DDW-2025-003311

April 8, 2025
Zachary Renstrom, Manager
Washington County Water Conservancy District
Sand Hollow Water System
533 East Waterworks Drive
St. George, Utah 84770
Subject:Plan Approval, Well Equipping, Well Drilling, Sand Hollow Well 7 (WS020), Washington County WCD – Sand Hollow, System #27073, File #13422
Dear Zachary Renstrom:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Sand Hollow Well 7 well equipping project including well house
plans, well pump specifications, and all other required submittals from Todd Gardner, Alpha Engineering Company, on March 3, 2025. The Division issued Plan Approval for drilling for
the Sand Hollow Well 7 on June 29, 2023. Plan review comments were sent to your consultant on March 31, 2025.
Our understanding of the equipping of the Sand Hollow Well 7 (WS020) includes a vertical turbine line shaft pump with a 280 gallon per minute (gpm) capacity at 506 ft of total dynamic
head, which is where it will generally be operated. It will have a 60-horsepower motor with a variable frequency drive to be able to provide variable flow as needed. The well was pump
tested at approximately 280 gpm at which drawdown stabilized at 309 feet of drawdown. This project will also include a new well house with all required discharge valving and piping
that will connect it to all the other wells in the Sand Hollow well field.This well is identified as WS020 in the Division’s database.
We have received the following information for Sand Hollow Well 7 well equipping project:
Certification of well seal.
Well driller’s report (well log).
Aquifer drawdown test results (step drawdown test and constant-rate test).
New Source Chemical Analysis of the well water.
Plans and specifications for equipping the well.
Pump information (pump specifications, pump curve and operating point).
Well head discharge piping.
Well house design
We have completed our review of the plans and specifications, stamped and signed by Todd Gardner, P. E., and dated February 25, 2025, and found 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 equipping Sand Hollow Well 7 including the construction of a well house
is hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before Sand Hollow Well 7 may be put into service. A checklist outlining the well
approval process, including the items required for issuing an operating permit for this well is enclosed for your information. Enclosed please also find an Operating permit Checklist
for other components of this project.Approvals or permits from the local authority or 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 (385) 515‑1464.
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
JPW/mrn/mdbEnclosures─ Well Approval Checklist; Operating Permit Checklistcc:Jeremy Roberts, Southwest Utah Public Health Dept., [e-mail] Gardner, P.E., Alpha Engineering,
43 S 100 E, Suite 100, St. George, UT 84770Zachary Renstrom, Washington County WCD, [e-mail] Stout, Washington County WCD, [e-mail]. Paul Wright, P.E., DEQ Southwest
District Engineer, [e-mail] 27073 13422 WS020 Equip PADivision of Drinking WaterChecklist for New Public Drinking Water Wells
(Per Utah Administrative Code, Rule R309-515-6)
System Name:System Number:Well Name & Description:1.Approval to Drill the Well
☐Project Notification Form (PNF)
☐Preliminary Evaluation Report (PER) concurrence
☐Well drilling specifications and plans
☐Valid Start Card or authorization to drill letter from the Division of Water Rights2.Approval to Equip the Well
☐PNF (if the well drilling and well equipping are designed by different consultants)
☐Well location data
☐Certification of well seal
☐Well driller’s report (well log)
☐Aquifer drawdown test results (step drawdown test & constant-rate test) for well yield determination
☐Chemical analyses of the well water
☐Plans and specifications for equipping the well
☐Pump information (e.g., pump specifications, pump curve & operating point, motor information, etc.)
☐Well head discharge piping
☐Well house design3.Operating Permit to Introduce the Well Water
☐Documentation of valid water right(s)
☐Recorded land use agreements, or documentation that the requirements for coverage under the City/County source protection ordinance have been met
☐Design engineer’s certification of conformance with plan approval conditions
☐Design engineer’s certification of rule conformance for any deviation from approved plans
☐As-built or record drawings

☐Evidence of O&M manual delivery to system owner☐Satisfactory bacteriological results as evidence of proper flushing and disinfection
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 (every 1200 feet, end-of-line, each branch, etc.)☐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, water quality data showing MCL compliance; raw and finished water data that demonstrate satisfactory performance of the new
treatment facility.]☐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