DDW-2024-006560

March 14, 2024
Brennen Russell
Moroni City
P.O. Box 870
Moroni, Utah 84646
Subject:Operating Permit, Well #4, Well #4 Chlorinator (WS008, TP008);
Moroni City, System #20013, File #12292, SRF #3F1772
Dear Brennen Russell:The Division of Drinking Water (the Division) received your request for the Operating Permit for Moroni City Well #4 (WS008) from your consultant, Jason Brimhall
with Sunrise Engineering on February 23, 2024. The Division issued Plan Approval for drilling this well on January 5, 2022, and Plan Approval for equipping this well on August 17, 2022.
Division staff conducted an onsite final inspection of this facility on March 5, 2024. Our understanding of the project is that Well #4 has been drilled to a depth of 405 feet and has
asteel production casing diameter of 12 inches. The wellhead was finished with a MAASSMidwest pitless adapter with a casing vent and a 2-inch diameter gravel refill pipe. The well has
been equipped with a 75 HP submersible pump and motor that can produce 600 gallons per minute(gpm) against 340 feet of total dynamic head. The well delivers water to the new well house
that has all the well discharge piping appurtenances and a gas chlorine disinfection system. Well#4 is identified as WS008 and the disinfection system is identified as TP008 in the Division’sdatabase.
The Well #4 Chlorinator (TP008) included in this project has been completed according to the following:
The Well #4 Chlorinator is a gas chlorinator to provide elective, secondary disinfection.
The Well #4 Chlorinator treats water from Well #4 (WS008). The gas chlorine is added to the water at the Well #4 wellhouse.
The chlorinated water then enters 500K Tank (ST003) and flows into the distribution system.
The gas chlorine used for disinfection meets the ANSI/NSF 60 standard.
A design target dose of 0.5 mg/L (ppm) of free chlorine is based on a typical flow of 600 gallons per minute (gpm) from Well #4.
The chlorine dose is adjusted automatically based on the flow rate measured by the flow meter in the Well #4 discharge piping.
Secondary Disinfection Requirements
The Moroni City Water Systemis not required to disinfect the Well #4 (WS008) waterbased on bacteriological source sample results currently available. The water systemhas electively installed
the Well #4 Chlorinator (TP008) to provide a detectable disinfectant residual in the distribution system for secondary disinfection.
Please be aware that, if any water source of the Moroni City Water Systemis 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 Moroni City Water Systemis required to demonstrate ongoing compliance with the following secondary disinfection requirements as long as the Well #4 Chlorinator (TP008)is in operation.
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)]
Take a minimum of three (3) chlorine residual samples per weekat varying locations throughout its distribution system (DS001). [R309-105-10(1)(c)]
Take distribution system chlorine residuals in conjunction with total coliform sampling. [R309-215-10(3) and (4)]
Chlorine Residual ‒ Point of Entry to Distribution System (EP008)
The Point of Entry (POE) sampling location for the Well #4 Chlorinator is a private residence located downstream of the 500K Tank (ST003) at 15 East 500 North. This POE sampling location
is identified as EP008 in the Division’s database.
Maintain a minimum of 0.2 mg/L residual (measured as free chlorine) at the POE sampling location. [R309-215-5(3) and R309-215-10(2)]
The chlorine residual 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 free chlorine residual at the Well #4 ChlorinatorPOE sampling location (EP008) a minimum of 3 days a week. [R309-210-8(3)(a)(ii)]
Monitoring and ReportingIssuance of this Operating Permit changes your water system’s monitoring and reporting requirements.
Source Monitoring Requirements
The monitoring requirements for this well are given below.
Given that Well #4 (WS008) and No 3 West Well (WS007) both flow into the 600K Tank (ST002) prior to serving any service connections, compliance source samples shall be taken at the outflow
of the 600K Tank (ST002). This sampling location has been assigned the following name and identification number: Sampling Station 07 08 (SS250). Please label all samples collected from
this location as SS250 on laboratory paperwork.
