DDW-2024-008183

June 11, 2024
Jim Barnes
Camp Wapiti
141 Country Club Drive
Stansbury Park, Utah 84074
Subject:After-the-FactOperating Permit, Liquid Chlorinator (TP002) Hydropneumatic Expansion Tank (HD001); Camp Wapiti, System #23035,File #13258
Dear Jim Barnes:
The Division of Drinking Water (the Division) received a request for an Operating Permit for the Camp Wapiti Liquid Chlorinator (TP002) and Hydropneumatic Expansion Tank (HD001) from
your consultant, Robert Rousselle and Ensign Engineering on May 30, 2024. Division staff, Brent Arns and Brian Pattee, conducted a final inspection of this project on May 30, 2024. This
project has met all the conditions for receiving an operating permit.
Our understanding of the project was the installation of a new hypochlorite chlorinator and 3,300-gallonhydropneumatic expansion storage tank. The Camp Wapiti Liquid Chlorinator is identified
as TP002, and the Camp Wapiti Hydropneumatic Storage Tank is identified as HD001in the Division’s database.
The Liquid Chlorinator (TP002)included in this project has been completed according to the following:
The Liquid Chlorinator is used to provide secondary disinfection, by adding sodium hypochlorite solution of 12.5% concentration. Brand LMI model # B711-D98HI serial # 200747D4566-1.
The Liquid Chlorinator treats water from the Tooele Consecutive Connection (WS001). The sodium hypochlorite solution is added to the water at Hydropneumatic Storage Tank (HD001).
The chlorinated water then flows into the distribution system.
The sodium hypochlorite solution used for disinfection meets the ANSI/NSF 60 standard.
A design target dose of 0.2 mg/L (ppm) of free chlorine is based on a typical flow of 500 gallons per minute (gpm) from the Tooele Consecutive Connection (WS001).
The chlorine dose is adjusted by a manually adjusted rotometer set for the constant flow from the Tooele Consecutive Connection (WS001).
We have received the following information for Liquid Chlorinator (TP002) Hydropneumatic Expansion Tank (HD001) project:
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 after-the-fact operating permit have been met. On this basis, an After-the-FactOperating Permit for the Camp Wapiti Liquid Chlorinator
(TP002) and Hydropneumatic Expansion Tank (HD001)is hereby issued as constituted by this letter. You may now place the Liquid Chlorinator (TP002) and Hydropneumatic Expansion Tank (HD001)
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 Camp Wapiti water system must provide continuous disinfection to maintain detectable chlorine residuals throughout the distribution system.
In August 2022, Camp Wapiti took a total of four distribution samples and one triggered source sample. All the samples were total coliform positive and one of the repeats was also Escherichia
coli (E. coli) positive. The E.coli positive result indicates that Camp Wapiti (Elks) does not reliably meet bacteriological standards in the distribution system. As a result, the Division
sent Camp Wapiti a letter dated February 7, 2023, which required the system to install and operate disinfection facilities.
The system will be required to comply with the secondary disinfection monitoring and reporting requirements outlined in Addendum 1 of this letter once the system’s Liquid Chlorinator
(TP002) is in operation.
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 After-The-Fact Operating Permit, please contact Brent Arns, of this office, at [phone], or Michael Newberry, Permitting and Engineering
Support Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
BA/LT/mrn/mdbcc:Bryan Slade, Tooele County Health Dept., [e-mail] Rousselle, P.E., Ensign Engineering, [e-mail] Barns, Camp Wapiti, [e-mail]
Muir, Camp Wapiti, [e-mail] Pierce, Camp Wapiti, [e-mail] Crocker, Camp Wapiti, [e-mail] Page, PhD, Division of Drinking Water,
[e-mail] Federico, Division of Drinking Water, [e-mail] Treutel, Division of Drinking Water, [e-mail] Martin, P.G., Division of Drinking Water,
[e-mail] Arns, Division of Drinking Water, [e-mail]
13258 23035 ATF OP Camp Wapiti TP002 HD001 Arns
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.
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. The precise location of the POE will need to be provided to the Division. 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 Liquid Chlorinator POE sampling location (EP002). [R309-210- 8(3)(a)(ii)]Our records show that
your water system serves 200 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.
Operational reports are submitted quarterly. The reports are due to the Division by the 10th day following the end of each reporting month or quarter (i.e., January 10th, April 10th,
July 10th, and October 10th for quarterly reports). The reports can be submitted by hardcopy, fax, or email at [e-mail]. 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)]