................................................... 18
4.6.2 SW Well 1A ............................................................................................................................ 19
5.0 MANAGEMENT STRATEGY ......................................................................................................... 21
5.1 Land Use and Regulatory Control .............................................................................................. 21
5.1.1 City of Yelm ............................................................................................................................ 21
5.1.2 Thurston County..................................................................................................................... 22
5.2 Public Education ........................................................................................................................ 22
5.3 Notifications ................................................................................................................................ 23
5.3.1 Notification to Owners of Potential Sources of Contamination .............................................. 23
5.3.2 Notification to Regulatory Agencies and Local Governments ............................................... 23
5.3.3 Notification to Local Emergency Responders ........................................................................ 23
5.4 Spill Response Plan ................................................................................................................... 24
5.5 Contingency Plan ....................................................................................................................... 24
5.6 General Considerations for New Monitoring Wells .................................................................... 24
5.6.1 Monitoring and Data Management......................................................................................... 25
6.0 SUMMARY ..................................................................................................................................... 26
6.1 City Production Wells ................................................................................................................. 26
6.2 Wellhead Protection Area Delineations ..................................................................................... 26
6.3 Known Potential Contaminant Sources ..................................................................................... 26
6.4 Management Strategy ................................................................................................................ 27
7.0 RECOMMENDATIONS .................................................................................................................. 28
8.0 SIGNATURE PAGE ....................................................................................................................... 29
9.0 REFERENCES ............................................................................................................................... 30
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List of Tables
Table 1 City of Yelm Wells
Table 2 Lithologic and Hydrologic Characteristics of Geohydrologic Units (Drost et al., 1999)
Table 3 Land Use Types
Table 4 Land Use Risk Concerns
Table 5 Level I Sub-Prioritization: Potential Contaminant Source Site Location Relative to
Wellhead Protection Area
Table 6 Level II Sub-Prioritization: Type of Contamination
Table 7 Contaminant Source Inventory and Risk Priority Ranking
List of Figures
Figure 1 Well Location
Figure 2 Wellhead Protection Areas
Figure 3 Land Use
Figure 4 Decision Level I Hazard Areas and Facilities
Figure 5 Decision Level I Hazards Sub-Priority Levels 1 and 2
Figure 6 Recommended Monitoring Well Locations
List of Appendices
Appendix A City Production Wells – Well Reports and Borehole Logs
Appendix B Geologic Cross-Sections
Appendix C Yelm 2012 WHPA Model Technical Memorandum
Appendix D SW Well 1A Groundwater Contamination Susceptibility Assessment Form
Appendix E Environmental Data Resources (EDR) Report – Executive Summary
Appendix F SW Well 1A Sanitary Control Area and Declaration of Covenant
Appendix G Example Letters of Notification and Notification List
List of Attachments
Compact Disc: Environmental Data Resources Full Report (enclosed at the back of the document)
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1.0 INTRODUCTION
The potable water supply for the City of Yelm (City) is from groundwater sources. The City currently relies
on two approved groundwater supply wells (Wells 1A and 2), and is currently expanding their source
capacity and seeking approval to include an additional supply well (SW Well 1A). The City is committed to
protecting its groundwater sources through a proactive wellhead protection program to help prevent
groundwater contamination and maintain a safe and reliable community water supply.
Robinson and Noble (2001) prepared a Wellhead Protection Plan (WHPP) for existing Wells 1A and 2 in
2001. The City last updated its WHPP in 2010 as part of the City’s Water System Plan update (Brown and
Caldwell, 2010). Since 2010, a few upgrades by the City have necessitated a subsequent WHPP update
(this report), including: (1) an increase in pumping capacity at Wells 1A and 2, (2) a planned new supply
source (SW Well 1A), and (3) the ability to improve the previously mapped wellhead protection areas
(WHPAs) using a numerical groundwater flow model (a more complex delineation method than used for
past updates). This report updates the City’s existing WHPP in the following ways:
An updated discussion of the hydrogeologic characteristics of the area now that a deeper
supply source aquifer (TQu) has been identified;
Updated WHPA delineations for Wells 1A and 2 using a numerical groundwater flow
model and the planned pumping capacities;
New WHPA delineations for the planned SW Well 1A supply source using the numerical
groundwater flow model and planned pumping capacity;
Susceptibility assessment for the planned SW Well 1A source supply; and
A contaminant source inventory within the updated and newly defined WHPAs.
1.1 Regulatory Background and Purpose
The 1986 amendments to the Safe Drinking Water Act (SDWA) authorized two provisions for groundwater
protection, one of which was the Wellhead Protection (WHP) program. The WHP program was
developed to protect and prevent potential groundwater contamination of public drinking water supplies.
The SDWA allows each state to design its own WHP program in order to maximize effectiveness at the
local level. The State of Washington requires that all Group A water systems develop WHP plans as
stated in Washington Administrative Code (WAC 246-290). The Washington State Department of Health
(WDOH) has established requirements, guidelines, and materials to assist water systems in developing
WHP plans. For a groundwater supplied system, the following elements are required:
Discussion of the hydrogeologic characteristics of the area;
Susceptibility assessment of the source supplies;
Delineation of the wellhead protection areas (WHPAs);
Contaminant source inventory within the defined WHPAs;
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Contingency plan;
Notification to owners/operators of potential contamination sources;
Notification to regulatory agencies and local governments of WHPA boundaries and
contaminant source inventory findings; and
Notification to local emergency responders of WHPA boundaries, results of the
susceptibility assessment and contaminant source inventory, and contingency plan.
1.2 City Production Wells
Wells 1A and 2 are the City’s sole drinking water supply sources. The wells are located on Second
Avenue SE between Washington and McKenzie Streets in SW¼, SW¼, Section 19, T17N, R2E W.M. in
Thurston County (Figure 1). Well 1A was drilled in 2005 as a replacement for Well 1, which was installed
in the 1950s and currently functions as a monitoring well. Well 2 was constructed in 1958 and was
equipped with new pumping equipment in 2002. Well 1A is located approximately 65 feet southwest of
Well 2. Table 1 summarizes the construction details for Wells 1A and 2. Water well reports and borehole
logs for the existing water supply wells are provided in Appendix A. Both Wells 1A and 2 were recently
inspected, cleaned, and upgraded with new pumping equipment to increase their capacities.
At the time the 2001 WHPP (Robinson and Noble, 2001) was prepared, Wells 1A and 2 were in operation
and two additional wells were identified as potential future sources (Wells 3 and 3A). Since 2001, Wells 3
and 3A have both been completely decommissioned.
In 2010, the City commenced a deep groundwater resource exploration project in the Tahoma Terra area
west of downtown. The project was designed to explore the potential of developing a new groundwater
source from a portion of the aquifer system that would lessen the effects of pumping on local surface
water features and existing groundwater users. Based on the findings from this exploration project, the
City has constructed a new groundwater supply well (SW Well 1A). The well is located in Thurston County
in SE¼, SE¼, Section 23, T17N, R1E W.M. (Figure 1). Construction details of SW Well 1A are provided
in Table 1. A water well report and borehole log is provided in Appendix A. The City has applied for a
water right for this well and further development will occur once water rights are obtained.
1.3 Plan Overview
This WHPP update includes the following elements:
Section 2.0: Hydrogeologic Conditions – Presents the current understanding and
characterization of hydrogeologic conditions in the Yelm area;
Section 3.0: Wellhead Protection Area Delineation – Identifies the six-month and one-,
five-, and ten-year WHPAs for City’s existing (Wells 1A and 2) and planned future well
(SW Well 1A);
Section 4.0: Susceptibility and Contaminant Source Inventory – Presents an inventory of
known and potential contaminant sources, identifies and discusses land use activities in
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the Yelm area and within the WHPAs, and assesses the potential risk these land use
activities and associated contaminants may have to the supply sources;
Section 5.0: Management Strategy – Presents an overview of the City’s efforts to
manage groundwater protection and coordinate activities among state agencies, local
governments, emergency responders, and owner/operators of potential contaminant
sources, and others. This section also provides general considerations for new
monitoring wells.
Section 6.0: Summary – Summarizes key aspects of the wellhead protection plan; and
Section 7.0: Recommendations – Provides a list of recommendations for further
consideration based on findings from this WHPP update.
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2.0 HYDROGEOLOGIC CONDITIONS
This section provides background information on the physical setting and hydrogeology of the Yelm area
based on previous investigations and findings from the 2010 deep groundwater exploration project. The
primary sources of data for the characterization of the local hydrogeologic system include:
Conceptual Model and Numerical Simulation of the Groundwater Flow System in the
Unconsolidated Sediments of Thurston County (Drost et. al, 1999);
City of Yelm Wellhead Protection Plan (Robinson and Noble, 2001);
Thompson Creek Conceptual Hydrogeologic Model (Golder, 2009);
City of Yelm 2010 Water System Plan update (Brown and Caldwell, 2010); and
The City of Yelm Southwest Well 1A Development Report (Golder, 2010).
2.1 General Physical Setting
The City of Yelm is located along the western margin of Yelm Prairie approximately 15 miles southeast of
the City of Olympia in northeastern Thurston County, Washington.
2.2 Climate and Precipitation
The Yelm area has a climate characterized by dry, warm summers and wet, cool winters (WRCC, 2009).
Average annual rainfall totals 50.8 inches, nearly 85 percent of which falls during the months of October
through April. Total rainfall is generally greatest during the month of November (8.1 inches) and lowest
during July (0.8 inches). Air temperatures average 38.9 °F during the three coldest months of the year
(December through February) and 61.5 °F during the three warmest months (July through September).
2.3 Surface Hydrology
Yelm is located within the Nisqually River drainage and is bordered to the east by Yelm Creek and to the
west by Thompson Creek (Figure 1). Both creeks drain northward and discharge to the Nisqually River
north of Yelm. Thompson Creek flows along the western margin of Yelm Prairie along the base of the
Thurston Highlands west of Yelm. Thompson Creek originates from a wetland complex southwest of Yelm
near the base of the highlands. Yelm Creek originates approximately 4.6 miles southwest of Yelm and
receives flow from Goodwin Lake and other kettle depression lakes and minor tributary streams before
discharging to the Nisqually River.
2.4 Hydrogeologic Setting
The Yelm area is situated in the south-central portion of the Puget Sound Lowland. The Puget Sound
Lowland is a north-south-oriented basin that has experienced repeated deposition, erosion and reworking
of geologic sediments during glacial and interglacial periods. The repeated glacial advances and retreats
covered the area with layered, unconsolidated glacial and non-glacial deposits. The most recent glacial
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advance into the Yelm area took place approximately 13,500 to 15,000 years ago and is known as the
Vashon Stade of the Fraser Glaciation.
The groundwater system in the study area has been described as being composed of seven major
hydrogeologic units (Drost, et al., 1999). The hydrogeologic nomenclature of Drost, et al. (1999) is used
for this study to remain consistent with previous work. A summary of the lithologic and hydrologic
characteristics of each unit is presented in Table 2 (adapted from Drost et al., 1999). The hydrogeologic
units known to exist within this area of Thurston County from the surface downward include:
Recessional Outwash (Qvr);
Till (Qvt);
Advance Outwash (Qva);
Kitsap Formation (Qf);
Salmon Springs(?) Drift (Qc);
Unconsolidated and undifferentiated deposits (TQu); and
Bedrock (Tb).
The primary water-bearing units include the Qva, Qc, and TQu. The till (Qvt) and Kitsap Formation (Qf)
units are typically composed of low-permeability, fine-grained sediments and act as confining layers for
deeper groundwater flow systems. The hydrostratigraphic units (as interpreted from area well logs) are
illustrated on geologic cross-sections adapted from Robinson and Noble (2001) and Golder (2010), and
are provided in Appendix B. A brief description of each unit is provided in the subsections below.
2.4.1 Recessional Outwash (Qvr)
The recessional outwash deposits (Qvr) blanket most of Yelm east of the Thurston Highlands. The
sediments were deposited by meltwater streams discharging from the glacier as it retreated from the
Yelm area. With the exception of alluvial sands and gravels found along many of the local streams, the
recessional outwash is the youngest geologic deposit in the area. The Qvr sediments are composed
primarily of sand and gravel. Area well logs indicate the thickness to range between 10 and 50 feet. The
Qvr unit is generally too thin to support groundwater supply wells; most wells in the area are completed in
the deeper, more transmissive Qva aquifer.
2.4.2 Till (Qvt)
An unsorted mixture of rock debris known as glacial till (Qvt) underlies the Qvr unit and confines
groundwater in the deeper Qva. The till was transported by the glacier as it advanced into the area and
was deposited over the Qva. The Qvt deposits are generally composed of a mixture of sands, gravels,
cobbles, and boulders within a compacted matrix of silt and clay. Drillers commonly refer to these
deposits as “hardpan”, “cemented”, or “boulder clay”. The Qvt unit is found at depth throughout the Yelm
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area and is exposed at the surface west of Yelm forming the eastern portion of the Thurston Highlands.
The thickness generally ranges between 35 and 80 feet, and is known to exceed 100 feet in areas west
and southwest of Yelm (Drost et al., 1999). The Qvt unit at SW Well 1A is approximately 145 ft thick (25
to 170 ft bgs) and consisted predominately of cemented, fine-to-coarse sand and gravel with silt and
cobbles. The Qvt unit is considered a confining bed (i.e., aquitard) and its cemented conditions limit its
permeability.
2.4.3 Advance Outwash (Qva)
The advance outwash deposits (Qva) lie beneath and are confined by the overlying Qvt till. The Qva
sediments were carried and deposited by meltwater streams discharging from the glacier as it advanced
into the Yelm area. The Qva is a relatively permeable aquifer unit consisting generally of gravel in a
matrix of sand with some sand lenses. The Qva is widespread throughout the subsurface ranging in
thickness between 15 and 85 ft, and is the primary source for domestic and municipal water supplies in
the Yelm area. Wells 1A and 2 are completed in and obtain groundwater from this unit.
2.4.4 Kitsap Formation (Qf)
The Kitsap Formation is a low-permeability, fine-grained confining layer that separates the overlying Qva
unit from the deeper Qc and TQu units. The Qf unit is composed predominately of clay and silt, with some
layers of sand and gravel, and may include some till or till-like deposits and minor amounts of peat and
wood. The Qf unit is extensive throughout the Yelm area and its thickness generally ranges between
approximately 25 and 80 feet. The Qf unit at SW Well 1A is approximately 21 ft thick (219 and 240 ft bgs)
and consisted of both silt and clay with organics and fine-to-coarse sand with silt, gravel and cobbles.
2.4.5 Salmon Springs(?) Drift
Below the Qf is the Salmon Springs(?) Drift unit (Qc). The Qc unit consists mainly of coarse-grained sand
and gravel and is characterized by its oxidized red or brown staining (i.e., iron-oxides). This unit is
referred to as the Salmon Springs(?) Drift by Noble and Wallace (1966) because its stratigraphic
relationships mapped in Thurston County are similar to the Salmon Springs Drift type-section mapped in
Pierce County and north of Tacoma, WA. The Qc unit is extensive throughout the Yelm area and its
thickness typically ranges between 15 and 50 feet. The Qc unit is roughly 60 ft thick at SW Well 1A (240
and 300 ft bgs) and consists predominately of sand with gravel (stained reddish brown) and silt.
Groundwater in the Qc is confined by the overlying Qf unit and is a supply source for some wells.
2.4.6 Unconsolidated and Undifferentiated Deposits (TQu)
Unconsolidated and undifferentiated deposits of the TQu underlie the Qc unit. The TQu consists of glacial
and non-glacial sediments of clay, silt, sand, and gravel, and is known to consist of layers of fine-grained
deposits and coarse-grained water-bearing units (Drost et al., 1999). The TQu is widespread throughout
the region, but its thickness is not well known.
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SW Well 1A is completed within the coarse-grained, water-bearing layers of the TQu. The coarse-grained
layers consist predominately of fine-to-coarse sand with some gravel, while the fine-grained layers
generally consist of silt and clay with some fine sand. The TQu unit at SW Well 1A is at least 500 ft thick
(from 300 ft bgs to the total explored drilling depth of 800 ft bgs). The total thickness however, remains
unknown because bedrock was not encountered within the exploratory drilling depth.
2.4.7 Bedrock (Tb)
The deepest geohydrologic unit in the Yelm area is consolidated bedrock (Tb). The bedrock unit consists
of sedimentary claystone, siltstone and sandstone and igneous bodies of andesite and basalt. The Tb
unit is known to contain some water in fractures and joints, but is considered an unreliable source due to
low yields and poor water quality (Drost et al., 1998).
2.5 Groundwater Movement
Groundwater in the Yelm area is derived from two different flow systems: shallow and deep. The shallow
groundwater system consists primarily of the advance outwash (Qva) deposits, whereas the deeper,
regional groundwater system consists of the older glacial deposits identified as the Salmon Springs(?)
Drift (Qc) and unconsolidated and undifferentiated deposits of the TQu. Studies conducted by Robinson
and Noble (1995 and 2001) indicate that the groundwater elevation and flow direction of the deeper
system are different from those in the shallow system beneath Yelm. Groundwater within the shallow
system generally flows in a northerly direction across Yelm Prairie toward the Nisqually River, whereas
groundwater in the deeper system moves more northwesterly away from the Nisqually River toward
Olympia, WA.
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3.0 WELLHEAD PROTECTION AREA DELINEATION
This section discusses the modeling approach used to delineate time-of-travel based wellhead protection
areas (WHPAs) and identifies the six-month and one-, five-, and ten-year WHPA capture zones for the
City’s existing supply wells (Wells 1A and 2) and planned future well (SW Well 1A).
3.1 Previous WHPAs
WHPAs were originally delineated by Robinson and Noble (2001) for the City’s active source wells using
a combination of delineation methods: the near-well capture zones were delineated using an analytical
approach, while hydrogeologic analyses and mapping techniques were used at distant locations from the
wells. Planned capacity expansions and a new groundwater flow modeling tool capable of evaluating
groundwater protection and development projects in the Thurston County area have prompted revisions
to the previously mapped WHPA capture zones.
3.2 Modeling Approach
The WHPAs for the City’s current and planned supply wells were delineated using the most up-to-date
version of the McAllister Groundwater Model, which encompasses a broad area of Thurston County and
was utilized to support the City’s water right applications and mitigation program (City of Yelm, 2011).
Details of the model construction and calibration are provided by CDM (2002a and 2002b), Golder (2008a
and 2008b), and City of Yelm (2011). This most up-to-date version of the McAllister Groundwater Model is
hereafter referred to as the “existing model”.
The existing model was modified in order to delineate updated WHPAs for the City’s current and planned
supply sources. Adaptations and modifications to the existing model for this use (including model
refinements and updates), as well as a more detailed discussion of modeling approach and capture zone
analysis, are presented in a Technical Memorandum provided in Appendix C. The adaptation resulted in a
separate Yelm-specific tool that is hereafter referred to as the Yelm 2011 WHPA Model.
The WHPAs were delineated for the following City wells:
SW Well 1A (recently drilled; planned new source); and
Wells 1A and 2 (current, approved sources).
3.3 WHPA Modeling Results
Figure 2 displays the predicted six-month and one-, five-, and ten-year time-of-travel capture zones for
the City supply sources. Figures TM-2 and TM-3 of Appendix C show the model-predicted groundwater
elevations in feet above mean sea level (amsl) and flow directions in the Yelm area for the Qva and TQu
aquifers, respectively. The WHPA capture zones are summarized for each of the supply/aquifer sources
in the following two subsections.
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3.3.1 SW Well 1A – TQu Aquifer
The shape of the six-month and one-, five-, and ten-year time-of-travel WHPA capture zones (using an
annual average pumping rate of 584 gallons per minute based on the maximum annual water right
volume of 942 acre-feet) has a regular, elongated pattern and does not display any apparent sign of flow
disruption from other wells or potential aquifer boundaries. No evidence of vertical flow was observed in
the capture zones delineated for SW Well 1A. The capture zones exhibit a narrow and elongated pattern
due to the highly transmissive nature of the TQu. The six-month and one-, five-, and ten-year time-of-
travel capture zones respectively extend roughly 460, 800, 3,300, and 6,400 feet upgradient from SW
Well 1A. The capture zone is approximately 815 feet wide at its maximum width.
3.3.2 Wells 1A and 2 – Qva Aquifer
The capture zones delineated for Wells 1A and 2 (using a combined annual average pumping rate of 555
gpm based on the combined maximum annual water right volume of 894.92 acre-feet) are irregularly
shaped and noticeably different than the capture zone for SW Well 1A. In particular, there is a bend in the
mid part of the five-year capture zone, which results from a combination of factors, including the presence
of several domestic wells, the close proximity of model boundaries to the capture zone, and a decrease in
aquifer hydraulic conductivity (from 640 ft/d to 70 ft/d). The width of the capture zone for Wells 1A and 2 is
wider than the SW Well 1A, which results from differences in aquifer thickness. The model thickness of
the Qva is considerably less than the thickness of the TQu (Appendix C).
Vertical flow from the underlying Qf to the Qva is predicted by the model in close proximity of Wells 1A
and 2 (west side of capture zone), and also from the model’s river boundary downwards to the Qva in the
south-western part of the capture zone where groundwater movement is predicted to travel west-east for
a short distance. Because the WHPA model analyses were performed using steady-state simulations
(i.e., worst-case scenario because the duration of pumping is assumed to be very long, long enough to
reach equilibrium, and does not incorporate seasonal variability in pumping demand), vertical migration of
groundwater is expected to be less than predicted by the model.
The new capture zones for Wells 1A and 2 vary from the previous delineations by Robinson and Noble
(2001). Several changes account for the differences:
Pumping rates were revised to incorporate increased capacity at these wells;
A more realistic regional hydraulic gradient (consistent with the existing model) elongate
the capture zones; and
The 2012 Yelm WHPA model represents an improved distribution of transmissivity and
appropriate geological (model) layering to reflect observed hydrostratigraphic conditions.
