Jefferson County, New York
148 active water systems in this county.
| Water System | Population Served | Source | Violations | Health-Based |
|---|---|---|---|---|
| West Carthage Village | 1,734 | Surface Water Purchased | 39 | 39 |
| Wilna T Wd 1 | 240 | Surface Water Purchased | 38 | 37 |
| Carthage Village | 3,600 | Surface Water | 37 | 37 |
| Hounsfield Wd 2 | 725 | Surface Water Purchased | 32 | 29 |
| Pamelia Town Wd 4 & 5 | 1,000 | Surface Water Purchased | 46 | 25 |
| Watertown City | 27,861 | Surface Water | 21 | 21 |
| Hounsfield Wd 1, 5 | 480 | Surface Water Purchased | 24 | 20 |
| Brownville (t) Wd #1 | 600 | Surface Water Purchased | 18 | 15 |
| Pamelia Town Wd #2 | 150 | Surface Water Purchased | 15 | 15 |
| Watertown Town Wd 3 & 4 & 5 | 750 | Surface Water Purchased | 12 | 12 |
| Henderson Town Wd 1,2 | 700 | Surface Water | 20 | 8 |
| Southside Water Inc. | 195 | Surface Water Purchased | 8 | 8 |
| Credo Community Center | 45 | Groundwater | 17 | 7 |
| Dexter Village | 1,100 | Groundwater | 8 | 7 |
| Danc Western Regional | 0 | Surface Water Purchased | 7 | 7 |
| Watertown Town Wd 1 & 2 | 600 | Surface Water Purchased | 5 | 5 |
| Wellesley Island Water Corp. | 548 | Surface Water | 6 | 3 |
| Champion Wd 2, 4 & 5 | 650 | Groundwater | 3 | 3 |
| Brownville (t) Wd #2 | 140 | Groundwater Purchased | 3 | 3 |
| Danc (watertown / Ft. Drum) | 0 | Surface Water Purchased | 3 | 3 |
| Antwerp Village | 900 | Groundwater | 8 | 2 |
| Evans Mills Village | 644 | Groundwater | 5 | 2 |
| Fort Drum | 34,000 | Surface Water Purchased | 3 | 2 |
| Whistle Stop Tavern | 200 | Groundwater Under Influence | 55 | 1 |
| Cold Springs Golf Course | 195 | Groundwater | 23 | 1 |
| Wayside Inn - Jefferson Cty | 90 | Groundwater Under Influence | 23 | 1 |
| Genes Fishing Camp | 40 | Groundwater | 21 | 1 |
| Pinehurst on the St. Lawrence | 200 | Groundwater Under Influence | 6 | 1 |
| Hidden Harbor | 50 | Groundwater Under Influence | 6 | 1 |
| Tiba -u.s. Customs | 25 | Surface Water | 2 | 1 |
| Philadelphia Village | 1,800 | Groundwater Under Influence | 1 | 1 |
| Hi-da-way Cottages | 30 | Surface Water | 1 | 1 |
| Riverwood Estates | 30 | Groundwater | 1 | 1 |
| Can-am Speedway | 2,000 | Groundwater | 60 | 0 |
| North Country Store | 25 | Groundwater | 45 | 0 |
| Chaumont River Rv Park | 25 | Groundwater | 36 | 0 |
| Steiners General Store | 60 | Groundwater | 34 | 0 |
| Shady Pines | 50 | Groundwater | 30 | 0 |
| Willows on the Lake | 90 | Surface Water | 29 | 0 |
| Dry Hill Ski Area | 50 | Groundwater | 29 | 0 |
| Sls on the River Llc Dba Chateau | 25 | Groundwater | 24 | 0 |
| Theresa Bowling Center | 100 | Groundwater | 23 | 0 |
| Depauville Hotel | 30 | Groundwater | 23 | 0 |
| Whitecaps Market | 25 | Groundwater | 23 | 0 |
| Nut N Fanci | 25 | Groundwater | 21 | 0 |
| Guffin Bay Resort & Marina | 60 | Surface Water | 18 | 0 |
