DDW-2024-008195

June 11, 2024
Jody Defa
Timber Lakes Water SSD
322 East Gateway Drive
Suite 201
Heber City, Utah 84032
Subject:Conditional Plan Approval, Timber Lakes Water SSD Capital Improvements Project, Develop Lone Pine #7 Spring (WS011), Upper Lone Pine Chlorinator (TP003), Lookout Mountain Chlorinator
(TP004),
Temporary Exception to R309-515-7(7)(e),Spring Fencing; Timber Lakes Water SSD, System #26057, File #13868, SRF#3F1877
This Temporary Exception Expires on July 31, 2027.
Dear Jody Defa:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Timber Lakes Water SSD Capital Project from your consultant, Wyatt
Andersen, P.E. of Bowen Collins, and Associates on April 22, 2024. Review comments were sent to your consultant on May 20, 2024. A response to the review comments was received on May
21, 2024. The exception request to R309-515-7(7)(e), Spring Fencing, was received on May 23, 2024.
Project Background
Our understanding of the Timber Lakes Water SSD Capital Improvements Project is the following:
Installing seven new master meters to better quantify the water use for the Timber Lakes SSD water system,
Developing the Lone Pine #7 Spring (WS011), and
Installing two new gas chlorinators, Upper Lone Pine Chlorinator (TP003) and Lookout Mountain Chlorinator (TP004), to have more control over the distribution system chlorine residual.
The plan review of the proposed Upper Lone Pine Chlorinator (TP003)has been completed according to the following:
The proposed Upper Lone Pine Chlorinator (TP003)is a gas chlorinator.  
This chlorinator will add chlorine to the water from Lone Pine #1 Spring (WS001) and Lone Pine #3 Spring (WS007).
This chlorinator is intended to provide elective secondary disinfection in the distribution system. 
The chlorine will be added to the water at the inlet of the Lone Pine Tank #3- 300,000 gal. (ST007)before going into the distribution system.
The proposed gas chlorine for disinfection meets the ANSI/NSF 60 standard.
The proposed design target dose of 2.0 mg/L or ppm (measured as free chlorine) is based on a design flow of 200 gallons per minute (gpm).
The chlorine dose will be adjusted by a manually adjusted rotometer.
The Point of Entry (POE) sampling location will be the continuous analyzer located in the Upper Lone Pine Chlorinator (TP003) building which pulls from the outlet of the Lone Pine Tank
#3 - 300,000 gal. (ST007).
The plan review of the proposed Lookout Mountain Chlorinator (TP004)has been completed according to the following:
The proposed Lookout Mountain Chlorinator (TP004) is a gas chlorinator. 
This chlorinator will add chlorine to the water from the Lookout Mt Springs (WS004).
This chlorinator is intended to provide elective secondary disinfection in the distribution system.
The chlorine will be added to the water at the inlet of the Lookout Mt. Spring Tank (ST006) before going into the distribution system.
The proposed gas chlorine for disinfection meets the ANSI/NSF 60 standard.
The proposed design target dose of 2.0 mg/L or ppm (measured as free chlorine) is based on a design flow of 200 gpm.
The chlorine dose will be adjusted by a manually adjusted rotometer.
The Point of Entry (POE) sampling location will be the continuous analyzer located in the Lookout Mountain Chlorinator (TP004) Building which pulls from the outlet of the Lookout Mt.
Spring Tank (ST006).Exception Granted to R309-515-7(7)(e), Spring Fencing
The basis for your request for an exception to R309-515-7(7)(e) is the following:
No livestock grazing is allowed in the location of the spring.
Due to the steepness of the slope and heavy snowpack, the fence would be damaged each year and require repairs.
The spring is located in a remote area of the water system on private property that the public can’t access.
You propose the lack of livestock and public access provide an equivalent protection of health to a fence. On this basis, a temporary exception to R309-515-7(7)(e), Spring Fencing, is
hereby granted for Lone Pine #7 Spring (WS011).
This Temporary Exception expires on July 31, 2027.
Once the operating permit is issued you will be required to take source bacteriological samples to demonstrate there is not an increased risk to public health with the exception of spring
fencing.
You will be required to re-submit an exception request along with confirmation that all conditions outlined in this temporary exception have been fulfilled and obtain an exception renewal
prior to July 31, 2027.
