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Porosity Volume of open pore space between particles of clay, silt, sand, gravel, <br />cobble or within rock in a geologic formation. <br />Prediction Prediction quantifies the response of a system to future events. <br />Pressure Head Height of the water column due to aquifer pressurization. <br />Projection <br />A projection indicates what future values for the unknown would be if the <br />assumed patterns of change were to occur. They are not a prediction that <br />the unknown will change in this manner. A projection simply indicates a <br />future value for the unknown if the set of underlying assumptions occur. <br />Public Water Community public water supply systems serve at least 25 persons or 15 <br />System services connections year-round, which includes municipalities, <br />manufactured mobile home parks, etc. These systems are required to <br />provide a safe and adequate supply of water under the federal Safe <br />Drinking Water Act. Also known as a community public water supply <br />system. <br />Recharge <br />The natural or manmade infiltration of surface water into the zone of <br />saturation. For the purposes of regional recharge modeling using the SWB <br />model, recharge is the portion of infiltration that moves from the <br />unsaturated sediment below the root zone into the underlying aquifers <br />(saturated zone). <br />Recharge Area An area where surface water from rainfall, snowmelt or other sources <br />seeps through the soil into the saturated zone. <br />Redevelopment Any proposed expansion, addition, or major facade change of an existing <br />building, structure, or parking facility. <br />Regional <br />Infrastructure <br />Infrastructure pertaining to any of the Council's systems: wastewater, <br />transportation, and parks and open space (See also regional systems.) <br />Regional Systems <br />Systems for which the Metropolitan Council is the responsible planning <br />and operating authority. They include wastewater services, transportation, <br />parks and open space, and airports. (See also regional infrastructure.) <br />Reuse <br />1.GET DNR definition. Reuse of water already authorized by a permit is <br />exempt to water appropriation permit requirements. <br />Runoff The rainfall, snowmelt, or irrigation water flowing that has not evaporated <br />or infiltrated into the soil, but flows over the ground surface. <br />Rural Centers <br />Local commercial, employment, and residential activity centers serving <br />rural areas in the region. These small towns are surrounded by agricultural <br />lands and serve as centers of commerce to those surrounding farm lands. <br />The density is 3-5 units/acre. <br />Rural Residential <br />Area <br />Communities that have residential patterns characterized by large lots and <br />do not have plans to provide urban infrastructure. Maximum allowable <br />density is 4 units/40 acres. <br />COMMUNITY HIGHLIGHTS WATER SUPPLY MASTER <br />PLAN- Draft June 2015 <br />