M36 Water Audits and Loss Control Programs With a clear explanation of the IWA/AWWA water audit methodology and some of the best. AWWA Water Loss Control Committee—leakage management target- .. AWWA Manual M36, Water Audits and Leak Detection, published in and revised. AWWA M Manual: Guideline for Water Industry. Best Management Practices. For Water Loss Control. Began in February Completed in November
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It might take a month or two before you can change the impacts of non-revenue water losses, but I promise you will thank yourself in the long run.
The Value Of Conducting An M36 Water Audit
Quantifying the impacts of water loss extends to both cost implications and water scarcity implications, each with ripple effects to other aspects of water awwq operations. Part of the challenge in calculating non-revenue water losses comes ,36 the fact that some losses are physically or practically invisible. Like what you are reading? With water distribution pipelines representing two-thirds of projected water utility expenditure across the U.
The Water Loss Control Committee and the State of Georgia have already published audited water balance and performance indicators data for named Utilities; see for example North American ILIswhich can now increasingly be compared with aawwa leakage management performance at Global ILIs. Fortunately, the AWWA has a solution in its M36 water audit guidelines and free water-audit software, which provide reliable methodologies for breaking costly old habits.
Relatively little pressure management has been carried out to date in North America, but the M36 Manual recognises, from international case studies and improved predictive concepts, the increasing potential of this approach in North America. Being prepared to identify and minimize both the costs and the side-effects of unchecked water loss can help to break the vicious cycle where unaccounted losses lead to increased stress on a dwindling resource.
States that require full compliance with the M36 audit methodology or rudimentary reporting compliance are shown here Figure 2. The AWWA Water Loss Control Committee, the Technical Review Board members who finalized the Manual, and the many volunteers who drafted, edited and provided the significant and critical commentary essential to updating a manual of this magnitude, are to be congratulated on a considerable achievement and a valuable addition to international NRW management.
According to the AWWA, its free water-audit software was downloaded 7, times between and The AWWA Water Loss Control Committee recommended adoption of the IWA methodology inand since then have been building a substantial foundation for training and implementing a common approach in each of the 50 states in the U.
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Component analysis of real losses has been available and used by consultants for over 20 years, but the Water Research Foundation Leakage Component Analysis LCA Model the first freely available to anyone and is explained in M From The Editor August 24, Here are just some of the topics and step-by-step guidelines covered in the M36 water-audit manual that can help pinpoint water losses and indicate methods for reducing them:. Republished with permission from the Natural Resources Defense Council.
That makes it hard to appreciate the real cost impacts until a complete audit is conducted. When it comes to non-revenue water losses, how many water utilities are in the same boat — knowing that some degree of water loss is occurring, but never quite getting around to the point of quantifying it?
AWWA M36 updated
As ofonly 6 states have mandated use of the M36 methodology, 20 more mandate only rudimentary water-loss reporting, and 24 states have no water-loss reporting mandate at all.
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Still, transmission infrastructure leaks are not the sole area of concern. Answering the question of how your utility is doing starts with establishing an audit performance benchmark, then following up annually with comparative audits. M36 uses progressive thinking and solutions on the journey to more accountable water management in North America. Water use can fall into a variety of categories — revenue-generating, non-revenue-generating, known, and unknown.
Pressure data collected for UARL and ILI calculation for systems in the State of Georgia m336 an average pressure of 76 psi 53 metres with the 91 highest pressure systems having an average of 98 psi 69 metres.
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M36 audit implementation highlights three major priority areas for monitoring:.