Consequently, the revised capture zones should be viewed as more representative of actual conditions,
despite being different than those delineated previously.
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4.0 SUSCEPTIBILITY AND CONTAMINANT SOURCE INVENTORY
Aquifer susceptibility is the relative ability with which a contaminant can migrate from the land surface to a
water supply source aquifer. Susceptibility is based primarily on local hydrogeologic factors and well
construction. Aquifer vulnerability considers both the physical susceptibility to contaminant infiltration and
the risk of exposure to contaminants. Exposure risk is primarily associated with land use in relation to the
water supply area and the associated activities or types of chemicals used and/or stored.
4.1 Susceptibility Assessment
The primary factors influencing aquifer susceptibility include:
Well construction, integrity, and usage;
Aquifer type (confined or unconfined); and
Characteristics of the hydrogeologic system.
For example, with all else being equal, a relatively deep confined aquifer is less susceptible to
contamination than a shallow, unconfined aquifer. In addition, wells that have been poorly constructed or
improperly sealed and cased can potentially serve as a pathway for contaminants despite whether the
well is deep and completed in a confined aquifer. The main mechanisms for transport of contaminants to
the subsurface include:
Discharge to the ground surface – Discharge of chemical products or waste materials
through spills, stormwater runoff and/or intentional disposal. Such materials could
infiltrate the surface sediments and potentially reach a drinking water source aquifer;
Discharge to surface water bodies – Depending on its connection and interaction with
groundwater, surface water bodies could transport contaminants to an aquifer system
through natural recharge; and
Improperly abandoned or poorly constructed wells – Wells that have been improperly
decommissioned or constructed with inadequate surface seals could act as direct
conduits for transport of potential contaminants to an aquifer.
Based on the DOH guidelines, the susceptibility of a well is rated as high, moderate or low. Wells 1A and
2 are considered by the State Department of Health to have high susceptibility due to their relatively
shallow depths and the highly transmissive nature of the Qva aquifer in this area. Despite both wells
being completed in and obtaining water from the confined Qva aquifer, Well 2 is considered more
susceptible due to its age. SW Well 1A, completed in the deep and confined TQu aquifer and sealed to
approximately 328 feet below ground surface, is considered to have the lowest level of susceptibility. A
Susceptibility Assessment Form for the City’s planned additional supply well (SW Well 1A) is provided in
Appendix D.
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4.2 Contaminant Source Inventory
An essential component of wellhead protection is generating an inventory of potential sources of
groundwater contamination that may threaten a source of supply. An inventory of potential contaminant
sources within and around the WHPAs for SW Well 1A and Wells 1A and 2 was generated and their
potential risk prioritized based on the following steps:
Environmental database searches to identify known or suspected soil and groundwater
contaminant sources;
Conducting a field survey of the WHPAs to verify sites identified by the database search
and identify any additional potential contamination sources;
Identifying potential groundwater quality concerns associated with land use practices
within the WHPAs; and
Prioritizing exposure risks to the WHPAs.
4.2.1 Database Search
An inventory of known or suspected soil and groundwater contamination sites within a 2.5-mile radius
encompassing the WHPAs was generated by compiling information from the following sources:
Washington Department of Ecology’s Facilities/Sites and Water Well databases;
EPA’s Facility Registration System database; and
Environmental records compiled by Environmental Data Resources, Inc. (EDR). An
Executive Summary of the EDR report is included in Appendix E. Complete results of the
report are included in a CD-ROM attached to the inside back cover of this report.
The findings of known or suspected sites of contamination based on results from these sources are
summarized in a later section.
4.2.2 Field Survey
City of Yelm personnel conducted windshield surveys of the WHPAs in April, 2012. These surveys
included drive-by reconnaissance to verify sites identified by the database search and identify any
additional potential contamination sources. Mail and telephone surveys, door-to-door surveys, and
personal interviews were not performed.
4.3 Land Use
Land zoning within Yelm and the surrounding area generally consists of residential, rural residential,
agriculture, commercial, industrial, institutional, and open-space districts. Figure 3 shows current land-
use zoning categorized into four general land-use types: residential, rural residential,
commercial/industrial, and institutional/open space. Land uses types making up these general
classifications are listed in Table 3.
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Information contained in the following subsections was largely adapted from the City’s Water System Plan
(Brown and Caldwell, 2010) and modified as needed to address any land use types identified in
association with the newly delineated WHPAs.
4.3.1 Residential and Rural Residential
The City of Yelm is predominantly made up of residential districts. Potential contaminant issues related to
residential land use include: fertilizer and pesticide applications, use of petroleum hydrocarbons, small
livestock operations, and nitrate loading and disposal of household chemicals through septic systems.
A primary concern for residential areas, particularly residential areas within the City’s urban growth
boundary (UGB), is the impact of nitrogen. Properly maintained and used septic systems convert organic
nitrogen to nitrate. Most septic drain fields discharge effluent to the unsaturated zone above unconfined
aquifers, and contaminants can percolate to the saturated zone and contaminate groundwater. Livestock
operations and other hobby farming can also result in nitrate entering groundwater.
The City maintains a STEP (Septic Tank Effluent Pump) sewer system and is nearly all sewered. There
are however, some septic systems that remain within the City limits. From the City’s general sewer plan
work, this represents approximately 157 septic systems. The City’s UGB is almost all on septic systems.
The City’s goal is to connect septic systems to their STEP sewer system as they develop or as existing
systems fail.
Hobby farms, lawns and flowerbeds represent potential hazards because they typically receive
application of fertilizers, herbicides, and pesticides. The presence of multiple sources of pesticides can
result in the potential for additive loading to the groundwater system, resulting in a possible progressive
decline in water quality.
Agricultural land uses also present risk concerns. Agricultural activities can cause several types of water
quality problems, mostly resulting from fertilizers, pesticides or manure/wastes. Agricultural activities were
grouped within rural residential areas.
4.3.2 Commercial/Industrial
The most likely potential contaminants related to commercial/industrial sites include, but are not limited to,
petroleum hydrocarbons and metals. These potential contaminants are generally due to the historical or
current presence of heating oil and fuel in underground storage tanks (USTs). Additional potential
contaminants could also be associated with auto repair and metal fabricator facilities.
Petroleum hydrocarbons can become a serious concern for wellhead protection in commercial and
industrial areas, as well as residential areas. There are numerous potential sources for petroleum
hydrocarbons within the WHPA. They include gasoline stations, industrial and commercial operations that
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fuel and maintain equipment and vehicles, home/commercial heating oil tanks and bulk transport of such
fuels. Petroleum hydrocarbons are typically stored in USTs in volumes ranging from 300 gallons per tank
(residential use) to up to 10,000 gallons per tank (gasoline service stations). Large spills involving
petroleum hydrocarbons are a greater risk than small spills (leaks, etc.).
Groundwater contamination from metals is a potential threat at commercial and industrial sites, which
typically handle or use materials with significant metallic constituents (paints, waste oil, etc.), historical
pesticides (historical pesticides were typically metal-based compounds), and metal plating shops
(cyanides and heavy metals).
Hazardous material storage is a common activity associated with industrial and commercial land uses.
Spilled or inappropriate disposal of chemicals poses a significant threat to groundwater quality. Solvents
that leak downwards from the surface or subsurface are a major threat to water supplies, as a small
quantity can affect a large portion of an aquifer or surface water body. Risk from spilled chemicals can be
mitigated by implementing proper handling methods and spill prevention measures.
4.3.3 Institutional/Open Space
Land use activities associated with institutional and open space types include designated forestland and
timberland, parks, and undeveloped land (Table 3). These land use types are expected to have the lowest
potential for contamination because of the nature and low impact of activities occurring there and because
none coincide with any of the delineated WHPAs (Figure 3).
4.4 Potential Groundwater Quality Concerns
The following discussion briefly summarizes the potential groundwater quality concerns associated with
the land use types identified within the WHPAs. These concerns can generally be grouped into five
categories: nitrates, pesticides, petroleum hydrocarbons, metals and corrosive materials. The types of
concerns in relation to land use are summarized in Table 4 and are discussed in more detail below.
Information contained in the following subsections was largely taken from the City’s Water System Plan
(Brown and Caldwell, 2010) and previous WHPP (Robinson and Noble, 2001), and modified as needed to
address any new land uses identified in association with the modified WHPAs.
4.4.1 Nitrates in Groundwater
There are multiple potential sources of nitrate that could be released to groundwater in the WHPAs.
These potential sources include septic systems, livestock operations, and fertilizer applications to lawns,
golf courses, timber growing sites, and sewer systems.
Septic systems are used in areas that are not served by sewer systems. Although the City of Yelm is
nearly all sewered, areas outside the city boundary and within the UGB are on septic. Wastewater
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released from septic systems or leaking sewer systems contains bacteria, nutrients, and may contain
household chemicals. However, the principal concern from poorly maintained and used septic systems is
the impact of nitrogen, which is converted and transported as nitrate in the groundwater system. Nitrate is
the primary constituent of concern because of its relatively high mobility in groundwater systems and its
potential harmful health effects to humans at high concentration levels. Regional studies have shown that
groundwater quality impacts from septic systems used in residential developments vary widely based on
hydrogeologic setting, housing density, and system ages, types, and maintenance.
Though nitrate loading from adequately designed, maintained and operated septic systems is generally
small, an improperly used system in highly porous soils can allow pathogens to reach groundwater
unimpeded. Evidence of this type of septic system failure is not readily visible since drainage from these
systems does not cause ponding or odor problems. As previously mentioned, the City’s goal is to connect
septic systems to their STEP sewer system as they develop or as existing systems fail. In cases where
sewer connection is not possible, there are ways to protect against septic nitrate loading:
Ensure that all new septic systems going into areas of excessively draining soils in the
WHPAs are carefully designed and properly installed; and
Ensure that all water supply wells withdraw water from beneath a protective confining
(low permeability) layer such as till.
Agriculture is an additional land use practice within the WHPAs that could result in the release of nitrate
into the groundwater system. Properly designed and operated livestock facilities can mitigate the potential
for nitrate releases by implementing best management practices defined by the Natural Resources
Conservation Service. Poorly managed facilities can release nitrate via surficial runoff and infiltration to
the underlying groundwater system.
An additional practice that can leach nitrate to the groundwater is fertilization, especially if applied above
recommended rates. Fertilizers usually contain nitrogen in the form of ammonia or nitrate. Though nitrate
is the form most readily taken up by plants, ammonia is usually converted to nitrite, and then nitrate, by
bacteria in soils. Nitrate is highly mobile in groundwater, so fertilizer application in excess of plant uptake
can result in surplus nitrate being transported to groundwater. Fertilizers typically contain other chemicals
that could migrate to groundwater, including potassium, sulfate and phosphorus, but their impact to water
quality is generally not at the same magnitude as the impact from nitrate.
The presence of multiple sources of nitrate in the wellhead protection management areas, primarily in
land use areas designated as rural residential, results in the potential for additive nitrate loading to the
groundwater system and the potential for decline in water quality. Nitrate levels have been below 5 mg/L
in samples collected from Wells 1A and 2 since 2005. Nitrate was below the method detection limit of
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0.0076 mg/L in the initial groundwater quality characterization sample collected at SW Well 1A on
October 13, 2010.
4.4.2 Pesticides
Pesticide use typically ranges from larger-scale treatment by certified applicators to smaller-scale
homeowner use for yard maintenance and pest control. Pesticides are typically used in residential areas,
along transportation corridors, at golf courses, and in farming and forestry operations. For these locations
and land uses, the heaviest use of pesticides may be at farming or forest operations or along
transportation corridors to prevent unwanted plant growth and damage caused by insects. Pesticides
discussed herein include a suite of related products:
Insecticides – The most widely used insecticides available today are of the
organophosphate type. Organophosphates are used in agriculture, in homes and
gardens, and in veterinary practice;
Herbicides – Herbicides are used in transportation corridors, typically by State and
County transportation departments. Herbicides are used mainly to keep highway
shoulders free from unwanted plant growth; and
Fungicides – Fungicides are used extensively in industry, agriculture, and residential
uses for seed grain and crop protection, and control and suppression of molds, mildews,
and yeasts. Typically, fungicides are applied throughout the growing season, whereas
most herbicides and insecticides are applied only once.
There are numerous pesticides that are restricted to permitted use and a wide variety of unpermitted,
commercially available products. When applied in accordance with manufacturer specifications,
pesticides are relatively immobile because they are consumed by the pests or become adsorbed to soil.
Most of the products are toxic to humans and animals in small quantities, with specific risk-bases toxicity
data available for active ingredients in the commonly used products. Not all pesticides are mobile in
groundwater, and not all pesticides are stable or persistent in the environment. Consequently, the
potential for pesticides to migrate to groundwater, degrade or transform into other chemical compounds,
or persist long enough to contaminate groundwater, varies by usage and between individual pesticides
and classes of pesticides.
The likelihood of pesticide use in land use types that coincide with the WHPAs creates the potential for
additive loading to the groundwater system resulting in a possible decline in water quality. To date,
pesticides have not been a detectable problem in the samples collected from Wells 1A and 2. No
synthetic organic compounds (SOCs) or herbicides were detected in the groundwater quality
characterization sample collected at SW Well 1A on October 13, 2010.
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4.4.3 Petroleum Hydrocarbons
There are numerous potential sources for petroleum hydrocarbons within and near the WHPAs. These
include gasoline stations, industrial and commercial operations that fuel and maintain equipment and
vehicles, and home and commercial heating oil tanks. Petroleum hydrocarbons are typically stored in
USTs in volumes ranging from 300 gallons (residential use) to up to 10,000 gallons per tank (gasoline
service stations). Larger storage volume requirements, greater than 10,000 gallons, are typically stored
above ground.
Petroleum hydrocarbons are not highly soluble in water. Their solubility is related to the length of the
hydrocarbon chains that comprise the material. Short chain hydrocarbons, the types which are found in
gasoline, are typically more soluble than longer chain hydrocarbons, which are found in diesel fuel and
heating oil. The greatest potential threat to a wellhead is from sources of petroleum hydrocarbons close
to the wellhead because of the limited potential for natural attenuation in the subsurface. Petroleum
hydrocarbon releases may also be more of a threat at sites where other types of solvent have been
spilled. The materials can sometimes act as co-solvents and increase the solubility of petroleum product,
and, therefore, increase the likelihood of transport of the petroleum hydrocarbons to a wellhead.
Volatile organic compounds (VOCs) have not been detected in Well 2 since 1990 or Well 1A since 2005,
and have never exceeded state drinking water maximum contaminant levels (MCLs). SOCs have never
been detected in Wells 1A or 2. No VOCs or SOCs were detected in the groundwater quality
characterization sample collected at SW Well 1A on October 13, 2010.
4.4.4 Metals
Groundwater contamination from metals is a potential threat at commercial and industrial sites, which
handle, store, or use materials with significant metallic constituents (paints, waste oil, etc.), historical
pesticide use areas (historical pesticides were typically metal-based compounds), and metal plating and
auto repair shops (cyanides and heavy metals). Metals are not highly soluble in water. Their solubility is
generally related to pH and oxidation-reduction potential (Eh) in the aquifer. High concentrations of metals
typically do not migrate far from their source areas because of their low solubility, tendency to adsorb to
clay particles or organic matter, tendency to precipitate (depending on Eh/pH relationships), and/or
tendency to substitute for other minerals in the aquifer. State regulated inorganic contaminants, including
primary and secondary metals, have never exceeded their established contaminant levels at Wells 1A or
2. The only inorganic constituent having a concentration above its regulatory criteria in the initial
groundwater quality characterization sample collected at SW Well 1A on October 13, 2010 was
manganese. Total manganese was detected at 0.15 mg/L. Manganese above the secondary MCL
(SMCL) does not pose a risk to human health or the environment. Meeting the SMCL for manganese is
not a mandatory requirement, and is only provided as a recommendation for aesthetic quality.
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4.4.5 Corrosive Materials
Corrosive materials (acidic and basic compounds) may be present in some products used, or contained in
waste materials generated from or stored at commercial/industrial facilities within the WHPAs. Materials
such as these can change the pH of shallow ground water and induce corrosion problems in structures
that are in contact with the groundwater (foundations, pipelines, etc.). Changing pH of groundwater could
result in mobilizing and/or immobilizing other constituents, like metals, as described above. Extreme
changes in pH may make groundwater unsuitable for human consumption or for use in industrial
processes. However, the buffering capacity of native soils and rock may minimize the migration of
corrosive groundwater. Groundwater pH at Wells 1A and 2 and at SW Well 1A from an initial groundwater
quality characterization sample collected on October 13, 2010, are within the secondary maximum
contaminant level (SMCL) range (6.5-8.5), and no monitored constituents have indicated an apparent
concern regarding corrosive substances.
4.5 Risk Priority Rankings for Potential Contaminant Source Sites
A total of 120 known or suspected soil and groundwater contamination sites were identified by the
database searches (Figure 4). Each site was ranked according to three factors, or decision levels, to
define risk priority. The decision levels were, in decreasing order of importance:
Level I – Proximity of the potential hazard to the WHPA;
Level II – Type of contamination at the site; and
Level III – Straight-line distance to the closest wellhead in feet.
To determine the risk priority rankings, each known and potential contamination site was prioritized using
decision Level I. Sites having equal Level I priority rankings were then further sub-prioritized using
decision Level II. If sites were still equal in priority, they were further sub-prioritized under decision Level
III. The methodology for prioritizing contaminant risk was based on the methodology of the previous
contaminant source inventories (Brown and Caldwell, 2010; Robinson and Noble, 2001). This
methodology is described in the following sections.
4.5.1 Decision Level I – Potential Contaminant Source Site Location Relative to
Wellhead Protection Area
For the first decision level, the prioritization of the known or suspected contaminant source sites was
based on the particular time-of-travel capture zone the site was located within. The Decision Level I sub-
priority rankings are listed in Table 5. Sites located within the 6-month capture zone were assigned a sub-
priority level ranking of one, while sites within the ten-year capture zone were assigned a sub-priority level
ranking of four. In summary, the shorter the travel time, the higher the position in the priority level, with a
level of one being the highest. Sites identified outside of the WHPAs were given a sub-priority level
ranking of five if their location was hydraulically upgradient (i.e., groundwater flow toward the well; similar
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to “upstream” for surface water) and assigned a six if hydraulically downgradient (i.e., groundwater flow
away from the well; or “downstream”).
4.5.2 Decision Level II – Type of Contamination
For the second decision level, the sites were sub-prioritized based on the type of contamination identified
in the state or federal environmental database search results and whether site contamination is known or
suspected. The Decision Level II sub-priority rankings and their associated contaminated site types are
listed in Table 6. Known contaminant sites were assigned sub-priority levels between one and three
depending upon the contaminated site type: confirmed or State cleanup sites were assigned a sub-priority
level of one, whereas voluntary cleanup sites for example were assigned a level of three. Sites with
Leaking Underground Storage Tanks were assigned a level of two. Potential contaminant sites were
assigned sub-priority levels between four and ten. Examples of level four sites include recycling facilities
and hazardous waste generators, whereas facilities and sites of interest for example were assigned a
level of ten. In summary, known contaminant source sites were assigned higher sub-priority levels
(depending upon contaminated site type) than potential contaminant source sites.
4.5.3 Decision Level III – Straight Line Distance from Wells
For known contamination sites, or potential contamination sites having the same sub-priority level ranking
for both Decision Levels I and II, the straight-line distance (in feet) from the site to the closest wellhead
was used to sub-prioritize further. Sites closer to a supply source were given a higher priority level
position than sites further away.
4.6 Contaminant Source Inventory Results
The following discussion presents sites identified by the contaminant source inventory and their
associated risk priority rankings. A total of 120 potential contaminant source sites were identified by the
database searches and windshield survey, and ranked according to the scheme outlined above. A
complete list of rankings is provided in Table 7 and their locations shown on Figure 4. Potential
contaminant sources identified within the 100-ft Sanitary Control Area (SCA) for Wells 1A and 2 and SW
Well 1A are also discussed.
4.6.1 Wells 1A and 2
Of the 120 potential contaminant source sites identified, 23 coincide with the WHPAs delineated for Wells
1A and 2. Ten sites are located in the six-month capture zone and the remaining thirteen are within the
one-year capture zone. The potential contaminant source locations coinciding with each WHPA zone for
Wells 1A and 2 are shown in Figure 5 and briefly discussed below. Each site is further described in Table
7.
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Sanitary Control Area (SCA) – Wells 1, 1A and 2 are each located in separate secured
well houses and the site surrounded by security fencing. Small amounts of oils,
lubricants, cleaning fluid, and paint are stored within the buildings. The building for Well
1 includes a separate space for storage of caustic soda. A 200kW generator with 300
gallon capacity diesel fuel tank is located adjacent to the Well 2 pump house on a
concrete pad with a 6-inch curb. The wells are located within 100 feet of a public roadway
or parking lot. Spill prevention, containment, and response/treatment measures to
address these potential contaminant concerns and minimize potential impacts in the
event of an accidental release are described in Chapter 5 and Appendix 5 of the City’s
WSP (Brown and Caldwell, 2010). To date, there have been no known spills at the well
site;
Six-Month Capture Zone – The six-month capture zone extends approximately 3,500 feet
upgradient (to the southeast) of Wells 1A and 2. A total of 10 sites (Sites 1 through 10)
were identified within this zone, two of which are identified as known contaminated
sources (Sites 1 and 2 on Figure 5). Site 1, the highest ranked site, is a gas station that
was identified on the Confirmed and Suspected Contaminated Site List and has received
a No Further Action determination. Site 2 is a drugstore identified as a small quantity
hazardous waste generator. The remaining sites are primarily businesses that store or
handle hazardous chemicals, have underground storage tanks onsite, or that have been
identified as having a 5D2-class Underground Injection Control well for stormwater
purposes.
