DDW-2024-014761

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 DIEDRE HENDERSON Lieutenant Governor
Department of Environmental Quality
Kimberly D. Shelley Executive Director DIVISION OF DRINKING WATER Nathan Lunstad, Ph.D., P.E. Director
December 23, 2024

Scott Taylor St George City Water System 175 E 200 N St George, UT 84770
Subject: Notice of Decreased Monitoring for St George City Water System; UTAH27015 Scott Taylor:
The Division of Drinking Water (the Division) understands that St George City maintains
compliance with the arsenic maximum contaminant level (MCL) through blending of sources and centralized treatment at the Gunlock Water Treatment Facility (TP038). On December 5, 2024, Kerry Benson requested that the Division re-evaluate St George City Water System’s arsenic monitoring requirements.

According to the Divisions records, compliance has been demonstrated through monthly arsenic samples collected from the various facility point of entries, upstream of the first service connections.
St George City qualifies for reduced arsenic monitoring. The sampling frequencies for arsenic
have been reduced from monthly to quarterly. Quarterly samples will now be required from the following facilities:
1. Sampling Station – 10 12 13 17 18 22 24 31 (identified as SS137)
2. Sampling Station – 01-08 (SS953) 3. Gunlock Water Treatment Facility (TP038) 4. CityCreekWell-MtnSprings- As Blend Inlet (TP039) 5. City Creek Well- MtnSprings-As Blend POE (TP040)
6. Arsenic Snow Canyon Effluent Blend (TP041)
7. Arsenic-WCWCD Pipeline WS040 (TP042) 8. City Creek Well (WS015)
Scott Taylor Page 2 of 2
December 23, 2024
The next arsenic samples are due from the facilities listed above sometime between January 1, 2025 and March 31, 2025.

Thank you for your efforts in maintaining a safe drinking water system. Please contact David Kruse at [phone] or [e-mail] if you have any questions or need assistance. Sincerely,

Mark Berger
Monitoring and Standards Section Manager

Enclosure: Monitoring Schedule cc: Scott Taylor, St George City Water System, [e-mail]
Kerry Benson, St George City Water System, [e-mail]
Jeremy Roberts, Southwest Utah Health Department, [e-mail]
Paul Wright P.E., DEQ District Engineer, [e-mail]
Mark Berger, Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]