New York
St. Lawrence County drinking water quality
227 active public water systems serve 80,865 people in St. Lawrence County. 98 are compliant, 129 had at least one EPA violation in the past three years, 0 are designated serious violators, and 0 carry a health flag.
Active systems
227
40 community systems
People served
81K
by public water systems
Systems with violations
129
57% of active systems, past 3 years
Serious violators
0
0 systems carry a health flag
Community water systems
40 systems, largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Massena Village Massena (v) |
16,729 | 1 | 1 | |
|
Ogdensburg City Ogdensburg (c) |
10,064 | 0 | 0 | |
|
Potsdam Village Potsdam (v) |
8,312 | 0 | 0 | |
|
Canton Village Canton (v) |
7,055 | 0 | 0 | |
|
Gouverneur Gouverneur (v) |
4,263 | 1 | 0 | |
|
East Louisville Water District Louisville (t) |
3,235 | 0 | 0 | |
|
Norfolk Water District Norfolk (t) |
2,300 | 1 | 0 | |
|
Norwood Norwood (v) |
1,685 | 0 | 0 | |
|
Star Lake Water District Fine (t) |
1,250 | 0 | 0 | |
|
Waddington Village Waddington (v) |
944 | 1 | 0 | |
|
Colton Water District Colton (t) |
850 | 0 | 0 | |
|
Heuvelton Village Heuvelton (v) |
830 | 1 | 1 | |
|
Madrid Water District Madrid (t) |
800 | 0 | 0 | |
|
Lisbon Water District Lisbon (t) |
499 | 1 | 1 | |
|
Dekalb Water District De Kalb (t) |
492 | 0 | 0 | |
|
Hermon Water District Hermon (v) |
492 | 0 | 0 | |
|
Edwards Water District Edwards (v) |
465 | 0 | 0 | |
|
Parishville Water District #1 Parishville (t) |
450 | 0 | 0 | |
|
Morristown Water District Morristown (v) |
395 | 1 | 0 | |
|
Potsdam Water District No. 1 Potsdam (t) |
220 | 0 | 0 | |
|
Wanakena Water Company Fine (t) |
200 | 0 | 0 | |
|
Helena Water District Brasher (t) |
180 | 1 | 0 | |
|
Gouverneur East Side Water District Gouverneur (t) |
165 | 0 | 0 | |
|
Gouverneur West Side Water District Gouverneur (t) |
165 | 0 | 0 | |
|
Piercefield Water District Piercefield (t) |
164 | 2 | 1 | |
|
Church Creek Mobile Home Community Canton (t) |
150 | 2 | 1 | |
|
Morleys Mobile Park Oswegatchie (t) |
150 | 5 | 0 | |
|
L.b.s.h. Housing Brasher (t) |
100 | 1 | 0 | |
|
Champion Mobile Home Park Canton (t) |
82 | 2 | 1 | |
|
Conifer Water District Piercefield (t) |
80 | 2 | 1 | |
|
Crestview Heights Water System Corp. Pierrepont (t) |
70 | 2 | 0 | |
|
Morning Star Village Lisbon (t) |
65 | 2 | 0 | |
|
Bob Scotts Mobile Home Park Pierrepont (t) |
50 | 1 | 0 | |
|
Clarks Trailer Park Canton (t) |
50 | 2 | 1 | |
|
White Birch Mobile Home Pierrepont (t) |
44 | 3 | 0 | |
|
Crescent Meadow Apt Community Potsdam (t) |
30 | 3 | 0 | |
|
Pine Grove Mobile Home Park Norfolk (t) |
30 | 4 | 0 | |
|
Boyden Brook Mobile Home Community Canton (t) |
25 | 0 | 0 | |
|
Garden Place Estates Potsdam (t) |
25 | 1 | 0 | |
|
Snells Complex Potsdam (t) |
25 | 1 | 0 |
Non-community systems (187: schools, campgrounds, workplaces, restaurants)
These systems serve places people visit rather than homes.
