DDW-2025-002143

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
February 19, 2025

Wade Staples Elkridge Water Company PO Box 1555 Cedar City, Utah 84721

Dear Mr. Staples, Subject: RTCR Level 2 Assessment Elkridge Water Co UTAH13042
I would like to thank Adam Clark for taking the time to meet with me on December 3rd, 2024, for
Level 2 Assessments (L2) of your water system. Your willingness to accommodate this request is greatly appreciated. Observations:

These site visits were triggered by multiple Routine and Repeat TC+ EC+ Escherichia coli (E. coli) samples at different locations throughout your distribution system, November 2024, Well Source WS003 Triggered Sample was also TC+EC+.
The system remained on a boil order until 2 sets (24 Hours apart) of TC-EC- samples were
collected after system was disinfected . The affected area is supplied from WS003 Well Source which pumps to ST002 Storage tank and then Distribution system is pressurized from this tank by PF001 Unit 4 Booster Pump.

Conclusions: 1. TC + EC + samples could be caused by stagnant water/old water age in your storage tank
and your aging distribution system. Storage tanks are above ground steel tanks with dark
exterior paint, this can also contribute to elevated water temperature compounding the stagnant process. 2. Another potential cause could be poor water quality and/or a bacteria growth problem from your well sources. Triggered Sample from WS003 was TC+EC+.
Wade Staples Page 2
February 19, 2025

Recommendations: 1. Initiate a periodic O & M disinfection and flushing of Well, Storage tank, and Distribution
System, following AWWA C651 standards.
2. Follow sanitary sampling protocol of sufficient flushing and disinfection, using a strong chlorine-based solution (applying, allowing contact time, flushing, sample collection).

3. Inspect and Clean Storage Tanks on a regular basis, Disinfect as per AWWA C65 standards as an O&M procedure if possible.
4. Flush distribution system, when stagnant low water usage is present to avoid old water age.
Contact Rural Water Association of Utah for Further Technical assistance or questions on
flushing/sampling procedure: Terry Smith 435-691-0691 [e-mail] Feel free to contact me at [phone] or [e-mail], with questions or if we can be of
further assistance.
If you have any questions regarding the work performed, please contact Field Services Section manager, Ryan Dearing, at [e-mail] [phone].
Sincerely,
Brian Pattee Environmental Scientist
Utah Division of Drinking Water

Enclosures: Assessment Report cc:
Brian Pattee, Division of Drinking Water, [e-mail] Sitara Federico, Division of Drinking Water, [e-mail]
Paul Wright, DEQ District Engineer, [e-mail] Jeremy Roberts, Southwest Utah Health Department, [e-mail]
Wade Staples Page 3
February 19, 2025