One-Year Capture Zone – The one-year capture zone extends approximately 6,300 feet
upgradient of Wells 1A and 2. A total of 13 sites (Sites 11 through 23) were identified
within this zone, one of which was identified as a known contaminated source (Site 11 on
Figure 5). Site 11 is gas station/convenient store identified on the Emergency Response
Notification and Hazardous Materials Incident Report Systems lists for an accidental spill
of 20 gallons of unleaded gasoline. The remaining sites are primarily businesses that
store or handle hazardous chemicals or that have underground storage tanks onsite.
Five- and Ten-Year Capture Zones – No known or potential contaminant sites were
identified in the five- or ten-year capture zones. Land use type in these zones is
designated as rural residential. Potential groundwater quality concerns associated with
these land use types were discussed in previous sections of this report.
4.6.2 SW Well 1A
SW Well 1A is located in an undeveloped area zoned for residential land use held in full legal control by
the City of Yelm (see Appendix F for Declaration of Covenant). A facility to enclose and protect SW Well
1A is currently in the design phase, but has not been constructed. Currently, the well casing terminates
approximately three feet above the ground surface and is capped and secured. The facility will include a
secured well house and flow monitoring components with a separate area to store and handle
disinfection/treatment chemicals, and may also include a backup power generator for emergency use.
The well site/facility will be controlled by security fencing. When developed, the area will likely include
grass cover, sidewalks and a paved driveway. The Spill Response Plan (discussed in Section 5.4) will
need to be updated to include this well before it is put into service.
No known or suspected soil or groundwater contamination sites were identified within the 100-ft SCA of
SW Well 1A (Appendix F). When the facility is constructed and the site fully developed, potential
contaminant sources within the SCA may include those associated with water treatment chemicals
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handled or stored at the well site or stormwater runoff. A stormwater retention pond currently exists east
of SW Well 1A, but is planned for relocation before the well is put into service. At full site/area
development, the SCA will partially overlap a public roadway, but because the well is sealed to a depth
approximately 328 feet below ground surface and obtains water from a deep aquifer overlain by two
confining layers (Qt and Qf), SW Well 1A is considered to have the lowest level of susceptibility and
infiltration of surface contaminants is unlikely. Infiltration of surface contaminants from stormwater is
further mitigated by the City by routinely sweeping roadways and cleaning stormwater catch basins.
No known or suspected soil or groundwater contamination sites were identified within the six-month or
one-, five-, and ten-year WHPA capture zones (Figure 4).
Land use type within the SCA, six-month and one-year capture zones is designated as residential with
some areas in future transition to commercial and institutional space, whereas types within the five- and
ten-year capture zones are designated as both residential and rural residential. Potential groundwater
quality concerns associated with these land use types were discussed in previous sections of this report.
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5.0 MANAGEMENT STRATEGY
The key elements of a wellhead protection program include a management strategy, a spill response
plan, a contingency plan and recommended improvements. The key management strategies include
monitoring and data management, land use, regional coordination, and public education and notification
programs. This chapter presents the management strategies the City currently employs, and identifies
recommended improvements.
5.1 Land Use and Regulatory Control
Controlling future development in WHPA capture zones through land use regulations is an important tool
used by the City and Thurston County to reduce the risk of groundwater contamination. The Yelm
Municipal Code (YMC) is the City’s primary mode of enforcement and regulation of activities within the
WHPAs.
5.1.1 City of Yelm
YMC 14.08 identifies general and specific-use performance standards for areas designated as critical
aquifer recharge areas (CARA). The general performance standards [YMC 14.08.110(C)] address
proposed activities and development as follows:
Proposed activities will not cause contaminants to enter the aquifer and will not adversely
affect recharging of the aquifer;
The proposed activity must comply with the water source protection requirements and
recommendations of the U.S. Environmental Protection Agency, Washington State
Department of Health, and the Thurston County Environmental Health Division; and
All new development, redevelopment, and small parcel development shall meet the water
quality requirements of the stormwater manual as adopted by the city of Yelm.
Special use performance standards [YMC 14.08.110(D)] address:
Storage Tanks – All storage tanks proposed to be located in a CARA must comply with
local building code requirements and must conform to requirements for underground
[YMC 14.08.110(D)(1)(a)] and aboveground [YMC 14.08.110(D)(1)(b)] storage tanks;
Vehicle Repair and Servicing – Such activities must be conducted over impermeable
pads and within a covered structure. Chemicals used must be stored in a manner that
protects them from weather and provides containment should leaks occur. No dry wells
shall be allowed in CARAs on sites used for vehicle repair and servicing; and
Use of Reclaimed Water for Surface Percolation or Direct Recharge – Water reuse
projects for reclaimed water must be in accordance with the adopted water or sewer
comprehensive plans that have been approved by the state Departments of Ecology and
Health.
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5.1.2 Thurston County
Thurston County assumes leadership of determining land use activities within WHPAs located outside city
limits. Thurston County has adopted a Nonpoint Source Pollution Ordinance, which in part targets small
quantity generators within WHPAs within Thurston County. The purpose of this ordinance is to minimize
environmental impacts from hazardous materials. The County also implements a Business Pollution
Prevention Program to provide education and technical assistance inspections for small quantity
generators. This program is sponsored by the Thurston County Hazardous Waste Program and
addresses activities such as proper storage, use, floor washing activities, incidental dumping, abandoned
materials, and intentional ground disposal of hazardous wastes.
The County’s primary mechanism for controlling land use within WHPAs is the Critical Areas Ordinance
(CAO). Functions of the CAO include controlling types of land use and residential densities within
hydrogeologically-sensitive areas. The County also requires:
Turf Management Plans and Integrated Pest Management Plans to identify potential
sources of groundwater contamination; and
Farm Plans for agriculture located within one-year capture zones.
Improvements to County land use can be encouraged by the City, but are ultimately the County’s
authority. In 2005, Thurston County updated its CARA section of the Critical Areas Ordinance. However,
these changes have not been adopted at this time.
5.2 Public Education
Public education and voluntary action are critical to protecting public and private drinking water supplies.
Public participation in the groundwater protection planning and management strategies increases
awareness and ownership of the program. Public education is also an important component of non-
regulatory wellhead protection strategies which rely on homeowners and residents to properly maintain
private wells and correctly dispose of household hazardous wastes. Public education can be
accomplished in a number of ways, including brochures, mailers, utility bill inserts, press releases, booths
at special events, meetings and workshops. Public education programs focused on wellhead/groundwater
protection can emphasize the following issues:
Proper use of household chemicals, especially lawn chemicals such as fertilizers and
pesticides. Many homeowners fail to use lawn chemicals in accordance with the label,
and chemical over-use, especially when combined with over-watering, can lead to
impacts to groundwater supplies. Educate homeowners about the importance of following
the manufacturer’s instructions when using lawn and household chemicals;
Correct disposal of household hazardous wastes including waste oils, paint, lawn
chemicals, and other household hazardous materials. Inappropriate disposal of these
substances, including pouring chemicals on the ground or down the drain into a septic
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system, can create a threat to groundwater quality. The implementation of periodic no-
cost hazardous waste collection days can be an effective tool for encouraging proper
disposal, especially when paired with public education efforts;
Appropriate maintenance of private wells and septic systems. Public education efforts to
encourage correct maintenance of septic systems and private wells can include making
resources available on a website, flyers, or brochures; and
Increase awareness of residents and business owners/operators located in wellhead
protection areas. Hands-on learning and technical assistance opportunities for
households, business owners, teachers, and students can help develop knowledge,
teach new skills, and ultimately change the attitudes, practices, and behaviors of those
living or working in wellhead protection areas.
5.3 Notifications
This section includes notification lists and example letters to both the identified potential contaminant
sources and to the regulatory agencies, local governments, and emergency responders notifying them of
the City’s WHPAs.
5.3.1 Notification to Owners of Potential Sources of Contamination
Separate letters of notification will be delivered to those owners/operators located within the WHPAs and
identified as potential sources of contamination. These letters will include a map of the WHPAs and the
locations of potential and known sources of ground water contamination. The list of owners/operators to
be contacted are those identified in Table 7 as having prioritizations of 1 and 2 under the Decision Level I
risk priority ranking (Sites 1 through 23). An example letter is included in Appendix G.
5.3.2 Notification to Regulatory Agencies and Local Governments
Regulatory agencies and local governments will be provided separate letters of notification. These letters
will include information of the water-supply system, WHPA boundaries, and locations of potential and
known sources of ground water contamination within the wellhead protection area boundaries. An
example letter and list of appropriate regulatory agencies that should be notified after any changes are
made to WHPAs are included in Appendix G.
5.3.3 Notification to Local Emergency Responders
Separate letters of notification will be delivered to the appropriate emergency responders. These letters
will include results of the susceptibility assessment and the findings of the wellhead protection inventory
so that local emergency responders can evaluate whether changes in emergency response procedures
(e.g., incident/spill response) are needed to better protect groundwater within the wellhead protection
areas. The list of incident responders to be contacted and provided with information regarding the City’s
WHPAs is included in Appendix G.
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5.4 Spill Response Plan
Spill response planning is an important aspect of both an emergency management plan and a wellhead
protection program. Chapter 5 of the City’s WSP (Brown and Caldwell, 2010) describes spill prevention
measures currently in place to prevent the accidental release of pollutants in the area of Wells 1A and 2,
and describes spill treatment and response actions to be taken to minimize potential damages in case a
spill does occur. This plan remains valid as no significant changes that would impact the emergency
response measures identified have occurred since the WSP was last updated in 2010. The Spill
Response Plan should be reevaluated and updated as needed to address any site specific conditions
after the SW Well 1A facility is constructed.
5.5 Contingency Plan
A contingency plan is required as part of the WHPP in the event that a natural disaster or contamination
event results in the temporary or permanent loss of the City’s water supply source. Chapter 5 of the City’s
WSP (Brown and Caldwell, 2010) presents an initial evaluation of the feasibility of developing alternative
sources of supply, including interconnects with other neighboring water systems or distribution of
purchased water. Based on this initial evaluation, neighboring systems have little extra capacity and
would provide little benefit in terms of contingency planning of the loss of an existing source. The most
effective contingency effort is the development of SW Well 1A.
SW Well 1A was drilled and tested in 2010 to explore the potential of developing a new groundwater
source from a deeper portion of the regional aquifer system (the TQu unit). Aquifer and water quality
testing has shown that the well is capable of producing high quality water at a yield of 2,100 gpm and is
planned to be in operation in late 2014 or early 2015.
Because SW Well 1A withdraws water from a deep well-confined portion of the regional aquifer system,
its hydraulic connection to shallower aquifer units is limited. Results from a pumping test conducted to
assess the deep aquifer system did not result in observable response in nearby observation wells
completed in overlying units suggesting little-to-no hydraulic connection between the shallow aquifer
source for Wells 1A and 2 and the deeper TQu (Golder, 2010). Consequently, SW Well 1A is much less
vulnerable to surface contamination and could function as an emergency supply source in the event of the
temporary or permanent loss of Wells 1A and 2, depending upon the magnitude and characteristics of the
contamination.
5.6 General Considerations for New Monitoring Wells
Groundwater quality monitoring can provide early notification to allow for sufficient time to implement
emergency response or contingency planning measures in the event that a drinking water source
becomes threatened. Figure 6 shows the general locations recommended for groundwater quality
monitoring in the WHPA for Wells 1A and 2. The general locations targeted are within the model predicted
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six-month and one-year capture zones and downgradient of known or suspected soil or groundwater
contamination sites. Factors associated with selecting an actual location, such as land ownership and
access, have not been considered at this time. The recommended general locations are discussed below
and listed in decreasing priority:
MW 1 – Located within the six-month capture zone downgradient of one known (Site 1)
and four potential (Sites 6-9) contaminant sources;
MW 2 – Located in the six-month capture zone downgradient of one known (Site 2) and
four suspected (Sites 3-5 and 10) contaminant sources;
MW 3 – Located with the one-year capture zone downgradient of several potential
contaminant source sites; and
MW 4 – Located within the one-year capture zone southwest and cross-gradient of MW-
3. This location is recommended to monitor for potential contaminants associated with
rural residential land use activities, including agricultural.
The monitoring wells should be completed within the Qva aquifer to depths between approximately 50
and 70 feet bgs.
Because no known or suspected contamination sites were identified within any of the WHPAs for SW
Well 1A and because the well is sealed into a deep aquifer overlain by two confining layers, no monitoring
wells are recommended at this time. Groundwater quality monitoring in the SW Well 1A WHPAs should
be reconsidered if subsequent contaminant inventory updates identify known or suspected soil or
groundwater contamination sites that have the potential to threaten this source of supply.
5.6.1 Monitoring and Data Management
Recommended monitoring at these wells should include both water quality and water level monitoring.
Analytes recommended for water quality monitoring include nitrate, total coliform bacteria, VOCs, and
select metals and herbicides. For MWs 1 through 3, the recommended sampling frequency should be
biannually for select herbicides and quarterly for the remaining analytes. MW 4 should be sampled for all
of these same analytes, but on a biannual basis. Groundwater levels are recommended to be measured
at each well during each water quality sampling event. The proposed sampling schedules should be
reviewed after the first complete year of monitoring based on the initial results.
Data collected from the network of monitoring wells should be maintained in a database. Laboratory water
quality test results should be reviewed for quality control and assurance, compared to state drinking water
quality criteria and water quality data collected at Well 1, and evaluated for declining water quality trends.
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6.0 SUMMARY
Golder has prepared this report to update the City of Yelm’s Wellhead Protection Plan in order to prevent
contamination of groundwater used as the City’s source of drinking water supply. The following WHPP
updates have been made:
An updated discussion of the hydrogeologic characteristics of the area now that a deeper
supply source aquifer (TQu) has been identified;
Revised WHPAs for Wells 1A and 2 using a numerical groundwater flow model and the
planned pumping capacities;
Newly delineated WHPAs for the planned SW Well 1A supply source using the numerical
groundwater flow model and planned pumping capacity;
Susceptibility assessment for the planned SW Well 1A source supply; and
A contaminant source inventory within the updated and newly defined WHPAs.
6.1 City Production Wells
Wells 1A and 2 are the City’s sole drinking water supply sources. These two wells are completed in and
obtain water from the confined Qva aquifer. Based on the findings from a deep groundwater resource
exploration project in the Tahoma Terra area west of downtown, the City has constructed a new
groundwater supply well (SW Well 1A). SW Well 1A is completed in and obtains water from the confined
TQu aquifer. Further development of this well as a drinking water supply source is currently underway.
6.2 Wellhead Protection Area Delineations
The WHPAs for the City’s current and planned supply wells were delineated using the most up-to-date
version of the McAllister Groundwater Model utilized to support the City’s water right applications and
mitigation program. This model was adapted to delineate updated WHPAs for the City’s current supply
sources (Wells 1A and 2) and new WHPAs for the City’s planned source (SW Well 1A). The adaptation
resulted in a separate Yelm-specific tool that is referred to as the Yelm 2011 WHPA Model.
6.3 Known Potential Contaminant Sources
A total of 120 known or suspected soil and groundwater contamination sites were identified by a field
survey within the WHPA boundaries and environmental database searches within a 2.5-mile radius
encompassing the WHPAs. Of the 120 potential contaminant source sites identified, 23 coincide with the
WHPAs delineated for Wells 1A and 2. Ten of 23 sites identified are located within the six-month capture
zone, two of which were identified as known contaminated sources (Sites 1 and 2 on Figure 5). The
remaining thirteen sites are within the one-year capture zone, one of which was identified as a known
contaminated source (Site 11 on Figure 5). No known or potential contaminant sites were identified in the
five- or ten-year capture zones for Wells 1A and 2. No known or suspected soil or groundwater
contamination sites were identified within any of the WHPA capture zones delineated for SW Well 1A.
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6.4 Management Strategy
The City currently employs the following management strategies to prevent and protect against
contamination of the City’s drinking water supply sources:
Controlling future development in WHPA capture zones through land use regulations;
Enforcement and regulation of activities within the WHPAs through the City’s Municipal
Codes;
Notification to owners and operators of potential sources of contamination, and the
agencies or jurisdictions that regulate them, that they reside within the City’s WHPA
boundaries;
Spill prevention measures to prevent the accidental release of pollutants, and spill
treatment and response actions to be taken to minimize potential damages in case a spill
does occur; and
Contingency measures to implement in the event that a natural disaster or contamination
event results in the temporary or permanent loss of the City’s water supply source.
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7.0 RECOMMENDATIONS
The following pollution prevention and risk reduction measures are recommended to compliment the
City’s current commitment to protect its groundwater sources and maintain a safe and reliable community
water supply:
Adopt new WHPAs – To continue to protect the valuable groundwater resource, the City
should use the newly-defined WHPAs to enforce land use restrictions on certain high-risk
activities. The City should also engage in discussions with the operators of potential non-
point source contaminants, such as golf courses and farmers, to establish and apply best
management practices to reduce the risk of impacting the source waters.
Public Outreach/Education – Increase public awareness and ownership of the wellhead
protection program through outreach efforts focused on groundwater protection, such as
brochures, utility bill inserts, press releases, booths at special events, meetings and
workshops, and/or posting public signage throughout the parts of the community that are
located within the WHPAs.
Groundwater Protection Monitoring Wells – We recommend installation of new monitoring
wells dedicated to determine the groundwater quality from known or suspected
contaminated sites and improve the understanding of the local groundwater conditions.
These wells are as follows:
MW 1 – Located within the six-month capture zone downgradient of one known (Site
1) and four potential (Sites 6-9) contaminant sources;
MW 2 – Located in the six-month capture zone downgradient of one known (Site 2)
and four suspected (Sites 3-5 and 10) contaminant sources;
MW 3 – Located with the one-year capture zone downgradient of several potential
contaminant source sites; and
MW 4 – Located within the one-year capture zone southwest and cross-gradient of
MW-3. This location is recommended to monitor for potential contaminants
associated with rural residential land use activities, including agricultural.
Water Quality Monitoring Data – Water quality data collected from the network of
monitoring wells should be maintained in a database. Laboratory water quality test results
should be reviewed for quality control and assurance, compared to state drinking water
quality criteria and water quality data collected at Well 1, and evaluated for declining
water quality trends.
Spill Response Plan Update – The Spill Response Plan should be reevaluated and
updated as needed to address any site specific conditions pertaining to SW Well 1A after
the facility is constructed.
With these actions, it is our opinion that the City of Yelm will both comply with State regulations, and
continue to ensure that the long-term supply of high-quality drinking water remains available to its
residents.
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8.0 SIGNATURE PAGE
GOLDER ASSOCIATES INC.
David Banton, RG, LHG Kenneth Janssen
Principal Hydrogeologist Senior Project Hydrogeologist
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9.0 REFERENCES
Brown and Caldwell, 2010, City of Yelm Water System Plan, July 2101.
City of Yelm, 2011, Water Right Mitigation Plan, Mitigation for City of Yelm Water Right Application: G2-
29085 – Priority Date January 10, 1994. February 2011.
CDM, 2002a. Model Construction and Steady-State Calibration – McAllister Wellfield Numerical Model.
Prepared for the City of Olympia Public Works Dept. April 2002.
CDM, 2002b. Final Report – McAllister Wellfield Numerical Model. Prepared for the City of Olympia Public
Works Dept. July 2002.
Drost, B.W., G.L. Turney, N.P. Dion, and M.A. Jones, 1999. Conceptual Model and Numerical Simulation
of the Ground-Water Flow System in the Unconsolidated Sediments of Thurston County,
Washington. U.S. Geological Survey Water Resources Investigation Report 99-4165. Prepared
in cooperation with Thurston County Department of Health.
Environmental Data Resources Inc. 2012, Wellhead Protection Contaminant Source Inventory, Inquiry
Number: 3269533.1s, March 2012
EPA Facility Registry System. 2012. Geography Search on City Name: = “Yelm” and State: = “WA”.
Obtained 03/16/202 from http://www.epa.gov/enviro/html/fii/fii_query_java.html
Golder Associates, Inc., 2008a. Groundwater Modeling of Water Right Applications and Transfers.
Prepared for Yelm of Yelm. January 29, 2008.
Golder Associates, Inc., 2008b. Future Demand/Supply Forecast and Groundwater Modeling for
Mitigation Planning. October 10, 2008.
Golder Associates, Inc., 2009, Technical Memorandum, Thompson Creek Conceptual Hydrogeologic
Model, Portland, Oregon, December 2009.
Golder Associates, Inc., 2010, The City of Yelm Southwest Well 1A Development Report: Drilling, Well
Construction and Testing, Portland, Oregon, March 2010.
Noble, J. B.; Wallace, E. F., 1966, Geology and Ground-Water Resources of Thurston County,
Washington; Volume 2: Washington Division of Water Resources Water-Supply Bulletin 10, v. 2,
141 p., 5 plates.
Pollock, D.W, 1994, User’s guide for MODPATH/MODPATH-PLOT, Version 3: A particle tracking post-
processing package for MODFLOW, the U.S. Geological Survey finite-difference ground-water flow
model. U.S. Geological Survey Open-File Report 94-464. September 1994.
Robinson and Noble, Inc., 1995, Preliminary Ground Water Exploration for the Thurston Highlands
Associates. January, 1995.
Robinson and Noble, Inc., 2001, City of Yelm Wellhead Protection Plan. May, 2001.
United States Geological Survey (USGS), 1990a, 7.5-minute McKenna Quadrangle, Washington,
1:24,000.
