DDW-2025-002260

March 10, 2025
Reed Price
Orem City
1450 West 550 North
Orem, Utah 84057-2800
Subject:Plan Approval, Well Equipping, Well #10 (WS013); Well #10 Chlorinator (TP013) and Heritage Park Booster Pump Station (PF007);Orem City, System #25020, File #19280
Dear Reed Price:The Division of Drinking Water (the Division) received the plans and specifications for equipping Well #10, installing Well #10 chlorinator,and installing the Heritage
Park booster pump station from your consultant, Braden Vance, and Epic Engineering on February 7, 2025. The Division issued Plan Approval for drilling Well #10 (WS013) on October 18,
2022. Review comments were sent on February 18, 2025; responses were received on March 4, 2025.
The letter includes the following sections and addenda:

1.Project Summary forWell #10 Chlorinator (TP013)    
2. Plan Approval for Well #10 Chlorinator (TP013)
3.Operating Permit Checklist 
4.FutureMonitoring and Reporting Requirements (Addendum 1)
Our understanding of the project includes the following:
Construction of a 12,000 gallon per minute (gpm) culinary water booster pump station. Work includes a new masonry building, vertical turbine pump and motors w/ pump cans, pump discharge
and pressure relief piping, in-room overhead crane within booster pump station, site piping, heating and ventilation, site work - both on the direct booster pump station site, tying
the booster station site into the adjacent tank site, and electrical.
Construction of a groundwater well pump station including a concrete masonry unit (CMU) building, vertical turbine pump and motors w/pump can, pump suction and discharge piping, heating
and ventilation, electrical, and chlorine injection system. The well will be equipped with a 4,000 gpm vertical turbine pump and a 450 horsepower (HP) motor. The pump setting depth is
350 feet below ground surface.
The Well #10, Well #10 chlorinator, and Heritage Park booster station are identified as WS013, TP013, and PF007, respectively, in the Division’s database.
The plan review of the proposed Well #10 chlorinator (TP013)has been completed according to the following:
The proposed Well #10 chlorinator (TP013) is a gas chlorinator. The brand and model number is Evoqua / Wallace & Tiernan S10K Sonic Chlorinator or approved equal. 
This chlorinator will add chlorine to the water from distribution and Well #10 (WS013) on the header within the Heritage Park booster pump station (PF007). The water is chlorinated before
entering the Heritage Park Tank (ST008).
This chlorinator is intended to provide secondary disinfection in the distribution system. 
The proposed gas chlorine for disinfection meets the ANSI/NSF 60 standard.
The proposed design target dose of 0.8 mg/L or ppm (measured as free chlorine) is based on a typical flow of 4,000 gallons per minute (gpm) from Well #10 (WS013).
An automatic flow-paced control will adjust the chlorine dose.
The Point of Entry (POE) sampling location will be a continuous chlorine analyzer on the Heritage Park Tank (ST008) outlet. A continuous chlorine analyzer will also be installed on the
Heritage Park Tank (ST008) inlet.
We have received the following information for Well #10 equipping (WS013), Well #10 chlorinator (TP013), and Heritage Park booster pump Station (PF007):
Technical Memorandum - Heritage Park 10 MG Tank - Pipe & Pump Station Phasing
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.
Chlorinator design/plans/specs.
Plans and specification for the booster pump station.
We have completed our review of the plans and specifications, stamped and signed by Jeremy Dye, P. E. and Jacob K. Nielsen, P.E.,and dated February 4, 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 Well #10 Equipping (WS013) and Pump Station (PF007) plans are
hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before Well #10 (WS013), Well #10 chlorinator (TP013) and Heritage Park booster pump
Station (PF007) 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.
Secondary Disinfection Requirements
The Orem City water systemis not required to disinfect the Well #10 (WS013) based on bacteriological source sample results currently available. The water system proposes to electively
install the Well #10 chlorinator (TP013) to provide a detectable disinfectant residual in the distribution system for secondary disinfection.

