DDW-2025-000970

January 29, 2025
Kevin Lee Anderson
Cedar Hills Town
10246 North Canyon Road
Cedar Hills, Utah 84062
Subject:Operating Permit, Harvey Well Chlorinator (TP002); Cedar Hills Town Water System, System #25137, File #13473
Dear Kevin Anderson:
The Division of Drinking Water (the Division) received a request for an Operating Permit for Harvey Well Chlorinator from your consultant, Mike Chambers, P.E. and HAL Engineers on January
27, 2025. The Division issued Plan Approval for this project on February 27, 2024. Division staff conducted a final inspection of this project on November 26, 2024. This project has
met all conditions for receiving an operating permit.
Our understanding of the project includes the following:
The Cedar Hills Town water system (the System) received a letter from the Division on May 24, 2022, requiring disinfection to secondary requirements for the entire distribution system.

Primary disinfection may be required if future bacteriological sampling results from system sources meet criteria established in the Division’s Policy for Vulnerable Source Assessment
and Determination Guidance Manual.
A chlorination facility has been installed with a granted Operating Permit at the other two sources, the American Fork consecutive connection (WS001) and Cottonwood Well (WS003).
The installation of the Harvey Well Chlorinator (identified in the Division’s database as TP002) completes the requirement to provide secondary disinfection throughout the distribution
system.
The liquid feed system includes bulk and day storage tanks. The bulk and day tanks have 150 and 22 gallons of capacity, respectively. The bulk tank is double walled while the day tank
has a spill containment deck. Each tank has a leak detector unit. The chlorine room has an exhaust fan and an emergency shower.
The project includes a backup dosing pump and diesel generator.
The Harvey Well Chlorinator (TP002) has been completed according to the following:
The proposed Harvey Well Chlorinator (TP002) is adding sodium hypochlorite solution of 12.5% concentration. The Grundfos DDA dosing pump (model DDA 7.5-16 FCM) is specified as the chemical
dosing pump capable of feeding greater than 2 ppm at peak day demand.
This chlorinator will add chlorine to the water from the Harvey Well (WS002).
This chlorinator is intended to provide secondary disinfection in the distribution system.
The chlorinated water will go to the distribution system directly.
The proposed 12.5% sodium hypochlorite for disinfection meets the ANSI/NSF 60 standard.
The proposed design target dose of 0.75 mg/L or ppm (measured as free chlorine) is based on a typical flow of 1,200 gallons per minute (gpm) from the Harvey Well (WS002).
The chlorine dose will be adjusted by an automatic flow-paced control from the Harvey Well (WS002).
The Point of Entry (POE) sampling location will be a continuous analyzer pulling from the well pump discharge piping directly after chlorine injection. The chlorine analyzer specified
is a Kuntze model Krypton Multi with Argon Stabiflow and Neon Controller.
We have received the following information for Harvey Well Chlorinator (TP002):
Certification of Rule Conformance with plan approval conditions by a professional engineer.
As-built or record drawings.
Satisfactory bacteriological results as evidence of proper disinfection and flushing.
Evidence of operation and maintenance manual delivery.
We have determined that all conditions for issuing an operating permit have been met. On this basis, an Operating Permit for Harvey Well Chlorinator (TP002) is hereby issued as constituted
by this letter. You may now place Harvey Well Chlorinator (TP002) in service in your water system.
Please maintain a copy of this letter with your permanent records for future reference.
Secondary Disinfection Requirements
The Division has determined that the Cedar Hills Town Water System must provide continuous disinfection to maintain detectable chlorine residuals throughout the distribution system.
The Harvey Well Chlorinator (TP002) is the last step to providing a detectable disinfectant residual in the distribution system for secondary disinfection.
Please be aware that, if any water source of the Cedar Hills Town Water System is found to require primary disinfection in the future per R309-200-5(7)(a)(i), additional regulations
will apply. 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.
The Cedar Hills Town Water Systemis required to demonstrate ongoing compliance with the secondary disinfection requirements outlined in Addendum 1 of this letter as long as the Harvey
Well Chlorinator (TP002)is in operation.
Monitoring and ReportingIssuance of this Operating Permit changes your water system’s monitoring and reporting requirements. The staff of the Rules Section will follow up to provide
an updated monitoring schedule to you. Please contact Mark Berger, Water Quality/Monitoring and Standards Manager at [phone] for questions regarding the monitoring and reporting
requirements for your water system.
There may be new changes in monitoring and reporting requirements in the future as the Division continues to improve the disinfection monitoring and reporting practices. Failure to adhere
to required monitoring and reporting will result in violations and the assessment of IPS points.
If you have any questions regarding this Operating Permit, please contact Chris Martin, P.E., of this office, at [phone], or Michael Newberry, P.E., Permitting and Engineering
Support Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
CMM/mrn/mdb
Addendum 1 - Secondary Monitoring and Reporting Requirementscc:Daymon Swensen, Utah County Health Department, [e-mail] Chambers, P.E., HAL Engineers, [e-mail]

Steele, P.E., HAL Engineers, [e-mail] Lee Anderson, Cedar Hills Town, [e-mail] Aston, Cedar Hills Town, [e-mail] Martin, P.E., Division
of Drinking Water, [e-mail] Arns, Division of Drinking Water, [e-mail] Treutel, Division of Drinking Water, [e-mail] Federico, Division of Drinking
Water, [e-mail] Yee, Division of Drinking Water, [e-mail] 25137 13473 TP002 OP - Harvey Well Chlorination System
Addendum 1 
 Secondary Monitoring and Reporting Requirements 
Chlorine Monitoring & Reporting Requirements
The water system is required to meet secondary disinfection requirements. As a part of these requirements, the water system is required 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. The Harvey Well Chlorinator (TP002) is based
on providing secondary disinfection. Cedar Hills Town Water System will be required to demonstrate ongoing compliance with the following secondary disinfection requirements:
Secondary Disinfection Requirements and Reporting 
Chlorine Residual ‒ Point of Entry (POE) to Distribution System
The POE sampling location is identified as EP002 in the Division’s database. This location has been identified as the effluent side of ST004. 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 Harvey Well Chlorinator (TP002)POE sampling location (EP002). [R309-210- 8(3)(a)(ii)]
Our records show that your water system serves 10,015 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 is needed.
Chlorine Residual ‒ Distribution System (DS001)
This water system must maintain a detectable residual throughout 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 week at 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 secondary 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)]