Exceptions granted by the Division include an expiration date to ensure that the basis and conditions for granting the exception are verified periodically and that the drinking water
quality remains protected. After receiving your request, the Division will determine whether this exception can be re-issued.
Failure to request the re-evaluation of this exception and obtain an exception renewal by July 31, 2027, will result in the activation of the deficiency related to not having spring
fencing.
This Temporary Exception may be rescinded at any time if new evidence indicates that the conditions of this exception are no longer being met or a public health risk exists due to this
exception.Conditional Plan Approval
We have received the following information for the Timber Lakes Water SSD Capital Improvements:
Plans and specifications for the Timber Lakes SSD Capital Improvements project.
Preliminary Evaluation Report.
Exception Request for R309-515-7(7)(e), spring fencing.
We have completed our review of the plans and specifications, stamped and signed byWyatt Anderson, P.E., and dated April 12, 2024, and find they basically comply with the applicable

portions of Utah’s Administrative Rules for Public Drinking Water Systems in R309. On this basis, we hereby approve the proposed plans to constructTimber Lakes Water SSD Capital Improvements
subject to the following conditions:
Obtain concurrence of a preliminary evaluation report (PER) and Drinking Water Source Protection Plan (DWSP) for the Lone Pine #7 Spring (WS011) and provide confirmation of coverage
under recorded land use agreement(s) or a zoning ordinance in accordance with R309-600-13(2)(d).
Conditions of approval must be addressed in writing to the satisfaction of the Director prior to the issuance of an Operating Permit or this approval is invalid.
This conditional approval pertains to construction only. An Operating Permit must be obtained from the Director before Timber Lakes Water SSD Capital Improvements may be put in service.
A checklist outlining the items required for operating permit issuance is enclosed for your information.
Please label the spring water sample collected for new source chemical analysis with your water system number UTAH26057 and WS011 (for both the facility ID and sample point ID) on all
laboratory forms for each individual source. This will ensure proper identification and entry of the new source chemical analysis results in our database.
This approval pertains to construction only. Following completion of construction, you must obtain an Operating Permit prior to placing the facilitiesinto service. A checklist outlining
the spring approval process, including the items required for issuing an Operating Permit is enclosed for your information. Enclosed please also find an Operating Permit Checklist for
other components of this project. Please note that, before requesting an Operating Permit for this project, you must submit the required new source chemical analysis data to the Division
for review to determine whether additional treatment is required for using the Lone Pine #7 Spring (WS011) as a public drinking water source.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 Timber Lakes Water SSD is not required to disinfect any of the sources in the water system based on bacteriological source sample results currently available. The water system is
electing to install the Upper Lone Pine Chlorinator (TP003) and the Lookout Mountain Chlorinator (TP004) to provide a detectable disinfectant residual in the distribution system for
secondary disinfection.
The plan review of the proposed Upper Lone Pine Chlorinator (TP003) and the Lookout Mountain Chlorinator (TP004) is based on providing secondary disinfection. When this chlorinator is
installed and placed in operation after the Operating Permit issuance, the Timber Lakes Water SSD will be required to demonstrate ongoing compliance with the secondary disinfection requirements
that will be 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 the Lone Pine #1 Spring (WS001), Lookout Mt Spring (WS004), Lone Pine #3 Spring (WS007), and Lone Pine #7 Spring (WS011), or any water source of Timber Lakes SSD 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.
Source Monitoring RequirementsThe operating permit will include requirements for monthly Escherichia Coli (E. Coli) sampling at Lone Pine #1 Spring (WS001), Lookout Mt Spring (WS004),
Lone Pine #3 Spring (WS007), and Lone Pine #7 Spring (WS011), also called assessment monitoring, during the operating period when the springs are accessible. This monitoring is required
to evaluate the quality of the water coming from Lone Pine #1 Spring (WS001), Lookout Mt Spring (WS004), Lone Pine #3 Spring (WS007), and Lone Pine #7 Spring (WS011) to better protect
public health. Additional monitoring and/or disinfection requirements may be assigned depending on the results of the assessment monitoring.
State Revolving Fund Requirement
The project, as described herein, is generally eligible for assistance under the Drinking Water Construction Assistance Program. All change orders will need to be reviewed and approved
for compliance with the Drinking Water Rules and the conditions of this construction approval.