An updated monitoring schedule can be viewed any time at waterlink.utah.gov under the Water Monitoring section. Please contact David Kruse at (385)-566-7789 or [e-mail] for questions
regarding the source monitoring and reporting requirements for your water system.Facility with new requirementsAnalyte(s) Required# of samplesSampling FrequencyNext Due DateRule ReferenceSS250
Sampling Station 07 08Inorganics & Metals1Every three years01/01/2023-12/31/2025R309-205-5(3)(a)Nitrate1Yearly01/01/2024-12/31/2024R309-205-5(4)(a)Sulfate, Sodium, TDS1Every three years01/01/2023-12/31/2025R309-205-5(3)(a)Pesticides1Every
three years01/01/2023-12/31/2025R309-205-6(1)(f)Radionuclides1Quarterly04/01/2024-06/30/2024R309-205-7(1)(b)Volatile Organic Contaminants1Yearly01/01/2024-12/31/2024R309-205-6(2)
Disinfection
To demonstrate ongoing compliance with the secondary disinfection requirements, the Moroni City Water System must complete monthly disinfection reports for each active chlorinator using
a template approved by the Division.
The monthly disinfection 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 email at [e-mail]. Please contact Mark Berger 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.
Maintain monitoring records for a minimum of 5 years. [R309-105-17(1)]
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.
We have received the following information for the Well #4 and Well #4 Chlorinator:
Design engineer’s statement of conformance with approval conditions.
Evidence of O&M manual delivery.
As-built or record drawings.
Recorded land use agreements
Satisfactory bacteriological results as evidence of proper disinfection and flushing.
We have determined that all conditions of operating permit issuance have been met. On this basis, an Operating Permit for Well #4 and Well #4 Chlorinatoris hereby issued as constituted
by this letter. You may now place Well #4 (WS008) and Well #4 Chlorinator (TP008) in service in your water system.
Please maintain a copy of this letter with your permanent records for future reference.
The equipped well pump capacity of Well #4 is 600gallons per minute (gpm). The safe yield of Well #4 is rated at 820 gpm, which is calculated based on two-thirds of the constant-rate
aquifer drawdown test results at 1230 gpm. The safe yield of 820gpm is the basis for determining the maximum number of connections that Well #4 can serve. In this case, even though this
well’s safe yield is calculated to be 820 gpm, the equipped pump capacity of 600 gpm is the physical limiting factor of this well’s capacity.
Drinking Water Source Protection Requirement
The Drinking Water Source Protection (DWSP) plan was due January 5, 2023. Please submit the DWSP plan within 90 days. Failure to submit the DWSP plan will result in the deficiency SP02-
PER for active source not upgraded to full DWSP, and 25 Improvement Priority System (IPS) points will be assigned.
If you have any questions about the source protection requirements, please contact [phone] and ask for source protection staff.If this Operating Permit changes any of your monitoring
requirements, the staff of the Rules Sections will follow up to provide an updated monitoring schedule to you. Please contact Mark Berger, Rules Section Manager at [phone] for
questions regarding the monitoring and reporting requirements for your water system.
If you have any questions regarding this Operating Permit, please contact John Chartier, DEQ Central District Engineer, at [phone], or Michael Newberry, Permitting and Engineering
Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
JLC/MNN/LT/mrn/mdbcc: Eric Larsen, Central Utah Public Health Department, [e-mail] Jason Brimhall, Sunrise Engineering, Inc., [e-mail] Brennen Russell,
Moroni City, [e-mail] John L. Chartier, P.E., DEQ Central District Office, [e-mail] Mark Berger, Division of Drinking Water, [e-mail] Luke Treutel,
Division of Drinking Water, [e-mail] David Kruse, Division of Drinking Water, [e-mail] Melissa Noble, P.G., Division of Drinking Water, [e-mail] Pattee,
Division of Drinking Water, [e-mail] jchartier 20013 12292 OP WS008