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  2. Occoquan Reservoir - Wikipedia

    en.wikipedia.org/wiki/Occoquan_Reservoir

    Despite being a major fresh water source, Occoquan Reservoir is listed on Virginia's Dirty Water List, with recorded high levels of phosphorus, turbidity, low dissolved oxygen, the presence of copper sulfate and the growing presence of pharmaceuticals, largely due to human land uses, population pressure and poor management. [1]

  3. Category:Water supply infrastructure in Virginia - Wikipedia

    en.wikipedia.org/wiki/Category:Water_supply...

    Main page; Contents; Current events; Random article; About Wikipedia; Contact us

  4. Category:Water in Virginia - Wikipedia

    en.wikipedia.org/wiki/Category:Water_in_Virginia

    Water supply infrastructure in Virginia (3 C) S. Swimming in Virginia (2 C) W. Water parks in Virginia (9 P) Water transportation in Virginia (9 C, 1 P) Waterfalls of ...

  5. Water resource region - Wikipedia

    en.wikipedia.org/wiki/Water_Resource_Region

    A water resource region is the first level of classification used by the United States Geological Survey to divide and sub-divide the United States into successively smaller hydrologic units as part of the U.S. hydrologic unit system. This first level of classification divides the United States into 21 major geographic areas, or regions.

  6. Swift Creek Reservoir - Wikipedia

    en.wikipedia.org/wiki/Swift_Creek_Reservoir

    The Swift Creek Reservoir was built in 1965 to be a public water supply for surrounding communities. [3] In 1992, the Watershed Management Committee was established by the Board of Supervisors to protect and preserve the reservoir. They established limits on construction and oversaw development and maintenance of nearby communities.

  7. CNN — Precautionary boil water advisories for Washington, DC, and Arlington County were lifted Thursday morning, after local authorities announced water quality never deviated from safety standards.

  8. Water balance - Wikipedia

    en.wikipedia.org/wiki/Water_balance

    The water balance is also referred to as a water budget. Developing water budgets is a fundamental activity in the science of hydrology. According to the US Geological Survey: [4] An understanding of water budgets and underlying hydrologic processes provides a foundation for effective water-resource and environmental planning and management.

  9. Dragon Run watershed - Wikipedia

    en.wikipedia.org/wiki/Dragon_run_watershed

    The Dragon Run watershed in the U.S. state of Virginia encompasses 140 square miles (360 km 2) and is home to many flora and fauna species.The brackish water stream, labeled on topographic maps as Dragon Swamp, [1] is fed by underground springs, surface runoff, and numerous feeding swamps. [2]