LPA 2021-108 - Laserfiche WebLink

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Unaccounted for Water Conservation and utility staff work cooperatively with relevant departments/ divisions to identify and account for water produced versus water delivered to the NMB Water Service Area customers. The NMB Water quantify and track non -revenue water loss on a monthly basis. As negative trends are identified, conservation and utility staff assist in problem solving activities. Quantitative and financial methods for monitoring aggregate water use are also employed to readily identify disparities in water production versus water delivery. Metering Practices Accurate metering is essential to the NMB Water's financial and production accountability. Conservation and utility staff work cooperatively with related departments/ divisions to ensure proper meter placement and replacement, accuracy and monitoring. The NMB Water implements an on-going meter accuracy program throughout the distribution network. Although most 5/8 meters are completely changed out either through the previous meter replacement program or through the AMR meter replacement program, other meters may be repaired and/ or rebuilt to improve accuracy. The primary purposes of this BMP are to achieve and maintain greater water use metering accuracy and to reduce non -revenue water loss. NMB Customer Service assessed meter service length for accounts they service daily. Meters and Backflow Division also assess meter service lengths on a case- by -case basis. Implemented through the department's Meters and Backflow Division, 2,500 meters were targeted annually to maintain a length of service no more than 10 years. This program was carried out by NMB until 2009. The NMB Water continues to look to find ways to conserve water through Demand Management. Since 2009, NMB Water developed and implemented an Automatic Meter Reading (AMR) Program. This program shall track consumer's water usage and detect leaks in the user's system. Once detected, the consumer will be notified. This program will also be used to track the efficiency of various BMPs that have been implemented. Leak Detection Water Production/ Distribution & Pipeline System leaks can be identified as main breaks or during other operational practices and miscellaneous occurrences. On a quarterly basis, NMB Water_ performs a leak survey on a portion of water distribution system to identify any leaks in piping network. At the end of the survey a report is prepared to quantify the leaks with estimated amount of water loss identified. A leak detection program began in 2014 to pinpoint hard to detect leaks in large diameter water transmission mains. Today NMB Water currently employs 11,000 leak sensors within the pipeline system. Automated Hydro-Flushers NMB Water employs ten automated Hydro Flushers in designated portions of the distribution network. The primary purpose is to improve and maintain water quality through limited, automatically scheduled, timed discharges used during the flushing process. Hydro Flushers provide water savings as opposed to traditional hydrant flushing by automatically stopping the 17