| Association Island R.v. Resort &marina | 307 | Surface Water | 17 | 0 |
| Stewarts Shop 441 | 25 | Groundwater | 16 | 0 |
| Dollar General (theresa) | 25 | Groundwater | 14 | 0 |
| Merry Knoll Travel Trailer Pk. | 85 | Groundwater | 13 | 0 |
| 4-h Camp Wabasso | 175 | Groundwater | 12 | 0 |
| Thousand Island Trailer Park | 70 | Groundwater | 12 | 0 |
| Boathouse Marine | 34 | Groundwater | 12 | 0 |
| Southwicks General Store | 25 | Groundwater | 12 | 0 |
| C-way Motel & Resort | 160 | Groundwater | 11 | 0 |
| Sportsmans Hideaway | 80 | Groundwater | 11 | 0 |
| Flying Spatula 1 | 50 | Groundwater | 11 | 0 |
| Clayton Distillery | 25 | Groundwater | 10 | 0 |
| Fair Wind Lodge | 60 | Surface Water | 8 | 0 |
| Harbors End, Inc. | 25 | Groundwater | 8 | 0 |
| Deferiet Village | 420 | Groundwater | 7 | 0 |
| Natalis Restaurant | 200 | Groundwater | 7 | 0 |
| Pines Trailer Park | 136 | Groundwater | 7 | 0 |
| Tricias Rondette Restaurant | 70 | Groundwater | 7 | 0 |
| Wellesley Island Market | 25 | Groundwater | 7 | 0 |
| Meadowlane Park | 160 | Groundwater | 6 | 0 |
| Shangri-la Campground | 150 | Surface Water | 6 | 0 |
| Up the Creek Campground | 80 | Groundwater | 6 | 0 |
| Bay Vue Park | 48 | Groundwater | 6 | 0 |
| Hoopers Harbor, Llc | 40 | Groundwater Under Influence | 6 | 0 |
| Adams Village | 2,000 | Groundwater | 5 | 0 |
| Lanzs Motel Inc. | 148 | Surface Water | 5 | 0 |
| Ponds Marina & Trailer Park | 60 | Groundwater | 5 | 0 |
| Lawrence View Park | 50 | Groundwater | 5 | 0 |
| Land of Lakes Shoppette & Gas | 26 | Groundwater | 5 | 0 |
| Hillbilly Inn | 25 | Groundwater | 5 | 0 |
| River Golf Adventures | 25 | Groundwater | 5 | 0 |
| Northland Estates | 540 | Groundwater | 4 | 0 |
| Krings Trailer Park | 300 | Surface Water | 4 | 0 |
| Cals Cottages | 130 | Groundwater | 4 | 0 |
| Lyellton Drive | 45 | Groundwater | 4 | 0 |
| Rainbow Shore Trailer Park | 44 | Groundwater | 4 | 0 |
| Wright Diner (the) | 25 | Groundwater | 4 | 0 |
| Rock Island Lighthouse State Park | 25 | Surface Water | 4 | 0 |
| Orleans Town Wd 1 (lafargeville) | 750 | Groundwater | 3 | 0 |
| Kring Point State Park | 600 | Surface Water | 3 | 0 |
| Riverside Acres | 300 | Groundwater | 3 | 0 |
| Hounsfield Wd 3 (wescott Beach) | 270 | Surface Water Purchased | 3 | 0 |
| Brennans Bay Campground and Marina | 164 | Groundwater | 3 | 0 |
| Ontario Shores T/p & Marina | 39 | Surface Water | 3 | 0 |
| Twisted | 30 | Groundwater | 3 | 0 |
| Stone Mills Museum | 1,500 | Groundwater | 2 | 0 |
| Adams T Wd 1,2,3 (adams Center) | 1,000 | Groundwater Purchased | 2 | 0 |
| Wellesley Island State Park | 1,000 | Groundwater | 2 | 0 |
| Birch Haven Campground | 200 | Surface Water | 2 | 0 |
| Sargents on Swan Bay/kountry Kottage | 150 | Groundwater | 2 | 0 |
| Crystal Lake Campground | 150 | Groundwater | 2 | 0 |
| Roosevelt Trailer Park/cot. | 132 | Surface Water | 2 | 0 |
