If the available area between a building and the property line is adequate (determined by the Bureau), the vault, chamber, or enclosure for the type of backflow assembly required must be installed outside the confines of the building or structure. A RPBA must be installed on all service connections to industrial premises where complex (degree of complexity to be determined by the Water Bureau) intricate plumbing systems exist. In addition to this the tester is held accountable to not alter the design, material or operational characteristics of a backflow prevention assembly during repair or maintenance without prior consent of the City of Houston. Normally, water travels in one direction, from treatment plants, through water mains, then to each customers service connection. 3. Only commercially manufactured prefabricated insulated outdoor enclosures are approved. Each TMR must include: BPA physical address and location on the premises An inspection fee must be paid to the Water Bureau prior to replacement of an existing assembly or newly installed assembly on a dedicated fire service. A reduced pressure type backflow assembly will be required on services to premises with piping systems adjacent to waterways that may be subject to immersion due to periods of highwater incidents. The Cross-Connection Control Subcommittee advises us in this effort. A webcam or HD webcam - built-in, USB plug-in, or: An HD cam or HD camcorder with a video-capture card, Virtual camera software for use with broadcasting software like OBS or IP cameras. | TRAIL Statewide Archive If suspended from ceilings, pipe hangers designed to carry the full load of the assembly must be installed. Additional installation requirements for vaults and enclosures. It is recommended when 2 and 1-1/2 Double Check Valve Assemblies (Excludes fire service assemblies, see information under fire sprinkler services) are installed below grade the Carson Industries plastic box #1730-18 be used or equivalent. is booked, canceled, or If your property or business type is not included in the above list and you have a specific question about your legal requirements, please call 311 to have your inquiry directed to DEP. Upon job completion, the provider uploads service details to SwiftQuote, and you can either pay online via credit card or offline directly to the provider. All horizontal and vertical runs of pipe prior to an assembly may be required to be sleeved with schedule-40 PVC pipe. Retrofit/Replacement backflow assembly installations must meet current State and City installation requirements. Fire systems that incorporate the use of storage tanks must be equipped with a RPDA and are required to be installed at the service connection/point-of-delivery to the premises as outlined herein. The drain must never be less than 12 above the flood elevation of a water source, swale or any other catchment subject to overflow/flooding. For parking lot, driveway, loading dock applications and/or heavy commercial traffic applications, a minimum of EJ USA Inc. #8217, 36 X 36 or #8217-Double 36 X 74 frame and covers or equivalent must be used. Highline Water District (HWD) makes no representation All wiring from the touchpad to the bypass meter must be insulated 1 pair solid 22 AWG copper wires secured so as not to interfere with the operation and maintenance of the backflow assembly. Licensed BPA testers are also listed in our, TCEQ requires you to have a licensed BPA tester check the BPAwhen it is installed on your irrigation system. The airgap must be at least twice the inside diameter of the relief-valve, measured vertically above the top of any drain or receiving vessel. accept any responsibilities for the actions or performance of such The platform will need to provide for 6-feet of vertical headroom. 3) Annual registration fee of $100.00. Show the hose bib(s) in pool area. As determined by the Water Bureau, part #8197, 36 X 36 or #8197-Double, 36 X 74 frame and covers may be required. mandate a series of measures and backflow prevention devices to Cross Connection Control Backflow Tester Company List. The tester's role is to verify the proper operation of the assemblies. Installing an approved backflow prevention assembly and testing it regularly helps protect the water supply from the dangers of cross contamination. Backflow assemblies installed on water services that enter buildings with subgrade floors must conform to the following: Enter a building perpendicular to the centerline of the city water service and at an elevation as determined by the depth of the city water service at the R.O.W. REDUCED PRESSURE PRINCIPLE ASSEMBLY. All exposed piping inside enclosures must be insulated with commercially manufactured closed-cell pipe insulation or a heat source must be provided. Wires must not encumber the vault opening or ladder. All applicable RPBA installation criteria will apply. If installed greater than 24", assemblies must be installed in a precast concreate vault that meets vault clearance standards as stated herein. In each of these cases, if backflow happens, your households water lines could be contaminated. Backflow Prevention FAQs. Effective against backpressure backflow and back-siphonage and may be used to isolate . To schedule an inspection, you will need the Permit Number, Job Address, and Inspection Code. 5. $31.95 for first three; $10.65 each additional. Some appliances have built-in backflow prevention for this reason, but many do not. Water delivery relies on pressure; it always takes the path of least resistance as it travels through the water system from high to low pressure areas. The relief-valve must be located 12 above finished slab elevation. endstream