United States Geological Survey (USGS), 1990b, 7.5-minute Tenalquot Prairie Quadrangle, Washington,
1:24,000.
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Washington State Department of Ecology. 2010. Land Use: Washington State 2010. Obtained 03/16/2012
from http://www.ecy.wa.gov/services/gis/data/data.htm#l
Washington State Department of Ecology. 2011. Facility/Site. Obtained 03/16/2012 from
http://www.ecy.wa.gov/services/gis/data/data.htm#f
Western Regional Climate Center (WRCC), 2010, Historical Climate Information. http://www.wrcc.dri.edu/.
Accessed July 1, 2010.
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Tables
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REPORT TABLES 1 - 7.xlsx City of Yelm/WHPP/WA
DOH
Source
No.Alternative Name
Well
Tag ID Status/Usage
Well
Diameter
(in)
Well
Depth
(ft bgs)
Screened
Interval
(ft bgs)
SWL
(ft bgs)
Capacity
(gpm)
TRS
Location (1)Aquifer Unit
01 Well 1 AAA-943 Active/Emergency 12 63 53-63 30 275
02 Well 2 AAA-944 Active/Permanent 12 61 50-61 30 1,700
03 Well 3 AAA-945 Decommissioned 12 40 n/a n/a 500
04 Well 4 3A AGP-800 Not Active/Emergency 12 55 24-34 16 400
05 Well 1A ALG-255 Active/Permanent 12 67 57-67 30 1,700 T17N R2E S19 Qva
n/a SW Well 1A ALM-113 New active/permanent source pending
DOH approval 12 633
369-437
487-547
611-625
103 2,100 T17N R1E S23 TQu
TABLE 1
CITY OF YELM WELLS
Notes: (1) Qvr - Recessional Outwash; Qvt - Glacial Till; Qva - Advance Outwash; Qf - Kitsap Formation; Qc - Salmon Springs(?) Drift; Tqu - Unconsolidated and Undifferentiated Deposits; and Tb - Bedrock.
Further descriptions of each unit are provided in Table 2.
T17N R2E S20
T17N R2E S19 Qva
Qvr?
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TABLE 2
LITHOLOGIC AND HYDROLOGIC CHARACTERISTICS OF GEOHYDROLOGIC UNITS (Drost et al., 1999)
SOURCE: Drost et al., 1999
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REPORT TABLES 1 - 7.xlsx City of Yelm/WHPP/WA
Residential Rural Residential Commercial and Industrial Institutional and Open Space
All other residential not elsewhere coded Agriculture classified under current use chapter 84.34 RCW Arterial commercial Educational services
High density residential 14 Long term agriculture Automobile parking Designated forest land under chapter 84.33 RCW
Household, 2-4 units Rural Central business district Institutional
Household, multiunits (5 or more)Rural 1/10 Commercial Institutional district
Household, single family units Rural residential 1/5 Contract construction services Military reservation
Low density residential Rural residential resource 1/5 Governmental services Open space
Master planned community Urban reserve 1/5 Heavy commercial Open space land classified under chapter 84.34 RCW
Moderate density residential Industrial Open space park
Residential Large lot commercial Parks
Residential lamird 1/1 Light industrial Timberland classified under chapter 84.34 RCW
Residential lamird 1/2 Mining activities and related services Undeveloped land
Residential lamird 2/1 Miscellaneous services
Neighborhood commercial
Other retail trade
Professional services
Retail trade - automotive, marine craft, aircraft, and accessories
Retail trade - eating and drinking
Retail trade - general merchandise
Utilities
TABLE 3
LAND USE TYPES
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REPORT TABLES 1 - 7.xlsx City of Yelm/WHPP/WA
Land Use Category Nitrates
Pesticides and
Fertilizers
Petroleum
Hydrocarbons Metals
Corrosive
Materials
Residential and Rural Residential Yes Yes Yes Limited No
Commercial/Industrial No Yes Yes Yes Yes
Institutional/Open Space Yes Yes Limited Limited No
TABLE 4
LAND USE RISK CONCERNS
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REPORT TABLES 1 - 7.xlsx City of Yelm/WHPP/WA
Sub-Priority
Level Description
1 WHPA Zone 1 (6 month time of travel capture zone)
2 WHPA Zone 2 (1 year time of travel capture zone)
3 WHPA Zone 3 (5 year time of travel capture zone)
4 WHPA Zone 4 (10 year time of travel capture zone)
5 Outside the WHPAs - Hydraulically Upgradient of the WHPA(1)
6 Outside the WHPAs - Hydraulically Downgradient of the WHPA(1)
TABLE 5
LEVEL I SUB-PRIORITIZATION: POTENTIAL CONTAMINANT SOURCE SITE LOCATION
RELATIVE TO WELLHEAD PROTECTION AREA
NOTES: (1) Determined based on the Potentiometric Surface Map Presented in Appendix C.
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REPORT TABLES 1 - 7.xlsx City of Yelm/WHPP/WA
Sub-Priority
Level
Known or Suspected
Contamination Type of Contaminated Site Code
1 Known Confirmed and Suspected Contaminated Sites
State Clean-up Sites
CSCSL NFA
SCS
2 Known Leaking Underground Storage Tanks LUST
3 Known
Washington Independent Clean-up Report
Emergency Response Notification System
Hazardous Materials Incident Report System
Voluntary Clean-up Site
DOE Enforcement Action Final
ICR
ERNS
HMRIS
VCP
ENF F
4 Potential
Resource Conservation Recovery Act Sites
Toxic Chemical Release System
Facility Index System
Emergency/Hazard Chemical RPT Tier 2
Recycling Facility
Hazardous Waste Generators, Managers, or Planners
Hazardous Waste Manifest Information
RCRA
TRIS
FINDS
EHCR2
RECYCLING
HAZ WASTE
MANIFEST
5 Potential Operational Underground Storage Tanks
Financial Assurance for a UST
UST
FA
6 Potential Active or Inactive Facilities that fail to meet RCRA
Solid Waste Facility or Landfill site
SPILLS
SFW/LF
7 Potential FIDRA/TSCAL Tracking System (Pesticide Use)FTTS
8 Potential Clandestine Drug Labs CDL
9 Potential National Pollution Discharge Permit NPDES
10 Potential Underground Injection Wells
Facilities and Sites of Interest to WA DOE
UIC
All SITES
TABLE 6
LEVEL II SUB-PRIORITIZATION: TYPE OF CONTAMINATION
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REPORT TABLES 1 - 7.xlsx 1 of 5 City of Yelm/WHPP/WA
I II III (ft)
1 EDR 24 YELM SHELL 706 YELM AVE E, YELM, WA 98597 UST, FINANCIAL ASSURANCE, RCRA-NONGEN, VCP, ICR,
FINDS, MANIFEST, LUST FACILITY, CSCSL NFA 1 1 1,814
2 DOE 19 YELM RITE AIDE VANCIL RD & SR507 , YELM, WA 98597 VCP 1 3 2,849
3 EDR 13 RITE AID 5286 YELM AVE 909 YELM AVE E, YELM, WA 98597 RCRA, ALL SITES, FINDS, MANIFEST, HAZARDOUS
WASTE GENERATOR, HAZARDOUS WASTE PLANNER 1 5 2,508
4 EDR 11 JIFFY LUBE STORE 2812 1002 E YELM AVE, YELM, WA 98597 ALL SITES, FINDS, EMERGENCY/HAZ CHEM RPT TIER2 1 5 2,895
5 WSS 16 SAFEWAY GAS STATION 1109 YELM AVE E, YELM, WA 98597 UST 1 5 3,180
6 WSS 20 WALT'S TIRE SERVICE 509B YELM AVE E, YELM, WA 98597 ALL SITES 1 10 1,225
7 WSS 21 NAPA AUTO PARTS 509A YELM AVE E, YELM, WA 98597 ALL SITES 1 10 1,225
8 EDR 5 CHURCH OF JESUS CHRIST OF LDS 10423 CLARK ROAD SE, YELM, WA 98597 UIC 1 10 1,726
9 WSS 23 EAGLE CAR WASH 403 YELM AVE, YELM, WA 98597 ALL SITES 1 10 2,023
10 WSS 22 LES SCHWAB TIRE 811 YELM AVE E, YELM, WA 98597 ALL SITES 1 10 2,734
11 EDR 7 16507 STATE ROUTE 507 SE 16507 STATE ROUTE 507 SE, YELM, YELM, WA HMRIS, ERNS 2 3 4,521
12 EDR 17 RAINIER CHEVRON 16518 YELM AVE SE, YELM, WA 98597 FINDS, UST 2 5 4,472
13 EDR 9 HASSAN CORPORATION 16507 SR 507, YELM, WA 98597 FINANCIAL ASSURANCE, RCRA, UST, HAZARDOUS
WASTE GENERATOR 2 5 4,545
14 DOE 24 YCOM NETWORKS CONST YARD 10812 BALD HILL RD SE , YELM, WA 98597 EMERGENCY/HAZ CHEM RPT TIER2, ALL SITES, FINDS 2 5 5,826
15 EDR 4 PUGET SOUND ENERGY- PSE 10730 MORRIS ROAD, YELM, WA SPILLS 2 7 4,943
16 WSS 19 O'REILLY'S AUTO PARTS 902 ALGIERS DR NE, YELM, WA 98597 ALL SITES 2 10 2,433
17 WSS 18 YELM FAMILY DENTISTRY 106 PLAZA DRIVE, YELM, WA 98597 ALL SITES 2 10 3,716
18 WSS 13 QT SPA NAILS B102 CREEK ST, YELM, WA 98597 ALL SITES 2 10 4,208
19 WSS 14 DESERT TANING B104 CREEK ST, YELM, WA 98597 ALL SITES 2 10 4,208
20 WSS 17 AUTO ZONE 1210 YELM AVE E, YELM, WA 98597 ALL SITES 2 10 4,208
21 WSS 12 J & I POWER EQUIPMENT 10615 BALD HILL RD, YELM, WA 98597 ALL SITES 2 10 4,762
22 WSS 15 YELM AUTO MALL 16150106TH AVE, YELM, WA 98597 ALL SITES 2 10 4,774
23 WSS 11 DEL'S FARM SUPPLY 10616 BALD HILL RD, YELM, WA 98597 ALL SITES 2 10 4,925
24 EDR 70 LIVINGSTON BOATS INC 406 RAILROAD ST, YELM, WA 98597 RCRA, FTTS, FINDS, MANIFEST, TRIS, HAZARDOUS
WASTE GENERATOR, CSCSL NFA 5 1 1,737
Decision
Rank #Ref #Name
TABLE 7
CONTAMINANT SOURCE INVENTORY AND RISK PRIORITY RANKING
Address List Source Type
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REPORT TABLES 1 - 7.xlsx 2 of 5 City of Yelm/WHPP/WA
I II III (ft)
Decision
Rank #Ref #Name
TABLE 7
CONTAMINANT SOURCE INVENTORY AND RISK PRIORITY RANKING
Address List Source Type
25 EDR 137 BILLS TOWING 801 W YELM AVE, YELM, WA ALL SITES, CSCSL NFA, FINDS, STATE CLEAN-UP SITE 5 1 3,697
26 EDR 151 WOOD FABRICATORS 1001 NE RHOTON RD, YELM, WA 98597 RCRA-NONGEN, ICR, ALL SITES, CSCL NFA, FINDS, LUST
FACILITY, HAZARDOUS WASTE GENERATOR 5 1 4,425
27 EDR 191 FLYING M 35618 HWY 507 S, MCKENNA, WA 98558 UST, LUST FACILITY 5 2 12,312
28 DOE 20 NISQUALLY PINES PROPERTY 8903 PEPPERIDGE LN SE , YELM, WA 98597 VCP 5 3 7,848
29 EDR 182 13431 SOLBERG RD.13431 SOLBERG RD., YELM, WA ERNS 5 3 17,407
30 DOE 46 US DEA NEAT RD YELM 20104 NEAT RD, YELM, WA 98597 HAZARDOUS WASTE GENERATOR 5 5 340
31 DOE 13 YCOM NETWORKS PLANT OPS 105 2ND ST, YELM, WA 98597 EMERGENCY/HAZ CHEM RPT TIER2, HAZWASTE 5 5 668
32 EDR 48 MICHAEL J MCCASLIN 107 S 1ST ST, YELM, WA 98597 UST, ALL SITES, FINDS 5 5 894
33 EDR 51 GORDERS AUTO REBUILD 103 1ST ST N, YELM, WA 98597 RCRA, FINDS, UST, ALL SITES, HAZARDOUS WASTE
GENERATOR 5 5 919
34 EDR 55 YELM EXTENSION SCHOOL 107 FIRST ST NORTH, YELM, WA 98597 FINDS 5 5 925
35 EDR 40 FRONTIER VILLAGE PROF DRYCLEAN 404 1ST ST SE & MOSMAN, YELM, WA 98597 RCRA, ALL SITES, FINDS, HAZARDOUS WASTE
GENERATOR, INACTIVE DRYCLEANER 5 5 1,011
36 EDR 37 MOUNT RAINIER CLINIC INC 503 1ST ST S, YELM, WA 98597 ALL SITES, FINDS, EMERGENCY/HAZ CHEM RPT TIER2 5 5 1,057
37 EDR 59 YELM EXTENSION SCHOOL 203 N FIRST ST, YELM, WA 98597 FINDS 5 5 1,111
38 EDR 67 HARTS LAKE ASSOCIATES 402 NW RAILROAD, YELM, WA 98597 UST, ALL SITES, FINDS 5 5 1,732
39 EDR 6 MILL POND INTERMEDIATE SCHOOL 909 MILL RD SE, YELM, WA 98597 FINDS 5 5 1,874
40 EDR 60 YELM MIDDLE SCHOOL 402 YELM AVE. W, YELM, WA 98597 FINDS 5 5 1,895
41 EDR 64 LACKAMAS ELEMENTARY 16240 BALD HILL RD, YELM, WA 98597 FINDS 5 5 1,904
42 EDR 91 SAMANTHA RIDGE 502 CRYSTAL SPRINGS ST, YELM, WA 98597 ALL SITES, CONSTRUCTION SW GP 5 5 2,410
43 DOE 32 HERTERS INC MAIN ST , YELM, WA 98597 RCRA, HAZARDOUS WASTE GENERATOR 5 5 2,463
44 EDR 92 LASCO BATHWARE 801 NORTHERN PACIFIC, YELM, WA 98597 RCRA, ALL SITES, TRIS, FINDS, MANIFEST, AIRS,
FINANCIAL ASSURANCE, UST 5 5 2,703
45 EDR 94 CENEX HARVEST STATES YELM 509 RHOTON RD, YELM, WA 98597 ALL SITES, FINDS, EMERGENCY/HAZ CHEM RPT TIER2 5 5 2,742
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REPORT TABLES 1 - 7.xlsx 3 of 5 City of Yelm/WHPP/WA
I II III (ft)
Decision
Rank #Ref #Name
TABLE 7
CONTAMINANT SOURCE INVENTORY AND RISK PRIORITY RANKING
Address List Source Type
46 EDR 98 PENSKE TRUCK LEASING CO LP 801 NORTHERN PACIFIC RD BLDG 2, YELM, WA 98597 RCRA, ALL SITES, FINDS, MANIFEST, HAZARDOUS
WASTE GENERATOR 5 5 2,786
47 EDR 112 NORTHWEST DELI MART 46 608 YELM HWY, YELM, WA 98597 FINDS, UST, EMERGENCY/HAZ CHEM RPT TIER2 5 5 2,899
48 EDR 125 CENTRAL REDDIMIX INC 705 RHOTON RD, YELM, WA 98597 FINDS 5 5 3,374
49 EDR 126 GLACIER NORTHWEST 705 NORTHWEST RHOTON ROAD, YELM, WA ALL SITES, SPILLS, NPDES, UST, FINDS, TRIS 5 5 3,374
50 FRS 41 YELM COMMUNITY SCHOOLS TRANS DEPT 401 COATS ST NW, YELM, WA 98597 RCRA, UST, HAZARDOUS WASTE GENERATOR 5 5 3,663
51 EDR 81 JOHNS MEADOWS 16440 MIDDLE RD SE, YELM, WA ALL SITES, CONSTRUCTION SW GP 5 5 3,734
52 EDR 80 FORT STEVENS ELEMENTARY 16525 100TH WAY SE, YELM, WA 98597 FINDS 5 5 4,137
53 EDR 159 HOFFMAN PLAT 9405 CULLENS ROAD, YELM, WA 98597 FINDS, ALL SITES, CONSTRUCTION SW GP 5 5 4,572
54 EDR 164 CULLENS ROAD PLAT 9329 CULLENS RD, YELM, WA 98597 ALL SITES, NPDES, FINDS, MUNICIPAL IP 5 5 4,842
55 EDR 148 T AUTOMOTIVE SERVICE 16713 CANAL RD SE, YELM, WA 98597 RCRA-NONGEN, ALL SITES, FINDS, HAZARDOUS WASTE
GENERATOR 5 5 5,456
56 EDR 170 YELM WWTP AND WATER RECLAMATION FACILITY 931 NORTHERN PACIFIC ROAD, YELM, WA 98597 ALL SITES, FINDS 5 5 5,706
57 EDR 1 CITY OF YELM 105 W YELM AVE, YELM, WA 98597 ALL SITES, NON ENFORCEMENT FINAL 5 5 5,828
58 EDR 3 YELM PRAIRIE ELEMENTARY 16535 110TH AVE. SE, YELM, WA 98597 FINDS 5 5 6,011
59 EDR 166 YELM DRUG CHEMICAL DU NW COR OF FLUME RD & BRIDGE RD, YELM, WA 98597 RCRA-NONGEN, ALL SITES, FINDS, HAZARDOUS WASTE
GENERATOR 5 5 6,974
60 DOE 26 WAL MART SUPERCENTER 3705 17100 SR 507 SE , YELM, WA 98597
HAZ WASTE MANAGEMENT ACTIVITY, HAZARDOUS
WASTE GENERATOR, RCRA, FINDS, ALL SITES, SPILLS,
MANIFEST
5 5 7,721
61 EDR 145 YELM MAINTENANCE SITE 17526 HWY 507 SE, YELM, WA 98597 UST, ALL SITES, FINDS 5 5 9,696
62 EDR 122 BNH AUTO WRECKING 17505 110TH AVE SE, YELM, WA 98597 RCRA, FINDS, ALL SITES, HAZARDOUS WASTE
GENERATOR 5 5 10,291
63 DOE 17 WE & B LIMITED 15708 123RD AVE , YELM, WA 98597 SWF/LF, RCRA, FINDS, ALL SITES, SPILLS, MANIFEST,
RECYCLING 5 5 10,466
64 EDR 132 VAIL RD DRUG LAB 11515 VAIL RD SE, YELM, WA 98597 RCRA-NONGEN, ALL SITES, FINDS, HAZARDOUS WASTE
GENERATOR 5 5 11,770
65 EDR 183 NISQUALLY VALLEY CARE CENTER 9414 357TH ST S, MCKENNA, WA 98558 FINDS, ALL SITES, NPDES, MUNICIPAL IP 5 5 11,790
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REPORT TABLES 1 - 7.xlsx 4 of 5 City of Yelm/WHPP/WA
I II III (ft)
Decision
Rank #Ref #Name
TABLE 7
CONTAMINANT SOURCE INVENTORY AND RISK PRIORITY RANKING
Address List Source Type
66 EDR 139 FOUR CORNER GROCERY 11500 BALD HILLS RD, YELM, WA 98597 FINANCIAL ASSURANCE, UST, ALL SITES, FINDS,
ENFORCEMENT FINAL 5 5 11,891
67 EDR 199 WEST AIR AVIATION 18324 COOK RD 6, YELM, WA 98597 RCRA, ALL SITES, FINDS 5 5 14,719
68 DOE 52 CENTURYTEL ROYAL CITY 101 CATALPA AVE NE, ROYAL CITY, WA 99357 EMERGENCY/HAZ CHEM RPT TIER2 5 5 15,526
69 FRS 32 WA DOT YELM SR 507 MP 29.6 NORTHSIDE, YELM, WA 98597 HAZWASTE, EMERGENCY/HAZ CHEM RPT TIER2 5 5 17,036
70 FRS 8 DESCHUTES DRUG LAB VAIL RD & DESCHUTES T16N R2E S, YELM, WA 98597 RCRA 5 5 17,530
71 FRS 44 YELM GARAGE 112 SE YELM AVE, YELM, WA 98597 UST 5 6 882
72 EDR 57 NISQUALLY VALLEY GOLF COURSE MOSSMAN & EDWARDS, YELM, WA 98597 UST, ALL SITES 5 6 1,524
73 EDR 65 SAFEWAY FUEL CENTER YELM AVE 1109 A YELM AVE E, YELM, WA 98597 UST, ALL SITES 5 6 1,947
74 EDR 114 PARKS PLACE 608 W YELM AVE, YELM, WA 98597 FINANCIAL ASSURANCE 5 6 2,899
75 DOE 37 CENTRALIA CITY LIGHT YELM HYDRO 14024 YELM HWY SE , YELM, WA 98597 UST, ENFORCEMENT FINAL 5 6 3,622
76 DOE 41 VALLEY TRADING POST VALLEY GROCERY 15547 VAIL RD SE , YELM, WA 98597 UST 5 6 11,624
77 DOE 58 WALTS PLACE STORE POST OFFICE HWY 500 FT S, MCKENNA, WA UST 5 6 12,418
78 DOE 27 DYLANS CORNER 15201 VAIL RD , YELM, WA 98597 UST 5 6 13,143
79 EDR 118 CREAMERY TRANSPORT CO INC 17025 HANNUS RD SE, YELM, WA 98597 UST, ALL SITES 5 6 13,641
80 EDR 44 NA 222 YELM AVENUE EAST, YELM, WA SPILLS 5 7 632
81 EDR 36 NA 118 MOSSMAN AVENUE SOUTHEAST, YELM, WA SPILLS 5 7 872
82 EDR 61 AMTEK 406 RAILROAD STREET, YELM, WA SPILLS 5 7 1,724
83 EDR 90 NA 16145 RAILWAY RD, YELM, WA SPILLS 5 7 2,640
84 EDR 109 CHIROPRACTIC OFFICE 604 YELM HWY SE, SUITE A, YELM, WA SPILLS 5 7 2,881
85 EDR 116 WESTSTAR INC 608 YELM AVENUE, YELM, WA ALL SITES, SPILLS 5 7 2,899
86 EDR 46 PUGET SOUND ENERGY 15235 105TH AVENUE SOUTHEAST, YELM,WA SPILLS 5 7 3,608
87 EDR 2 UNKNOWN 10826 VANCIL ROAD, YELM, WA SPILLS 5 7 3,840
88 EDR 143 NA 909 YELM AVENUE WEST, YELM, WA SPILLS 5 7 4,215
89 EDR 56 UNKNOWN 10405 GROVE ROAD SE, YELM, YELM, WA SPILLS 5 7 5,435
90 EDR 147 NA 16747 CANAL ROAD SE, YELM, WA SPILLS 5 7 5,478
91 EDR 178 PREVIOUS OWNER 119 VIEW DRIVE NORTHWEST, YELM, YELM, WA SPILLS 5 7 5,815
92 EDR 47 NA 10535 GROVE ROAD, YELM, WA SPILLS 5 7 6,014
93 EDR 174 NA 9543 BRIDGE ROAD SOUTHEAST, YELM, WA SPILLS, CDL 5 7 7,332
94 EDR 169 GERBER & SONS 9801 BRIDGE RD SE, YELM, WA SPILLS 5 7 7,706
95 EDR 188 RESIDENCE 9132 BRIDGE RD, YELM, WA SPILLS 5 7 7,808
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REPORT TABLES 1 - 7.xlsx 5 of 5 City of Yelm/WHPP/WA
I II III (ft)
Decision
Rank #Ref #Name
TABLE 7
CONTAMINANT SOURCE INVENTORY AND RISK PRIORITY RANKING
Address List Source Type
96 EDR 195 NA 9110 PEPPERIDGE LANE SOUTHEAST, YELM, WA SPILLS, CDL 5 7 7,810
97 EDR 89 UNKNOWN 11610 HOBIE STREET SOUTHEAST, YELM, WA SPILLS 5 7 8,221
98 EDR 87 NA 17246 110 TH AVENUE SOUTH EAST, YELM, WA SPILLS 5 7 9,329
99 EDR 20 UNKNOWN 15011 119TH WAY SE YELM., YELM, WA SPILLS 5 7 9,721
100 EDR 162 NA HWY 507/ VAIL RD SE, YELM, WA SPILLS 5 7 10,792
101 EDR 19 NA 15836 123 AVENUE, YELM, WA SPILLS 5 7 11,066
102 EDR 158 NA 110TH AND VAIL ROAD SOUTHEAST, YELM, WA SPILLS 5 7 11,428
103 EDR 39 NA 15218 123RD AVENUE SOUTHEAST, YELM, WA SPILLS 5 7 11,504
104 EDR 124 NA 11647 VAIL ROAD SOUTHEAST, YELM, WA SPILLS 5 7 12,113
105 EDR 45 PUGET SOUND ENERGY 12520 MORRIS ROAD SE, YELM, WA SPILLS 5 7 12,304
106 EDR 190 UNKNOWN 35807 94TH AVENUE SOUTH, MCKENNA, WA.SPILLS 5 7 12,558
107 EDR 177 NA 11234 AERO LANE SE, YELM, WA SPILLS 5 7 13,182
108 EDR 138 NA 14945 129TH LANE SE, YELM, WA SPILLS 5 7 14,012
109 EDR 196 NA 12635 WAGON WHEEL ROAD SOUTHEAST, YELM, WA SPILLS 5 7 14,140
110 EDR 197 NA 13103 ZELLER ROAD SE, RAINIER, WA SPILLS 5 7 16,150
111 EDR 62 YELM SD 2 404 YELM AVE W, YELM, WA 98597 FTTS 5 8 1,901
112 EDR 187 15913 SE 90TH AVE 15913 SE 90TH AVE, ROCHESTER, WA SPILLS, CDL 5 9 6,327
113 EDR 97 NA 11822 HOBBY ST SE, YELM, WA 98597 CDL 5 9 9,292
114 EDR 161 NA 12220 HILLCREST, YELM, WA 0 CDL 5 9 11,346
115 EDR 88 TODAY'S DENTAL 502 WEST YELM AVENUE, YELM, WA 98597 UIC 5 10 2,446
116 EDR 117 TAHOMA TERRA INFILTRATION GALLERIES 14848 LONGMIRE ST SE, YELM, WA 98579 UIC 5 10 3,063