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Edwards-Knox Central School Russell (t) |
800 | 0 | 0 | |
|
Madrid-Waddington Central School Madrid (t) |
700 | 2 | 1 | |
|
Massawepie Scout Camps Piercefield (t) |
600 | 1 | 0 | |
|
Jakes on the Water Pierrepont (t) |
517 | 0 | 0 | |
|
Cranberry Lake Campground Clifton (t) |
500 | 0 | 0 | |
|
Hermon-Dekalb Central School Dekalb (t) |
492 | 0 | 0 | |
|
St. Lawrence Central Jr-Sr High Lawrence (t) |
490 | 0 | 0 | |
|
Coles Creek State Campsite Waddington (t) |
470 | 1 | 0 | |
|
St. Lawrence Central Elementary Brasher (t) |
460 | 0 | 0 | |
|
Robert Moses State Park Massena (t) |
407 | 1 | 0 | |
|
Higley Flow State Park Colton (t) |
400 | 1 | 0 | |
|
Town of Lisbon Campground Lisbon (t) |
400 | 2 | 0 | |
|
Hammond Central School Hammond (t) |
380 | 1 | 0 | |
|
Gran View Oswegatchie (t) |
350 | 0 | 0 | |
|
Postwood Park Potsdam (t) |
350 | 2 | 0 | |
|
Wal-Mart Potsdam Potsdam (t) |
350 | 1 | 0 | |
|
Southwest Tech Fowler (t) |
272 | 2 | 0 | |
|
Corning Dekalb (t) |
260 | 0 | 0 | |
|
Nypa Hawkins Point Visitors Center Massena (t) |
260 | 0 | 0 | |
|
Schermerhorn Harbor LLC Hammond (t) |
250 | 0 | 0 | |
|
Schermerhorn Landing-Duck Cove Hammond (t) |
250 | 0 | 0 | |
|
Seaway Area Technology Center Potsdam (t) |
250 | 1 | 0 | |
|
Stables @ Windy Point Potsdam (t) |
250 | 2 | 0 | |
|
Gerald Roy Amvets Post #4 Massena (t) |
200 | 1 | 0 | |
|
McLears Cottage Colony INC Morristown (t) |
200 | 2 | 0 | |
|
New York Power Authority Massena (t) |
200 | 0 | 0 | |
|
Waddington Town Beach Waddington (t) |
200 | 0 | 0 | |
|
Camp Trefoil Pitcairn (t) |
175 | 1 | 0 | |
|
Jacques Cartier State Park Morristown (t) |
150 | 0 | 0 | |
|
Eel Weir State Park Oswegatchie (t) |
140 | 0 | 0 | |
|
Potsdam Town & Country Club Inc. Potsdam (t) |
132 | 2 | 0 | |
|
Massaouapi Cabins Morristown (t) |
130 | 0 | 0 | |
|
Gouverneur Country Club Fowler (t) |
129 | 1 | 0 | |
|
Lake Club, the Morristown (t) |
125 | 2 | 0 | |
|
Cedar View Golf Club Massena (t) |
100 | 2 | 0 | |
|
Dollar General #16847 (winthrop) Stockholm (t) |
100 | 1 | 0 | |
|
Lakehouse, the Morristown (t) |
100 | 1 | 0 | |
|
Lakeside Haven Cottages Oswegatchie (t) |
100 | 0 | 0 | |
|
Pleasant View Camps Morristown (t) |
100 | 2 | 0 | |
|
Riverside Bay LLC Lisbon (t) |
100 | 1 | 0 | |
|
Stone Fence Motel, the Oswegatchie (t) |
100 | 1 | 0 | |
|
Suny Esf Ranger School Fine (t) |
100 | 1 | 0 | |
|
Applewood Orchards Canton (t) |
99 | 2 | 0 | |
|
Birchs Lakeside Gen. Store CG & Marina Clifton (t) |
94 | 1 | 0 | |
|
Blake Recreation Area Parishville (t) |
90 | 0 | 0 | |
|
Cranberry Lake Bio. Station Clifton (t) |
90 | 0 | 0 | |
|
Jelly Beans Riverside Campground LLC Brasher (t) |
90 | 0 | 0 | |
|
