Booster Station Resps to DOH 042808
City of Yelm
Community Development Department
105 Yelm Avenue West
P.O. Box 479
Yelm, WA 98597
April 28, 2008
Regina Grimm PE
Department of Health
Office of Drinking Water Regional Engineer
PO Box 47823
Olympia, WA 98504
Subject: City of Yelm Water System ID#99350
Forrester Heights Booster Station, ODW Project #07-1101
Response to Comment Letter Dated January 7, 2008
Dear Mrs. Grimm:
The City of Yelm is presenting a revised set of construction drawings and a project report for the above referenced project. These documents have been revised by KPFF and resubmitted
to the City of Yelm for review prior to this submittal to the Department of Health. Upon receipt of the plans and a subsequent water hammer analysis we are satisfied that all comments
from your review letter were addressed. The following is an item by item response for the 5 comments that were made in your January 7th letter to KPFF Consulting Engineers.
1. The operating sequence of the pumps has been clarified in the project report. The three larger pumps will alternate the led/lag position to equalize the run time on all the pumps.
2. The plans and report have been updated to include the remote terminal unit to connect to the City of Yelm’s Telemetry system.
3. A sample tap at the booster station, a common suction side pressure gauge and check valves on the discharge side of the pumps have been shown in the booster station design.
4. There has been an exhibit added to Appendix E of the report showing the City of Yelm’s 2002 Water Service Area. This exhibit shows the project location and the booster station location
within the project boundaries.
5. The addition of a booster pump to serve the subject portion of Yelm’s Water Service Area was not specifically identified as a project in the Yelm’s current Water System Plan, but
booster pumps are specifically identified in Chapter 7 of the Yelm Water System Plan as distribution-related projects which can be approved through the development of design and construction
standards.
The City intends that the plans for the booster pump being currently being reviewed will become the design and construction standards for both the current project as well as future
booster pumps, if needed elsewhere in the Yelm Water Service Area to maintain adopted performance standards as found in Section 3 of Chapter 7 of Yelm’s Water System Plan.
At this time I am unaware of any other outstanding comments or concerns for this water booster station proposal. After reviewing this information if you have any additional questions
or any of the responses were not completed please contact me at (360) 458-8438 or by email at jimg@ci.yelm.wa.us
Respectfully,
Jim Gibson P.E.
Community Development Department
Copy Stephanie Ray, City of Yelm
Tim Peterson, City of Yelm
Grant Beck, City of Yelm
Clint Pierpoint, KPFF
enc. 2 - Revised Booster Station Report dated March 11, 2008
2 - Revised Booster Station Construction Plan sets dated March 11, 2008
1 - Copy of January 7th DOH Comment Letter