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HomeMy WebLinkAboutWTR2703142_6NOTICE OF CONSTRUCTION OF WATER MAINS IN TALBOT HILL NEIGHBORHOOD Dear Resident: The City of Renton is replacing water mains in your neighborhood to improve fire protection and water quality. The work includes installing additional fire hydrants and replacing water service lines. A map showing the location of these improvements is provided on the back of this notice. The City has hired Buno Construction, LLC to construct this project. The project will begin in June 2004 and is scheduled for completion by the end of August 2004. Access to your neighborhood will be maintained at all times during construction of the project. The contractor will notify you in advance of beginning the project and will work with you to address any temporary closure of your driveway during the installation of the water line. POTENTIAL IMPACTS ON YOUR HOT WATER TANKAND HOUSE PLUMBING As part of the replacement of the service line in the street, the contractor will install a check valve behind your water meter. The check valve prevents water in your household plumbing from flowing back into the City's water main. As a result, water pressure may build up in your hot water tank as the water expands during heating. In order to avoid excessive pressure buildup in your hot water tank, you need to inspect your hot water tank to verify that it is equipped with a pressure and temperature relief valve. If it is not present, you need to install one on the tank. Please see the enclosed brochure for more information regarding the installation and function of a pressure and temperature relief valve. You can install the pressure and temperature relief valve yourself by following the manufacturer's instructions, or you can have the device installed by a plumber. You may notice an increase in pressure and volume of water at your taps. The water pressure in the City's mains serving your neighborhood varies between 50 and 100 pounds per square inch. The Uniform Plumbing Code requires that a pressure reducing valve be installed on a water service having pressure greater than 80 pounds per square inch. The City's Water Maintenance Department will check the water pressure at your meter and will notify you if the pressure is above 80 pounds per square inch. High water pressure can damage your house plumbing and may cause banging water pipes and dripping faucets. You can install the pressure reducing valve yourself or have it installed by a plumber. We would like to thank you in advance for your patience during this project. If you have any questions or comments about this project, please contact: Rick Moreno City of Renton Project Manager (425) 430-7208 Abdoul Gafour City of Renton Water Utility Supervisor (425) 430-7210 HAFile Sys\WTR - Drinking Water Utility\WTR-27 - Water Project Files\WTR-27-3142 Talbot Hill Phase I\PUBLIC CORRESPONDENCE\notice-to-res idents.03 doc.doc\AG\tb THERMAL EXPANSION ABSORBERS , 91 Prevents Unnecessary Relief Valve Operation Eliminates Lost BTU's and Energy Waste Lowers Fuel Costs Ends Messy Floors and Relief Valve Spillage With the increase of code requirements for backflow preventers on water heaters, thermal expansion of water in the storage tank is becoming a major concern. When demand is put upon the system, hot water is drawn from the tank. Cold water from the supply line enters the tank to replenish it. Once the tank is filled, the colder water is heated to provide hot water for the demand cycle. With the installation of a backflow preventer (or check valve) on the supply line, the closed delivery fixtures, the tank and the system piping form a closed system under pressure. As the water is heated, thermal expansion occurs. Pressure increases until the relief valve opens and the expanded water "spills" from the tank. This represents wasted BTU's and energy. The thermal expansion absorbers are designed to eliminate this problem by providing control of maximum pressures at a level below the relief valve setting. And also by providing an additional space in the system to accommodate the increased volume of water created by thermal expansion, returning it to the system when delivery is demanded at the outlet fixtures. Maximum pressure is kept well below the relief valve setting by the thermal expansion absorbers with its precharged air chamber that is permanently separated from system water. The relief valve does not open and "spilling" is eliminated. The compact, low cost, easy to install Model ST-12, shown above, controls the thermal expansion of most home water heaters up to 120 gallons.