DDW-2025-006650

July 25, 2025
Sent via Email Only
Mr. Scott Taylor
St. George City Water Department
175 East 200 North
St. George City, Utah 84770
[e-mail]
Subject:Plan Approval, Tonaquint Heights Pump Station (PF017) ;St. George City, System #27015, File #21228
Dear Scott Taylor:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Tonaquint Heights Pump Station project from Logan Blake, DSG Engineering,
on April 17, 2025. Written review comments were provided to Kade Bringhurst, and Logan on May 12, 2025. The Division received the revised plans and a response to comments on July 14,
2025 . This project has met the conditions for receiving a plan approval.
Our understanding of the project is to construct a booster pump station to maintain fire flow and pressure requirements in the Tonaquint Heights Subdivision in St. George City. The pump
station will include 2- 50 HP horizontal centrifugal pumps that can pump 1,000 gallons per minute (gpm) at 120 feet of total dynamic head (TDH); 2- 25 HP horizontal centrifugal pumps
that can pump 500 gpm at 120 feet TDH; and 1- 7.5 HP vertical centrifugal pump that can pump 150 gpm at 120 feet TDH. The pump station includes a new pre-manufactured building, appurtenances,
and piping to connect to the existing distribution system. All of these pumps will be equipped with variable frequency drives for varying flow conditions. The Tonaquint Height Pump Station
will be known as PF017 in the Division’s database.
We have completed our review of the plans and specifications, stamped and signed byLogan Blake, P.E., dated April 17, 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 the Tonaquint Height Pump Station are hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before Tonaquint Height Pump Station 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 J. Paul Wright, P.E., DEQ Southwest District Office, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
JPW/mrn/mdbEnclosures –Operating Permit Checklistcc:Logan Blake, P.E., DSG Engineering, [e-mail] Bringhurst, St. George City, [e-mail] Roberts,
Southwest Utah Public Health Dept., [e-mail]. Paul Wright, P.E., DEQ Southwest District Office, [e-mail] 27015 21228 PF017 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