DDW-2024-006075

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 P.E.
Director

February 13, 2024

Barratt Nielson
Big Plains Water SSD - Cedar Point
1777 N Meadowlark Dr Apple
Valley, UT 84737

Subject: Increased Monitoring Requirements for Big Plains Water SSD - Cedar Point: UTAH27089

Barratt Nielson:

According to the Division of Drinking Water’s (the Division’s) records, samples collected on October 26,
2023 from Big Plains Water SSD - Cedar Point’s (the System’s) sources: Jessup Well (WS002) and Well
No.4 (New Cook Well – WS004) indicate that these sources contain levels of Turbidity greater than the
Maximum Contaminant Level of 5 Nephelometric Turbidity Units (NTU). In accordance with R309-205-
8(2), the System must collect an additional four Turbidity samples per source in the month of February
2024 from both the Jessup Well (WS002) and the New Cook Well (WS004). These samples must be
collected by a certified operator from the Washington County Water Conservancy District.

Compliance with the Turbidity standard will be determined by taking the average of the four results. If the
average is greater than 5 NTU, the System will be required to install filtration to reduce turbidity levels. The
routine monitoring frequency for Turbidity will be reevaluated once this determination has been made.

Turbidity alone has no health effects; however, turbidity can interfere with disinfection and provide a
medium for microbial growth. Turbidity may also indicate the presence of disease-causing organisms. These
organisms include bacteria, viruses, and parasites that can cause symptoms such as nausea, cramps, diarrhea,
and associated headaches.

Because of the risk to public health and the length of time it takes to install treatment, the Division is
suggesting the System request to enter into a formal Compliance Agreement Enforcement Order (CA/EO).
This Order will allow the System to remain rated as Corrective Action and allow time to meet the Best
Available Treatment (BAT) while establishing milestones and deadlines that protect customer’s health to
the best of the Safe Drinking Water Act’s ability. Included in the CA/EO will be provisions
regarding the use of Well 59 (WS003) and public notice requirements.

To request this agreement, please contact Colt Smith at [e-mail]. Failure to enter into a
CA/EO may result in the Director issuing other means of formal enforcement, including a Not
Approved order or seeking a court order to protect public health.
Barratt Nielson
Page 2 of 3
February 13, 2024

Below are the current monitoring requirements for the System.

Facility with new
requirements Analyte(s) Required # of
samples
Sampling
Frequency Next Due Date Rule
Reference
WS002 Jessup Well Turbidity 4 Monthly 02/01/2024-
02/2/2024 R309-205-8(2)
Combined Uranium 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Radium-226 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Radium-228 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Gross Alpha, Excl.
Radon & U 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Nitrate 1 Yearly 01/01/2024-
12/31/2024
R309-205-
5(4)(a)
Volatile Organics 1 Yearly 01/01/2024-
12/31/2024 R309-205-6(2)
Sulfate, Sodium, TDS 1 Every Three
Years
01/01/2023-
12/31/2025
R309-205-
5(3)(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)
WS004 Well No. 4 Turbidity 4 Monthly 02/01/2024-
02/2/2024 R309-205-8(2)
Combined Uranium 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Radium-226 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Radium-228 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Gross Alpha, Excl.
Radon & U 1 Quarterly 01/01/2024-
03/31/2024
R309-205-
7(1)(b)
Nitrate 1 Yearly 01/01/2024-
12/31/2024
R309-205-
5(4)(a)
Volatile Organics 1 Yearly 01/01/2024-
12/31/2024 R309-205-6(2)
Sulfate, Sodium, TDS 1 Every Three
Years
01/01/2023-
12/31/2025
R309-205-
5(3)(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)

Barratt Nielson
Page 3 of 3
February 13, 2024

Please send the results of these analyses directly to David Kruse at [e-mail].
Additionally, please contact David Kruse at [phone] if you have any questions or need
assistance.

Sincerely,
Mark Berger
Monitoring and Standards Implementation Manager

cc:
Nathan Lunstad, Utah Division of Drinking Water, [e-mail]
Barratt Nielson, Big Plains Water SSD - Cedar Point, [e-mail]
Jeremy Roberts, Southwest Utah Health Department, [e-mail]
Paul Wright, P.E., DEQ District Engineer, [e-mail]
Colt Smith, Utah Division of Drinking Water, [e-mail]
Mark Berger, Division of Drinking Water, [e-mail]
David Kruse, Division of Drinking Water, [e-mail]
Jauna McGinnis, Apple Valley Big Plains SSD Primary Contact, [e-mail]
Dave Jessop, Washington County Water Conservancy District, [e-mail]
Brandon Robinson, Washington County Water Conservancy District, [e-mail]