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HomeMy WebLinkAboutDDW-2024-013064 November 5, 2024 Bygnal Dutson Virgin Sky Water System 1620 Stone Cliff Drive St. George, Utah 84790 Subject:Plan Approval (After the Fact), 550 Gallon Tank (ST003), 550 Gallon Tank Booster Pump (PF002); and TemporaryException to R309-550-8(2), (3), and (5), Installation of Water Mains - Bedding, Backfill and Burial Cover;Virgin Sky, System #27108, File #15287 This Temporary Exception Expires on December 31, 2027. Dear Bygnal Dutson:Division of Drinking Water (the Division) received the plans and specifications for the After the Fact Plan Approval for the 550-gallon tank (ST003) and the 550 Gallon Tank Booster Pump (PF002) from Karl Rasmussen, Pro Value Engineering, on September 11, 2024. Written review comments were provided to you and your consultant on October 7, 2024. The Division received the revised plans and specifications on October 7, 2024. This project has met the conditions for receiving a plan approval. On October 7, 2024, the Division of Drinking Water (the Division) also received your request for an exception to rule for sections R309-550-8(2), (3), and (5), Installation of Water Mains, regarding Bedding, Backfill and Burial Cover of water lines. According to these rules, the pipe should have proper bedding and backfill to protect it from damage and enough burial cover to protect the water line from freezing. Plan Approval Our understanding of the project is a 550-gallonNorwesco tank and booster pump that had been installed without previous plan approval to deliver water to a new short-term rental located at a higher elevation in the water system These were discovered during the sanitary survey on June 20, 2024. The booster pump is a 2-horsepower pump that pulls water from the existing system and delivers water to the 550-gallon tank. The pump has a 17 gallon per minute (gpm) capacity and will be located in an enclosure with drainage and pressure gauges (identified as PF002 in the Division’s inventory). The 550 Gallon Tank (identified as ST003 in the Division’s database) is a Norwesco tank that meets ANSI/NSF 61 certification and will be modified with an air vent, overflow and screen, and a new customized shoebox style hatch. We have completed our review of the plans and specifications, stamped, and signed byKarl Bradley Rasmussen, P.E., dated October 7, 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 550 Gallon Tank and 550 Gallon Tank Booster Pump are hereby approved. This approval pertains to construction only. An Operating Permit must be obtained from the Director before these modifications to these facilities 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.Temporary Exception to R309-550-8(2), (3), and (5) The basis for your request for an exception to rule for sections R309-550-8(2), (3), and (5), Installation of Water Mains, regarding Bedding, Backfill and Burial Cover of water lines is that due to the rocky terrain and cliff that the pipe must traverse, the pipe is not able to be buried from the new booster pump and 550 Gallon Tank. The only feasible installation method is above ground. You propose installing the water line using either of the following methods. Both methods will adhere to industry standards for above-ground installations. Steel Pipe Installation: A 1.5-inch diameter steel pipe installed above ground. The steel pipes will be securely mounted above ground using appropriate supports to ensure stability and to prevent damage. Encased Existing Pipe: Encasing the existing 2-inch poly water lines within a 4-inch or 6-inch diameter ductile iron pipe (DIP). Encasing the two existing pipes will provide additional protection and support for the water line while accommodating the challenging terrain. On this basis, an exception to rule for sections R309-550-8(2), (3), and (5), Installation of Water Mains, regarding Bedding, Backfill and Burial Cover. This Temporary Exception expires on December 31, 2027. You must inspect this pipe annually to ensure the above ground installation and supports are still in good condition. A log of these inspections must be maintained. You will be required to re-submit an exception request along with confirmation that all conditions outlined in this temporary exception have been fulfilled and obtain an exception renewal prior to December 31, 2027 Exceptions granted by the Division include an expiration date to ensure that the basis and conditions for granting the exception are verified periodically and that the drinking water quality remains protected. After receiving your request, the Division will determine whether this exception can be re-issued. This Temporary Exception may be rescinded any time if new evidence indicates that the conditions of this exception are no longer being met or a public health risk exists due to this exception.IPS PointsYour water system currently has 50 IPS points (G001) related to having unapproved facilities in service in the system. This plan approval letter will allow you to move forward with correcting and modifying these facilities for use in the water system. Once an operating permit has been issued, these points can be removed. Please contact Jennifer Yee at (385) 515-1501 or jyee@utah.gov for questions related to your water system’s IPS report or deficiencies. Please maintain a copy of this letter with your permanent records for future reference. If you have any questions regarding this approval please contact J. Paul Wright, P.E., DEQ Southwest District Engineer, at (435) 986-2590, or Michael Newberry, P.E., Permitting and Engineering Manager, at (385) 515-1464. Sincerely, Russell Seeley, P.E. Assistant Director JPW/mrn/mdbEnclosures –Operating Permit Checklistcc:Jeremy Roberts, Southwest Utah Public Health Department, jroberts@swuhealth.govJ. Paul Wright, P.E, DEQ Southwest District Engineer, pwright@utah.govBygnal Dutson, Virgin Sky, bygnal@gmail.comKarl B. Rasmussen, P.E., PROVALUE Engineering, Inc., karl@pv-eng.comJennifer Yee, Division of Drinking Water, jyee@utah.govNagendra Dev, Division of Drinking Water, ndev@utah.govPWright 27108 15287 PA and EG 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