DDW-2025-009653

October 15, 2025
Sent via Email Only
Joyce & William Hogan
South Rim Water System
PO Box 244
South Rim, UT 84071
[e-mail]
Subject:Plan Approval, South Rim Tank (ST002);
South Rim Water System, System #23079, File #25148
DearJoyce and William:The Division of Drinking Water (the Division) received the plans and specifications for the proposed South Rim Tank (ST002) project from your consultant, Robert
Rousselle, P.E., and Ensign Engineering on September 29, 2025. Written review comments were provided to your consultant on October 8, 2025. The Division received the response to comments
on October 10, 2025. This project has met the conditions for receiving a plan approval.
Our understanding of the project includes the following:
South Rim Water System is constructing a new 1.0 million gallon (MG) drinking water storage tank. This tank will be for future connections and includes a partially buried, reinforced,
concrete storage tank, valve vault, and tank outlet structure.
The proposed 1.0 MG tank will have an inside diameter of 85-feet with an overflow elevation of 5,488 feet above mean sea level. The finished floor elevation will be at an elevation of
5,463 feet above mean sea level. The tank overflow and drain are combined.
The tank will be bid to allow alternates for an AWWA D110 Type III Pretensioned Concrete Tank and an AWWA D115 Post Tensioned Concrete Tank.
The booster pump station with a pressure-reducing valve will pump water up to this tank will be submitted separately to the Division along with a hydraulic modeling report. The water
transmission and supply water line will be designed by Ensign Engineering under a separate submittal to the Division.
This project will add approximately 759 ERCs at full build-out.
The South Rim Tank is intended to provide fire flow storage of 180,000 gallons or 1,500 gpm for 2 hours.
The South Rim Tank is identified as ST002 in the Division’s database.
We have completed our review of the plans and specifications, stamped and signed byRobert Rousselle, P.E., dated September 26, 2025,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 South Rim Tank (ST002)are hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before South Rim Tank (ST002) 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 Chris Martin, P.E., of this office, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
CMM/mrn/mdbEnclosures –Operating Permit Checklistcc:Taylor Palmer, Tooele County Health Department, [e-mail] Tolbert, Tooele County Health Department, [e-mail]
Rousselle, Ensign Engineering, [e-mail] & William Hogan, South Rim Water System, [e-mail] Martin, P.E., Division of Drinking Water, [e-mail]
Huffman, Stockton Town, [e-mail] 23079 25148 ST002 - South Rim Tank
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