The project may now be advertised for bids. But, as a condition of the project funding, you must not award the contract or proceed with construction until the Division of Drinking Water
has authorized you to do so. This is necessary to comply with applicable requirements and to protect you, as the funding recipient, by ensuring that the contract meets requirements for
funded projects.
If you have any questions regarding this approval or temporary exception, please contact Dani Zebelean, P.E., of this office, at [phone], or Michael Newberry, P.E., Permitting
and Engineering Manager, at [phone].
Sincerely,
Russell Seeley, P.E.
Assistant Director
DZ/DLB/mrn/mdb
Enclosures ─ Spring Approval Checklist
Operating Permit ChecklistAddendum 1- Future Monitoring and Reporting Requirementscc:Dwight Hill, Wasatch County Health Department, [e-mail] Andersen, Bowen
Collins and Associates, [e-mail] Defa, Timber Lakes Water SSD, [e-mail]
Dani Zebelean, P.E., Division of Drinking Water, [e-mail]
Vulnerable Source Assessment Team, Division of Drinking Water, [e-mail]
Deidre Beck, P.G., Division of Drinking Water, [e-mail]
Sitara Federico, Division of Drinking Water, [e-mail]
Kjori Shelley, Division of Drinking Water, [e-mail]
Luke Treutel, Division of Drinking Water, [e-mail] DZebelean 26057 13868 CPA System Improvements Exception Granted R309-515-7(7)(e), Spring FencingDivision of Drinking WaterChecklist
for New or Redeveloped Public Drinking Water Springs
System Name: Timber Lakes Water SSDSystem Number: 26057Spring Name & Description: Lone Pine #7 Spring (WS011)1.Approval to Develop (or Redevelop) the Spring
☒Project Notification Form
☐Preliminary Evaluation Report (PER) concurrence (for new springs)
☒Spring location data
☐Documentation of valid water right(s)

☐If available, an engineer’s or geologist’s statement indicating:
☐The historical record of the spring flow variation
☐Expected minimum flow and the time of the year it will occur
☐Expected maximum flow and the time of the year it will occur
☐Expected average flow
☐The behavior of the spring during drought conditions
☐New source chemical analyses of the spring water (for new springs or existing springs that have not been sampled) [R309-515-4(5)]
☐An assessment of whether the spring is “under the direct influence of surface water” [This assessment can be based on an on-site inspection, known geological conditions, or specific
water analysis results such as an MPA.]
☒Detailed plans and specifications for spring developmentor redevelopment2.Operating Permit to Use the Spring Water
☐Information on the rate of flow developed from the spring
☐Historical spring flow data or a minimum of 3 years of spring flow data — for determining the spring yield and issuing an Operating Permit
☐Current spring flow rate — for issuing a temporary Operating Permit (in case of insufficient flow data for determining the spring yield)
☐ 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 rule conformance with plan approval conditions
☐Design engineer’s certification of rule conformance for any deviation from approved plans
☐As-built or record drawings
☐Proof of satisfactory bacteriological quality
☐Water quality data, where appropriate [If the initial new source sampling indicates unsatisfactory turbidity, the spring water must be re-sampled and proven to have turbidity level
below the MCL.]
Utah Division of Drinking Water ― Checklist for Issuing Operating PermitsWater System Name:Timber Lakes Water SSDSystem Number: 26057Project Description: Capital Improvements ProjectFile
Number: 13868
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 plan approval 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 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 1,000 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 elective 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)]
Source Bacteriological Monitoring 
The operating permit will include requirements for monthly Escherichia Coli (E. Coli) sampling at Lone Pine #1 Spring (WS001), Lookout Mt Spring (WS004), Lone Pine #3 Spring (WS007),
and Lone Pine #7 Spring (WS011), prior to any treatment, for the months the Lone Pine #1 Spring (WS001), Lookout Mt Spring (WS004), Lone Pine #3 Spring (WS007), and Lone Pine #7 Spring
(WS011) is in operation or accessible for a minimum of two operating seasons. This monitoring is required to evaluate the quality of the water coming from Lone Pine #1 Spring (WS001),
Lookout Mt Spring (WS004), Lone Pine #3 Spring (WS007), and Lone Pine #7 Spring (WS011) to determine whether primary disinfection treatment is required or not. Additional monitoring
and/or disinfection requirements may be assigned depending on the results of the assessment monitoring.