DDW-2024-007257

April 22, 2024
Jason Bradford
Cottonwood Mutual Water Company
4000 West Old Highway Road
Morgan, Utah 84050
Subject:Plan Approval, 400,000 Gallon Upper Tank (ST008);
Cottonwood Mutual Water Company, System #15013, File #13645
Dear Jason Bradford:The Division of Drinking Water (the Division) received the plans and specifications from you for the proposed 400,000-gallon Upper Tank on March 12, 2024. Written
review comments were provided to you on March 22, 2024. The Division received the revised plans and specifications on April 10, 2024, and April 15, 2024. This project has met the conditions
for receiving a plan approval.
Plan Approval
Our understanding of the project includes:
The construction of a 400,000-gallon reinforced concrete water storage tank (identified as ST008 in the Division’s database). This tank will provide storage for 291 ERCs in future development
located in upper-pressure zones.
The construction of a valve vault, 6-inch diameter ductile iron pipe (DIP) tank inlet line, 12-inch diameter DIP tank outlet line, 6-inch diameter DIP overflow line, 6-inch diameter
DIP tank drain line, and 4-inch diameter PVC drain line.
A 14-inch diameter transmission line will convey flow from a pump station to the tank and from the tank to a distribution system. The 14-inch diameter transmission line, pump station,
and distribution system will be submitted in a future submittal and are not within the scope of this project.
We have completed our review of the plans and specifications, stamped, and signed byJason Bradford, P.E., dated April 10, 2024, and find they basically comply with the applicable portions
of Utah’s Administrative Rules for Public Drinking Water Systems in R309. On this basis, the plans for the 400,000 Gallon Upper Tank are hereby approved.
This approval pertains to construction only. An Operating Permit must be obtained from the Director before the 400,000 Gallon Upper Tank may be put in service. A checklist outlining
the items required for operating permit issuance is enclosed for your information.Approvals or permits from the local authority or the county may be necessary before beginning construction
of this project. As the project proceeds, a notice of any changes in the approved design, as well as any change affecting the quantity or quality of the delivered water, must be submitted
to the Division. We may also conduct interim and final inspections of this project. Please notify us when actual construction begins so that these inspections can be scheduled.
This approval must be renewed if construction has not begun or if substantial equipment has not been ordered within one year of the date of this letter.
Please maintain a copy of this letter with your permanent records for future reference.
If you have any questions regarding this approval, please contact Rebecca Yoo, of this office, at [phone], or me at [phone].
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
RY/mrn/mdbEnclosures –Operating Permit Checklistcc:Scott Braeden, Weber-Morgan Health Department, [e-mail] Bradford, BT Engineering, [e-mail] Johanson,
Cottonwood Mutual, [e-mail], [e-mail] Yoo, P.E., Division of Drinking Water, [e-mail] 15013 13645 - PA Cottonwood Mutual 400k Tank
Utah Division of Drinking Water ― Checklist for Issuing Operating PermitsWater System Name:System Number: Project Description:File Number:
Items 1 through 8 below must be submitted to the Division and found to be acceptable prior to operating permit issuance (unless a water line project meets the requirements of R309-500-7
and is not required to obtain an Operating Permit).
Distribution lines (not including in-line booster pump stations) requiring Plan Approval may be placed into service prior to submitting all of the following items and receipt of Operating
Permit if the water system has received items 1 and 4 below.☐1.Certification of Rule Conformance by a professional engineer (P.E.) that all conditions of Plan Approval were accomplished,
and if applicable, changes made during construction were in conformance with rules R309-500 through 550☐2.As-built or record drawings incorporating all changes to approved plans and
specifications (unless no changes were made to the previously approved plans during construction)☐3.Confirmation that as-built or record drawings have been received by the water system☐4.Satisfactory
bacteriological samples as evidence of proper disinfection and flushing in accordance with the appropriate ANSI/AWWA standards:
☐ANSI/AWWA C651-14 AWWA Standard for Disinfecting Water MainsTwo consecutive sample sets at least 16 hours apart, none positive (e.g., every 1,200 feet, end-of-line, each branch)☐ANSI/AWWA
C652-11 AWWA Standard for Disinfection of Water-Storage FacilitiesOne or more samples, none positive☐ANSI/AWWA C653-13 AWWA Standard for Disinfection of Water Treatment PlantsTwo consecutive
samples per unit, none positive, no less than 30 minutes apart☐ANSI/AWWA C654-13 AWWA Standard for Disinfection of WellsTwo consecutive samples, none positive, no less than 30 minutes
apart☐5.Water quality data, where appropriate [For example, include raw and finished water data that demonstrate satisfactory performance of the treatment facility; sample should be
taken from a storage tank for residual volatile organic compounds after tank interior re-coating; etc.]☐6.If applicable, all other documentation that may have been required during the
plan review process☐7.If applicable, confirmation that the water system owner has received the O&M manual for the new facility☐8.If applicable, location data of new storage tank, treatment
facility, or source