2015-02-11 CC Packet - Laserfiche WebLink

Home Browse Search

Draft North & East Metro Groundwater Management Area Plan 4-11 Objective II. Water Conservation Water appropriation permits incorporate water conservation so the permitted volumes are reasonable and for a beneficial use. Explicit conditions may also be placed on water-appropriation permits that refer to conservation practices appropriate to a specific use.Additional water-use data reporting, supplemental to the monthly appropriation volumes, is currently only required for municipal water systems. Municipal systems include conservation goals in their water supply plans.Some permits for golf course irrigation and other uses also include conservation requirements as permit conditions. Municipal Systems Minnesota Statute,sec. 103G.291 requires public water suppliers to adopt and enforce water-use restrictions when the governor declares a critical water deficiency. The restrictions must limit watering lawns, washing vehicles, irrigating golf courses and parks, and other nonessential uses. This statute also requires public water suppliers serving more than 1,000 people to implement demand reduction measures by January 1, 2015. Demand reduction measures are intended to reduce water use and must include a conservation rate structure or a conservation program. Demand reduction measures established by January 1, 2015 by public water suppliers will be included in the next round of water supply plans. New, 10-year water supply plans will be due beginning in 2016. DNR staff has confirmed conservation rate structures are in place in 21 out of 30 municipalities in the GWMA(Table 4-2). In the Twin Cities Metropolitan Area, all communities with public water supply systems are required to develop water supply plans and must submit a municipal water-use information sheet with the annual water-use report.These data are tied to conservation goals required in the water supply plans. The data required in the reports include the following: • Total water pumped divided into residential, industrial, commercial, agricultural,other and unaccounted use categories • Total per capita demand (annual total pumped for all uses/population served) • Residential per capita demand (annual residential use/population served).The current goal is 75 gallons per day" • Maximum day to average day ratio (maximum use in a 24-hour period divided by total annual volume divided by 365 days). The current goal is less than 2.614. • Unaccounted for water(total volume pumped minus volume sold or used by the utility as a percentage of total pumped).The current goal is less than 10 percent's The 5-year averages of the data reported by water suppliers along with reported apparent trends in these values are summarized in Table 4-3. Municipalities report the apparent trends over five year 13 The 7-County Metropolitan Area average for municipal systems in 2002.This measure was selected by a committee represented by DNR, Metropolitan Council,and the Minnesota Section of the American Water Works Association (AWWA). 14 The 7-County Metropolitan Area average for municipal systems in 2002. 15 AWWA Leak Detection and Water Accountability Committee, 1996.Committee Report—Water Accountability: Journal AWWA,88(7) 108-111. 69