DDW-2024-010539

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
August 27, 2024

Seth Oveson Monte Vista Community Water Co 713 N 3700 W Cedar City, UT 84720
Subject: Notice of Increased Monitoring Requirements for Monte Vista Community Water Co, UTAH11036
Clayten Nelson: The Division of Drinking Water (the Division) has not received updated Drinking Water Source
Protection (DWSP) plans for Monte Vista Well 1 (WS001) and Well #2 (WS002), which were required by December 31, 2022, and December 31, 2016, respectively. As a result, the reduced monitoring waivers previously applied to these sources have been revoked. A volatile organics sample is now required from the grouped source sample station (identified as
SS061) every three years. The next volatile organics sample is due sometime between January 1, 2023, and December 31, 2025. We strongly encourage the water system to submit an updated source protection plan and signed waiver statement for these sources. Please contact Deidre Beck at [phone] or via email at
[e-mail] with questions regarding source protection requirements.
The updated monitoring requirements for this grouped source sample station are given below. An updated monitoring schedule can be viewed any time at waterlink.utah.gov under the water monitoring section.

Seth Oveson Page 2 of 2
August 27, 2024

Facility with new requirements Analyte(s) Required # of samples Sampling Frequency Next Due Date Rule Reference
SS061 Sampling Station – 01 02 Nitrate 1 Yearly 01/01/2024-12/31/2024 R309-205-5(4)(a)
Volatile Organic Contaminants 1 Every three years 01/01/2023-12/31/2025 R309-205-6(2)
Pesticides 1 Every three years 01/01/2026-12/31/2028 R309-205-6(1)(f)
Radionuclides 1 Every six years 01/01/2020-12/31/2025 R309-205-7(1)(c)
Inorganics & Metals 1 Every nine years 01/01/2020-12/31/2028 R309-205-5(3)(a)
Sulfate, Sodium, TDS 1 Every nine years 01/01/2020-12/31/2028 R309-205-5(3)(a)
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 Enclosure: Monitoring Schedule cc: Seth Oveson, Monte Vista Community Water Co, [e-mail]
Jeremy Roberts, Southwest Utah Health Department, [e-mail] Paul Wright, P.E.. DEQ District Engineer, [e-mail]
Deidre Beck, Division of Drinking Water, [e-mail] Mark Berger, Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]