* Requires no maintenance. rlxiURe oreN CWe SACK FLOW PREVENTER OPEN ,m• r a0• F FIXTURE CLOSED CWs SACK FLOW PREVENTER CLOSED ,p0•r SPILL WASTES BTU's 1 WITHOUT ,Tn• r ar"g" CL F CW S ---f-- SACK FLOW PREVENTER CLOSED THERMAL I NO SAVES STU'S oR'SO'ss°en" SPILL WITH +m r *For water supply pressure over 80 lb r. or water heating operating temperatures above 160DF., other modelrare available. City of Renton 1055 S Grady Way Renton, WA 98055 PLANNING/BUILDING/PUBLIC WORKS - UTILITY SYSTEMS TO PROTECT YOUR HOME AND FAMILY FROM THE POSSIBILITY OF A WATER HEATER EXPLOSION, YOU SHOULD CHECK YOUR HOT WATER STORAGE TANK TO MAKE SURF. THAT IT HAS A "TEMPERA- TURE AND PRESSURE RELIEF VALVE". 1F YOUR WATER HEATER IS NOT EQUIPPED WITH THIS VALVE, READ ON. Why should I be concerned now, when I have lived in the same house with the same water heating system for many years? To ensure the quality of your drinking water, the Utilities Division of the City of Renton is: 1. Systematically replacing old galvanized iron pipes which connect the City water main in the street to the water meters servicing homes and businesses, and 2. Installing backflow prevention devices at each meter: In the past, before relief valves were required, if your system overheated or built up excessive pressure, the hot water could flow back through the pipes into the City water main. While backflow prevention devices reduce the possibility of contamination of water in the city water mains, it also means that your hot water can no longer flow back through the pipes into the City water main. Therefore, introduction of these backflow prevention devices makes it critical that your hot water tank be equipped with the temperature and pressure relief valves since overheated water will have no place to go. What is a "temperature and pressure relief valve? A temperature and pressure relief valve is a safety device installed on water heaters which can prevent injury, hazard to life and damage to property resulting from an explosion. In the event that excessive temperature or pressure develops in a water heater, the relief _valve opens automatically, discharges hot water through a discharge pipe into an open drain. Cold water flows into the system, cools dmvn the water remaining in the tank and relieves the pressure. What causes a water heater to explode? The basic cause of hot water storage tank explosion is overheating or excessive temperature. Superheated water expands, creates pressure in a closed storage tank and, if there is a weakness in the tank or corrosion is present, the tank may explode. E,actly what should I look for? To be certain that your water heating system meets building code requirements, look for a temperature and pressure relief valve similar to the one illustrated in Figure 1. It may be installed on the top of your water tank or on the side. (See Figure 2.) Attached to the temperature and pressure relief valve should be a tag which is marked with maximum pressure and temperature standards for your water heater. Make sure that the relief valve is connected to a discharge pipe which will carry water to within 6" of a suitable open drain. I checked my hot water tank and it is not equipped with such a device. Tell me what to do. - f-31 IF FIG. 2 TEMPERATURE ✓!. PRESSURE RELIEF VALVE RELIEF VALVE / o DISCHARGE LINE.ti_ TO WITHIN B' OF SUITABLE OPEN DRAIN >I' II sill NOTE: RELIEF VALVE LOCATION ON SIDE OR TOP OF HEATER, DEPENDING ON LOCATION. Go to your 1i hardware sto look for a pa that says "ter ture and pres relief valve." purchase pric_ _ approximately $6 to $10. Can I install it myself? Yes. There are instructions on the regulator carton, but if you are uneasy about installing it, a plumber can install it quickly and safely for you. Is a permit required to install the device? No. I qualify for the City-s low income elderly and/or handicapped water rates. Can the City help me? If your hot water tank requires a new temperature and pressure relief valve and you qualify under the low income elderly and/or handicapped water rates, the City will install one for you at no cost. I want more information! Call the City of Renton's Water Shop at 425-430-7400. C I i YOr RElN 1 ON Kathy Keolker-Wheeler, Mayor PlanningBuilding/PublicWorks Department Gregg Zimmerman P.E., Administrator SECOND NOTICE OF CONSTRUCTION OF WATER MAINS IN TALBOT HILL NEIGHBORHOOD Dear Resident: The City of Renton will start replacing water mains in your neighborhood to improve fire protection and water quality. The work includes installing additional fire