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. . . Western States Water Council Water Quality Committee Seattle, Washington July 14, 2005 Reclaimed water = sanitary sewage component Greywater = domestic use, but no "black" water (toilet use) Ag/Industrial = No sanitary sewage, may be used to grow crops. Reclaimed water no longer a "waste" water. Key concepts of the W A requirements: encourage water reuse; promotes integrated agency approach; single set of standards; guidance; procedures; single permit. Permit -- Usually combine permit with NPDES permit (or other permit) if possible. It is an appealable permit. Water Reuse Workgroup - Water quality, water resources, health all involved. Tom Carr. Arizona Wished that they had something as extensive in AZ as in W A. Tom will talk about the water supply side of reuse. AZ is an arid state, and effluent is particularly important as a resource on the water supply side, both for reuse and for environmental uses. Population is increasing - now using 1/3 of water through reuse. Have a large industrial nuclear plant that reuses a lot of water; 50 golf courses - 20-30,000 afper year. Effluent' = 13-15% of the supply for M&I purposes; 5% of total water use = effluent. Still a lot of effluent not being reused. Incentives for reuse: Does not count toward gal/capita/day For golf courses = .6 cents Many are turning to effluent as a reliable supply Effluent creates riparian habitats by putting water into the dry streambeds. They have constructed wetlands. There is a program to take effluent and put it in a river bottom, and can get a recharge permit credit. This is an incentive to keep effluent water in the reach of the stream. A water right is also given if the effluent water is maintained. Flagstaffwells are over 2500 feet deep. It will become more difficult to get new water there. Reuse is important, particularly for golf courses. In Phoenix, they have constructed wetlands. In AZ, if someone releases water, it becomes dominion of the state. Ifa person retains the dominion (through reuse permit), it remains that person's to use into the future with a recharge permit. AZ is a sink for salt. It ends up in effluent treatment plants. If you reuse the water, the salt ends up in aquifer system. Storage is a problem. 3