city of houston backflow prevention requirements

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. 7. Some appliances have built-in backflow prevention for this reason, but many do not. To learn more, read Introduction to Cross-Connection Control 16. Refer to item #2 above for proper vault lid and frame & cover applications. Provide fence and gate details (drawings) for all types of . The parallel elbows shall be no more than 12 off the centerline of the TEE. Backflow is the reversal in the direction of the normal flow of water in a piping system. Highline Water District (HWD) makes no representation For parallel installations, the TEE shall be placed no more than the service pipe diameter, in inches, from the centerline (or outlet side) of the elbow installed on the riser. If the fire sprinkler service is fully metered (a meter approved by the Water Bureau for fire flow application and billing purposes) a Double Check Valve Assembly (DCVA) or Reduced Pressure Backflow Assembly (RPBA) may be installed depending on sprinkler system type. 9. 11. Backflow prevention devices are installed to protect against cross connection contamination caused by backflow conditions. Post your job request for free and match with local backflow testers in Houston. These will allow for necessary clearance for ladders in single assembly installations. As determined by the Water Bureau, part #8197, 36 X 36 or #8197-Double, 36 X 74 frame and covers may be required. 11. 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). HVK%')dVe%X[oLWR=I Dtrtq3,Vg(&_[N?YG5P[IYH^h\z=d+k,IU%TgrtM%gNYc8-@OiGW.ili\B,|g6 ,~=z. 3. back siphonage. 3. All rights reserved. Reminders are automatically ABPA Certification:If interested in ABPA certification, please contact us for more information. In addition to City Code Title 21 and Title 28, OAR 333-061-0070, Section 14, will apply to all existing premises-isolation backflow assembly installations. We are available by phone, text, and email. Upon installation of the Backflow Prevention device, please provide the following: a. Hours: M-F 7:00-4:00, Copyright 2016 Highline Water District |. Official Cross-Connection Control Program forms: Listed below are links to the official TCEQ Cross-Connection Control Program forms. When a RPBA is installed in a vault or enclosure in a berm or hillside, a horizontal boresight drain to daylight must be provided. This orientation should locate the touchpad near the hinged portion of the door so as not to stress the wire between the touchpad and meter when the door is fully opened. water service customers who are advised to use their own judgment Opportunities posted to governmentjobs.com, Legal and installation requirements for backflow protection, City of Portland general information hotline, Backflow prevention and cross-connection control, Oregon Health Authority (OHA) Cross-Connection Control Requirements, Backflow assembly installation requirements, Submitting backflow assembly test reports, Portland Water Bureau manuals and design standards, install a backflow prevention assembly if there's an existing or potential cross-connection on your premises, immediately have your assembly cleaned, repaired or replaced if not working properly. 4 clearance is required between the wall and the bypass, 24 clearance in front, 12 underneath, 3 at both ends and 36 vertically above the assembly body. Enter your license number (digits only) and scheduling PIN. 234 0 obj <>stream 6. Hire a licensed irrigator. the system pressure has been increased by All rights reserved. prevented by using a backflow-prevention The installation must be compliant with this code and/or any applicable OAR. Highline Water District (HWD) makes no representation regarding the abilities . {a$7@!!3ItPdQOx&V>K2[v:O2&Wi,a/%(&*KR&%lA2JE1"a&3"A DD1NuVU-EVV>}*fx+K!^UP|+Gpr,'H_Z9[9.rrU'A/{R/@8WW?.^Wy1iZ_'~A8UIyO32awJ{'3l}4{?jZF=P|l>}7WQu%XD"R'7s/[. Note: Some features in theweb clientare not supported on Internet Explorer. If suspended from ceilings, pipe hangers designed to carry the full load of the assembly must be installed. Work must be completed prior to temporary or final occupancy being granted by a City of Portland Bureau of Development Services (BDS) Building Inspector. Additionally, all piping for fire sprinkler system backflow assembly installations must be compliant with the local Fire code. This list represents companies that have met the requirements and have submitted the proper documentation to register and . 13. See note below. endstream endobj startxref 10. 1. hbbd``b`A* $XN HqH2} . . Items can be submitted to our office . We've worked on everything from high-rise buildings and hotels to factories and oil platforms, and we have the knowledge and experience to handle any job, big or small . Maintenance requirements include regular testing based on the type of device being used. A sump pump will be required if vaults are unable to be kept free of standing water. The simplest method to prevent backflow is to have your backflow than in its supply, i.e. You may also e-mail your question or comment to PDWS@tceq.texas.gov. The community of Houston is nestled in the beautiful Bulkley Valley amongst some of BC's finest outdoor recreational opportunities. The ladder must be mounted vertically in the entryway of the vault or chamber and be securely anchored at top and bottom. All students registered for this class will receive a copy of the USC 10th Edition. Interior and basement installations must provide drainage for the full rated flow of the relief-valve, or the supply piping must be equipped with an approved Flood Protection Shut Down Valve. a list of State Certified Enter your requirements and local pros will bid on your service, providing a quote to complete your request. Cross Connection Control Backflow Tester Company List. Installations must be compliant with all applicable Title 21 and Title 28 criteria, and those stated herein. Call 520-791-2650 if you would like more information. Bypass meters equipped with touch read register and touchpad or radio signal transmitters. Wires must not encumber the vault opening or ladder. 