hydrants and replacing water service lines. A map showing the location of these improvements is provided on the back of this notice. The project will begin on June 1, 2004, and is scheduled for completion by August 31, 2004. Construction hours will be from 7:00 a.m. to 5 p.m. on weekdays, with no work occurring on weekends and holidays. Access to your neighborhood will be maintained at all times during construction of the project. The contractor will notify you in advance of beginning the project and will work with you to address any temporary closure of your driveway during the installation of the water line. The following list of contact persons and phone numbers are provided to assist you with questions and to report problems that may occur during construction: City of Renton Water Utility Engineering Rick Moreno Project Manager (425) 430-7208 rmoreno(a,ci.renton.wa.us City of Renton Construction Inspector Steve Pinkham (206) 999-1832 Buno Construction, LLC Snohomish, WA Brad Ballard Project Superintendent (206) 423-4514 Buno. Construction, LLC Dan Buno Project Manager (206) 423-4512 To report loss of water service or a broken water main after normal business hours or on weekends, please contact the City of Renton Police Department at (425) 430-7500. Thank you for your patience during this project. HA\File Sys\WTR - Drinking Water Utility\WTR-27 - Water Project Files\WTR-27-3142 Talbot Hill Phase hPUB10 rnuur_c�n nF�r�F�� i f; P_f _.P�; to �� doAAGtp E N T O N 1055 South Grady Way - Renton, Washington 98055 ® This paper contains 50 % recycled material, 30% post consumer AHEAD OF THE CURVE ,} CITY OF RENTON Planning/Building/PublicWorks Department Kathy Keolker-Wheeler, Mayor Gregg Zimmerman P.E., Administrator NOTICE OF CONSTRUCTION OF WATER MAINS IN TALBOT HILL NEIGHBORHOOD Dear Resident: The City of Renton is replacing water mains in your neighborhood to improve fire protection and water quality. The work includes installing additional fire hydrants and replacing water service lines. A map showing the location of these improvements is provided on the back of this notice. The City has hired Buno Construction, LLC to construct this project. The project will begin in June 2004 and is scheduled for completion by the end of August 2004. Access to your neighborhood will be maintained at all times during construction of the project. The contractor will notify you in advance of beginning the project and will work with you to address any temporary closure of your driveway during the installation of the water line. POTENTIAL IMPACTS ON YOUR HOT WATER TANK AND HOUSE PLUMBING As part of the replacement of the service line in the street, the contractor will install a check valve behind your water meter. The check valve prevents water in your household plumbing from flowing back into the City's water main. As a result, water pressure may build up in your hot water tank as the water expands during heating. In order to avoid excessive pressure buildup in your hot water tank, you need to inspect your hot water tank to verify that it is equipped with a pressure and temperature relief valve. If it is not present, you need to install one on the tank. Please see the enclosed brochure for more information regarding the installation and function of a pressure and temperature relief valve. You can install the pressure and temperature relief valve yourself by following the manufacturer's instructions, or you can have the device installed by a plumber. You may notice an increase in pressure and volume of water at your taps. The water pressure in the City's mains serving your neighborhood varies between 50 and 100 pounds per square inch. The Uniform Plumbing Code requires that a pressure reducing valve be installed on a water service having pressure greater than 80 pounds per square inch. The City's Water Maintenance Department will check the water pressure at your meter and will notify you if the pressure is above 80 pounds per square inch. High water pressure can damage your house plumbing and may cause banging water pipes and dripping faucets. You can install the pressure reducing valve yourself or have it installed by a plumber. We would like to thank you in advance for your patience during this project. If you have any questions or comments about this project, please contact: Rick Moreno City of Renton Project Manager Abdoul Gafour City of Renton Water Utility Supervisor (425) 430-7208 (425) 430-7210 7 1055 South Grady Way - Renton, Washington 98055 R E N T O N ® This paper contains 50 % recycled material, 30 % post consumer AHEAD OF THE CURVE