DDW-2024-006474

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

March 4, 2024

Ralph Wing
Allard Ranch Water Co
P.O. Box 720026
Summit, Utah 84772

Dear Mr. Wing,

Subject: RTCR Level 2 Assessment Allard Ranch Water Co UTAH11067

I would like to thank you for taking the time to meet with me on February 27th, 2024, for a Level 2
Assessment (L2) of your water system. Your willingness to accommodate this request is greatly
appreciated.

Observations:

This site visit was triggered by 2 Level 1 assessments in a 12-month period, Routine and Repeat
TC+ EC- samples, August 2023, and December 2023. Source samples were TC-EC- for both
events.
Allard Ranch is a residential subdivision consisting of 16 service connections, a well source, 140
K storage tank, pump station with 4 hydropneumatic tanks to maintain distribution pressure. The
distribution system is 8” C900 mainline with fire hydrants located throughout.

Conclusions:

1. TC + samples were likely caused by stagnant water/old water age in both your storage tank
and your distribution system. Storage tank is an above ground steel tank with dark exterior
paint, this can also contribute to elevated water temperature compounding the stagnant
process.
2. Another potential cause could be your Hydropneumatic Tanks harboring silt and dirt
which have historically been a problem with water systems.

Recommendations:

Ralph Wing
Page 2
March 4, 2024

1. Inspect and Clean Storage Tank ST001 on a regular basis, Disinfect as per AWWA C651
standards as an O& M procedure.
2. Complete a revised RTCR sample site plan, assigning sites that are not at the end of water
mains, submit to DDW.
3. Initiate a Unidirectional System/Hydrant flushing program on a periodic basis, with a goal
of achieving a 2.5 ft per second flushing velocity. (contact RW for assistance)
4. Disinfect and flush Hydropneumatic Tanks on a regular basis, Disinfect as per AWWA
C651 standards as an O& M procedure.
5. Follow sanitary sampling protocol of sufficient flushing and disinfection, using a strong
chlorine-based solution (applying, allowing contact time, flushing, sample collection).

Contact Rural Water Association of Utah for Further Technical assistance or questions on
flushing/sampling procedure: Terry Smith 435-691-0691 [e-mail]

For permitting/engineering questions and review, contact Michael Newberry at [phone],
[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]

Ralph Wing
Page 3
March 4, 2024