DDW-2024-010906

September 12, 2024
Paul Swainston
Lewiston City
P.O. Box 36
Lewiston, Utah 84320
Subject:Operating Permit, Sports Complex Production Well (WS005), Sports Complex Booster Station (PF005), Sports Complex Chlorinator (TP005), and Griffin Well Chlorinator (TP004); Lewiston
City, System #03009,File #12566
Dear Paul Swainston:
The Division of Drinking Water (the Division) received a request for an Operating Permit for the Sports Complex Production Well (WS005), Sports Complex Booster Station (PF005), Sports
Complex Chlorinator (TP005), and Griffin Well Chlorinator (TP004) from your consultant Marcus Simons, P.E. of J-U-B Engineers on July 16, 2024. Confirmation of final source delineations
for the Sports Complex Production Well (WS005) by Lewiston City was received on September 9, 2024. The Division issued Plan Approval for this project on October 3, 2022. The Division
issued the amended Plan Approval for the well drilling of the Sports Complex Production Well (WS005) on August 3, 2021. Division staff, Cameron Draney, conducted a final inspection of
this project on July 19, 2024. This project has met all conditions for receiving an operating permit.
Our understanding of the project was to construct and equip the Sports Complex Production Well (WS005). Additionally, the project included the construction of the Sports Complex Chlorinator
(TP005), Sports Complex Booster Station (PF005), and the Griffin Well Chlorinator (TP004). The water from the Sports Complex Production Well (WS005) will be chlorinated and stored in
the Cub River 1 MG Storage tank (ST005), reviewed under Plan Review #13096. The booster station will pressurize the water from the storage tank to the distribution system. The project
also included expanding the Griffin Well (WS004) wellhouse and adding the Griffin Well Chlorinator (TP004).
The Sports Complex Production Well (WS005) was drilled to approximately 410 feet. It was equipped with a 1,500 gallon per minute (gpm) pump. The Sports Complex Booster Station (PF005)
has three pumps, two are 850 gallons per minute (gpm), 75 hp pumps, and the third is a 350 gpm, 30 hp pump.
The equipped well pump capacity of the Sports Complex Production Well (WS005) is 1,500 gpm. The safe yield of Sports Complex Production Well (WS005) is rated at 1,200gpm, which is calculated
based on two-thirds of the constant-rate aquifer drawdown test results at 1,800gpm. The safe yield of 1,200gpm is the basis for determining the maximum number of connections that Sports
Complex Production Well (WS005) can serve.
The Sports Complex Chlorinator (TP005) included in this project has been completed according to the following:
The Sports Complex Chlorinator (TP005)is a gas chlorinator to provide secondary disinfection.
The Sports Complex Chlorinator (TP005)treats water from the Sports Complex Production Well (WS005). The gas chlorine is added to the water on the Sports Complex Production Well discharge
piping.
The chlorinated water then enters the Cub River 1 MG Tank (ST005) and is then pressurized by the Sports Complex Booster Station (PF005) into the distribution system.
The gas chlorine used for disinfection meets the ANSI/NSF 60 standard.
A design target dose of 1.0mg/L (ppm) of free chlorine is based on a typical flow of 1,500gpm from the Sports Complex Production Well (WS005).
The chlorine dose is adjusted by a manually adjusted rotometer set for the constant flow from the Sports Complex Production Well (WS005).
The Giffin Well Chlorinator (TP004)included in this project has been completed according to the following:
The Giffin Well Chlorinator (TP004)is a gas chlorinator to provide secondary disinfection.
The Giffin Well Chlorinator (TP004)treats water from the Griffin Well (WS004). The gas chlorineis added to the water on the Griffin Well (WS004) discharge piping.
The chlorinated water then enters 400 K Tank (ST001) and the 1 MG Tank (ST002). From there the water flows into the distribution system.
The gas chlorine used for disinfection meets the ANSI/NSF 60 standard.
A design target dose of 1.0 mg/L (ppm) of free chlorine is based on a typical flow of 900gpm from Griffin Well (WS004).
The chlorine dose is adjusted by a manually adjusted rotometer set for the constant flow from the Griffin Well (WS004).
We have received the following information for Sports Complex Production Well (WS005), Sports Complex Booster Station (PF005), Sports Complex Chlorinator (TP005), and Griffin Well Chlorinator
(TP004):
Certification of Rule Conformance with plan approval conditions by professional engineer Marcus Simons, P.E. of J-U-B Engineers dated July 12, 2024.
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 Sports Complex Production Well (WS005), Sports Complex Booster
Station (PF005), Sports Complex Chlorinator (TP005), and Griffin Well Chlorinator (TP004)is hereby issued as constituted by this letter. You may now place the facilities in service in
your water system.
Please maintain a copy of this letter with your permanent records for future reference.
Secondary Disinfection Requirements
Lewiston Cityis not required to disinfect the Griffin Well (WS004) nor the Sports Complex Production Well (WS005)based on bacteriological source sample results currently available. The
water systemhas voluntarily installed the Giffin Well Chlorinator (TP004) and the Sports Complex Chlorinator (TP005) to provide a detectable disinfectant residual in the distribution
system for secondary disinfection.
Please be aware that, if any water source of Lewiston Cityis 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.
Lewiston Cityis required to demonstrate ongoing compliance with the secondary disinfection requirements outlined in Addendum 1 of this letter as long as the Griffin Well (WS004) and
the Sports Complex Production Well (WS005) are in operation.
Monitoring and ReportingIssuance of this Operating Permit changes your water system’s monitoring and reporting requirements. The updated monitoring requirements are given in addendum
1. Please contact Mark Berger, Water Quality/Monitoring and Standards Manager at [phone] for questions regarding the monitoring and reporting requirements for your water system.

