DDW-2024-010129

August 20, 2024
Tracy Hobart Feltner
Central Iron County WCD
88 East Fiddlers Canyon Road
Suite A
Cedar City, Utah 84721
Subject:Plan Approval, Lower Reservoir Recoating Project (ST002);
Cedar Highlands Subdivision, System #11042, File #15947
Dear Tracy Feltner:The Division of Drinking Water (the Division) received the plans and specifications for the proposed Lower Reservoir Recoating Project from you on August 2, 2024.
This project has met the conditions for receiving a plan approval.
Our understanding of the project is that NW Tank Lining and Inspection, Inc. (NWTLI) will be performing the recoating of the interior of Lower Reservoir (ST002). They will clean the
tank, abrasive blast, and clean the tank again before applying an epoxy coating. The coating to be applied is Sherwin Williams MACROPOXY 5500LT POTABLE WATER EPOXY Certified to NSF/ANSI
61 standards. Once applied, the product will be cured to its specifications. After sufficient cure time has been allowed, the coating will be inspected for proper coverage and quality.
Water operators will then disinfect the tank, flush the tank, and take Bacteriologic and VOC samples.
We have completed our review of the plans and specifications, dated January 16, 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 Lower Reservoir Recoating Project are hereby approved.
These following items are important in a tank recoating project such as this:
1.Use only ANSI/NSF 61 certified coating material.
2.Provide forced air ventilation for curing.
3.Make sure the ambient temperature and curing duration specified by the coating manufacturer are followed during the curing process.
4. After the coating is fully cured, do a thorough flushing. We require a clean VOC sample from the tank before an Operating Permit can be issued for the tank recoating project (as shown
in the OP checklist.).
This approval pertains to construction only. An Operating Permit must be obtained from the Director before Lower Reservoir (ST002) 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, 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.
If you have any questions regarding this approval, please contact J. Paul Wright, P.E., DEQ Southwest District Engineer, at [phone], or me at (385) 515‑1464.
Sincerely,
Michael Newberry, P.E.
Permitting and Engineering Support Manager
JPW/mrn/mdbEnclosures –Operating Permit Checklistcc:Jeremy Roberts, Southwest Utah Public Health Department, [e-mail]. Paul Wright, P.E., DEQ Southwest District Office,
[e-mail] Nielson, P.E., Ensign Engineering, [e-mail] Feltner, Central Iron County WCD, [e-mail] McKee, Central Iron County WCD, [e-mail]
11042 15947 ST002 Recoat PA
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