{"data":{"id":"us-va/9vac25-260-187","jurisdiction":"us-va","citation":"9VAC25-260-187","heading":"Criteria for man-made lakes and reservoirs to protect aquatic life and recreational designated uses from the impacts of nutrients","body":"A. The criteria in subsection B of this section apply to the man-made lakes and reservoirs listed in this section. Additional man-made lakes and reservoirs may be added as new reservoirs are constructed or monitoring data become available from outside groups or future agency monitoring.\n\nB. Whether or not algicide treatments are used, the chlorophyll a criteria apply to all waters on the list. The total phosphorus criteria apply only if a specific man-made lake or reservoir received algicide treatment during the monitoring and assessment period of April 1 through October 31.\n\nThe 90th percentile of the chlorophyll a data collected at one meter or less within the lacustrine portion of the man-made lake or reservoir between April 1 and October 31 shall not exceed the chlorophyll a criterion for that waterbody in each of the two most recent monitoring years that chlorophyll a data are available. For a waterbody that received algicide treatment, the median of the total phosphorus data collected at one meter or less within the lacustrine portion of the man-made lake or reservoir between April 1 and October 31 shall not exceed the total phosphorus criterion in each of the two most recent monitoring years that total phosphorus data are available.\n\nMonitoring data used for assessment shall be from sampling locations within the lacustrine portion where observations are evenly distributed over the seven months from April 1 through October 31 and are in locations that are representative, either individually or collectively, of the condition of the man-made lake or reservoir.\n\nMan-made Lake or Reservoir Name\n\nLocation\n\nChlorophyll a (μg/L)\n\nTotal Phosphorus (μg/L)\n\nAbel Lake\n\nStafford County\n\n35\n\n40\n\nAirfield Pond\n\nSussex County\n\n35\n\n40\n\nAmelia Lake\n\nAmelia County\n\n35\n\n40\n\nAquia Reservoir (Smith Lake)\n\nStafford County\n\n35\n\n40\n\nBark Camp Lake (Corder Bottom Lake, Lee/Scott/Wise Lake)\n\nScott County\n\n35\n\n40\n\nBeaver Creek Reservoir\n\nAlbemarle County\n\n35\n\n40\n\nBeaverdam Creek Reservoir (Beaverdam Reservoir)\n\nBedford County\n\n35\n\n40\n\nBeaverdam Reservoir\n\nLoudoun County\n\n35\n\n40\n\nBedford Reservoir (Stony Creek Reservoir)\n\nBedford County\n\n35\n\n40\n\nBig Cherry Lake\n\nWise County\n\n35\n\n40\n\nBreckenridge Reservoir\n\nPrince William County\n\n35\n\n40\n\nBriery Creek Lake\n\nPrince Edward County\n\n35\n\n40\n\nBrunswick Lake (County Pond)\n\nBrunswick County\n\n35\n\n40\n\nBurke Lake\n\nFairfax County\n\n60\n\n40\n\nCarvin Cove Reservoir\n\nBotetourt County\n\n35\n\n40\n\nCherrystone Reservoir\n\nPittsylvania County\n\n35\n\n40\n\nChickahominy Lake\n\nCharles City County\n\n35\n\n40\n\nChris Green Lake\n\nAlbemarle County\n\n35\n\n40\n\nClaytor Lake\n\nPulaski County\n\n25\n\n20\n\nClifton Forge Reservoir (Smith Creek Reservoir)\n\nAlleghany County\n\n35\n\n20\n\nColes Run Reservoir\n\nAugusta County\n\n10\n\n10\n\nCurtis Lake\n\nStafford County\n\n60\n\n40\n\nDiascund Creek Reservoir\n\nNew Kent County\n\n35\n\n40\n\nDouthat Lake\n\nBath County\n\n25\n\n20\n\nElkhorn Lake\n\nAugusta County\n\n10\n\n10\n\nEmporia Lake (Meherrin Reservoir)\n\nGreensville County\n\n35\n\n40\n\nFairystone Lake\n\nHenry County\n\n35\n\n40\n\nFalling Creek Reservoir\n\nChesterfield