DOE Comment re NOA0
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DEPARTMENT OF ECOLOGY
PO Box 41115 • Olympia, Washington 9N504JJ15 • (360) 401-6300
June 22, 2006
Ms. Tami Merriman -~ ~ ~
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Community Development Department ~
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City of Yelm I Nisqually
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PO Box 479 watershed
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Yehn, WA 98597
Dear Ms. Merriman:
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Thank you for the opportunity to comment on the notice of application Cor the Hutch Subdivision (SUB-
OS-0601-YL), located at 9306 Mountain V iew Road, as proposed by Yelm Property Development The
Department of 8cology (Ecology) reviewed [he information provided and has the following comment(s):
WATER QUALITY: Margaret Hill (360) 407-0246
Any discharge of sediment-laden runoff or other pollutants to waters of [he state is in violation of
Chapter 90.48, Water Pollution Control, and WAC 173-201 A, Water Quality Standards for Surface
Waters of the State of Washington, and is subject to enforcement action.
Erosion control measures must be in place prior to any clearing, grading, or construction. These
control measures must be effective to prevent stortnwater runoff from carrying soil and other
pot lu[ants into surface water or storm drains that lead to waters of the state. Sand, silt, clay panicles,
and soil will damage aquatic habitat and are considered to be pollutants.
Proper disposal of construction debris must be on land in such a manner that debris cannot enter the
natural Stormwater drainage system or cause water quality degradation of state waters.
Coverage under the National Pollution Discharge Elimination System (NPDES) and State Waste
Discharge General Permit for Stormwater Discharges Associated witlt Construction Activities is
required for construction sites which disturb an area of one acre or more and which have or will have
a discharge of Stormwater to surface water or a storm sewer. An application can be downloaded from
Ecology's website at http~// y a eo /nrocrams/ q/sto ate /co st Con/#Applica[ion or
you can contact Charles Gilman at (360) 407-7451 for an application tbnn.
Soil in stockpiles should be stabilized or protected with sediment-trapping measures [o prevent soil
loss. All exposed areas of final grade or areas that are not scheduled for work, whether at final grade
or otherwise, shall not remain exposed and un-worked for more than two days, between October I
and April 30. Between May I and September 30, no soils shall remain exposed and un-worked for
more than 7 days.
Clearing limits and/or any casements or required buffers should be identified and marked in the field,
prior to [he start of any clearing, grading, or construction. Some suggested methods are staking and
flagging or high visibiliTy fencing.
-_ CJ
June 22, 2006
Page 2
Properties adjacent to the site of a land disturbance should be protected from sediment deposition
through the use of buffers or other perimeter wutrols, such as filter fence or sediment basins.
Provision should be made to minimize the tracking of sediment by construction vehicles onto paved
public roads. If sediment is deposited, i[ should be cleaned every day by shoveling or sweeping.
Water cleaning should only be done after the area has been shoveled out or swept.
Wash water from paint and wall finishing equipment should be disposed of in a way which will not
adversely impact waters of the state. Untreated disposal of this wastewater is a violation of Stale
Water Quality laws and statutes and as such, would be subject to enforcement action.
Source cou[rol Best Management Practices (BMPs) such as plastic covering, mulch, temporary
seeding, and phased clearing (for example) should be used to control erosion doting construction.
More examples of effective source conhol BMPs can be found in Ecology's two s[ormwater
management manuals, Stormwater Managemenr Mauual for Puget Sound (1992) and Stormwater
Management Manual for Western Washington (2001).
Ecology's comments are based upon the information provided. As such, they do not constitute an
exhaustive list of the various authorizations that must be obtained or legal requirements that must be
fulfilled in order to carry out [he proposed action.
If you have any questions or would like to respond [o these comments please contact the appropriate
reviewing staff listed above.
Department of Ecology
Southwest Regional Office
(DN: The Hutch Subdivision)
ce: Charles Gilman, HQ/WQ
Margaret Hill, WQ
Yelm Property Development (Applicant)