DDW-2025-003007

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
Tim Davis Executive Director DIVISION OF DRINKING WATER Nathan Lunstad, Ph.D., P.E. Director

March 18, 2025

Marjalee Smith Highlands Water Company Inc 5880 N Highland Dr Mountain Green, UT 84050
Subject: Notice of Increased Monitoring for Highlands Water Company, UTAH15005 Marjalee Smith:
This letter serves as notification that the routine monitoring requirements for Highlands Water Company have increased following the incorporation of Mountain Green Well 1 (identified as WS018). Pursuant to R309-205 all active sources supplying water to a community water system shall be monitored for six chemical contaminants at varying frequencies.
The Division of Drinking Water (the Division) understands that Highlands Water Company is considering drilling a replacement well for the Mountain Green Well 1 (WS018). Should this happen, please contact the Cameron Draney of this office at [e-mail] or [phone].
The routine monitoring requirements for the Mountain Green Well 1 (WS018) are given below and are available to view anytime on waterlink.utah.gov under the water monitoring section.
Facility with new requirements Analyte(s) Required # Of samples Sampling Frequency Next Due Date Rule Reference
WS018 Mountain Green Well Nitrate 1 Yearly 01/01/2025-
12/31/2025 R309-205-5(4)(a)
Inorganics and Metals 1 Every three years 01/01/2023-12/31/2025 R309-205-5(3)(a)
Pesticides 1 Every three years 01/01/2023-12/31/2025 R309-205-6(1)(f)
Sodium Sulfate TDS 1 Every three years 01/01/2023-12/31/2025 R309-205-5(3)(a)
Volatile Organics 1 Every three years 01/01/2023-12/31/2025 R309-205-6(2)
Radionuclides 1 Every six years 01/01/2026-12/31/2031 R309-205-7(1)(c)
PFAS Collect (1) sample every 5-7 months during a 12 month period for a total of 2 samples by April 26, 2027
40 CFR 141 (2024)
Marjalee Smith Page 2 of 2
March 18, 2025
PFAS Information and Resources
The EPA rule for PFAS requires that either method 533 or 537.1 version 2 are used for testing.
Please ensure that the chosen laboratory processes PFAS samples using one of these methods. Additionally, the Division has resources to assist water systems in completing the PFAS initial monitoring requirements. For more information on the resources the division can provide related to PFAS initial monitoring please visit ddwpfas.utah.gov. For PFAS related questions, please
contact John Steffan at [e-mail] or [phone].
Thank you for your efforts in maintaining a safe drinking water system. If you have questions concerning this systems source sampling requirements, please contact David Kruse at 385-566-
7789 ([e-mail]).
Sincerely,
Mark Berger Monitoring and Standards Implementation Manager Enclosure – Monitoring Schedule cc: Marjalee Smith, Highlands Water Company Inc, [e-mail] Scott Braeden, Weber-Morgan Health Department, [e-mail] Cameron Draney, Division of Drinking Water, [e-mail] John Steffan, Division of Drinking Water, [e-mail] Mark Berger, Division of Drinking Water, [e-mail] David Kruse, Division of Drinking Water, [e-mail] [e-mail]