7. $31.95 for first three; $10.65 each additional. 8. 15. Backflow Test Status Pass Fail. Premises-Isolation assemblies must not be removed, replaced, or relocated without first contacting the Water Bureau Water Quality Inspection group. Austin Water administers a backflow prevention program in conjunction with federal, state and local codes to ensure backflow prevention devices are installed and maintained where backflow may be a risk. 5. assembly tested on an annual basis. A premises-isolation reduced pressure type backflow assembly is required to be installed on all water service connections as listed but not limited to: premises having private wells, water features (swimming pools), geothermal heating & cooling systems, hydronic heating systems, cooling towers, that have access to rivers, lakes, ponds and/or other water sources that can be connected to; are equipped with storage tanks, rainwater-harvesting (excluding those that simply capture rainwater in containers of less than 50 gallons and gravity-feed to landscape), storm-water or groundwater recovery and reuse systems and/or that use, or reuse treated wastewater (grey and/or black-water) on site. City of Temple Public Works Service Center, City of Webster Public Works Dept Service Center. 5. thermal expansion increases the pressure. Adequate drainage: Backflow assemblies must not be installed in locations subject to flooding. A reduced pressure type assembly must be installed on all water service connections to premises with high-rise buildings (high-rise building: where a building is 75-feet or greater above its lowest finished-floor (slab) elevation to top of structure). The bore-sight drain must be in a level horizontal orientation and must be screened off at both ends and not have a lay length of greater than 20-feet. A Double Check Detector Assembly (DCDA) is typically the type of backflow assembly installed on fire sprinkler water services. While mixing a batch of pesticide, a worker pushed a garden hose into the tank until it touched the bottom. In no circumstance may the lower assembly be less than 12 AFF (measured to the lowest point on the assembly) and the higher assembly may not be installed above 5 AFF (measured to the top of the assembly body) unless an OSHA approved permanently mounted platform is installedthat meets the standards as outlined herein. 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. All Rights Reserved. When a RPBA is installed in a vault or enclosure in a berm or hillside, a horizontal boresight drain to daylight must be provided. FAX: 206-824-0806 For example, these and other businesses would be required to install high-grade backflow prevention assemblies and have them tested by a certified tester annually: Another aspect of an effective CCC program is the customer service inspection (CSI). A RPBA must always be installed 12 above finished grade or the 100-year flood-plain, whichever is greater and meet all applicable drainage requirements stated herein. Completing this course also provides continuing education credit for the following licenses: 32-hours of continuing education credits for licensed Backflow Prevention Assembly Testers, 12-hours of continuing education credits for licensed Water and Wastewater Operators, 12-hours of continuing education credits for licensed Landscape Irrigators (LI), 12-hours of continuing education credits for licensed Customer Service Inspectors (CSI), 12-hours of continuing education credits for licensed Water Treatment Specialist, 100-hours of training credit to an applicant for a Plumbing Inspectors license (through TSBPE). 2. A RPBA may required to be installed on any water service that is considered potable and provides for the use of water as a medium for purposes other than potable drinking water. Specific criminal history could negatively impact the ability to receive a TCEQ issued occupational license. Manhole covers are not permitted. Backflow is the unintended flow of water from any domestic, industrial or institutional piping system into a drinking water supply system. By replacing pipes before they break, taking steps to ensure that system pressures do not fall during periods of high demand, and asking for the cooperation of customers when there is a risk that system pressures could fall below safe levels, your public water system operator reduces the risk of backflow. Customer Service Inspection Certificate (. It can be caused by a loss of pressure in the drinking water supply main or by the flow from a pressurised system through an unprotected cross connection.

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