117 EDR 111 YELM AREA RELIABILITY 16302 RAILWAY RD SE, YELM, WA 98597 ALL SITES, NPDES 5 10 3,461
118 EDR 173 YELM HIGH SCHOOL 12 1315 YELM AVE. W, YELM, WA 98597 FINDS 6 5 4,900
119 EDR 179 YELM COMMUNITY SCHOOLS 14901 YELM HWY SE, YELM, WA 98597 RCRA, ALL SITES, FINDS, HAZARDOUS WASTE
GENERATOR 6 5 4,910
120 EDR 172 NA 14504-C SE BERRY VALLEY RD, YELM, WA CDL 6 9 2,579
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Figures
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SW Well 1A
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FIGURE 1WELL LOCATIONYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), Washington DOE (Counties), City of Yelm (City Limits, Urban Growth Area), NHD (Creek),USGS (Topo map), Golder Associates, Inc.(Wells)
0 4,000
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F01_Well_Locations.mxd
!A!A!ASW Well 1A
Well 1A and 2
Pierce
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!A Well
Yelm City Limits
Yelm Urban Growth Area
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!A Well 2Well 1A
SW Well 1A
FIGURE 2WELLHEAD PROTECTIONAREASYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Wellhead Capture Zone)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F02_Wellhead_Protection_Areas.mxd
!A Well
Yelm City Limits
Yelm Urban Growth Area
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FIGURE 3LAND USEYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), City of Yelm (City Limits, UrbanGrowth Area), Thurston County and WA DOE(Land Use), Golder Associates, Inc.(Wells, Wellhead Capture Zone)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F03_Zoning.mxd
!A Well
Yelm CityLimitsYelm UrbanGrowth Area
Wellhead Capture Zone6 month
1 year
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Lat 46.923538 Lon -122.604243
FIGURE 4DECISION LEVEL I HAZARD AREAS AND FACILITIESYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Decision Level 1 Areas, 2.5 mile Boundary and Center)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F04_Decision_Level_1 w Haz Rank.mxd
!A Well
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FIGURE 5DECISION LEVEL I (PRIORITIZATION 1 AND 2)WITH DECISION LEVELII SUB-PRIORITIZATIONYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Decision Level 1 Areas,Facilities)
0 1,700
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F05_Decision_Level_1_Haz1_and2.mxd
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FIGURE 6RECOMMENDEDMONITORING WELLLOCATIONSYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 FeetSource:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Decision Level 1 Areas,Facilities)
0 1,700
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719F06_RecommendedMonitoringWells.mxd
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2, 10!(4 (10 year)
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hÐ RecommendedMonitoring Well Locations
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Appendix A
City Production Wells – Well
Reports and Borehole Logs
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DRAFT
ECY 050-1-20 (Rev 02/10) If you need this document in an alternate format, please call the Water Resources Program at 360-407-6872.
Persons with hearing loss can call 711 for Washington Relay Service. Persons with a speech disability can call 877-833-6341.
WATER WELL REPORT Original & 1st copy – Ecology, 2nd copy – owner, 3rd copy – driller
Construction/Decommission (“x” in circle)
Construction
Decommission ORIGINAL INSTALLATION
Notice of Intent Number WE11324
PROPOSED USE: Domestic Industrial Municipal
DeWater Irrigation Test Well Other
TYPE OF WORK: Owner’s number of well (if more than one)
New well Reconditioned Method : Dug Bored Driven
Deepened Cable Rotary Jetted
DIMENSIONS: Diameter of well 12" inches, drilled800 ft.
Depth of completed well 633ft.
CONSTRUCTION DETAILS
Casing Welded 12” Diam. from +2 ft. to 367.5 ft.
Installed: Liner installed ” Diam. from ft. to ft.
Threaded ” Diam. From ft. to ft.
Perforations: Yes No
Type of perforator used
SIZE of perfs in. by in. and no. of perfs from ft. to ft.
Screens: Yes No K-Pac Location
Manufacturer’s Name Johnson Screen
Type Wire-wrapped Model No.
Diam. 8"Slot size 0.035 from 352 ft. to 357 ft.
Diam. 8"Slot size 0.035 from 369 ft. to 437 ft.
Gravel/Filter packed: Yes No Size of gravel/sand 10x20
Materials placed from 353 ft. to 633 ft.
Surface Seal: Yes No To what depth? 327.7ft.
Material used in seal Neat cement
Did any strata contain unusable water? Yes No
Type of water? Depth of strata
Method of sealing strata off
PUMP: Manufacturer’s Name Goulds
Type: Lineshaft turbine H.P.
WATER LEVELS: Land-surface elevation above mean sea level ft.
Static level 102.5ft. below top of well Date 10/6/10
Artesian pressure N/A lbs. per square inch Date
Artesian water is controlled by (cap, valve, etc.)
WELL TESTS: Drawdown is amount water level is lowered below static level
Was a pump test made? Yes No If yes, by whom? Boart Longyear
Yield: 2100gal./min. with 82.2ft. drawdown after 73hrs.
Yield: gal./min. with ft. drawdown after hrs.
Yield: gal./min. with ft. drawdown after hrs.
Recovery data (time taken as zero when pump turned off) (water level measured from well top to water level)
Time Water Level Time Water Level Time Water Level
Date of test
Bailer test gal./min. with ft. drawdown after hrs.
Airtest gal./min. with stem set at ft. for hrs.
Artesian flow g.p.m. Date
Temperature of water 54 Was a chemical analysis made? Yes No
CURRENT
Notice of Intent No. WE11324
Unique Ecology Well ID Tag No. ALM113
Water Right Permit No. Application G2-29804, G2-29805 and G2-29806
Property Owner Name City of Yelm
Well Street Address Tahoma Blvd SE & Dotson St. SE
City Yelm County Thurston
Location SE1/4-1/4 SE1/4 Sec 23 Twn 17 R 1E EWM
(s, t, r Still REQUIRED) Or
WWM
Lat/Long Lat Deg Lat Min/Sec
Long Deg Long Min/Sec
Tax Parcel No. (Required)78640000024
WELL CONSTRUCTION CERTIFICATION: I constructed and/or accept responsibility for construction of this well, and its compliance with all Washington well
construction standards. Materials used and the information reported above are true to my best knowledge and belief.
Driller Engineer Trainee Name (Print ) Duane Stevenson
Driller/Engineer/Trainee Signature
Driller or trainee License No. 2795
IF TRAINEE: Driller’s License No:
Driller’s Signature:
Drilling Company Boart Longyear
Address 11277 SW Clay St, Suite A
City, State, Zip Sherwood, OR 97140 , ,
Contractor’s
Registration No. Date
CONSTRUCTION OR DECOMMISSION PROCEDURE
Formation: Describe by color, character, size of material and structure, and the kind and
nature of the material in each stratum penetrated, with at least one entry for each change
of information. (USE ADDITIONAL SHEETS IF NECESSARY.)
MATERIAL FROM TO
Fine sand w/ some silt 0 25
Med/fine sand, gravel, cobble 25 170
Med/fine sand with grave/silt 170 219
Silty with fine sand and wood 219 240
Silty sand/iron oxide stainin 240 300
Silty sand with wood 300 370
Silty sand 370 400
Silt and clay 400 453
Fine sand and silt 453 470
Silt and clay, some wood 470 485
Silty fine sand 485 525
Med to coarse sand 525 552
Silt with fine sand 552 610
Fine to med sand/gravel 610 630
Silt/clay with wood 630 665
Fine to coarse sand/gravel 665 675
Silt/clay 675 800
Start Date 4/27/10 Completed Date 10/8/10
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Appendix B
Geologic Cross-Sections
DR
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DR
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DRAFT
DRAFT
DRAFT
DRAFT
DRAFT
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mw2mw1
s12
s11
p20
p19
P18
p17
p16
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tcgagebridgegage
Weather Stn
TC at HWY 510
Thomp. Crk MW
TC at 93rd Ave SE
23859
22526
2981627503
23920 30639
2340521766
25174
29759
27742
25549
26175
251652402725398
3055323966
29400
361840
273132
504110
457396
250249
415688
10399709 SWWell1ACross-SectionsWellLocations.mxd | 1/17/2011 | KJANSSEN
FIGURE A-1
GEOLOGIC CROSS-SECTION
AND WELL LOCATIONSCITY OF YELM SW WELL 1A DEVELOPMENT PROJECT
LEGEND This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:UTM NAD27, Zone 10 North
Source:Washington State Geospatial Data Archive;Washington Department of Ecology
Scale in Feet
0 2000
#Weather Station
Streams
!?Ecology Well Logs
@?Monitoring Wells
!.Piezometers
+U Staff Gagues
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Thomp. Crk MW
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Scale in Feet
0 750
@A
SW Well 1A
SW Well 1A@A
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FIGURE 2GEOLOGIC CROSS-SECTION A-AACITY OF YELM SW WELL 1A DEVELOPMENT PROJECT
10399709fig02.ai | Mod: 01/17/11 | LMB
Note: See Figure A-1 in Appendix A for cross section location.
LEGEND
Recessional Outwash (Qvr) - Sand and gravel, locally including low-permeability moraine deposits (Qvrm) of unsorted and unlayered rock debris known as till; groundwater is mostly unconfined, but perched water conditions occur in areas of Qvrm deposits.
Till (Qvt) - Unsorted and unlayered deposits of sand, gravel, cobbles, and boulders in a compacted and indurated matrix of silt and clay with some lenses of clean sand and gravel; confining unit.
Advanced Outwash (Qva) - Gravel in a matrix of sand with some sand lenses; groundwater is confined.
Kitsap Formation (Qf) - Predominately clay and silt, with some layers of sand and gravel, and may include some till or till-like deposits; confining unit.
Salmon Springs (?) Drift (Qc) - Pre-Vashon glacial deposits of sand and gravel typically stained red or brown; groundwater is confined.
(TQu) - Layers of clay, silt, sand and gravel of glacial and nonglacial origin.
Water Level
Screened Interval
Thurston Highlands Yelm Prairie
-1,00001,0002,0003,0004,0005,0006,0007,0008,0009,00010,00011,00012,00013,00014,00015,000
500
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Distance (ft)
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Total Depth - 633 ft
Qvr
Qvt
Qva
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TQu
Qvr
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Qva
Qf
Qc
TQuDR
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10399709fig03.ai | Mod: 03/14/11 | LMB
Note: See Figure A-1 in Appendix A for cross section location. FIGURE 3GEOLOGICCROSS-SECTION B-BBCITY OF YELM SW WELL 1A DEVELOPMENT PROJECT
El
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400
300
200
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Distance (ft)
600
-1,000 1,0002,0003,0004,0005,0006,0007,0008,0000 9,00010,00011,00012,00013,00014,00015,00016,00017,000
Qvr
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LEGEND
Recessional Outwash (Qvr) - Sand and gravel, locally including low-permeability moraine deposits (Qvrm) of unsorted and unlayered rock debris known as till; groundwater is mostly unconfined, but perched water conditions occur in areas of Qvrm deposits.
Till (Qvt) - Unsorted and unlayered deposits of sand, gravel, cobbles, and boulders in a compacted and indurated matrix of silt and clay with some lenses of clean sand and gravel; confining unit.
Advanced Outwash (Qva) - Gravel in a matrix of sand with some sand lenses; groundwater is confined.
Kitsap Formation (Qf) - Predominately clay and silt, with some layers of sand and gravel, and may include some till or till-like deposits; confining unit.
Salmon Springs (?) Drift (Qc) - Pre-Vashon glacial deposits of sand and gravel typically stained red or brown; groundwater is confined.
Water Level
Screened Interval
B7
B1
(
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DR
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Appendix C
Yelm 2012 WHPA Model
Technical Memorandum
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TECHNICAL MEMORANDUM
whpp modeling tech memo.docx
Golder Associates Inc.
9 Monroe Parkway, Suite 270 Lake Oswego, OR Tel: 503-607-1820 Fax: 503-607-1825 www.golder.com
Golder Associates: Operations in Africa, Asia, Australasia, Europe, North America and South America
Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation
1.0 WHPA MODELING APPROACH
The most up-to-date version of the McAllister Groundwater Model, which encompasses a broad area of
Thurston County and used to support the City’s water right applications and mitigation program; herein
referred to as the “existing model” was modified in order to delineate updated Wellhead Protection Areas
(WHPA) for the City’s drinking water supply wells. Details of the existing model construction and
calibration are provided by CDM (2002a and 2002b), Golder (2008a and 2008b), and City of Yelm (2011).
The wellhead protection areas were delineated for the following wells:
Water supply well SW Well 1A (recently drilled); and
The City’s downtown wells, Well 1A and Well 2.
The existing model used for the delineations is a steady-state model built in Groundwater Vistas (GWV)
6.11 (ESI, 2011). The existing steady-state model modified for the WHPA delineations was originally
named “base_30a”. The steps involved in adapting and modifying the base model (base_30a) into the
new WHPA model are explained in the sections below, and is hereafter referred to as the Yelm 2012
WHPA Model, or the “revised model”. Note that for the purpose of this analysis, model simulations were
run only under steady-state conditions.
1.1 Refinements To Existing Model
In order to improve model resolution and more accurately define the WHPA capture zones, the model grid
spacing was adjusted in the vicinity of the City’s three drinking water supply wells. The size of the cells
was refined from 250 feet by 250 feet to approximately 35 feet by 35 feet for an area about 500 feet wide
centered around each well location (note that Wells 1A and 2 are located in close proximity,
approximately 65 feet apart). The entire model grid was then smoothed using an automated grid
smoothing routine incorporated into GWV. A maximum grid change ratio of 1.5 was used in order to
gradually adjust the size of the grid cells away from the cells containing the wells. The revised model grid
is shown on Figure TM-1.
Date: January 19, 2012 Project No.: 113-99719
To: Stephanie Ray, Project Manager; City of
Yelm, WA
From: Michael Klisch, LHG, and Emanuele Pellichero; Golder Associates Inc.
RE: CITY OF YELM WHPA MODELING RESULTS
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1.1.1 Changes in Model Boundaries and Mass Balance
Because the grid refinements will cause changes in the conductance of boundary conditions such as
drains, rivers, or constant heads, the revised model boundary conductances were checked for
consistency against the existing model. Where cells were split during grid refinement, the sum of the
conductances of the split cells were equivalent to the conductances of the original cells in the existing
model.
The model was then run to evaluate the mass balance differences between the existing and revised
model. For this comparison, SW Well 1A, which was not included in the existing base model, was
switched off.
The mass balance components for the two models and the net-flow comparison are summarized in Table
TM-1. The net-flow comparison in Table TM-1 shows that there are negligible differences (< 2.1%) in
mass balance between the two models. The primary reason for the differences in mass balance is
because a different set of starting heads were used for each model. The existing model starting heads
could not be used in the revised model because of a different number of grid cells resulting from the
refinement of the grid around the three Yelm wells. Therefore, the starting heads in the revised model
were set to the top of layer 1.
1.1.2 Changes in Groundwater Heads and Flow Direction
The model-predicted groundwater heads and groundwater flow directions from the revised model were
visually compared to the heads and groundwater flow directions in the existing model. No significant
changes in groundwater elevations and flow directions were observed. In addition, modeled groundwater
heads were compared between the two models at 11 target locations used in the existing model for
calibration. Results are summarized in Table TM-2. Differences in hydraulic heads at all target locations
are relatively small (< 1.3%), always falling below 0.4 ft. Also in this case, no significant changes in
groundwater elevations were depicted. The interpreted groundwater contours from the model-predicted
hydraulic heads for the Qva and TQu are shown in Figures TM-2 and TM-3, respectively.
1.2 Model Updates
New City water supply well SW Well 1A was completed in October 2010 (Golder, 2011). SW Well 1A is
located in the Tahoma Terra area west of downtown Yelm in Thurston County, Washington. The well is
located in SE¼, SE¼, Section 23, T17N, R1E W.M. (1,106,790 ft northing and 593,521 ft easting,
Washington State Plane South). The pumping rate for SW Well 1A was set to 942 acre-feet per year
(112,421 ft3/d, or an annual average pumping rate of 584 gallons per minute; gpm) based on the annual
water right quantity. As the well screen is located both in model layers 8 and 9, GWV split its pumping
rate between these two layers proportional to the thickness of each layer as:
Layer 8 – 51,990.5 ft3/d
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Layer 9 – 60,430.2 ft3/d
The pumping rate was revised for Wells 1A and 2 based on their annual water right quantities. The new
pumping rate was set to a combined rate of 894.92 acre-feet per year (106,802 ft3/d, or an annual
average pumping rate of 555 gpm) for the two wells, or a pumping rate of 53,401.3 ft3/d (277.5 gpm) for
each well.