| Mils Rivershore Cottgs/motel | 75 | Groundwater | 2 | 0 |
| Two Sisters Diner | 50 | Groundwater | 2 | 0 |
| Dewolf Point State Park | 30 | Surface Water | 2 | 0 |
| Burrville Cider Mill | 25 | Groundwater Under Influence | 2 | 0 |
| Clayton Village | 2,100 | Surface Water | 1 | 0 |
| Glen Park Village | 500 | Groundwater Purchased | 1 | 0 |
| Mannsville Village | 450 | Groundwater Under Influence | 1 | 0 |
| Lyme Town Wd 2 | 400 | Surface Water Purchased | 1 | 0 |
| Wilsons Hyde Lake Campsites | 375 | Groundwater | 1 | 0 |
| Tiba - Yacht House | 211 | Groundwater | 1 | 0 |
| Wagoners Marina & Trailer Prk | 125 | Groundwater | 1 | 0 |
| Lyme Town Wd 1 & 4 | 70 | Surface Water Purchased | 1 | 0 |
| Alexandria Town Wd #1 - Otter Street | 60 | Surface Water Purchased | 1 | 0 |
| La Golf Club, Inc | 50 | Groundwater | 1 | 0 |
| Arrowhead Trailer Park | 42 | Groundwater | 1 | 0 |
| Southbound Comfort Station | 26 | Groundwater | 1 | 0 |
| Northbound Comfort Station | 26 | Groundwater | 1 | 0 |
| Leray Town Wd 1, 2, 4 | 7,140 | Groundwater | 0 | 0 |
| Cape Vincent Town Wd 1 & 5 | 2,600 | Surface Water Purchased | 0 | 0 |
| Sackets Harbor Village | 2,200 | Surface Water | 0 | 0 |
| Alexandria Bay Village | 1,900 | Surface Water | 0 | 0 |
| Black River Village | 1,600 | Groundwater | 0 | 0 |
| Cape Vincent Village | 1,500 | Surface Water | 0 | 0 |
| Ellisburg Wd 1, 2 & 3 | 1,500 | Groundwater | 0 | 0 |
| Brownville Village | 1,200 | Groundwater | 0 | 0 |
| Tiba - Boldt Castle | 1,000 | Surface Water | 0 | 0 |
| Theresa Village | 950 | Groundwater Purchased | 0 | 0 |
| Thousand Island Park Corp. | 900 | Surface Water | 0 | 0 |
| Orleans Town Wd 2 (rt 12) | 690 | Surface Water Purchased | 0 | 0 |
| Chaumont Village | 625 | Surface Water Purchased | 0 | 0 |
| Southwick Beach State Park | 520 | Surface Water | 0 | 0 |
| Champion Wd 1 (great Bend) | 400 | Groundwater Purchased | 0 | 0 |
| Creekstone Farms | 400 | Groundwater | 0 | 0 |
| Long Point State Park - Jefferson Cty | 360 | Surface Water | 0 | 0 |
| Northwoods Estates | 315 | Groundwater | 0 | 0 |
| Indian River Estates, Ltd. | 303 | Groundwater | 0 | 0 |
| Black River Bay Campground | 300 | Groundwater | 0 | 0 |
| Wilna T Wd 2 | 200 | Groundwater | 0 | 0 |
| Rodman Town Wd 1 | 180 | Groundwater | 0 | 0 |
| Canoe-picnic Point State Park | 175 | Surface Water | 0 | 0 |
| Northernaire Park | 160 | Groundwater | 0 | 0 |
| Barton & Healys Cottgs/trlprk | 120 | Groundwater | 0 | 0 |
| Cold Creek Studios | 90 | Groundwater | 0 | 0 |
| Swan Bay Estates & Marina Ltd. | 54 | Groundwater | 0 | 0 |
| 7 Acres Trailer Park | 50 | Groundwater | 0 | 0 |
| Mary Island State Park | 50 | Surface Water | 0 | 0 |
| Wehle State Park | 26 | Groundwater | 0 | 0 |
| Bassetts Captain Clayton | 25 | Groundwater | 0 | 0 |
| Keithas Kafe | 25 | Groundwater | 0 | 0 |
| Aujla Corner | 25 | Groundwater | 0 | 0 |