County\n\n35\n\n40\n\nFluvanna Ruritan Lake\n\nFluvanna County\n\n60\n\n40\n\nFort Pickett Reservoir\n\nNottoway/Brunswick County\n\n35\n\n40\n\nGatewood Reservoir\n\nPulaski County\n\n35\n\n40\n\nGeorges Creek Reservoir\n\nPittsylvania County\n\n35\n\n40\n\nGoose Creek Reservoir\n\nLoudoun County\n\n35\n\n40\n\nGraham Creek Reservoir\n\nAmherst County\n\n35\n\n40\n\nGreat Creek Reservoir\n\nLawrenceville\n\n35\n\n40\n\nHarrison Lake\n\nCharles City County\n\n35\n\n40\n\nHarwood Mills Reservoir\n\nYork County\n\n60\n\n40\n\nHidden Valley Lake\n\nWashington County\n\n35\n\n40\n\nHogan Lake\n\nPulaski County\n\n35\n\n40\n\nHoliday Lake\n\nAppomattox County\n\n35\n\n40\n\nHungry Mother Lake\n\nSmyth County\n\n35\n\n40\n\nHunting Run Reservoir\n\nSpotsylvania County\n\n35\n\n40\n\nJ. W. Flannagan Reservoir\n\nDickenson County\n\n25\n\n20\n\nKerr Reservoir, Virginia portion (Buggs Island Lake)\n\nHalifax County\n\n25\n\n30\n\nKeysville Reservoir\n\nCharlotte County\n\n35\n\n40\n\nLake Albemarle\n\nAlbemarle County\n\n35\n\n40\n\nLake Anna\n\nLouisa , Spotsylvania, Orange Counties\n\n25\n\n30\n\nLake Arrowhead\n\nPage County\n\n35\n\n40\n\nLake Burnt Mills\n\nIsle of Wight County\n\n60\n\n40\n\nLake Chesdin\n\nChesterfield County\n\n35\n\n40\n\nLake Cohoon\n\nSuffolk City\n\n60\n\n40\n\nLake Conner\n\nHalifax County\n\n35\n\n40\n\nLake Frederick\n\nFrederick County\n\n35\n\n40\n\nLake Gaston, (Virginia portion)\n\nBrunswick County\n\n25\n\n30\n\nLake Gordon\n\nMecklenburg County\n\n35\n\n40\n\nLake Keokee\n\nLee County\n\n35\n\n40\n\nLake Kilby\n\nSuffolk City\n\n60\n\n40\n\nLake Lawson\n\nVirginia Beach City\n\n60\n\n40\n\nLake Manassas\n\nPrince William County\n\n35\n\n40\n\nLake Meade\n\nSuffolk City\n\n60\n\n40\n\nLake Moomaw\n\nBath County\n\n10\n\n10\n\nLake Mooney\n\nStafford County\n\n25\n\n40\n\nLake Nelson\n\nNelson County\n\n60\n\n40\n\nLake Nottoway (Lee Lake, Nottoway Lake)\n\nNottoway County\n\n35\n\n40\n\nLake Orange\n\nOrange County\n\n60\n\n40\n\nLake Pelham\n\nCulpeper County\n\n35\n\n40\n\nLake Prince\n\nSuffolk City\n\n60\n\n40\n\nLake Robertson\n\nRockbridge County\n\n35\n\n40\n\nLake Smith\n\nVirginia Beach City\n\n60\n\n40\n\nLake Whitehurst\n\nNorfolk City\n\n60\n\n40\n\nLake Wright\n\nNorfolk City\n\n60\n\n40\n\nLakeview Reservoir\n\nChesterfield County\n\n35\n\n40\n\nLaurel Bed Lake\n\nRussell County\n\n35\n\n40\n\nLee Hall Reservoir (Newport News Reservoir)\n\nNewport News City\n\n60\n\n40\n\nLeesville Reservoir\n\nBedford County\n\n25\n\n30\n\nLittle Creek Reservoir\n\nVirginia Beach City\n\n60\n\n40\n\nLittle Creek Reservoir\n\nJames City County\n\n25\n\n30\n\nLittle River Reservoir\n\nMontgomery County\n\n35\n\n40\n\nLone Star Lake F (Crystal Lake)\n\nSuffolk City\n\n60\n\n40\n\nLone Star Lake G (Crane Lake)\n\nSuffolk City\n\n60\n\n40\n\nLone Star Lake I (Butler Lake)\n\nSuffolk City\n\n60\n\n40\n\nLunga Reservoir\n\nPrince William County\n\n35\n\n40\n\nLunenburg Beach Lake (Victoria Lake)\n\nTown of Victoria\n\n35\n\n40\n\nMartinsville Reservoir (Beaver Creek Reservoir)\n\nHenry County\n\n35\n\n40\n\nMill Creek Reservoir\n\nAmherst County\n\n35\n\n40\n\nModest Creek Reservoir\n\nTown of Victoria\n\n35\n\n40\n\nMotts Run Reservoir\n\nSpotsylvania County\n\n25\n\n30\n\nMount Jackson Reservoir\n\nShenandoah County\n\n35\n\n40\n\nMountain Run Lake\n\nCulpeper County\n\n35\n\n40\n\nNi Reservoir\n\nSpotsylvania County\n\n35\n\n40\n\nNorth Fork Pound Reservoir\n\nWise County\n\n35\n\n40\n\nNortheast Creek Reservoir\n\nLouisa