1.3 Capture Zone Analysis Approach
Capture zones for the three City wells were delineated using the particle tracking software MODPATH
(Pollock, 1994) in GWV 6.11 (ESI, 2011). MODPATH uses a particle tracking scheme that allows an
analytical expression of the particle’s flow to be obtained within each grid cell. Particle paths are
computed by tracking from one cell to the next until the particles reaches a boundary, an internal
sink/source, or satisfies some other termination criterion (Pollock, 1994). In order to define groundwater
flow paths in proximity of the City’s wells, a total of 150 particles were placed in the revised model in
concentric circles around SW Well 1A, and Wells 1A and 2. For SW Well 1A, as the well is screened in
two layers, 50 particles were placed both in layer 8 and layer 9. For Wells 1A and 2, as they fall in
neighboring cells and both wells are screened only in layer 3, only one circle of 50 particles was placed
around both wells in layer 3.
The MODPATH simulation was run for 10,000 days. Reverse particle tracking was used to delineate the
capture zones for each well. Time-of-travel markers were placed along the particle paths indicating the
six-month, and one-, five-, and ten- time-of-travel zones defining the WHPAs.
2.0 YELM 2012 WHPA DELINEATION RESULTS
The results of the analysis to delineate the WHAP capture zones are shown in Figure TM-4. This figure
indicates that:
The particle pathlines are generally consistent with the groundwater flow direction;
The particles’ velocity changes in relationship with the magnitude of the hydraulic conductivity and the hydraulic gradient present along the particle paths in the revised
model;
The presence of wells or boundary conditions can influence groundwater flow and
consequently disrupt particles pathlines; and
Upward or downward vertical flow is occasionally seen in the revised model, particularly
with regard to Wells 1A and 2. Vertical flow causes a noticeable decrease in the particles’ velocity. The vertical hydraulic conductivities (Ky) defined in all layers are lower than the
corresponding horizontal hydraulic conductivities (Kh), particularly in lower permeability layers such as, layer 2, 4 and 7, where Ky values range between 2.5 x 10-3 ft/d and 5 x
10-3 ft/d.
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2.1 SW Well 1A – TQu Aquifer
As mentioned in Section 1.2, SW Well 1A is screened both in layer 8 and layer 9. For this reason, two
different capture zones were delineated for this well in each layer. As hydraulic properties for layers 8 and
9 are very homogenous in the Yelm area and no other wells or boundary conditions are present in the
vicinity of SW Well 1A, the two capture zones delineated in MODPATH present a very regular shape and
do not display any apparent sign of flow disruption. Moreover, with the hydraulic properties being identical
in layers 8 and 9, the shape of the two capture zones tend to coincide. However, the capture zone in
layer 9 appears slightly more elongated than in layer 8. This is the result of particles travelling faster in
layer 9 as the pumping rate for SW Well 1A is slightly higher than in layer 8, as explained in Section 1.2.
No evidence of vertical flow was observed in the capture zones delineated for SW Well 1A.
2.2 Downtown Wells 1A and 2 – Qva Aquifer
The capture zones delineated in layer 3 for Wells 1A and 2 are irregularly shaped and noticeably different
than the capture zone for SW Well 1A. In particular, there is a bend in the mid part of the five-year capture
zone for Wells 1A and 2, which results from a combination of factors, including the presence of several
wells located along the particle paths in layer 3, the close proximity of drain boundaries to the capture
zone, and a significant decrease in hydraulic conductivity (from 640 ft/d to 70 ft/d) present along the
particle pathlines at distance.
The shape of the capture zone for Wells 1A and 2 is more elongated than for the capture zones
delineated for SW Well 1A. This is due to the combination of a higher hydraulic gradient present in layer
3, particularly in the southern part of the Yelm area close to the constant head (CH) boundaries, and the
presence of a very high hydraulic conductivity area defined in layer 3 (640 ft/d) around Yelm. The
downtown wells’ capture zone is also wider than the SW Well 1A capture zone, which reflects the fact that
in the Yelm area the thickness of layer 3 (about 40 ft) is considerably less than the thickness of layers 8
and 9, respectively approximately 185 ft and 200 ft. Vertical flow from layer 4 to layer 3 is apparent in
close proximity of the downtown wells (west side of capture zone). Sporadic vertical flow from a stream
boundary in layer 1 downwards to layer 3 is also apparent in the south-western part of the downtown
wells capture zone where particles travel west-east for a short distance.
3.0 REFERENCES
City of Yelm, 2011, Water Right Mitigation Plan, Mitigation for City of Yelm Water Right Application: G2-29085 – Priority Date January 10, 1994. Prepared February 2011.
CDM, 2002a. Model Construction and Steady-state Calibration - McAllister Wellfield Numerical Model. Prepared for Yelm of Olympia Public Works Dept. April 2002.
CDM, 2002b. Final Report – McAllister Wellfield Numerical Model. Prepared for Yelm of Olympia Public Works Dept. July 2002.
Environmental Simulations Inc, 2011, Groundwater Vistas, version 6.14, build 2.
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whpp modeling tech memo.docx
Golder Associates, Inc, 2008a. Groundwater Modeling of Water Right Applications and Transfers.
Prepared for Yelm of Yelm. January 29, 2008.
Golder Associates, Inc, 2008b. Future Demand/Supply Forecast and Groundwater Modeling for Mitigation
Planning. October 10, 2008.
Golder Associates, Inc, 2011, The City of Yelm Southwest Well 1A Development Report; Drilling, Well
Construction and Testing. Prepared March 15, 2011.
Pollock, D.W, 1994, User’s guide for MODPATH/MODPATH-PLOT, Version 3: A particle tracking post-
processing package for MODFLOW, the U.S. Geological Survey finite-difference ground-water flow model. U.S. Geological Survey Open-File Report 94-464. September 1994.
List of Tables
Table TM-1 Mass Balance for the Existing and Revised Models and Net Flux Comparison
Table TM-2 Hydraulic Head Comparison between Existing and Revised Models
List of Figures
Figure TM-1 Revised Model Grid
Figure TM-2 Interpreted Groundwater Contours for the Qva Figure TM-3 Interpreted Groundwater Contours for the TQu
Figure TM-4 Wellhead Protection Areas
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5/5/2012 113-99719
TM TABLES.xlsx City of Yelm/WHPP/WA
Flux IN
(ft3/day)
Flux OUT
(ft3/day)
Net Flux
(ft3/day)
Flux IN
(ft3/day)
Flux OUT
(ft3/day)
Net Flux
(ft3/day)(ft3/day)%
CH 11,415,160 10,142,214 1,272,947 12,254,091 10,968,764 1,285,327 -12,380 1.0
Well 0 1,779,391 -1,779,391 0 1,779,391 -1,779,391 0 0.0
Riv 4,144,095 4,933 4,139,162 4,058,093 4,235 4,053,858 85,304 2.1
Drn 0 4,023,003 -4,023,003 0 3,947,612 -3,947,612 -75,391 -1.9
GHB 0 0 0 0 0 0 0 0.0
Str 0 0 0 0 0 0 0 0.0
Rch 390,300 0 390,300 387,849 0 387,849 2,451 0.6
ET 0 0 0 0 0 0 0 0.0
Lake 0 0 0 0 0 0 0 0.0
Total 15,949,555 15,949,541 15 16,700,033 16,700,002 31 -16 1.8
% Error 0 ------0 ------------
NOTES:
Difference in Net Flux (Existing
minus Revised)
Boundary
(2)Revised Model (whpp_03)
TABLE TM-1
MASS BALANCE FOR THE EXISTING AND REVISED MODELS AND NET FLUX COMPARISON
(1)Existing Model (base_30a)
(1) Most up-to-date version of the McAllister Groundwater Model used to support the City of Yelm's water right applications and mitigation program (City of Yelm, 2011).
(2) Yelm 2012 WHPA Model
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TM TABLES.xlsx City of Yelm/WHPP/WA
X Y (2)Existing Model (base_30a)(3)Revised Model (whpp_03)(ft)%
TW-2 1078513 627081 5 30.3 29.9 0.4 1.3
TW-3 1081651 619218 5 31.9 31.6 0.3 0.9
MW-4 1088419 622867 5 15.3 15.3 0 0.0
MW-3 1090688 623230 5 15.3 15.2 0.1 0.7
MW-17 1093098 624466 5 18.2 18.3 -0.1 0.5
Lakeside 1093415 620077 5 26.2 26.5 -0.3 1.1
17N/01E-08L03 1088410 605088 5 104.5 104.2 0.3 0.3
16N/01E-05F01_(Rainier)1088244 580257 5 225.9 225.9 0 0.0
Shana_Well1 1057261 615406 3 115 114.6 0.4 0.3
Yelm_1 1118555 592668 3 250.5 250.3 0.2 0.1
SW_Yelm_1 1099413 590228 8 182.4 182.3 0.1 0.1
NOTES:
TABLE TM-2
HYDRAULIC HEAD COMPARISON BETWEEN EXISTING AND REVISED MODELS
Target Location
Difference in Hydraulic Heads
(Existing minus Revised)
(1) Washington State Plane South
(2) Most up-to-date version of the McAllister Groundwater Model used to support the City of Yelm's water right applications and mitigation program (City of Yelm, 2011).
(3) Yelm 2012 WHPA Model
(1)Model Coordinates (ft)Model
Layer No.
Hydraulic Heads (ft)
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FIGURE TM-1REVISED MODEL GRIDYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 Feet
Source:City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Revised Model Grid Cell)
0 3,000
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719FTM_1_Revised Model Grid.mxd
!A Well
Revised Model Grid CellYelm CityLimitsYelm UrbanGrowth Area
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!A Well 2
Well 1A
SW Well 1A
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260
300
220
240
320
200
340
180
360
160
380
140
400
FIGURE TM-2INTERPRETEDGROUNDWATERCONTOURS FOR THE QVAYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 Feet
Source:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Groundwater Contours)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719FTM_2_Interpreted Groundwater Contours Qva.mxd
Generalized Qva Groundwater Flow Direction
!A Well
Interpreted Groundwater Contour (Qva)Yelm CityLimitsYelm UrbanGrowth Area
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!A Well 2Well 1A
SW Well 1A
240
220
260
200
280
180
300
320
160
340
360
140
380
400
FIGURE TM-3INTERPRETEDGROUNDWATERCONTOURS FOR THE TQUYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 Feet
Source:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Groundwater Contours)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719FTM_3_Interpreted Groundwater Contours TQu.mxd
Legend is a graphic
!A Well
Interpreted Groundwater Contour (Qva)Yelm CityLimitsYelm UrbanGrowth Area
Generalized TQu Groundwater Flow Direction
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!A Well 2Well 1A
SW Well 1A
FIGURE TM-4WELLHEAD PROTECTIONAREASYELM WELL HEAD PROTECTION PLAN
LEGEND
DRAFT
This figure was originally produced in color. Reproduction in black and white may result in a loss of information.
Map Projection:NAD83 State Plane WA South FIPS 4602 Feet
Source:ESRI (Imagery), City of Yelm (City Limits, Urban Growth Area), Golder Associates, Inc.(Wells, Wellhead Capture Zone)
0 4,500
Scale in Feet
Path: S:\Projects\2011\2011 Water Group Projects\113-99719 Yelm WHPP\Task 4 - Wellhead Protection Plan\mxds\11399719FTM_4_Wellhead_Protection_Areas.mxd
!A Well
Wellhead Capture Zone6 month
1 year
5 year
10 year
Yelm City Limits
Yelm Urban Growth Area
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Appendix D
SW Well 1A Groundwater
Contamination Susceptibility
Assessment Form
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ECY 050-1-20 (Rev 02/10) If you need this document in an alternate format, please call the Water Resources Program at 360-407-6872.
Persons with hearing loss can call 711 for Washington Relay Service. Persons with a speech disability can call 877-833-6341.
WATER WELL REPORT Original & 1st copy – Ecology, 2nd copy – owner, 3rd copy – driller
Construction/Decommission (“x” in circle)
Construction
Decommission ORIGINAL INSTALLATION
Notice of Intent Number WE11324
PROPOSED USE: Domestic Industrial Municipal
DeWater Irrigation Test Well Other
TYPE OF WORK: Owner’s number of well (if more than one)
New well Reconditioned Method : Dug Bored Driven
Deepened Cable Rotary Jetted
DIMENSIONS: Diameter of well 12" inches, drilled800 ft.
Depth of completed well 633ft.
CONSTRUCTION DETAILS
Casing Welded 12” Diam. from +2 ft. to 367.5 ft.
Installed: Liner installed ” Diam. from ft. to ft.
Threaded ” Diam. From ft. to ft.
Perforations: Yes No
Type of perforator used
SIZE of perfs in. by in. and no. of perfs from ft. to ft.
Screens: Yes No K-Pac Location
Manufacturer’s Name Johnson Screen
Type Wire-wrapped Model No.
Diam. 8"Slot size 0.035 from 352 ft. to 357 ft.
Diam. 8"Slot size 0.035 from 369 ft. to 437 ft.
Gravel/Filter packed: Yes No Size of gravel/sand 10x20
Materials placed from 353 ft. to 633 ft.
Surface Seal: Yes No To what depth? 327.7ft.
Material used in seal Neat cement
Did any strata contain unusable water? Yes No
Type of water? Depth of strata
Method of sealing strata off
PUMP: Manufacturer’s Name Goulds
Type: Lineshaft turbine H.P.
WATER LEVELS: Land-surface elevation above mean sea level ft.
Static level 102.5ft. below top of well Date 10/6/10
Artesian pressure N/A lbs. per square inch Date
Artesian water is controlled by (cap, valve, etc.)
WELL TESTS: Drawdown is amount water level is lowered below static level
Was a pump test made? Yes No If yes, by whom? Boart Longyear
Yield: 2100gal./min. with 82.2ft. drawdown after 73hrs.
Yield: gal./min. with ft. drawdown after hrs.
Yield: gal./min. with ft. drawdown after hrs.
Recovery data (time taken as zero when pump turned off) (water level measured from well top to water level)
Time Water Level Time Water Level Time Water Level
Date of test
Bailer test gal./min. with ft. drawdown after hrs.
Airtest gal./min. with stem set at ft. for hrs.
Artesian flow g.p.m. Date
Temperature of water 54 Was a chemical analysis made? Yes No
CURRENT
Notice of Intent No. WE11324
Unique Ecology Well ID Tag No. ALM113
Water Right Permit No. Application G2-29804, G2-29805 and G2-29806
Property Owner Name City of Yelm
Well Street Address Tahoma Blvd SE & Dotson St. SE
City Yelm County Thurston
Location SE1/4-1/4 SE1/4 Sec 23 Twn 17 R 1E EWM
(s, t, r Still REQUIRED) Or
WWM
Lat/Long Lat Deg Lat Min/Sec
Long Deg Long Min/Sec
Tax Parcel No. (Required)78640000024
WELL CONSTRUCTION CERTIFICATION: I constructed and/or accept responsibility for construction of this well, and its compliance with all Washington well
construction standards. Materials used and the information reported above are true to my best knowledge and belief.
Driller Engineer Trainee Name (Print ) Duane Stevenson
Driller/Engineer/Trainee Signature
Driller or trainee License No. 2795
IF TRAINEE: Driller’s License No:
Driller’s Signature:
Drilling Company Boart Longyear
Address 11277 SW Clay St, Suite A
City, State, Zip Sherwood, OR 97140 , ,
Contractor’s
Registration No. Date
CONSTRUCTION OR DECOMMISSION PROCEDURE
Formation: Describe by color, character, size of material and structure, and the kind and
nature of the material in each stratum penetrated, with at least one entry for each change
of information. (USE ADDITIONAL SHEETS IF NECESSARY.)
MATERIAL FROM TO
Fine sand w/ some silt 0 25
Med/fine sand, gravel, cobble 25 170
Med/fine sand with grave/silt 170 219
Silty with fine sand and wood 219 240
Silty sand/iron oxide stainin 240 300
Silty sand with wood 300 370
Silty sand 370 400
Silt and clay 400 453
Fine sand and silt 453 470
Silt and clay, some wood 470 485
Silty fine sand 485 525
Med to coarse sand 525 552
Silt with fine sand 552 610
Fine to med sand/gravel 610 630
Silt/clay with wood 630 665
Fine to coarse sand/gravel 665 675
Silt/clay 675 800
Start Date 4/27/10 Completed Date 10/8/10
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Environmental Data
Resources (EDR) Report –
Executive Summary
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FORM-NULL-SPM
®kcehCoeG htiw tropeR ™paM suidaR RDE ehT
440 Wheelers Farms Road
Milford, CT 06461
Toll Free: 800.352.0050
www.edrnet.com
Wellhead Protection Contaminant Source Inventory
105 Yelm Ave. West
Yelm, WA 98597
Inquiry Number: 3269533.1s
March 01, 2012
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SECTION PAGE
Executive Summary ES1
Overview Map 2
Detail Map 3
Map Findings Summary 4
Map Findings 7
Orphan Summary 197
Government Records Searched/Data Currency Tracking GR-1
GEOCHECK ADDENDUM
Physical Setting Source Addendum A-1
Physical Setting Source Summary A-2
Physical Setting SSURGO Soil Map A-5
Physical Setting Source Map A-23
Physical Setting Source Map Findings A-25
Physical Setting Source Records Searched A-515
TC3269533.1s Page 1
Thank you for your business.
Please contact EDR at 1-800-352-0050
with any questions or comments.
Disclaimer - Copyright and Trademark Notice
This Report contains certain information obtained from a variety of public and other sources reasonably available to Environmental Data
Resources, Inc. It cannot be concluded from this Report that coverage information for the target and surrounding properties does not exist from
other sources. NO WARRANTY EXPRESSED OR IMPLIED, IS MADE WHATSOEVER IN CONNECTION WITH THIS REPORT. ENVIRONMENTAL
DATA RESOURCES, INC. SPECIFICALLY DISCLAIMS THE MAKING OF ANY SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION,
MERCHANTABILITY OR FITNESS FOR A PARTICULAR USE OR PURPOSE. ALL RISK IS ASSUMED BY THE USER. IN NO EVENT SHALL
ENVIRONMENTAL DATA RESOURCES, INC. BE LIABLE TO ANYONE, WHETHER ARISING OUT OF ERRORS OR OMISSIONS, NEGLIGENCE,
ACCIDENT OR ANY OTHER CAUSE, FOR ANY LOSS OF DAMAGE, INCLUDING, WITHOUT LIMITATION, SPECIAL, INCIDENTAL,
CONSEQUENTIAL, OR EXEMPLARY DAMAGES. ANY LIABILITY ON THE PART OF ENVIRONMENTAL DATA RESOURCES, INC. IS STRICTLY
LIMITED TO A REFUND OF THE AMOUNT PAID FOR THIS REPORT. Purchaser accepts this Report "AS IS". Any analyses, estimates, ratings,
environmental risk levels or risk codes provided in this Report are provided for illustrative purposes only, and are not intended to provide, nor
should they be interpreted as providing any facts regarding, or prediction or forecast of, any environmental risk for any property. Only a Phase I
Environmental Site Assessment performed by an environmental professional can provide information regarding the environmental risk for any
property. Additionally, the information provided in this Report is not to be construed as legal advice.
Copyright 2012 by Environmental Data Resources, Inc. All rights reserved. Reproduction in any media or format, in whole
or in part, of any report or map of Environmental Data Resources, Inc., or its affiliates, is prohibited without prior written permission.
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trademarks used herein are the property of their respective owners.
TABLE OF CONTENTS
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EXECUTIVE SUMMARY
TC3269533.1s EXECUTIVE SUMMARY 1
A search of available environmental records was conducted by Environmental Data Resources, Inc (EDR).
The report was designed to assist parties seeking to meet the search requirements of EPA’s Standards
and Practices for All Appropriate Inquiries (40 CFR Part 312), the ASTM Standard Practice for
Environmental Site Assessments (E 1527-05) or custom requirements developed for the evaluation of
environmental risk associated with a parcel of real estate.
