DDW-2024-012939

195 North 1950 West • Salt Lake City, UT Mailing Address: P.O. Box 144830 • Salt Lake City, UT 84114-4830 Telephone [phone] • Fax [phone] • T.D.D. [phone] www.deq.utah.gov Printed on 100% recycled paper
State of Utah

SPENCER J. COX Governor DEIDRE HENDERSON Lieutenant Governor
Department of Environmental Quality
Kimberly D. Shelley Executive Director
DIVISION OF DRINKING WATER Nathan Lunstad, Ph.D., P.E. Director
October 22, 2024

Jason Helm Granger-Hunter Improvement District PO BOX 701110 Salt Lake City, UT 84170
Subject: Notice Decreased Monitoring Requirements for Granger-Hunter Improvement District; UTAH18007
Jason Helm: It is the Division of Drinking Water’s (the Division) understanding that the Sanderson Well #1
(WS002), the Acord Well #12 (WS014) and the Well #17 (WS019) meet the conditions presented in R309-205 to be sampled collectively at the Rushton WTP (TP027). Please collect all chemical source samples (PFAS, Inorganics and Metals, Pesticides, VOCs, Radionuclides, Nitrate, and Sodium Sulfate and TDS) from the Rushton WTP (TP027) when all three sources are represented in the sample.
Prior to the construction of the Rushton WTP (TP027) each of these sources pumped into the distribution system individually. However, the water system has since been reconfigured so that each of the wells now must pass through the Rushton WTP (TP027) prior to servicing any connections. R309-205 states that if a system draws water from more than one source and the
sources are combined before distribution, the system shall sample at an entry point to the
distribution system during periods of normal operating conditions (i.e., when water is representative of all sources being used). This change results in a decreased monitoring requirement overall. The updated monitoring
requirements for the Rushton WTP (TP027) are given below. An updated monitoring schedule
can be viewed any time at waterlink.utah.gov under the Water Monitoring section.

Jason Helm Page 2 of 2
October 22, 2024

Facility with new requirements Analyte(s) Required # of samples Sampling Frequency Next Due Date Rule Reference
TP027 Rushton WTP Iron 1 Quarterly 10/01/2024-12/31/2024 R309-215-6(2)(a)
Manganese 1 Quarterly 10/01/2024-12/31/2024 R309-215-6(2)(a)
Ammonia 1 Quarterly 10/01/2024-12/31/2024 R309-215-6(2)(a)
Nitrate 1 Yearly 01/01/2025-12/31/2025 R309-205-5(4)(a)
Inorganics & Metals 1 Every three years 01/01/2026-12/31/2028 R309-205-5(3)(a)
Pesticides 2 Every three years 01/01/2026-12/31/2028 R309-205-6(1)(f)
Volatile Organic Contaminants 1 Every three years 01/01/2026-12/31/2028 R309-205-6(2)
Sulfate, Sodium, TDS 1 Every three years 01/01/2026-12/31/2028 R309-205-5(3)(a)
Radionuclides 1 Every six years 10/01/2026-12/31/2031 R309-205-7(1)(c)

Please contact David Kruse at (385)-566-7789 or [e-mail] for questions regarding the
source monitoring and reporting requirements for your water system. Sincerely,

Mark Berger Monitoring and Standards Implementation Manager

cc: Jason Helm, Granger-Hunter Improvement District, [e-mail] Fuaah Hararah, Salt Lake County Health Department, [e-mail] Mark Berger, Division of Drinking Water, [e-mail] David Kruse, Division of Drinking Water, [e-mail]
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