County\n\n35\n\n40\n\nOccoquan Reservoir\n\nFairfax County\n\n35\n\n40\n\nPedlar Lake\n\nAmherst County\n\n25\n\n20\n\nPhilpott Reservoir\n\nHenry County\n\n25\n\n30\n\nPhelps Creek Reservoir (Brookneal Reservoir)\n\nCampbell County\n\n35\n\n40\n\nPowhatan Lakes (Upper and Lower)\n\nPowhatan County\n\n35\n\n40\n\nRagged Mountain Reservoir\n\nAlbemarle County\n\n35\n\n40\n\nRivanna Reservoir (South Fork Rivanna Reservoir)\n\nAlbemarle County\n\n35\n\n40\n\nRoaring Fork\n\nPittsylvania County\n\n35\n\n40\n\nRural Retreat Lake\n\nWythe County\n\n35\n\n40\n\nSandy River Reservoir\n\nPrince Edward County\n\n35\n\n40\n\nShenandoah Lake\n\nRockingham County\n\n35\n\n40\n\nSilver Lake\n\nRockingham County\n\n35\n\n40\n\nSmith Mountain Lake\n\nBedford County\n\n25\n\n30\n\nSouth Holston Reservoir\n\nWashington County\n\n25\n\n20\n\nSpeights Run Lake\n\nSuffolk City\n\n60\n\n40\n\nSpring Hollow Reservoir\n\nRoanoke County\n\n25\n\n20\n\nStaunton Dam Lake\n\nAugusta County\n\n35\n\n40\n\nStonehouse Creek Reservoir\n\nAmherst County\n\n60\n\n40\n\nStrasburg Reservoir\n\nShenandoah County\n\n35\n\n40\n\nStumpy Lake\n\nVirginia Beach\n\n60\n\n40\n\nSugar Hollow Reservoir\n\nAlbemarle County\n\n25\n\n20\n\nSwift Creek Lake\n\nChesterfield County\n\n35\n\n40\n\nSwift Creek Reservoir\n\nChesterfield County\n\n35\n\n40\n\nSwitzer Lake\n\nRockingham County\n\n10\n\n10\n\nTalbott Reservoir\n\nPatrick County\n\n35\n\n40\n\nThrashers Creek Reservoir\n\nAmherst County\n\n35\n\n40\n\nTotier Creek Reservoir\n\nAlbemarle County\n\n35\n\n40\n\nTownes Reservoir\n\nPatrick County\n\n25\n\n20\n\nTroublesome Creek Reservoir\n\nBuckingham County\n\n35\n\n40\n\nWaller Mill Reservoir\n\nYork County\n\n25\n\n30\n\nWestern Branch Reservoir\n\nSuffolk City\n\n25\n\n20\n\nWise Reservoir\n\nWise County\n\n25\n\n20\n\nC. When the board determines that the applicable criteria in subsection B of this section for a specific man-made lake or reservoir are exceeded, the board shall consult with the Department of Wildlife Resources regarding the status of the fishery in determining whether or not the designated use for that waterbody is being attained. If the designated use of the subject waterbody is not being attained, the board shall assess the waterbody as impaired in accordance with § 62.1-44.19:5 of the Code of Virginia. If the designated use is being attained, the board shall assess the waterbody as impaired in accordance with § 62.1-44.19:5 of the Code of Virginia until site-specific criteria are adopted and become effective for that waterbody.\n\nD. If the nutrient criteria specified for a man-made lake or reservoir in subsection B of this section do not provide for the attainment and maintenance of the water quality standards of downstream waters as required in 9VAC25-260-10 C, the nutrient criteria herein may be modified on a site-specific basis to protect the water quality standards of downstream waters.","path":["Title 9. Environment","Agency 25. State Water Control Board","Chapter 260. Water Quality Standards","Part II. Standards with More Specific Application"],"source_url":"https://law.lis.virginia.gov/admincode/title9/agency25/chapter260/section187/","current_through":"2026 Regular Session (effective July 1, 2026)","vintage":"","retrieved_at":"2026-09-14T04:49:14Z","sha256":"fd26a71387986594d28e99a4f3bb58799969ea64e9dad7d5a544cd4b4de48596","source_id":"us-va-vac","stale":false,"prev":"us-va/9vac25-260-186","next":"us-va/9vac25-260-250"},"notice":"GroundRules: Original legal text. Not legal advice."}