DDW-2025-005383

June 12, 2025
Sent via Email Only
Zachary Renstrom, Manager
Washington County Water Conservancy District
Washington County WCD – Cottam
533 East Waterworks Drive
St. George, Utah 84770
[e-mail]
Subject:Operating Permit, Cottam to Casa 14-inch Diameter Culinary Transmission Line Project; Washington County WCD – Cottam, System #27071, File #16079
Dear Zachary Renstrom:The Division of Drinking Water (the Division) received a request for an Operating Permit for the Cottam to Casa 14-inch Culinary Transmission Line Project from
Rhett Beazer, P.E., Alpha Engineering, on June 10, 2025. Previously, the Division received the plans and specifications on August 12, 2024. The Division issued Plan Approval for this
project on September 4, 2024.
Our understanding of the project was the installation of approximately 6,500 feet of 14-inch diameter ductile iron pipe (DIP, 250 psi) in Mills Lane (I-15 frontage road), installing
425 feet of 30-inch diameter steel casing under I-15 using trenchless methods, and tie-ins to an existing 14-inch diameter water line from the Cottam Wells, an 8-inch diameter water
line in Mills Lane, and an existing 12-inch diameter water line in Old Highway 91 north of Leeds. This water line project included all appurtenant valves and fittings.
We have received the following information for the Cottam to Casa 14-inch Diameter Culinary Transmission Line:
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 Cottam to Casa 14-inch Diameter Culinary Transmission Line
is hereby issued as constituted by this letter. You may now place this water line and related appurtenances 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, P.E., Permitting
and Engineering Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
JPW/mrn/mdbcc:Jeremy Roberts, Southwest Utah Public Health Dept., [e-mail] Gardner, P.E., Alpha Engineering, [e-mail] Beazer, P.E., Alpha
Engineering, [e-mail] Bundy, Washington County WCD, [e-mail]. Paul Wright, P.E., DEQ Southwest District Engineer, [e-mail]
Jennifer Yee, Division of Drinking Water, [e-mail]
PWright 27071 16079 OP