DDW-2024-013403

November 20, 2024
Zachary Renstrom, Manager
Washington County Water Conservancy District
Washington County WCD – Cottam
533 East Waterworks Drive
St. George, Utah 84770
Subject:Plan Approval, Quail to Cottam Pump Stations (PF001 and PF002) including a 100,000 gallon holding tank (ST004) and two Pressure Tanks (HD001 and HD002);
Washington County WCD – Quail Lake, System #27094, File #17564
Dear Zachary Renstrom:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Quail to Cottam Pump Station Project from Aaron Anderson, Bowen
Collins & Associates, on October 4, 2024. A meeting was held on October 31, 2023, to review the project and plan review comments were given at that time. Revised plans and a response
to the comments were sent to the Division on November 12, 2023.This project has met the conditions for receiving a plan approval.
Our understanding of the project is to construct two pump stations that will deliver water from the Washington County WCD-Quail Lake (27094) system to the Washington County WCD - Cottam
(27071) water system. This consecutive connection can also gravity feed water back from the Cottam water system to the Quail Lake water system if needed. The facilities associated with
this project are described below.
Quail to Cottam Pump Station @ Quail (PF001)
The pump station includes a building that houses two 150 horsepower vertical turbine pumps that can each deliver 750 gallons per minute (gpm) of water and two 300 horsepower vertical
turbine pumps that can each deliver 1,500 gpm of water for a total pump station capacity of 4,500 gpm. Water will be drawn from any of the tanks at the Quail Lake treatment plant (ST001,
ST002, and ST003). The pump station has been sized to eventually increase the size of the pumps to a total capacity of 6,000 gpm. This pump station will deliver water to the 100K tank
(ST004) at the Quail at Cottam Pump Station at Leeds.
Quail to Cottam 2 HD Tanks @ Quail (HD001)
Two 1,000 gallon pressure tanks will be located in the Quail to Cottam Pump Station at Quail building. The design includes the ability to add a third 1,000 gallon pressure tank. These
pressure tanks are intended to hold pressure in the pipeline for service connections along the pipeline between the Quail Lake treatment plant and the Leeds Pump Station 100K Tank.
Quail to Cottam Pump Station @ Leeds (PF002)
The pump station includes a building that houses two 150 horsepower vertical turbine pumps that can each deliver 750 gallons per minute (gpm) of water and two 300 horsepower vertical
turbine pumps that can each deliver 1,500 gpm of water for a total pump station capacity of 4,500 gpm. Water will be drawn from Quail to Cottam Pump Station at Leeds 100K Tank. The
pump station has been sized to eventually increase the size of the pumps to a total capacity of 6,000 gpm. This pump station will deliver water to the Washington County WCD - Cottam
system (27071) Cottam 500K tank (ST001) and the Cottam 3MG Tank (ST0002).
Quail to Cottam 2 HD Tanks @ Leeds (HD002)
Two 1,000 gallon pressure tanks will be located in the Quail to Cottam Pump Station at Leeds building. The design includes the ability to add a third 1,000 gallon pressure tank These
pressure tanks are intended to hold pressure in the pipeline for service connections along the pipeline between the Quail to Cottam Pump Station at Leeds and the two Cottam tanks.
Leeds Pump Station 100K Tank (ST004)
This is a 100,000 gallon reinforced concrete tank that will receive water from the Quail to Cottam Pump Station at Quail (PF001) and allows the Quail to Cottam Pump Station at Leeds
to draw water from it.
We have completed our review of the plans and specifications, stamped, and signed byAaron Anderson, P.E., dated November 5, 2024, and find they basically comply with the applicable portions
of Utah’s Administrative Rules for Public Drinking Water Systems in R309. On this basis, the plans for the Quail to Cottam Pump Station Project are hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before these facilities may be put in service. A checklist outlining the items required
for operating permit issuance is enclosed for your information.Approvals or permits from the local authority or the county may be necessary before beginning construction of this project.
As the project proceeds, notice of any changes in the approved design, as well as any change affecting the quantity or quality of the delivered water, must be submitted to the Division.
We may also conduct interim and final inspections of this project. Please notify us when actual construction begins so that these inspections can be scheduled.
This approval must be renewed if construction has not begun or if substantial equipment has not been ordered within one year of the date of this letter.
If you have any questions regarding this approval, please contact J. Paul Wright, P.E., DEQ Southwest District office, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
JPW/mrn/mdbEnclosures –Operating Permit Checklistcc:Jeremy Roberts, Southwest Utah Public Health Dept., [e-mail] Anderson, P.E., Bowen Collins & Associates, [e-mail]
Renstrom, Washington County WCD, [e-mail] Johnson, Washington County WCD, [e-mail] Jessop, Washington County WCD, [e-mail] Martinez, Division of Drinking
Water, [e-mail]. Paul Wright, P.E., DEQ Southwest District Engineer, [e-mail] 27094 17564 PA
Utah Division of Drinking Water ― Checklist for Issuing Operating PermitsWater System Name:System Number: Project Description:File Number:
Items 1 through 8 below must be submitted to the Division and found to be acceptable prior to operating permit issuance (unless a water line project meets the requirements of R309-500-7
and is not required to obtain an Operating Permit).
Distribution lines (not including in-line booster pump stations) requiring Plan Approval may be placed into service prior to submitting all of the following items and receipt of Operating
Permit if the water system has received items 1 and 4 below.☐1.Certification of Rule Conformance by a professional engineer (P.E.) that all conditions of Plan Approval were accomplished,
and if applicable, changes made during construction were in conformance with rules R309-500 through 550☐2.As-built or record drawings incorporating all changes to approved plans and
specifications (unless no changes were made to the previously approved plans during construction)☐3.Confirmation that as-built or record drawings have been received by the water system☐4.Satisfactory
bacteriological samples as evidence of proper disinfection and flushing in accordance with the appropriate ANSI/AWWA standards:
☐ANSI/AWWA C651-14 AWWA Standard for Disinfecting Water MainsTwo consecutive sample sets at least 16 hours apart, none positive (e.g., every 1,200 feet, end-of-line, each branch)☐ANSI/AWWA
C652-11 AWWA Standard for Disinfection of Water-Storage FacilitiesOne or more samples, none positive☐ANSI/AWWA C653-13 AWWA Standard for Disinfection of Water Treatment PlantsTwo consecutive
samples per unit, none positive, no less than 30 minutes apart☐ANSI/AWWA C654-13 AWWA Standard for Disinfection of WellsTwo consecutive samples, none positive, no less than 30 minutes
apart☐5.Water quality data, where appropriate [For example, include raw and finished water data that demonstrate satisfactory performance of the treatment facility; sample should be
taken from a storage tank for residual volatile organic compounds after tank interior re-coating; etc.]☐6.If applicable, all other documentation that may have been required during the

plan review process☐7.If applicable, confirmation that the water system owner has received the O&M manual for the new facility☐8.If applicable, location data of new storage tank, treatment
facility, or source