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<. How Cross-Connection and Backflow Can Lead to Contaminated Water, TCEQ's regulations for irrigation systems, database of licensed Customer Service Inspectors, Cross-Connection Control (CCC) Subcommittee, Table Listing Common Cross-Connection Hazards, Recommended Practice for Backflow Prevention and Cross-Connection Control, Foundation for Cross-Connection Control and Hydraulic Research, Guide to Cross Connection Protection Devices and Assemblies: Application and Selection, Rules and Regulations for Public Water Systems. 9. most obvious case, a toilet flush cistern and its water supply must To protect public health, our Cross-Connection Control (CCC) and Backflow Prevention Program is committed to helping you protect your drinking water system from potential contamination. Above ground enclosure installations may have clearances less than those mentioned for vault installations, provided they are equipped with removable panels, doors and tops that create clearances equal to or greater than those described herein. The drain must discharge to finished grade and/or be above the 100-year flood plain, whichever is greater. Fax - 941-365-4840 . Phone: 206-824-0375 This reversal of flow direction is known as backflow. Your public water system must require a CSI to be performedunder the following circumstances: Water providers notify their customers that a CSI is required. or drained down. testers contained on this list. Applications . {R/ONU1#>he I5ce;, The RPDA must be installed at the service connection/point-of-delivery to the premises as outlined herein and as defined by OAR Chapter 333-061-0020. Hours: M-F 7:00-4:00, Copyright 2016 Highline Water District |. Permit must be obtained by a master plumber or irrigatorregistered with the City of Houston. Required permits must be obtained and associated fees be paid prior to installing a premises-isolation backflow assembly. Note:TCEQ has adopted the University of Southern California (USC) 10th Edition Manual of Cross-Connection Control as the standard for backflow prevention assembly testing procedures and this manual is now required for all students attending this class. Note: A Reduced Pressure Detector Assembly (RPDA) is required to be installed where; storage tanks are provided, if the structure is considered a high-rise (requirement stated herein) if supplying marinas, moorages, premises having docks and piers, when rainwater-harvesting, storm-water and/or groundwater recovery and reuse systems are installed and/or that use, or reuse treated wastewater (grey and/or black-water). Finding a reliable backflow tester doesnt have to be a risky or time-consuming process. RHA90C}"E U
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Assemblies approved to be installed inside buildings or structures must be located at the water riser/supply pipe. Back-siphonage backflow caused by a negative pressure (i.e., a vacuum or partial vacuum) in the drinking or public water system. Touchpads not installed in vault doors or on a building face must be installed using the Brooks #37, 12 X 20 box w/T&R lid. Emergency: 206-824-0375 The simplest method to prevent backflow is to have your backflow assembly tested on an annual basis. Adequate drainage: Backflow assemblies must not be installed in locations subject to flooding. Please include Cross-Connection/Backflow Prevention in the subject line of your e-mail. the system pressure has been increased by Get listed and meet new customers. forcing it into a clogged gutter, downspout, or sewer pipe to flush out the clog, connecting it directly to a hose-end sprayer to apply pesticide or fertilizer to your yard, connecting it to a soap-and-brush attachment to wash your car, boat, or siding, letting the end of the hose lie in a puddle or pool of water on the ground. For this reason, all certified backflow prevention assembly testers are responsible for the accuracy of their field-testing and of their Test and Maintenance Reports. All vaults and enclosures for backflow assemblies must be kept free of any debris and/or objects that interfere with these installation requirements and those applicable to OAR 333-061-0071. This applies to all below grade new service and retrofit of existing service installations. A negative or reduced pressure in the supply piping causes backsiphonage much the same way as drinking through a straw. Installation Inspection Request For horizontal installations, and for assemblies which are not approved for vertical up installation, the riser must be equipped with a single 90-degree elbow and the assembly is to be no more than the pipe diameter in inches beyond the centerline (or outlet side of the) elbow to accommodate horizontal installations, excepting only the addition of a wye-strainer, flood control shut off valve or other, necessary appurtenance. Official Cross-Connection Control Program forms: Listed below are links to the official TCEQ Cross-Connection Control Program forms. The Installer/Contractor will request a (Code418) inspection via phone by calling the Voice Permits (IVR) at 817-392-6370 or through the City of Fort Worth Development Services Department at 817-392-2222.