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HomeMy WebLinkAboutDDW-2024-009166 July 23, 2024 Chris Kay Steele Genola City 74 West 800 South Santaquin, Utah 84655 Subject:Operating Permit, Quarry Hills Well (WS003), Quarry Hills Well Chlorinator (TP001), Quarry Hills Tank (ST002); Genola City, System #25012, Files #11821 and #12919, SRF #3F1732 Dear Chris Kay Steele:The Division of Drinking Water (the Division) received your request for the Operating Permit for the Quarry Hills Well (WS003), Quarry Hills Chlorinator (TP001), and Quarry Hills Tank (ST002) from your consultant, Lauren Ploeger, P.E. and Franson Civil Engineers on July 12, 2024. The Division issued Plan Approval for drilling this well on October 28, 2021, and Plan Approval for equipping this well and the chlorination facility on May 11, 2023. The Division also issued Plan Approval for the storage tank on April 4, 2022. Division staff conducted an onsite final inspection of this project on June 26, 2024. The letter includes the following sections and addenda:   1.Project Summary for Quarry Hills Well Chlorinator (TP001)  2. Operating Permit for Quarry Hills Well Chlorinator (TP001) 3.Monitoring and Reporting Requirements (Addendum 1) Project Summary The Quarry Hills Well (WS003) was drilled and equipped with a 1,200 gallons per minute (gpm) vertical turbine pump with a 150-HP motor. All of the equipment is housed in a new well house along with a 200 KW diesel generator for backup power. The Quarry Hills Well (WS003) has a chlorination facility installed but will be inactive. You must contact the Division before activating this facility. The Quarry Hills Well chlorinator is a gas chlorinator. This chlorinator will add chlorine to the water from the Quarry Hills Well (WS003). This chlorinator is intended to provide secondary disinfection in the distribution system. The chlorinated water enters the Quarry Hills Tank (ST002) and flows into the distribution system. The gas chlorine used for disinfection meets the ANSI/NSF 60 standard. The design target dose of mg/L (ppm) of free chlorine is based on a typical flow of 1,200 gallons per minute (gpm) from the Quarry Hills Well (WS003). The chlorine dose is adjusted by an automatic flow-paced control. The Point of Entry (POE) sampling location is a sampling tap located on the pump discharge piping. The Quarry Hills Well pumps to the Quarry Hills Tank and then to the distribution system. The Quarry Hills Well, Quarry Hills Chlorinator, and Quarry Hills Tank are identified as WS003, TP001, and ST002; respectively, in the Division’s database. We have received the following information for the Quarry Hills Well (WS003), Quarry Hills Chlorinator (TP001), and Quarry Hills Tank (ST002): Design engineer’s statement of conformance with approval conditionsand changes made during construction were in conformance with rules R309-500 through 550. Documentation of valid water rights. Evidence of O&M manual delivery. As-built record drawings. Documentation that the requirements for coverage under the City/County source protection ordinance have been met. 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 forthe Quarry Hills Well (WS003), Quarry Hills Chlorinator (TP001), and Quarry Hills Tank (ST002) is hereby issued as constituted by this letter. You may now place the Quarry Hills Well (WS003), Quarry Hills Chlorinator (TP001), and Quarry Hills Tank (ST002)in service in your water system. The equipped well pump capacity of the Quarry Hills Well (WS003) is 1,200gpm. The safe yield of the Quarry Hills Well (WS003) is rated at 1,000gpm, which is calculated based on two-thirds of the constant-rate aquifer drawdown test results at 1,500gpm. The safe yield of 1,000gpm is the basis for determining the maximum number of connections that the Quarry Hills Well (WS003) can serve. Please maintain a copy of this letter with your permanent records for future reference. Secondary Disinfection Requirements Genola City is not required to disinfect the Quarry Hills Well (WS003) based on bacteriological source sample results currently available. The water system has elected to install the Quarry Hills Well Chlorinator (TP001) to provide a detectable disinfectant residual in the distribution system for secondary disinfection. 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 that, if any water source of the Genola 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 Genola City water system is required to demonstrate ongoing compliance with the secondary disinfection requirements found in Addendum 1as long as the Quarry Hills Well Chlorinator (TP001)is in operation. Other Monitoring Requirements Issuance of this Operating Permit changes your water system’s monitoring and reporting requirements. The source monitoring requirements for this well are given in addendum 1 and can be found anytime online at waterlink.utah.gov. Please note that the new source chemistry analysis showed Fluoride at 3 mg/L, which is greater than the secondary standard of 2 mg/L. Fluoride levels above 2 mg/L are known to cause dental fluorosis. This source is required to be sampled for Fluoride for a minimum of two quarters. Please contact David Kruse at (385)566-7789 or dbkruse@utah.gov for questions regarding the monitoring and reporting requirements for your water system. Drinking Water Source Protection The updated Drinking Water Source Protection plan is due December 31, 2028. If you have questions about the source protection requirements, please contact Melissa Noble. P.G., at (385) 271-7043 or via email at mnoble@utah.gov. If you have any questions regarding this Operating Permit, please contact Chris Martin, P.E., of this office, at (385) 271-7040, or Michael Newberry, P.E., Permitting and Engineering Manager, at (385) 515-1464. Sincerely, Russell Seeley, P.E. Assistant Director CM/MNN/mrn/mdbcc: Daymon Swensen, Utah County Health Department, daymons@utahcounty.govLauren C. Ploeger, Franson Civil Engineers, lploeger@fransoncivil.comChris Kay Steele, Genola City, gcpw@rfburst.com Chris Martin, P.E., Division of Drinking Water, cmartin@utah.gov Melissa Noble, P.G., Division of Drinking Water, mnoble@utah.gov Luke Treutel, Division of Drinking Water, ltreutel@utah.gov (disinfection & DBP) David Kruse, Division of Drinking Water, dbkruse@utah.gov (arsenic, inorganics, organics, NO3, rads) Jennifer Yee, Division of Drinking Water, jyee@utah.gov Heather Pattee, Division of Drinking Water, hpattee@utah.gov Linda Ross, Division of Drinking Water, lpross@utah.gov (srf)CMartin 25012 11821_12919 OP - WS003_TP001_ST002] Addendum 1  Monitoring and Reporting Requirements  Chlorine Monitoring & Reporting Requirements The water system is required to meet the elective disinfection requirements below once the chlorinator is in operation. 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 EP001 in the Division’s database. This location has been identified as the sample tap on the discharge piping of the Quarry Hills Well (WS003). 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 1,600 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 completed monthly and 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 (385) 258-6084 or ltreutel@utah.gov 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 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 dbkruse@utah.gov for questions regarding the source monitoring and reporting requirements for your water system.Facility with new requirementsAnalyte(s) Required# of samplesSampling FrequencyNext Due DateRule ReferenceWS003 Quarry Hills WellFluoride1Quarterly10/01/2024-12/31/2024R309-205-5(3)(a)Radionuclides1Quarterly10/01/2024-12/31/2024R309-205-7(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 years01/01/2026-12/31/2028R309-205-5(3)(a)Sulfate, Sodium, TDS1Every three years01/01/2026-12/31/2028R309-205-5(3)(a)Pesticides1Every three years01/01/2026-12/31/2028R309-205-6(1)(f)