DDW-2024-013263

November 13, 2024
Darren Hess
Weber Basin - Summit
2837 UT-193
Layton, Utah 84041
Subject:Plan Approval, WCD Highway 224 Interconnect and Exception to R309-550-7 Minimum Separation Requirements, UTAH22147 Distribution System (DS001);
Weber Basin - Summit, System #22147, File #16874
Dear Darren Hess:The Division of Drinking Water (the Division) received the plans and specifications for the proposed WCD Highway 224 Interconnection from your consultant Jon Oldham,
P.E. of Bowen Collins and Associates on October 25, 2024. This project has met the conditions for receiving a plan approval.
On October 25, 2024, the Division of Drinking Water (the Division) also received your request for an exception to Rule R309-550-7, Separation of Water Mains and Transmission Lines from
Sewers and Other Pollution Sources for the interconnect project. This rule states specifically that the horizontal distance between pressure water mains and sanitary sewer lines shall
be at least ten feet and that where a main and a sewer line must cross, the water main shall be at least 18 inches above the sewer line.
Plan Approval
Our understanding of the project is to construct a one-way interconnection between the Park City Water System (UTAH22011) and the Summit Water Distribution Company (UTAH22059). The pipeline
will be owned by the Weber Basin - Summit (UTAH22147) water system. The interconnection will provide an approximate additional 2,400 gallons per minute conveyance capacity from the Park
City Water System to the Summit Water Distribution Company. This project includes approximately 200 linear feet of 12-inch diameter and 16-inch diameter PVC pipe and approximately 11,620
linear feet of 18-inch diameter HDPE pipe, with all appropriate appurtenances and SCADA connectivity. The pipeline will have three water crossings that are designed to be isolated with
sample taps along the length of the pipeline. There will be no connections on the new pipeline other than to Park City Water System and Summit Water Distribution Company.
We have completed our review of the plans and specifications, stamped, and signed by Jon Oldham, P.E., dated October 25, 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 WCD Highway 224 Interconnectionare hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before the water line may be put in service. A checklist outlining the items required
for operating permit issuance is enclosed for your informationApprovals or permits from the local authority or the county may be necessary before beginning construction of this project.
As the project proceeds, a 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.
Exception to R309-550(7) – Minimum Separation Requirements
The basis for your request for an exception to R309-550-7 is that due to existing sanitary sewer depths, the water line will need to cross below at one location. You propose that burying
the new 18-inch diameter pipeline at least 18-inches below the existing sewer line will provide equivalent protection for public health to meet the intent of the rule. The new 18-inch
diameter HDPE pipe will be butt fused under the sewer crossing. Due to the butt fusing gaskets are not required and the pipeline is considered restrained, reducing the risks of the water
line leaking.
On this basis, an exception to R309-550-7, Separation of Water Mains and Transmission Lines from Sewers and Other Pollution Sources, is hereby granted for the water line at approximately
Station 112+12.This exception may be rescinded any time if new evidence indicates that the conditions of this exception are no longer being met or a public health risk exists due to
this exception.
Please maintain a copy of this letter with your permanent records for future reference.
If you have any questions regarding this approval, please contact Dani Zebelean, P.E., of this office, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
DZ/mrn/mdbEnclosures –Operating Permit ChecklistWater/Sewer Separation - Exception Request Spreadsheetcc:Nathan Brooks, Summit County Health Department, [e-mail] Oldham,
Bowen Collins and Associates, [e-mail] Hess, Weber Basin, [e-mail] McAffee, Park City, [e-mail] Holley, Park City, [e-mail]
Lloyd, Park City, [e-mail] Meier, Weber Basin, [e-mail] Cheney, Summit Water, [e-mail] Folkman, Summit Water, [e-mail]
McFarland, Weber Basin, [e-mail] Zebelean, Division of Drinking Water, [e-mail]
Julie Cobleigh, Division of Drinking Water, [e-mail]
Nagendra Dev, Division of Drinking Water, [e-mail] 22147 16874 PA
Utah Division of Drinking Water ― Checklist for Issuing Operating PermitsWater System Name:Weber Basin - SummitSystem Number: 22147Project Description: WCD HWY 224 Interconnect
File Number: 16874
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