DDW-2025-001307

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
January 10, 2025

Ryan Ellsworth 4501 S 2700 W P.O. Box 148250 Salt Lake City, UT 84114

Dear Mr. Ellsworth, Subject: RTCR Level 2 Assessment for Pines Highway Rest Stop Utah09010
I would like to Thank Chris Harrison for meeting with me on October 16th, 2024, to conduct the
Level 2 Assessment (L2) of this water system. Your cooperation in facilitating this assessment is greatly appreciated. Observations:
The assessment was prompted by two Level 1 assessments within a 12-month period, August 2023 Routine and Repeat TC+EC- samples, July 2024 Routine and Repeat TC+EC- samples. Well source sample during this event was TC+EC-.
System Indicated a contractor had hit their main line by their well which supplies water to storage tank, causing dirt and debris to enter line and continue to tank. This was at the same time as the
July 2024 event.
Pines Highway reststop consists of a well source which pumps to an underground storage tank and is repressurized by a booster pump into the distribution system which is a small building with a mens and womens restroom and 2 drinking fountains, the mechanical room also has a
hydronematic tank and a mop sink. System is year around.
Routine samples are collected from the mop sink and the repeats from the faucets in the womens and mens restroom, these faucets are pressure activated and would only stay on for a few seconds.

Ryan Ellsworth Page 2
January 10, 2025
Conclusions:
1. The TC+EC- samples in July 2024 were likely due contamination from contractor breaking line coming from well to storage tank.

2. Event in August 2023 is likely due to premise plumbing fixtures where Routine and repeat samples are collected and the lack of good disinfection techniques.

3. The Mop sink faucet threads and vacuum breaker were both dirty with hard water build up
and could have been the pathway for the TC + Routine samples, The repeat TC+ samples
from the restroom faucets could have been from the faucet itself if the faucet was not properly flushed and disinfected. Hydronematic Tanks historically harbor silt and need to be flushed and cleaned periodically.
Deficiencies: None were assigned during this assessment.

Recommendations: 1. Conduct disinfection and flushing of the Tanks, distribution system in accordance with
AWWA C651 standards, periodically, at least annually.
2. Follow RTCR and Ground Water Rule for repeat and triggered source sampling after a Routine TC+ sample. If you’re unsure about the follow-up sampling process, contact
DDW for guidance.
3. Follow Sanitary Sampling Protocol: Ensure that sampling locations are properly flushed and disinfected using a strong chlorine-based solution. This includes applying the solution, allowing adequate contact time, flushing the site, and collecting the sample.
Contact Rural Water Association of Utah for further technical assistance or questions on
flushing/sampling procedures: 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].
Ryan Ellsworth Page 3
January 10, 2025
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] Jeremy Roberts, Southwest Utah Health Department, [e-mail]
Paul Wright P.E., DEQ DE, [e-mail]