DDW-2025-001439

February 10, 2025
Justun Edwards
Herriman City Municipal Water Department
5355 West Herriman Main Street
Herriman, Utah 84096
Subject:Operating Permit, Arnold Hollow Spring (WS003) Improvements; Herriman City Municipal Water Department, System #18157, File #11956
Dear Mr. Edwards:The Division of Drinking Water (the Division) received your request for Permanent Operating Permit for Arnold Hollow Spring (WS003) Improvements from your consultant,
J. Lance Nielsen, P.E., of Hansen, Allen and Luce, Inc. on January 17, 2025. The Division issued Plan Approval for this project on January 24, 2020, and TOP was issued on August 050,
2020 Our understanding of the project is the installation of approximately 885 linear feet of new 8-inch diameter PVC perforated spring collection lines at the Arnold Hollow Spring (identified
as WS003 in the Division’s database). Arnold Hollow Spring is an existing, active water source located off Rose Canyon Road in Herriman, Utah. The work also required the installation
of a clay barrier and geo- membrane liner. The project connected to an existing junction manhole and added a new meter vault for permanent flow measurement.Temporary Operating Permit
that was issued for Arnold Hollow Spring (WS003) improvement required three (3) years of monitoring of the spring flow before a permanent operating permit could be issued. This water
system was required to submit the spring flow data and obtain a permanent Operating Permit by December 31, 2024.Hansen Allen & Luce Inc has provided three years (2021, 2022 and 2024)
of complete spring flow data; the 25th percentile of these flow data comes to be 47.9 gallons per minute (gpm).The average yield of Arnold Hollow Spring (WS003) of 47.9 gpm is based
on the spring flow information we received. This yield is the basis for determining the maximum number of connections that the Arnold Hollow Spring can serve.Based on the requirement
of flow data needed as mentioned on August 05, 2020, Temporary Operating Permit letter, we have determined that all conditions of issuing an Operating Permit have been accomplished.
On this basis, an Operating Permit for Arnold Hollow Spring (WS003) Improvement is hereby issued as constituted by this letter.
We had received the following information for Arnold Spring Improvements during TOP permit process:
Design engineer’s statement of conformance with approval conditions
Spring source chemical analyses of the spring water
Documentation of valid water right
As-built or record drawings
Satisfactory bacteriological results as evidence of proper disinfection and flushing
We have determined that all conditions of issuing an Operating Permit have been accomplished. On this basis, an Operating Permit for Arnold Hollow Spring (WS003) Improvement is hereby
issued as constituted by this letter. You may now place the Spring 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 Nagendra Dev, P.E., of this office, at [phone], or Michael Newberry, P.E., Permitting and Engineering
Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
ND/mrn/klmcc:Matthias Neville, Salt Lake Valley Health Department, [e-mail] Edwards, Herriman City Municipal Water Department, [e-mail] Bowers,
Herriman City Municipal Water Department, [e-mail]
J. Lance Nielsen, P.E., Hansen Allen and Luce,[e-mail]
Jennifer Yee, Division of Drinking Water, [e-mail]
Deidre Beck, P.G., Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]
Nagendra Dev, P.E., Division of Drinking Water, [e-mail]
Jennifer Yee, Division of Drinking Water, [e-mail] Spring (D)[Right click. Select “Update Field” to update file name]