TARGET PROPERTY INFORMATION
ADDRESS
105 YELM AVE. WEST
YELM, WA 98597
COORDINATES
46.9235000 - 46˚ 55’ 24.60’’Latitude (North):
122.6042000 - 122˚ 36’ 15.12’’Longitude (West):
Zone 10Universal Tranverse Mercator:
530134.8UTM X (Meters):
5196520.5UTM Y (Meters):
447 ft. above sea levelElevation:
USGS TOPOGRAPHIC MAP ASSOCIATED WITH TARGET PROPERTY
46122-H5 MCKENNA, WATarget Property Map:
1990Most Recent Revision:
46122-H6 TENALQUOT PRAIRIE, WAWest Map:
1990Most Recent Revision:
AERIAL PHOTOGRAPHY IN THIS REPORT
2009Photo Year:
USDASource:
TARGET PROPERTY SEARCH RESULTS
The target property was identified in the following records. For more information on this
property see page 7 of the attached EDR Radius Map report:
EPA IDDatabase(s)Site
CITY OF YELM
105 W YELM AVE
YELM, WA 98597
N/AALLSITES
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TC3269533.1s EXECUTIVE SUMMARY 2
DATABASES WITH NO MAPPED SITES
No mapped sites were found in EDR’s search of available ("reasonably ascertainable ") government
records either on the target property or within the search radius around the target property for the
following databases:
STANDARD ENVIRONMENTAL RECORDS
Federal NPL site list
NPLNational Priority List
Proposed NPL Proposed National Priority List Sites
NPL LIENS Federal Superfund Liens
Federal Delisted NPL site list
Delisted NPLNational Priority List Deletions
Federal CERCLIS list
CERCLISComprehensive Environmental Response, Compensation, and Liability Information System
FEDERAL FACILITYFederal Facility Site Information listing
Federal CERCLIS NFRAP site List
CERC-NFRAPCERCLIS No Further Remedial Action Planned
Federal RCRA CORRACTS facilities list
CORRACTSCorrective Action Report
Federal RCRA non-CORRACTS TSD facilities list
RCRA-TSDFRCRA - Treatment, Storage and Disposal
Federal RCRA generators list
RCRA-LQGRCRA - Large Quantity Generators
Federal institutional controls / engineering controls registries
US ENG CONTROLSEngineering Controls Sites List
US INST CONTROLSites with Institutional Controls
State- and tribal - equivalent NPL
HSLHazardous Sites List
State- and tribal - equivalent CERCLIS
CSCSLConfirmed and Suspected Contaminated Sites List
State and tribal leaking storage tank lists
INDIAN LUSTLeaking Underground Storage Tanks on Indian Land
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TC3269533.1s EXECUTIVE SUMMARY 3
State and tribal registered storage tank lists
ASTAboveground Storage Tank Locations
INDIAN UST Underground Storage Tanks on Indian Land
FEMA UST Underground Storage Tank Listing
State and tribal institutional control / engineering control registries
INST CONTROLInstitutional Control Site List
State and tribal voluntary cleanup sites
INDIAN VCPVoluntary Cleanup Priority Listing
State and tribal Brownfields sites
BROWNFIELDSBrownfields Sites Listing
ADDITIONAL ENVIRONMENTAL RECORDS
Local Brownfield lists
US BROWNFIELDSA Listing of Brownfields Sites
Local Lists of Landfill / Solid Waste Disposal Sites
DEBRIS REGION 9Torres Martinez Reservation Illegal Dump Site Locations
ODI Open Dump Inventory
SWTIRE Solid Waste Tire Facilities
INDIAN ODI Report on the Status of Open Dumps on Indian Lands
Local Lists of Hazardous waste / Contaminated Sites
US CDLClandestine Drug Labs
Local Land Records
LIENS 2CERCLA Lien Information
LUCIS Land Use Control Information System
Other Ascertainable Records
DOT OPSIncident and Accident Data
DOD Department of Defense Sites
FUDS Formerly Used Defense Sites
CONSENT Superfund (CERCLA) Consent Decrees
ROD Records Of Decision
UMTRA Uranium Mill Tailings Sites
MINES Mines Master Index File
TSCA Toxic Substances Control Act
SSTS Section 7 Tracking Systems
ICIS Integrated Compliance Information System
PADS PCB Activity Database System
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TC3269533.1s EXECUTIVE SUMMARY 4
MLTS Material Licensing Tracking System
RADINFO Radiation Information Database
RAATS RCRA Administrative Action Tracking System
DRYCLEANERS Drycleaner List
INDIAN RESERV Indian Reservations
SCRD DRYCLEANERSState Coalition for Remediation of Drycleaners Listing
COAL ASH Coal Ash Disposal Site Listing
COAL ASH DOE Sleam-Electric Plan Operation Data
COAL ASH EPA Coal Combustion Residues Surface Impoundments List
PCB TRANSFORMERPCB Transformer Registration Database
EDR PROPRIETARY RECORDS
EDR Proprietary Records
Manufactured Gas PlantsEDR Proprietary Manufactured Gas Plants
SURROUNDING SITES: SEARCH RESULTS
Surrounding sites were identified in the following databases.
Elevations have been determined from the USGS Digital Elevation Model and should be evaluated on
a relative (not an absolute) basis. Relative elevation information between sites of close proximity
should be field verified. Sites with an elevation equal to or higher than the target property have been
differentiated below from sites with an elevation lower than the target property.
Page numbers and map identification numbers refer to the EDR Radius Map report where detailed
data on individual sites can be reviewed.
Sites listed in bold italics are in multiple databases.
Unmappable (orphan) sites are not considered in the foregoing analysis.
STANDARD ENVIRONMENTAL RECORDS
Federal RCRA generators list
RCRA-SQG: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting
the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA)
of 1984. The database includes selective information on sites which generate, transport, store, treat and/or
dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Small quantity
generators (SQGs) generate between 100 kg and 1,000 kg of hazardous waste per month.
A review of the RCRA-SQG list, as provided by EDR, and dated 06/15/2011 has revealed that there are 4
RCRA-SQG sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
RITE AID 5286 YELM AVE 909 YELM AVE ENNE 1/2 - 1 (0.974 mi.)1210
LIVINGSTON BOATS INC 406 RAILROAD STN 1 - 2 (1.432 mi.)G4774
WAL MART SUPERCENTER 3705 17100 STATE RT 507 SEENE 1 - 2 (1.482 mi.)H5298
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
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TC3269533.1s EXECUTIVE SUMMARY 5
RCRA-CESQG: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting
the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA)
of 1984. The database includes selective information on sites which generate, transport, store, treat and/or
dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Conditionally
exempt small quantity generators (CESQGs) generate less than 100 kg of hazardous waste, or less than 1 kg of
acutely hazardous waste per month.
A review of the RCRA-CESQG list, as provided by EDR, and dated 06/15/2011 has revealed that there are
5 RCRA-CESQG sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
FRONTIER VILLAGE PROF DRYCLEAN 404 1ST ST SE & MOSMANNNW 1 - 2 (1.208 mi.)D2643
GORDERS AUTO REBUILD 103 1ST ST NN 1 - 2 (1.281 mi.)E3350
PENSKE TRUCK LEASING CO LP 801 NORTHERN PACIFIC RDN 1 - 2 (1.580 mi.)I63108
BNH AUTO WRECKING 17505 110TH AVE SEE 1 - 2 (1.701 mi.)K74158
YELM COMMUNITY SCHOOLS 14901 YELM HWY SENNW >2 (2.224 mi.)111185
Federal ERNS list
ERNS: The Emergency Response Notification System records and stores information on reported
releases of oil and hazardous substances. The source of this database is the U.S. EPA.
A review of the ERNS list, as provided by EDR, and dated 10/03/2011 has revealed that there are 2
ERNS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
16507 STATE ROUTE 507 SE 16507 STATE ROUTE 507 SNE 1/2 - 1 (0.949 mi.)A99
13431 SOLBERG RD. 13431 SOLBERG RD.SSW >2 (2.241 mi.)112186
State and tribal landfill and/or solid waste disposal site lists
SWF/LF: The Solid Waste Facilities/Landfill Sites records typically contain an inventory of solid
waste disposal facilities or landfills in a particular state. The data come from the Department of Ecology’s
Solid Waste Facilities Handbook.
A review of the SWF/LF list, as provided by EDR, and dated 10/11/2011 has revealed that there is 1
SWF/LF site within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
W.E. & B. LIMITED 15708 123RD AVENUES 1 - 2 (1.007 mi.)B1824
State and tribal leaking storage tank lists
LUST: The Leaking Underground Storage Tank Incident Reports contain an inventory of reported
leaking underground storage tank incidents. The data come from the Department of Ecology’s Leaking Underground
Storage Tanks Site List.
A review of the LUST list, as provided by EDR, and dated 11/22/2011 has revealed that there is 1 LUST
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TC3269533.1s EXECUTIVE SUMMARY 6
site within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
FLYING M 35618 HWY 507 SENE >2 (2.389 mi.)120189
State and tribal registered storage tank lists
UST: The Underground Storage Tank database contains registered USTs. USTs are regulated under
Subtitle I of the Resource Conservation and Recovery Act (RCRA). The data come from the Department of
Ecology’s Statewide UST Site/Tank Report.
A review of the UST list, as provided by EDR, and dated 11/22/2011 has revealed that there are 15 UST
sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
RAINIER CHEVRON 16518 YELM AVE SENE 1/2 - 1 (0.975 mi.)A1322
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2137
MICHAEL J MCCASLIN 107 S 1ST STN 1 - 2 (1.276 mi.)E3148
GORDERS AUTO REBUILD 103 1ST ST NN 1 - 2 (1.281 mi.)E3452
NISQUALLY VALLEY GOLF COURSE MOSSMAN & EDWARDSNNW 1 - 2 (1.315 mi.)3755
SAFEWAY FUEL CENTER YELM AVE 1109 A YELM AVE ENNW 1 - 2 (1.431 mi.)F4359
HARTS LAKE ASSOCIATES 402 NW RAILROADN 1 - 2 (1.432 mi.)G4460
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.568 mi.)I60105
NORTHWEST DELI MART 46 608 YELM HWYNNW 1 - 2 (1.584 mi.)J69152
CREAMERY TRANSPORT CO INC 17025 HANNUS RD SESE 1 - 2 (1.614 mi.)72155
GLACIER NORTHWEST INC YELM PLA 705 NW RHOTON RDN 1 - 2 (1.708 mi.)L77160
FOUR CORNER GROCERY 11500 BALD HILLS RDE 1 - 2 (1.745 mi.)M84166
YELM MAINTENANCE SITE 17526 HWY 507 SEENE 1 - 2 (1.781 mi.)O88169
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
FLYING M 35618 HWY 507 SENE >2 (2.389 mi.)120189
State and tribal voluntary cleanup sites
VCP: Sites that have entered either the Voluntary Cleanup Program or its predecessor
Independent Remedial Action Program.
A review of the VCP list, as provided by EDR, and dated 01/24/2012 has revealed that there are 3 VCP
sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
LIVINGSTON BOATS INC YELM 406 RAILROAD STN 1 - 2 (1.432 mi.)G4662
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
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TC3269533.1s EXECUTIVE SUMMARY 7
ICR: These are remedial action reports Ecology has received from either the owner or operator
of the site. These actions have been conducted without department oversight or approval and are not under an
order or decree.
A review of the ICR list, as provided by EDR, and dated 12/01/2002 has revealed that there are 2 ICR
sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
ADDITIONAL ENVIRONMENTAL RECORDS
Local Lists of Hazardous waste / Contaminated Sites
ALLSITES: Information on facilities and sites of interest to the Department of Ecology.
A review of the ALLSITES list, as provided by EDR, and dated 01/31/2012 has revealed that there are
38 ALLSITES sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
JIFFY LUBE STORE 2812 1002 E YELM AVENNE 1/2 - 1 (0.957 mi.)119
RITE AID 5286 YELM AVE 909 YELM AVE ENNE 1/2 - 1 (0.974 mi.)1210
WE & B LIMITED 15708 123RD AVES 1 - 2 (1.007 mi.)B1925
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
YCOM NETWORKS CONST YARD 10812 BALD HILL RD SEENE 1 - 2 (1.084 mi.)2241
MOUNT RAINIER CLINIC INC 503 1ST ST SNNW 1 - 2 (1.178 mi.)D2442
FRONTIER VILLAGE PROF DRYCLEAN 404 1ST ST SE & MOSMANNNW 1 - 2 (1.208 mi.)D2643
MICHAEL J MCCASLIN 107 S 1ST STN 1 - 2 (1.276 mi.)E3250
GORDERS AUTO REBUILD 103 1ST ST NN 1 - 2 (1.281 mi.)E3452
NISQUALLY VALLEY GOLF COURSE MOSSMAN & EDWARDSNNW 1 - 2 (1.315 mi.)3755
SAFEWAY FUEL CENTER YELM AVE 1109 A YELM AVE ENNW 1 - 2 (1.431 mi.)F4359
HARTS LAKE ASSOCIATES 402 NW RAILROADN 1 - 2 (1.432 mi.)G4460
LIVINGSTON BOATS INC YELM 406 RAILROAD STN 1 - 2 (1.432 mi.)G4662
JOHNS MEADOWS 16440 MIDDLE RD SENNE 1 - 2 (1.480 mi.)4990
WAL MART SUPERCENTER 3705 17100 SR 507 SEENE 1 - 2 (1.482 mi.)H5091
SAMANTHA RIDGE 502 CRYSTAL SPRINGS STN 1 - 2 (1.565 mi.)58102
CENEX HARVEST STATES YELM 509 RHOTON RDN 1 - 2 (1.577 mi.)I61107
PENSKE TRUCK LEASING CO LP 801 NORTHERN PACIFIC RDN 1 - 2 (1.580 mi.)I63108
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
YELM AREA RELIABILITY 16302 RAILWAY RD SENNE 1 - 2 (1.583 mi.)66151
WESTSTAR INC 608 YELM AVENUENNW 1 - 2 (1.584 mi.)J67151
CREAMERY TRANSPORT CO INC 17025 HANNUS RD SESE 1 - 2 (1.614 mi.)72155
BNH AUTO WRECKING 17505 110TH AVE SEE 1 - 2 (1.701 mi.)K73157
GLACIER NORTHWEST 705 NORTHWEST RHOTON RON 1 - 2 (1.708 mi.)L78161
VAIL RD DRUG LAB 11515 VAIL RD SEE 1 - 2 (1.709 mi.)M80163
BILLS TOWING 801 W YELM AVENNW 1 - 2 (1.710 mi.)N81164
FOUR CORNER GROCERY 11500 BALD HILLS RDE 1 - 2 (1.745 mi.)M84166
YELM MAINTENANCE SITE 17526 HWY 507 SEENE 1 - 2 (1.781 mi.)O88169
T AUTOMOTIVE SERVICE 16713 CANAL RD SENNE 1 - 2 (1.893 mi.)P91171
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
HOFFMAN PLAT 9405 CULLENS RDN 1 - 2 (1.958 mi.)Q94177
CULLENS ROAD PLAT 9329 CULLENS RDN >2 (2.011 mi.)Q98179
YELM DRUG CHEMICAL DU NW COR OF FLUME RD & BRNNE >2 (2.018 mi.)100180
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PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM WWTP 931 NORTHERN PACIFIC RDNNE >2 (2.032 mi.)R103182
YELM COMMUNITY SCHOOLS 14901 YELM HWY SENNW >2 (2.224 mi.)111185
NISQUALLY VALLEY CARE CENTER 9414 357TH ST SENE >2 (2.254 mi.)T113187
FLYING M 35618 HWY 507 SENE >2 (2.389 mi.)120189
WEST AIR AVIATION 18324 COOK RD 6E >2 (2.488 mi.)126195
CSCSL NFA: The data set contains information about sites previously on the Confirmed and Suspected
Contaminated Sites list that have received a No Further Action (NFA) determination. Because it is necessary to
maintain historical records of sites that have been investigated and cleaned up, sites are not deleted from
the database when cleanup activities are completed. Instead a No Further Action code is entered based upon the
type of NFA determination the site received.
A review of the CSCSL NFA list, as provided by EDR, and dated 01/24/2012 has revealed that there are
4 CSCSL NFA sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
LIVINGSTON BOATS INC YELM 406 RAILROAD STN 1 - 2 (1.432 mi.)G4662
BILLS TOWING 801 W YELM AVENNW 1 - 2 (1.710 mi.)N81164
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
CDL: Illegal methamphetamine labs use hazardous chemicals that create public health hazards.
Chemicals and residues can cause burns, respiratory and neurological , damage and death. Biological hazards
associated with intravenous needles, associated with intravenous needles, feces, and blood risks.
A review of the CDL list, as provided by EDR, and dated 02/09/2009 has revealed that there is 1 CDL
site within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
Not reported 11822 HOBBY ST SEWSW 1 - 2 (1.578 mi.)62107
HIST CDL: This listing of contaminated sites by Clandestine Drug Labs includes non-remediated
properties. The current CDL listing does not. This listing is no longer updated by the state agency.
A review of the HIST CDL list, as provided by EDR, and dated 02/08/2007 has revealed that there are 5
HIST CDL sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
Not reported 11822 HOBBY ST SEWSW 1 - 2 (1.578 mi.)62107
Not reported 12220 HILLCRESTWSW 1 - 2 (1.959 mi.)96178
Not reported 14504-C SE BERRY VALLEYNW >2 (2.085 mi.)104183
Not reported 9346 BRIDGE RDNNE >2 (2.204 mi.)S107184
Not reported 9110 PEPPERIDGE LANENNE >2 (2.414 mi.)W122194
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US HIST CDL: A listing of clandestine drug lab locations. The U.S. Department of Justice ("the
Department") provides this web site as a public service. It contains addresses of some locations where law
enforcement agencies reported they found chemicals or other items that indicated the presence of either
clandestine drug laboratories or dumpsites. In most cases, the source of the entries is not the Department,
and the Department has not verified the entry and does not guarantee its accuracy. Members of the public must
verify the accuracy of all entries by, for example, contacting local law enforcement and local health
departments.
A review of the US HIST CDL list, as provided by EDR, and dated 09/01/2007 has revealed that there is
1 US HIST CDL site within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
15913 SE 90TH AVE 15913 SE 90TH AVEN >2 (2.292 mi.)U116188
Records of Emergency Release Reports
HMIRS: The Hazardous Materials Incident Report System contains hazardous material spill incidents
reported to the Department of Transportation. The source of this database is the U.S. EPA.
A review of the HMIRS list, as provided by EDR, and dated 10/04/2011 has revealed that there are 2
HMIRS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
Not reported 16507 STATE ROUTE 507 SNE 1/2 - 1 (0.948 mi.)A79
Not reported 16507 STATE ROUTE 507 SNE 1/2 - 1 (0.948 mi.)A89
SPILLS: Depending on the state, these may be active or inactive facilities or open dumps that
failed to meet RCRA Subtitle D Section 4004 criteria for solid waste landfills or disposal sites.
A review of the SPILLS list, as provided by EDR, and dated 01/03/2012 has revealed that there are 39
SPILLS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
UNKNOWN 10826 VANCIL ROADNE 1/2 - 1 (0.701 mi.)27
PUGET SOUND ENERGY- PSE 10730 MORRIS ROADNE 1/2 - 1 (0.849 mi.)48
Not reported 15836 123 AVENUES 1/2 - 1 (0.994 mi.)1523
UNKNOWN 15011 119TH WAY SE YELMSW 1 - 2 (1.005 mi.)1624
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
Not reported 118 MOSSMAN AVENUE SOUTNNW 1 - 2 (1.170 mi.)D2341
Not reported 15218 123RD AVENUE SOUTSSW 1 - 2 (1.197 mi.)2542
Not reported 222 YELM AVENUE EASTN 1 - 2 (1.226 mi.)2747
PUGET SOUND ENERGY 12520 MORRIS ROAD SES 1 - 2 (1.226 mi.)2847
PUGET SOUND ENERGY 15235 105TH AVENUE SOUTNW 1 - 2 (1.235 mi.)2947
Not reported 10535 GROVE ROADNE 1 - 2 (1.248 mi.)3047
UNKNOWN 10405 GROVE ROAD SE, YENE 1 - 2 (1.287 mi.)3654
AMTEK 406 RAILROAD STREETN 1 - 2 (1.431 mi.)G4057
WAL MART SUPERCENTER 3705 17100 SR 507 SEENE 1 - 2 (1.482 mi.)H5091
Not reported 17246 110 TH AVENUE SOUE 1 - 2 (1.500 mi.)54101
UNKNOWN 11610 HOBIE STREET SOUTWSW 1 - 2 (1.521 mi.)56102
Not reported 16145 RAILWAY RDN 1 - 2 (1.526 mi.)57102
CHIROPRACTIC OFFICE 604 YELM HWY SE, SUITE NNW 1 - 2 (1.582 mi.)J65151
WESTSTAR INC 608 YELM AVENUENNW 1 - 2 (1.584 mi.)J67151
Not reported 11647 VAIL ROAD SOUTHEAESE 1 - 2 (1.705 mi.)75159
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PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
GLACIER NORTHWEST 705 NORTHWEST RHOTON RON 1 - 2 (1.708 mi.)L78161
Not reported 14945 129TH LANE SESW 1 - 2 (1.726 mi.)83165
Not reported 909 YELM AVENUE WESTNNW 1 - 2 (1.772 mi.)87168
Not reported 16747 CANAL ROAD SENNE 1 - 2 (1.868 mi.)P90171
Not reported 110TH AND VAIL ROAD SOUE 1 - 2 (1.934 mi.)93177
Not reported HWY 507/ VAIL RD SEENE 1 - 2 (1.997 mi.)97179
GERBER & SONS 9801 BRIDGE RD SENE >2 (2.026 mi.)101182
Not reported 9543 BRIDGE ROAD SOUTHENNE >2 (2.103 mi.)106183
Not reported 9346 BRIDGE ROADNNE >2 (2.204 mi.)S108184
Not reported 11234 AERO LANE SEE >2 (2.205 mi.)109184
PREVIOUS OWNER 119 VIEW DRIVE NORTHWESN >2 (2.206 mi.)110184
Not reported 15913 90TH AVE SEN >2 (2.290 mi.)U115188
RESIDENCE 9132 BRIDGE RDNNE >2 (2.350 mi.)V117188
Not reported 9132 BRIDGE ROADNNE >2 (2.350 mi.)V118189
UNKNOWN 35807 94TH AVENUE SOUTHENE >2 (2.357 mi.)119189
Not reported 9110 PEPPERIDGE LANE SONNE >2 (2.414 mi.)W121194
Not reported 12635 WAGON WHEEL ROAD SW >2 (2.474 mi.)X123194
Not reported 13103 ZELLER ROAD SESW >2 (2.475 mi.)124195
Not reported 12648 WAGONWHEEL ROAD SSW >2 (2.479 mi.)X125195
Other Ascertainable Records
RCRA-NonGen: RCRAInfo is EPA’s comprehensive information system, providing access to data supporting
the Resource Conservation and Recovery Act (RCRA) of 1976 and the Hazardous and Solid Waste Amendments (HSWA)
of 1984. The database includes selective information on sites which generate, transport, store, treat and/or
dispose of hazardous waste as defined by the Resource Conservation and Recovery Act (RCRA). Non-Generators do
not presently generate hazardous waste.
