Management of Stream-Aquifer Systems in the 21st Centuryby Babs Makinde-Odusola,
Abstract: Many water agencies, especially those in the arid and semi-arid southwest of United States rely on stream-aquifer systems for a significant proportion of their water supplies. Wastewater discharges contribute significantly to recharge of those stream-aquifers, especially during summer months and dry years. Wastewater, agricultural drainage and urban runoff contain dissolved salts, metals, and chlorinated organic compounds which may contaminate the stream-aquifers to levels exceeding the water quality objectives. Regulatory agencies, concerned about salts, and nitrates in effluent dominated streams and groundwater, may mandate more stringent discharge limits. Management of effluent dominated stream-aquifer systems in the 21st century will be more challenging because the quantities of wastewater discharged are increasing.
Subject Headings: Systems management | Aquifers | Water pollution | Wastewater management | Water discharge | Water supply systems | Aging (material) | Arid lands | North America | United States
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