DDW-2024-013383

November 19, 2024
Lester Carl Dalton
Washington City
1305 East Washington Dam Road
Washington, Utah 84780
Subject:Operating Permit, Long Valley 2.5 MG Tank (ST009), Long Valley Pump Station (PF006), Transmission Line; Washington City, System #27021, File #13590
Dear Lester Dalton:The Division of Drinking Water (the Division) received a request for an Operating Permit for the Long Valley 2.5 MG Tank and Long Valley Pump Station Project from
Brittany Darnell, Sunrise Engineering on November 8, 2024. Previously, the Division received the plans and specifications on December 18, 2023. Written review comments were provided
to you and your consultant on December 20, 2023. The Division received a written response to the comments on December 21, 2023, and the final stamped revised plans and specifications
on January 19, 2024. Plan approval was issued on February 5, 2024.
Our understanding of the project is described below:
Long Valley 2.5 MG Tank
This tank is a 2.5-million-gallon reinforced concrete tank. The purpose of the tank is to support expansion and growth in the existing pressure zone by adding storage capacity. The tank
receives water through a pump station (described below) from the south part of the system using the newly installed Long Valley transmission line. The tank includes all required components
including a tank access hatch, air vent(s), overflow, outlet lines, and an inlet with a Tideflex mixing system inside the tank to ensure proper water circulation. This tank is known
as ST009 in the Division’s database. A new transmission line feeds the tank from the new pump station and consists of 2,800 linear feet of 16-inch PVC C-900 pipe.
Long Valley Pump Station
This pump station receives water from the Long Valley transmission line from the south and pumps water to the Long Valley 2.5 MG Tank. The pump station consists of two 100 HP vertical
centrifugal pumps that each have the capacity to pump 1,500 gallons per minute (gpm). The pumps are redundant and do not operate simultaneously, therefore 1,500 gpm is the pump station
capacity. This pump station is known as PF006 in the Division’s database.
We have received the following information for Long Valley 2.5 MG Tank and Long Valley Pump Station Project:
Certification of Rule Conformance with plan approval conditions by a professional engineer.
As-built or record drawings.
Satisfactory bacteriological results as evidence of proper disinfection and flushing.
Evidence of O&M manual delivery.
We have determined that all conditions for operating permit issuance have been met. On this basis, an Operating Permit for the Long Valley 2.5 MG Tank and Long Valley Pump Station Projectis
hereby issued as constituted by this letter. You may now place the Long Valley 2.5 MG Tank (ST009) and Long Valley Pump Station (PF006) in service in your water system.
Please maintain a copy of this letter with your permanent records for future reference.
If you have any questions regarding this Operating Permit, please contact J. Paul Wright, P.E., DEQ Southwest District Office at [phone], or Michael Newberry, Permitting and Engineering
Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
JPW/mrn/mdbcc:Jeremy Roberts, Southwest Utah Public Health Department, [e-mail]. Paul Wright, P.E., DEQ Southwest District Office, [e-mail] Darnell, Sunrise
Engineering, [e-mail] Shaffer, P.E., Sunrise Engineering, [e-mail] Dalton, Washington City, [e-mail]
Jennifer Yee, Division of Drinking Water, [e-mail]
PWright 27021 13590 PF006 ST009 OP