2020.0259.PR0008 Cover_Letter_TCOMM911_Yelm_Water_Tank_09012020
September 1, 2020
City of Yelm
Department of Community and Economic Development
106 2nd Street S.E., Yelm, WA 98597
RE: Thurston County 911 Proposed WCF at Yelm Water Tank
This cover letter is provided regarding the Site Plan Review Application for WCF Permit
requested by Thurston County 911 at 901 Rhoton Rd. NW., referenced as TCOMM911 Yelm
Water Tank.
TCOMM911 is a project that will upgrade the existing, aging Thurston County emergency
system, regarding the 911 system to include enhanced communications and coordination
with/between emergency first responders – including police, fire, and emergency medical
personnel. TCOMM911 is building a modern system for the growing community of Thurston
County, that will provide coverage and reliability. The goal is to make it easier for emergency
first responders to do their essential work.
For your review, application packet materials include the following:
Site Plans/ Zoning Drawings
Photo simulations
Noise Report
NIER – FCC Compliance
Screening plans/ paint sample
Names and addresses of property owners within 300’
Map of project site with 300’ radius
The attached plans reflect the proposed TCOMM911 - Wireless Emergency Communications
Facility on the Yelm Water Tank, located in an industrial zoned area of the 7.63 acres parcel
#22719210404. The proposal includes the addition of (2) microwave antennas, (4) omni
antennas, (1) TTA unit and coaxial cables mounted on an existing 152.8’ water tank.
The proposed project will involve the addition of an equipment shelter to house ground base
equipment. The shelter measures 11’-8”x24’ and will be anchored to a concrete slab over a
stem wall foundation and, elevated 24” above grade. As you will see, for the shelter and all
other equipment, this proposal demonstrates compliance with all FEMA flood plain
requirements. Also included is a 1000-gallon propane tank mounted on a 6’x17’ concrete pad as
well as a Kohler generator, mounted on a 5’x10’ concrete pad elevated 24” above grade; for
emergency back-up power in the event of an outage.
TCOMM911 Yelm Water Tank
LDC, Inc. •Surveying • Engineering •PlanningThe proposed coaxial cables include (5) 7/8”, (1) ½” and (2) 3/8” that will route from the
equipment shelter to antennas via ice bridge and cable ladder. The proposed work will not
result any substantial change to the water tank and does not require any increase in height to
the existing structure. The proposed microwave antennas are light in color and will blend in,
virtually undetected given the height of the supporting structure. Additional screening measures
are proposed at the base of the structure, located near the shelter where a living arborvitae
screen shall provide additional camouflage.
Considerations
Proposal will not negatively impact parking, as proposal requires no parking spaces.
The project is compatible with the use of the property and surrounding properties and is
needed to advance the 911 and Emergency Communications service levels needed to
meet demand for the TCOMM911 Network.
The proposed wireless communications facility will not negatively impact the water tank
quality or surrounding area visually and equipment shall blend with the color and
functionality of the site.
The proposal complies with all applicable Federal, State, and Local laws and ordinances
including FAA and FCC.
The proposal does not include any use or activity incompatible use of an airport or
airfield in the area.
The proposal will not result in any negative impacts on the human or natural
environments since the facility is in effect a utility and provides essential first responder
WCF services and benefits.
In closing, TCOMM911 needs the proposed facility to provide adequate emergency first
responder wireless services in the City of Yelm and surrounding area.
Please feel free to call me at 253-218-9017 or email to rcardoza@ldccorp.com if you have any
questions or need more information.
Sincerely,
Rick Cardoza
Senior Project Manager
LDC, Inc
The Civil Engineering Group
20210 142nd Avenue NE
Woodinville, WA 98072