The plan review of the proposed Well #10 chlorinator (TP013) is based on providing secondary disinfection. When this chlorinator is installed and placed in operation after the Operating
Permit issuance, the Orem City water system will be required to demonstrate ongoing compliance with the secondary disinfection requirements that are outlined in Addendum 1 to this letter.
The Division shall be informed by telephone within 8 hours by a water supplier ofthe malfunction of any disinfection facility such that a detectable residual cannot be maintained at
all points in the distribution system per R309-105-18(1)(a).
Please be aware if Well #10 (WS013) is found to requireadditionaldisinfection in the future per R309-200-5(7)(a)(i), further regulations will apply. For example, if primary disinfection
is required this will include submitting disinfection CT information showing compliance with 4-log virus inactivation in accordance with the Ground Water Rule in R309-215-16.
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 ManagerEnclosures ─ Well Approval Checklist; Operating Permit ChecklistCMM/mrn/mdbcc:Daymon Swensen, Utah County Health Department, [e-mail]
Vance, Epic Engineering, [e-mail] Walker, Epic Engineering, [e-mail]
Jacob Nielsen, HAL Engineers, [e-mail]
Quinn Fenton, Orem City, [e-mail]
Reed Price, Orem City, [e-mail]
Chris Martin, P.E., Division of Drinking Water, [e-mail]
Luke Treutel, Division of Drinking Water, [e-mail] (disinfection & DBP)
David Kruse, Division of Drinking Water, [e-mail] (arsenic, inorganics, organics, NO3, rads)CMartin 25020 19280 WS013 TP013 PF007 PA Division 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
Addendum 1
Future Elective Monitoring and Reporting Requirements
Chlorine Monitoring & Reporting Requirements
The water system will be required to meet elective disinfection requirements once this facility is installed and operating. As a part of these requirements, the water system will need
to continuously maintain a minimum free chlorine residual at each chlorinator Point of Entry (POE) into the system and demonstrate a detectable chlorine residual in the distribution
system.

Elective Disinfection Requirements and Reporting
Chlorine Residual ‒ Point of Entry (POE) to Distribution System
The POE sampling location will be identified in the Division’s database. The location will be identified during the operating permit process. Maintain a minimum of 0.2 mg/L residual
(measured as free chlorine) at the POE sampling location. [R309-215-16(3)(b)(iii)(A)(I) and (II)]
The chlorine residual concentration measured at the POE sampling location shall not exceed the maximum residual disinfectant level (MRDL) of 4.0 mg/L (measured as free chlorine). [R309-200-5(3)(c)(iv)]Record
and report the lowest daily value of chlorine residual measured as free chlorine at the POE sampling location (EP013). [R309-215-10(1)]Our records show that your water system serves
98,129 people. Please be aware that R309-215-16(3)(b)(iii)(A)(I) requires water systems serving greater than 3,300 people to continuously monitor the POE chlorine residuals. Therefore,
an online analyzer to continuously monitor the POE chlorine residuals entering the distribution system will be needed.
Chlorine Residual ‒ Distribution System (DS001)
This water system must maintain a detectable residualthroughout the distribution system. It is recommended to maintain the chlorine residual above 0.1 ppm in the distribution system.
[R309-520-5]
The chlorine residual measured in the distribution system shall not exceed the maximum residual disinfectant level (MRDL) of 4.0 mg/L (measured as free chlorine). [R309-200-5(3)(c)(iv)]
This water system must take a minimum of three (3) chlorine residual samples per weekat varying locations throughout its distribution system (DS001). [R309-105-10(1)(c)]
Distribution system chlorine residuals must be taken in conjunction with total coliform sampling. [R309-215-10(3)]
Disinfection Report Submission
To demonstrate ongoing compliance with elective disinfection requirements, the water system must complete monthly operational reports for each active chlorinator using a template approved
by the Division.
The monthly operational reports are submitted quarterly. The reports are due to the Division by the 10th day following the end of each reporting quarter (i.e., January 10th, April 10th,
July 10th and October 10th). The reports can be submitted by hardcopy, fax, or by uploading them to the Division’s chlorine residual reporting form which can be found at MRDL.utah.gov.
Please contact Luke Treutel at [phone] or [e-mail] to schedule training regarding proper reporting.
In addition to monthly disinfection reporting, this water system must submit the monthly average of chlorine residual samples taken in the distribution system. Distribution system chlorine
residual monitoring results are due quarterly by the same compliance dates as the monthly disinfection report and can be submitted via an online form found at mrdl.utah.gov.
Records must be maintained for a minimum of 5 years. [R309-105-17(1)]