Source Bacteriological Monitoring (WS005)
This water system is required to take monthly bacteriological samples of the Sports Complex Production Well (WS005) prior to any treatment, for the months the spring is (in operation

or accessible). The source sampling requirement shall begin in November 2024 and last at least 12 months.
The purpose of the source sampling requirement is to gather data to evaluate the quality of the source water from Sports Complex Production Well (WS005) and determine whether primary
disinfection treatment is required or not.
Label the source samples with WS005 as the sampling location.
The required source bacteriological sampling is shown on your monitoring schedule for this sample site. Please note that the source sampling is in addition to the distribution system
bacteriological sampling already in place, which is labeled DS001.
After 12 months of source sampling data become available, the Division will evaluate the results to determine whether primary disinfection is required for Sports Complex Production Well
(WS005).
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.
Preliminary Contact Time Estimation
The Division received from your consultant, Marcus Simons, P.E., with J-U-B Engineers, the information on estimated worst-case scenario disinfection CT for each of the proposed chlorinators.
The estimated worst case scenario disinfection CT before the chlorinated water reached the Point-of Entry is 12.5 min for the Griffin Well Chlorinator (TP004) and 12.2 for the Sports
Complex Chlorinator (TP005). Additional monitoring equipment would be required to demonstrate the achieved CT if it is required in the future.
If you have any questions regarding this Operating Permit, please contact Dani Zebelean, 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
DZ/mrn/mdbcc:Ben Harker, Bear River Health Department, [e-mail] Simons, J-U-B Engineers, [e-mail] Swainston, Lewiston City, [e-mail] Zebelean,
P.E., Division of Drinking Water, [e-mail] Draney, P.E., Division of Drinking Water, [e-mail] Payne, Division of Drinking Water, [e-mail]
Noble, P.G., Division of Drinking Water, [e-mail] Treutel, Division of Drinking Water, [e-mail] Sitara Federico, Division of Drinking Water, [e-mail]
Yee, Division of Drinking Water, [e-mail] Kruse, Division of Drinking Water, [e-mail]
DZebelean 03009 12566 OP WS005 PF005 TP005 TP004
Addendum 1 
Elective Monitoring and Reporting Requirements 
Chlorine Monitoring & Reporting Requirements
The water system is required to meet elective 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. 
Elective Disinfection Requirements and Reporting 
Chlorine Residual ‒ Point of Entry (POE) to Distribution System
The POE sampling location is identified as EP004 for the Griffin Well Chlorinator (TP004) in the Division’s database. This location has been identified as the first service connection
after the 1MG Tank (ST002). 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 POE sampling location is identified as EP005 for the Sports Complex Chlorinator (TP005) in the Division’s database. This location has been identified as one of the smooth nose sample
taps in the Sports Complex Booster Station (PF005). 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 chlorine residual concentration, measured as free chlorine, at the chlorinator POE sampling location a minimum of three (3) times per week. [R309-210-
8(3)(a)(ii)]
Our records show that your water system serves 2, 078 people. Please be aware that R309-215-16(3)(b)(iii)(A)(II) requires water systems serving 3,300 people or fewer to monitor the POE
chlorine residuals and take daily grab sample(s). Alternatively, instead of taking daily grab samples, a groundwater system serving 3,300 or fewer people may choose to use an online
analyzer to continuously monitor the POE chlorine residuals entering the distribution system.
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 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)]
Source Bacteriological Monitoring (WS005)
This water system is required to take monthly bacteriological samples of the Sports Complex Production Well (WS005) prior to any treatment, for the months the spring is (in operation
or accessible). The source sampling requirement shall begin in November 2024 and last at least 12 months.

The purpose of the source sampling requirement is to gather data to evaluate the quality of the source water from Sports Complex Production Well (WS005) and determine whether primary
disinfection treatment is required or not.
Label the source samples with WS005 as the sampling location.
The required source bacteriological sampling is shown on your monitoring schedule for this sample site. Please note that the source sampling is in addition to the distribution system
bacteriological sampling already in place, which is labeled DS001.
After 12 months of source sampling data become available, the Division will evaluate the results to determine whether primary disinfection is required for Sports Complex Production Well
(WS005).
Please contact Sitara Federico for any positive samples that may occur at the source at 385-515-1459 or [e-mail]. If any sample result comes back as E. coli positive, please
contact the Division within 24 hours of being notified of the result.
Source Monitoring Requirements
Issuance of this Operating Permit changes your water system’s monitoring and reporting
requirements. The monitoring requirements for this well are given below. 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 ReferenceWS005 Sports Complex Production WellRadionuclides1Quarterly10/01/2024-12/31/2024R309-205-7(1)(b)Nitrate1Yearly01/01/2024-12/31/2024R309-205-5(4)(a)Volatile
Organic Contaminants1Yearly01/01/2024-12/31/2024R309-205-6(2)Inorganics & Metals1Every three years01/01/2023-12/31/2025R309-205-5(3)(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)