DDW-2024-008599

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 P.E.
Director
May 21, 2024
Tom Ward
Sandy City Water System
10000 S. Centennial Parkway
Sandy, UT 84070
Subject: Notice of Source Reactivation, Increased Monitoring Requirements for
Sandy City, UTAH18028
Tom Ward:
According to the Division of Drinking Water’s (the Division) records, Sandy City recently
reactivated the facilities listed below. This changes the monitoring requirements for this system.
1.Bicentennial Well (WS021)\
2. Bicentennial Chlorinator + Fluoride (TP021)
3.Dimple Dell Well (WS032)
4.Dimple Dell Well Fluoridator (TP032)
5. Big Canyon Well (WS006)
6.Palmer Well (WS015)
7. Palmer Fluoridator + Chlorinator (TP015)
The monitoring requirements for these sources are given below. An updated monitoring schedule
can be viewed any time at waterlink.utah.gov under the Water Monitoring section.
Facility with new
requirements Analyte(s) Required # of
samples
Sampling
Frequency Next Due Date Rule
Reference
WS006 Big Canyon Well Inorganics & Metals 1 Every nine years 01/01/2029-
12/31/2037
R309-205-
5(3)(a)
Nitrate 1 Yearly 01/01/2025-
12/31/2025
R309-205-
5(4)(a)
Sulfate, Sodium, TDS 1 Every nine years 01/01/2029-
12/31/2037
R309-205-
5(3)(a)
Pesticides 2 Every three years 07/01/2024-
09/30/2024
R309-205-
6(1)(f)
Tom Ward
Page 2 of 3
May 21, 2024
Radionuclides 1 Every three years 01/01/2026-
12/31/2028
R309-205-
7(1)(c)
Volatile Organic
Contaminants 1 Every three years 01/01/2026-
12/31/2028 R309-205-6(2)
WS032 Dimple Dell Well Inorganics & Metals 1 Every three years 01/01/2026-
12/31/2028
R309-205-
5(3)(a)
Nitrate 1 Yearly 01/01/2025-
12/31/2025
R309-205-
5(4)(a)
Sulfate, Sodium, TDS 1 Every three years 01/01/2026-
12/31/2028
R309-205-
5(3)(a)
Pesticides 2 Every three years 07/01/2024-
09/30/2024
R309-205-
6(1)(f)
Radionuclides 1 Every three years 01/01/2026-
12/31/2028
R309-205-
7(1)(c)
Volatile Organic
Contaminants 1 Every three years 01/01/2026-
12/31/2028 R309-205-6(2)
WS021 Bicentennial Well Inorganics & Metals 1 Every nine years 01/01/2029-
12/31/2037
R309-205-
5(3)(a)
Nitrate 1 Yearly 01/01/2025-
12/31/2025
R309-205-
5(4)(a)
Sulfate, Sodium, TDS 1 Every nine years 01/01/2029-
12/31/2037
R309-205-
5(3)(a)
Pesticides 2 Every three years 07/01/2024-
09/30/2024
R309-205-
6(1)(f)
Radionuclides 1 Every three years 01/01/2026-
12/31/2028
R309-205-
7(1)(c)
Volatile Organic
Contaminants 1 Quarterly 07/01/2024-
09/30/2024 R309-205-6(2)
Turbidity 4 Monthly 2 more by
5/30/2024 R309-205-8
WS006 Palmer Well Inorganics & Metals 1 Every three years 01/01/2026-
12/31/2028
R309-205-
5(3)(a)
Nitrate 1 Yearly 01/01/2025-
12/31/2025
R309-205-
5(4)(a)
Sulfate, Sodium, TDS 1 Every three years 01/01/2026-
12/31/2028
R309-205-
5(3)(a)
Pesticides 2 Every three years 07/01/2024-
09/30/2024
R309-205-
6(1)(f)
Volatile Organic
Contaminants 1 Yearly 01/01/2025-
12/31/2025 R309-205-6(2)
Combined Uranium 1 Quarterly 07/01/2024-
09/30/2024 R309-205-7
Gross Alpha, Excl.
Radon & U 1 Quarterly 07/01/2024-
09/30/2024 R309-205-7
Radium-226 1 Quarterly 07/01/2024-
09/30/2024 R309-205-7
Radium-228 1 Quarterly 07/01/2024-
09/30/2024 R309-205-7
TomWard
Page 3 of 3
May 21, 2024
Confirmation Sampling
During the reactivation sampling Turbidity was determined to be 9NTU at the Bicentennial Well
(WS021). This result requires confirmation sampling in accordance with R309-205-8. Please
continue to collect an additional two (2) Turbidity samples from the Bicentennial Well (WS021)
by May 30, 2024. Compliance with the Turbidity MCL of 5 NTU will be based on the average of
the initial and three confirmation Turbidity samples.
Additionally, Uranium was found to exceed its MCL of 30 µg/L in two samples collected from
the Palmer Well (WS006). On April 25, 2024 and May 6, 2024 Uranium was found at levels of
39 µg/L and 31 µg/L respectively. In accordance with R309-205-7, compliance with the
Uranium MCL is based on a running annual average of the total amount of samples collected.
Chlorine Residuals
Additionally, Sandy City is required to monitor the free chlorine residual at the point of entry
(POE) to the distribution system for the Bicentennial Chlorinator + Fluoride (TP021) and the
Palmer Fluoridator + Chlorinator (TP015) at least three times per week. The system must also
complete monthly operational reports for each reactivated chlorinator. Please direct any
questions regarding disinfection monitoring to Luke Treutel at [e-mail] or (385)
258-6084.
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: Tom Ward, Sandy City Water System, [e-mail]
Karen Hoagland, Sandy City Water System, [e-mail]
Fuaad Hararah, Salt Lake County Health Department, [e-mail]
Luke Treutel, Division of Drinking Water, [e-mail]
Mark Berger, Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]