DDW-2025-000001

January 2, 2025
Ben Nielson
Oak City Water System
P.O. Box 217
Oak City, Utah 84649
Subject:Plan Approval, Aquifer Storage Recharge Improvements, Well #1 (WS003);
Oak City, System #14010, File #18125
Dear Ben Nielson:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Aquifer Storage Recharge (ASR) Improvement Project from your consultant,
James Saunders with Jones & DeMille Engineering on December 3, 2024. Written review comments were provided to your consultant on December 3, 2024. The Division received the revised plans
and specifications on December 26, 2024. This project now meets the conditions for receiving plan approval.
Our understanding of the project is that Oak City (the City) has two existing spring sources that provide water all year long to the drinking water system. During times of lower demand,
typically during the winter months, the spring water overflows the water storage tanks into a surface water ditch and doesn’t provide any benefit to the City. This project will install
control equipment and new plumbing to allow excess spring water to be directed back into the City’s existing Well #1 (WS003) to provide direct recharge to the aquifer. Automatically
controlled valving will be installed in the existing well house to accommodate the injection of the excess spring water. The excess water that will be injected will be taken from the
distribution system. Water level monitoring equipment in the storage tanks will control when the water is injected.
This project requires an ASR permit from the Division of Water Quality, which the City is obtaining in conjunction with this Division of Drinking Water plan review and approval.
We have completed our review of the plans and specifications, stamped, and signed by James Saunders, P.E., dated December 26, 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 ASR Projectare hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before the ASR equipment 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 John Chartier, P.E., DEQ Central District Engineer, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
JLC/mrn/mdbEnclosures –Operating Permit Checklistcc:Eric Larsen, Central Utah Public Health, [e-mail] James Saunders, P.E., Jones & DeMille Engineering, [e-mail]
Ben Nielson, Oak City Water System, [e-mail] John Chartier, P.E., DEQ Central District Engineer, [e-mail]
Porter Henze, Division of Water Quality, [e-mail] jchartier 14010 18125 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