Joint Grass Brook MA81-21_2006, Nissitissit River Nashua Basin Cause Unknown Pork Barrel! Pond lissittissit River n^nk Brook MA81-07_2006, Nashua River Nashua Basin Cause Unknown Nutrients Pathogens Turbidity Dunstable Lower Massapoag Pond Pegperell Townsend MA81167_2006, Pepperell Pond Nashua Basin Metals Nutrients Noxious aquatic plants Turbidity Vifattb Pond MA84087_2006, Massapoag Pond Merrimack Basin Metals Organic enrichment/Low DO Noxious aquatic plants lashua River River Flat Pond Cow Pond Brook IMA81-06_2006, Nashua River Nashua Basin Cause Unknown Metals Nutrients Organic enrichment/Low DO Noxious aquatic plants Turbidity Martins Pond Groton Baddacook Brook MA84A-19_2006, Martins Pond Brook Merrimack Basin Siltation Organic enrichmentA.ow DO Turbidity Whitney Pond MA81-06_2006, Nashua River Nashua Basin Cause Unknown Metals Nutrients Organic enrichmenM-ow DO Noxious aquatic plants [Turbidity MA84084_2006, Knops Pond/Lost Lake Merrimack Basin Metals Westford Lunenburg MA81-19_2006,Squannacook River Nashua Basin | Cause Unknown Duck Pond Groton School Pot\ Knops Pond Squannacook Pont MA84015_2006, Forge Pond Merrimack Basin Metals hver Pond Shirley MA81-05_2006, Nashua River Nashua Basin Cause Unknown Unknown toxicity Metals Nutrients Pathogens Taste, odor and color [Turbidity MA84089_2006, Spectacle Pond Merrimack Basin Organic enrichment/Low DO Noxious aquatic plants Spectacle Pond \ MA81103_2006, Plow Shop Pond Nashua Basin Metals Noxious aquatic plants Littleton MA84B-01_2006, Unnamed Tributary Merrimack Basin Nutrients MA81-05_2006, Nashua River Nashua Basin Cause Unknown Unknown toxicity Metals Nutrients Pathogens Taste, odor and color Turbidity I Moose Organic enrichment/Low DO Pathogens Suspended solids Pbw Shop Pondt MA81053_2006, Grove Pond i Nashua Basin Metals Noxious aquatic plants Shaker Mill Pond Harvard Impaired Waters and TMDL Status Groton, MA Map produced by EPA Region IGIS Center Map Tracker ID 3244, May 30, 2008 Data Sources: TeleAtlas, Census Bureau, USGS, MADEP N A vyEPA I Miles United States Environmental Protection Agency New England Impaired. Water body Label State ID. Waterbody Name Basin Name Category 4a POC (Pollutants of Concern) Category 5 POC (Pollutants of Concern) Impaired Water Segment cza Category Z Category 4a T7Z\ Category 3 Waterbodies VTA Category 4c tzzi Category 5 I I MS4 Urbanized Areas (2000 Census) Municipal Boundaries ------- |