A review of the RCRA-NonGen list, as provided by EDR, and dated 06/15/2011 has revealed that there
are 6 RCRA-NonGen sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
VAIL RD DRUG LAB 11515 VAIL RD SEE 1 - 2 (1.709 mi.)M80163
T AUTOMOTIVE SERVICE 16713 CANAL RD SENNE 1 - 2 (1.893 mi.)P91171
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
YELM DRUG CHEMICAL DU NW COR OF FLUME RD & BRNNE >2 (2.018 mi.)100180
WEST AIR AVIATION 18324 COOK RD 6E >2 (2.488 mi.)126195
TRIS: The Toxic Chemical Release Inventory System identifies facilities that release toxic
chemicals to the air, water, and land in reportable quantities under SARA Title III, Section 313. The source
of this database is the U.S. EPA.
A review of the TRIS list, as provided by EDR, and dated 12/31/2009 has revealed that there are 2
TRIS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
GLACIER NORTHWEST INC YELM PLA 705 RHOTON RDN 1 - 2 (1.708 mi.)L79163
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FTTS: FTTS tracks administrative cases and pesticide enforcement actions and compliance
activities related to FIFRA, TSCA and EPCRA (Emergency Planning and Community Right-to-Know Act) over the
previous five years. To maintain currency, EDR contacts the Agency on a quarterly basis.
A review of the FTTS list, as provided by EDR, and dated 04/09/2009 has revealed that there are 2
FTTS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SD 2 404 YELM AVE WN 1 - 2 (1.431 mi.)F4158
LIVINGSTON BOATS INC 406 RAILROAD STN 1 - 2 (1.432 mi.)G4774
HIST FTTS: A complete administrative case listing from the FIFRA/TSCA Tracking System (FTTS) for all
ten EPA regions. The information was obtained from the National Compliance Database (NCDB). NCDB supports
the implementation of FIFRA (Federal Insecticide, Fungicide, and Rodenticide Act) and TSCA (Toxic Substances
Control Act). Some EPA regions are now closing out records. Because of that, and the fact that some EPA
regions are not providing EPA Headquarters with updated records, it was decided to create a HIST FTTS
database. It included records that may not be included in the newer FTTS database updates. This database is
no longer updated.
A review of the HIST FTTS list, as provided by EDR, and dated 10/19/2006 has revealed that there are
2 HIST FTTS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM SD 2 404 YELM AVE WN 1 - 2 (1.431 mi.)F4158
LIVINGSTON BOATS INC 406 RAILROAD STN 1 - 2 (1.432 mi.)G4774
FINDS: The Facility Index System contains both facility information and "pointers" to other
sources of information that contain more detail. These include: RCRIS; Permit Compliance System (PCS);
Aerometric Information Retrieval System (AIRS); FATES (FIFRA [Federal Insecticide Fungicide Rodenticide Act]
and TSCA Enforcement System, FTTS [FIFRA/TSCA Tracking System]; CERCLIS; DOCKET (Enforcement Docket used to
manage and track information on civil judicial enforcement cases for all environmental statutes); Federal
Underground Injection Control (FURS); Federal Reporting Data System (FRDS); Surface Impoundments (SIA); TSCA
Chemicals in Commerce Information System (CICS); PADS; RCRA-J (medical waste transporters/disposers); TRIS;
and TSCA. The source of this database is the U.S. EPA/NTIS.
A review of the FINDS list, as provided by EDR, and dated 10/23/2011 has revealed that there are 42
FINDS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM PRAIRIE ELEMENTARY 16535 110TH AVE. SEENE 1/2 - 1 (0.731 mi.)37
MILL POND INTERMEDIATE SCHOOL 909 MILL RD SENNW 1/2 - 1 (0.948 mi.)68
JIFFY LUBE STORE 2812 1002 E YELM AVENNE 1/2 - 1 (0.957 mi.)119
RITE AID 5286 YELM AVE 909 YELM AVE ENNE 1/2 - 1 (0.974 mi.)1210
RAINIER CHEVRON 16518 YELM AVE SENE 1/2 - 1 (0.975 mi.)A1423
WE & B LIMITED 15708 123RD AVES 1 - 2 (1.005 mi.)B1724
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
YCOM NETWORKS CONST YARD 10812 BALD HILL RD SEENE 1 - 2 (1.084 mi.)2241
MOUNT RAINIER CLINIC INC 503 1ST ST SNNW 1 - 2 (1.178 mi.)D2442
FRONTIER VILLAGE PROF DRYCLEAN 404 1ST ST SE & MOSMANNNW 1 - 2 (1.208 mi.)D2643
MICHAEL J MCCASLIN 107 S 1ST STN 1 - 2 (1.276 mi.)E3250
GORDERS AUTO REBUILD 103 1ST ST NN 1 - 2 (1.281 mi.)E3350
YELM EXTENSION SCHOOL 107 FIRST ST NORTHN 1 - 2 (1.283 mi.)E3554
YELM EXTENSION SCHOOL 203 N FIRST STN 1 - 2 (1.318 mi.)3857
YELM MIDDLE SCHOOL 402 YELM AVE. WN 1 - 2 (1.430 mi.)F3957
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PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
LACKAMAS ELEMENTARY 16240 BALD HILL RDN 1 - 2 (1.431 mi.)F4258
HARTS LAKE ASSOCIATES 402 NW RAILROADN 1 - 2 (1.432 mi.)G4561
LIVINGSTON BOATS INC 406 RAILROAD STN 1 - 2 (1.432 mi.)G4774
FORT STEVENS ELEMENTARY 16525 100TH WAY SENNE 1 - 2 (1.456 mi.)4890
WAL MART SUPERCENTER 3705 17100 STATE RT 507 SEENE 1 - 2 (1.482 mi.)H53100
CENEX HARVEST STATES YELM 509 RHOTON RDN 1 - 2 (1.577 mi.)I61107
PENSKE TRUCK LEASING CO LP 801 NORTHERN PACIFIC RDN 1 - 2 (1.580 mi.)I63108
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
NORTHWEST DELI MART 46 608 YELM HWYNNW 1 - 2 (1.584 mi.)J70155
CREAMERY TRANSPORT CO INC 17025 HANNUS RD SESE 1 - 2 (1.614 mi.)72155
BNH AUTO WRECKING 17505 110TH AVE SEE 1 - 2 (1.701 mi.)K74158
CENTRAL REDDIMIX INC 705 RHOTON RDN 1 - 2 (1.708 mi.)L76160
GLACIER NORTHWEST INC YELM PLA 705 NW RHOTON RDN 1 - 2 (1.708 mi.)L77160
VAIL RD DRUG LAB 11515 VAIL RD SEE 1 - 2 (1.709 mi.)M80163
BILLS TOWING 801 W YELM AVENNW 1 - 2 (1.710 mi.)N82165
FOUR CORNER GROCERY 11500 BALD HILLS RDE 1 - 2 (1.745 mi.)M85168
YELM MAINTENANCE SITE 17526 HWY 507 SEENE 1 - 2 (1.808 mi.)O89170
T AUTOMOTIVE SERVICE 16713 CANAL RD SENNE 1 - 2 (1.893 mi.)P91171
WOOD FABRICATORS 1001 NE RHOTON RDN 1 - 2 (1.918 mi.)92172
HOFFMAN PLAT 9405 CULLENS ROADN 1 - 2 (1.958 mi.)Q95178
CULLENS ROAD PLAT 9329 CULLENS ROADN >2 (2.011 mi.)Q99180
YELM DRUG CHEMICAL DU NW COR OF FLUME RD & BRNNE >2 (2.018 mi.)100180
YELM WATER RECLAMATION FACILIT 931 NORTHERN PACIFIC RONNE >2 (2.031 mi.)R102182
YELM HIGH SCHOOL 12 1315 YELM AVE. WNNW >2 (2.093 mi.)105183
YELM COMMUNITY SCHOOLS 14901 YELM HWY SENNW >2 (2.224 mi.)111185
NISQUALLY VALLEY CARE CENTER 9414 357TH ST SENE >2 (2.254 mi.)T114187
WEST AIR AVIATION 18324 COOK RD 6E >2 (2.488 mi.)126195
UIC: A listing of underground injection wells.
A review of the UIC list, as provided by EDR, and dated 11/22/2011 has revealed that there are 3 UIC
sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
CHURCH OF JESUS CHRIST OF LDS 10423 CLARK ROAD SEN 1/2 - 1 (0.896 mi.)58
TODAY’S DENTAL 502 WEST YELM AVENUENNW 1 - 2 (1.515 mi.)55101
TAHOMA TERRA INFILTRATION GALL 14848 LONGMIRE ST SENW 1 - 2 (1.587 mi.)71155
MANIFEST: Hazardous waste manifest information.
A review of the MANIFEST list, as provided by EDR, and dated 12/31/2010 has revealed that there are 6
MANIFEST sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
RITE AID 5286 YELM AVE 909 YELM AVE ENNE 1/2 - 1 (0.974 mi.)1210
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2025
LIVINGSTON BOATS INC 406 RAILROAD STN 1 - 2 (1.432 mi.)G4774
WAL MART SUPERCENTER 3705 17100 STATE RT 507 SEENE 1 - 2 (1.482 mi.)H5191
PENSKE TRUCK LEASING CO LP 801 NORTHERN PACIFIC RDN 1 - 2 (1.580 mi.)I63108
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
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NPDES: A listing of permitted wastewater facilities.
A review of the NPDES list, as provided by EDR, and dated 01/31/2012 has revealed that there are 4
NPDES sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
YELM AREA RELIABILITY 16302 RAILWAY RD SENNE 1 - 2 (1.583 mi.)66151
GLACIER NORTHWEST 705 NORTHWEST RHOTON RON 1 - 2 (1.708 mi.)L78161
CULLENS ROAD PLAT 9329 CULLENS RDN >2 (2.011 mi.)Q98179
NISQUALLY VALLEY CARE CENTER 9414 357TH ST SENE >2 (2.254 mi.)T113187
AIRS: State of Washington, Department of Ecology, Washington Emissions Data System.
A review of the AIRS list, as provided by EDR, and dated 12/31/2010 has revealed that there are 3
AIRS sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
LIVINGSTON BOATS INC YELM 406 RAILROAD STN 1 - 2 (1.432 mi.)G4662
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.568 mi.)I59103
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
Inactive Drycleaners: A listing of inactive drycleaner facility locations.
A review of the Inactive Drycleaners list, as provided by EDR, and dated 12/31/2010 has revealed that
there is 1 Inactive Drycleaners site within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
FRONTIER VILLAGE PROF DRYCLEAN 404 1ST ST SE & MOSMANNNW 1 - 2 (1.208 mi.)D2643
FINANCIAL ASSURANCE: A listing of financial assurance information for underground storage tank facilities.
Financial assurance is intended to ensure that resources are available to pay for the cost of closure,
post-closure care, and corrective measures if the owner or operator of a regulated facility is unable or
unwilling to pay.
A review of the FINANCIAL ASSURANCE list, as provided by EDR, and dated 11/21/2011 has revealed that
there are 5 FINANCIAL ASSURANCE sites within approximately 2.5 miles of the target property.
PageMap IDDirection / Distance Address Lower Elevation ____________________ ________ _____________________________
HASSAN CORPORATION 16507 SR 507NE 1/2 - 1 (0.949 mi.)A109
YELM SHELL 706 YELM AVE ENNE 1 - 2 (1.019 mi.)C2137
LASCO BATHWARE 801 NORTHERN PACIFICN 1 - 2 (1.580 mi.)I64119
PARKS PLACE 608 W YELM AVENNW 1 - 2 (1.584 mi.)J68152
FOUR CORNER GROCERY 11500 BALD HILLS RDE 1 - 2 (1.745 mi.)M86168
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Due to poor or inadequate address information, the following sites were not mapped. Count: 30 records.
Site Name Database(s)____________ ____________
18220 SE BALD HILLS RD US HIST CDL
MANKE LUMBER CO ROY PIT ALLSITES
BAYDO CHEVROLET ROY ALLSITES
HYDRAULIC FLUID SPILL ROW 328TH ST CSCSL, ALLSITES
GIGLIOTTI PAT CABINET CO RCRA-NonGen, FINDS, ALLSITES
RITE AID 5286 RCRA-SQG, FINDS, ALLSITES
KEN M SPOONER FARMS INC ALLSITES, UST
TAHOMA TERRA ALLSITES
WAL MART STORE 3705-01 SR510 EXT ALLSITES
DESCHUTES DRUG LAB ALLSITES
VAIL RD 153RD TO BALD HILL RD ALLSITES, NPDES
VAIL ROAD ALLSITES
YELM RITE AIDE ALLSITES, CSCSL NFA, VCP
HASSAN CORP RCRA-LQG, FINDS, ALLSITES, UST
YELM GARAGE FINDS, ALLSITES
RAINIER COMMONS - CHEVRON ALLSITES, SPILLS
YELM/TRUMP PLAT UIC
206 3RD ST HIST CDL
7842 RAINER ROAD HIST CDL
7843 RAINER ROAD. HIST CDL
CHEVY STEP VAN HIST CDL
AMTECH CORP FTTS, HIST FTTS
YELM WWTP SWF/LF
YELM GARAGE UST
DESCHUTES DRUG LAB RCRA-NonGen, FINDS
15913 90TH SE AVE US CDL
18220 BALD HILLS SE RD US CDL
9502 CULLENS RD US CDL
RAINIER CHEVRON FINANCIAL ASSURANCE
SAFEWAY #1619 FINANCIAL ASSURANCE
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480
4
80
4 4 0440
4 4 0 4 40
480 4 4 0
4
80
44 0
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320
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DR
A
F
T
Appendix F
SW Well 1A Sanitary Control
Area and Declaration of
Covenant
DR
A
F
T
DRAFT
DR
A
F
T
DR
A
F
T
DR
A
F
T
METHODOFSURVEY
RECORD
OF
SURVEY
FOR
THE
CITY
OF
YELM
WELL
No.
LA
RD2'IRONPIPE;
-THISSURVEYWASPERFORMEDANDALLMONUMENTS
VISITED
DURING
AUGUST
2012
USING
A
TOPCON
Is
0.7
SouTH
OF
EXHIBIT
"B"
--wGR-3GPSRECEiVERFORORIENTATIONTO
HORIZONTAL
DATUM,
BOUNDARY
T1ES,
ESTABLISHMENT
OF
--
Nas*
50'
20%
1327.13(81)
CALC'D
PosmoN.
-PRIMARYCONTROL,USINGRTK.
455.50
**THISSURVEYMEETSOREXCEEDSTHEMINIMUM
STANDARDS
OF
WASHINGTON
ADMINISTRATIVE
CODE
427.50
'b
24
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40'
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23
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STAMPED
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TRACTFOFBOUNDARYLINEADJUSTMENTNo.
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THENCESOUTH01'40'34"WESTALONGTHEWEST
LINE
OF
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A
DISTANCE
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I
BRASS
DISC
THENCESOUTH8910'49"EASTAl..0NGTHESOUTH
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SAID
CURVE
L=48.63
CONCAVETOTHESOUTHHAVINGARADIUSOF
642.00
FEET
AND
A
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ANGLE
OF
31'23'40"
TO
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R
190.50
7.31'
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AND
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OF
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&
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7
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&
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AT
THE
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OF
A
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OF
L
35.20'
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CALCD
POSDON.
----.
R=350.00
CURVECONCAVETOTHESOUTHHAVINGARADIUSOF
582.00
FEET,
WHICH
BEARS
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00'31'26"
QCD
R=28.00
WESTANDACENTRALANGLEOF31'17'15"AND
BEING
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182.28
A=-7'3526*
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-
--
-
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-
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--
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--
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---
--
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57.04
.
-------
ax
..
.--
L
REFERENCESURVEYS(R1)BOUNDARYUNEADJUSTMENT
(BLA-08-0229-YI..),
AFN
4027040;
KPFF,
JULY
2008.
-
----
----.
(R2)PETOFTAHOMATERRAPHASE1,DMSION1,
AFN
3830707;
BUTLER
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MAY
2006.
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AFN
402173;
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AUGUST
2008.
(R4)AFFIDAVITOFMINORCORRECTIONOF
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(AFN
4027040),
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4032054;
AUGUST
2008.
1
=
100
GLOSSARY
,
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200
FND=FOUND
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o
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*
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(QCD)=QUIT.CUMMDEEDAFN4283111
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231
24
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39TH
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N89'
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PUYALLUP,
WA98374
26
25
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253.604.6600
ENGINEERING.
PLANNING.
ENVIRONMENTAL
SC
ENCES
F.
253.604.6799
www.parametrix.com
AUDITOR'SCERTIFICATE
SURVEYOR'S
CERTIFICATE
INDEX
DATA
PMX
JOB
NO.
216-1781-026
NE
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RANGE
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/
it
WASHINGTON
DATE
09/11/2012
DRAFT
Appendix G
Example Letters of
Notification and Notification
List
DR
A
F
T
Example Letter of Notification – Owners/Operators of Potential Sources of Contamination
Dear (Owner/Operator):
In order to protect the drinking water supply for the customers of the City of Yelm’s Water System, we
have developed a wellhead protection program in accordance with State requirements. As part of our
wellhead protection program, we mapped the area overlying the short ‐term recharge zone of our
drinking water supply wells. This is called our wellhead protection area.
Following identification of the wellhead protection area, we conducted an inventory of potential sources
of groundwater contamination within the area. The nature of your business and its location within our
wellhead protection area means that your activities have the potential to affect our drinking water
supply sources.
We have notified the regulatory agencies that regulates your type of business/facility of your presence
within our wellhead protection area. You should contact them to request technical assistance to help
manage your business in a way that will best prevent groundwater contamination. We realize you are
already careful to protect the environment as you conduct your business. We hope that in forming you
of your location in our wellhead protection area will result in an increase in precautions to ensure that
your activities will not impact our drinking water quality.
Sincerely,
DR
A
F
T
Example Letter of Notification – Regulatory Agencies/Local Governments
Dear (Agency /Local Government):
As part of the wellhead protection program for the City of Yelm Water System, we are hereby informing
you of the findings of our wellhead protection area delineation. This is in accordance with State
regulations (WAC 246‐290‐135).
The City currently has 3,188 service connections, and serves a population of approximately 5,815
people. The State Department of Health has given our system a rating of “highly susceptible.” This
means that our drinking water supply is very vulnerable to contamination.
The enclosed map shows the 6‐month and 1‐, 5‐, and 10‐year time of travel boundaries for our wellhead
protection area. Any groundwater contamination that occurs within this wellhead protection area has a
high potential to reach our drinking water supply wells. It is therefore of utmost importance to us that
all reasonable steps be taken to ensure that land use activities within this area do not contaminate our
customers’ drinking water supplies.
Thank you for your support in protecting our drinking water.
Sincerely,
DR
A
F
T
Example Letter of Notification – Local Emergency Responders
Dear (Emergency Responder):
The City of Yelm, WA has developed a Wellhead Protection Plan as required by the Washington State
Department of Health. As part of this plan, our water system must coordinate with agencies responsible
for incident/spill response procedures. Using the results of the susceptibility assessment and the
findings of the wellhead protection inventory, local emergency responders are asked to evaluate
whether changes in incident/spill response procedures are needed to better protect groundwater within
the wellhead protection areas. As stated in Washington State Department of Health’s Wellhead
Protection Program Guidance Document, “If a public water system’s source water is determined to be
vulnerable to surface activities, special procedures may need to be incorporated into local emergency
response plans”. The State Department of Health has given our system a rating of “highly susceptible.”
This means that our drinking water supply is very vulnerable to contamination.
A map of the wellhead protection areas with potential contaminant sources is enclosed for your review.
An acknowledgement of receipt of this information and/or response from your office would be
appreciated.
Thank you for your support in protecting our drinking water source. If you have any questions about the
plan, please feel free to contact us.
Sincerely,
DR
A
F
T
Regulatory Agencies and Local Governments
Washington State Department of Ecology
Division of Water Resources
PO Box 47775
Olympia, WA 98504‐7775
Phone: (360) 407‐6300
Washington State Department of Health
Division of Drinking Water
PO Box 47822
Olympia, WA 98504‐7822
Phone: (360) 236‐3100
Thurston County Department of Public Health
and Social Services
412 Lilly Rd. NE
Olympia, WA 98506‐5132
Phone: (360) 867‐2500
Local Emergency Incident Responders
Tim Peterson
Emergency Coordinator/Public Works Director
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8499
Evening Phone: (360) 894‐2698
Yelm Fire District
PO Box 777
Yelm, WA 98597
Emergency Phone: 911
Business Phone: (360) 458‐2799
Yelm Police Department
206 McKenzie Ave SE
Yelm, WA 98597
Emergency Phone: 911
Business Phone: (360) 458‐5701
Washington State Department of
Transportation, Emergency Response
2501 112 St. SE
Tacoma, WA 98445‐5104
Phone: (253) 536‐6089
Thurston County Emergency Management
9521 Tilley Rd. SW
Olympia, WA 98512
Phone: (360) 867‐2800
Washington State Department of Ecology
Spill Response Program
PO Box 47775
Olympia, WA 98504‐7775
Phone: (360) 407‐6300
DR
A
F
T
City of Yelm Public Works Contact List
Tim Peterson
Emergency Coordinator/Public Works Director
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8499
Evening Phone: (360) 894‐2698
Kevin Ray
Public Works Field Supervisor
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8406
Evening Phone: (360) 789‐2722
Edward "Smitty" Smith
Lead Water System Operator
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8406
Evening Phone: (360) 446‐7278
John Ivey
Water System Operator
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8406
Evening Phone: (360) 250‐9543
Timothy Rarick
Water System Operator
901 Rhoton Road
Yelm, Washington 98597
Day Phone: (360) 458‐8406
Evening Phone: (360) 894‐1272
DR
A
F
T
Golder, Golder Associates and the GA globe design are trademarks of Golder Associates Corporation
Golder Associates Inc.
9 Monroe Parkway, Suite 270
Lake Oswego, OR
Tel: 503-607-1820
Fax: 503-607-1825
DR
A
F
T