Biorigin Gouverneur (t) |
89 | 0 | 0 | |
|
Empire State Mines, LLC Fowler (t) |
85 | 0 | 0 | |
|
1844 House Potsdam (t) |
83 | 1 | 0 | |
|
Cedar Grove Camps Morristown (t) |
80 | 0 | 0 | |
|
Waters Edge Brasher (t) |
80 | 1 | 0 | |
|
Numed Inc. Hopkinton (t) |
78 | 0 | 0 | |
|
JR Watson Community Center Colton (t) |
75 | 0 | 0 | |
|
McGregor Properties, LLC Hammond (t) |
75 | 1 | 0 | |
|
Windjammer Lodge Oswegatchie (t) |
75 | 0 | 0 | |
|
Robideaus Mahogany Ridge Bar/grill LLC Colton (t) |
71 | 0 | 0 | |
|
Seaway Social Waddington (t) |
70 | 0 | 0 | |
|
East Branch Inn Oswegatchie (t) |
65 | 2 | 0 | |
|
St. Lawrence Seaway Maintenance Massena (t) |
65 | 0 | 0 | |
|
North Country Cottages Morristown (t) |
64 | 0 | 0 | |
|
Bella Brooke Vineyard Morristown (t) |
60 | 1 | 0 | |
|
Dollar General Hannawa Falls Pierrepont (t) |
60 | 0 | 0 | |
|
Log Cabins Corporation Morristown (t) |
60 | 0 | 0 | |
|
Stowe Bay Park Colton (t) |
60 | 0 | 0 | |
|
Casella Waste Services Parishville (t) |
57 | 2 | 0 | |
|
Losurdo Foods Inc. Heuvelton (v) |
55 | 0 | 0 | |
|
Scottish Inn Potsdam (t) |
54 | 1 | 0 | |
|
11 West Canton (t) |
50 | 0 | 0 | |
|
Amvets Post 262 Pierrepont (t) |
50 | 2 | 0 | |
|
Meadowbrook Golf, LLC Stockholm (t) |
50 | 1 | 0 | |
|
North Country Dairy LLC Lawrence (t) |
50 | 1 | 0 | |
|
Reynolds Metals Company-Alcoa East Massena (t) |
50 | 0 | 0 | |
|
Riverview of Waddington Motel Waddington (t) |
50 | 1 | 0 | |
|
Seaway Diner & Smokehouse Waddington (t) |
50 | 1 | 0 | |
|
Silver Leaf Diner Dekalb (t) |
50 | 1 | 0 | |
|
St. Lawrence State Park Oswegatchie (t) |
50 | 1 | 0 | |
|
Tri-Town Arena Stockholm (t) |
50 | 1 | 0 | |
|
Wayside Roadhouse Russell (t) |
50 | 0 | 0 | |
|
Yellow Lake Campsite Rossie (t) |
50 | 0 | 0 | |
|
Golden Glow Tavern Edwards (t) |
49 | 1 | 0 | |
|
Langtry Heritage LLC Morristown (t) |
49 | 0 | 0 | |
|
Carry Falls Recreation Area Colton (t) |
48 | 1 | 0 | |
|
Pine Bay Farm Hammond (t) |
48 | 2 | 0 | |
|
Mandaville Camp & Retreat Center Hopkinton (t) |
47 | 1 | 0 | |
|
Riverside Hotel Rossie (t) |
47 | 2 | 0 | |
|
Riverbay Adventure Inn Hammond (t) |
45 | 1 | 0 | |
|
Rogers Camps Morristown (t) |
45 | 0 | 0 | |
|
Stone-Ez Pizza Morristown (t) |
45 | 1 | 0 | |
|
Sunnyside at Watsons Landing LLC Morristown (t) |
45 | 1 | 0 | |
|
Tri-Town Kids Brasher (t) |
45 | 4 | 0 | |
|
Northern Family Motel Potsdam (t) |
44 | 1 | 0 | |
|
Black Lake Marines Cottages Morristown (t) |
40 | 2 | 0 | |
|
Blake Lake Camp Association Parishville (t) |
40 | 2 | 0 | |
|
Misha-Waka Inn Morristown (v) |
37 | 1 | 0 | |
|
Chapmans Sport Shop Morristown (t) |
36 | 1 | 0 | |
|
Parkway Express Morristown Morristown (t) |
36 | 0 | 0 | |
|
Pit Stop Diner Lawrence (t) |
36 | 1 | 0 | |
|
Red Pine Cone Colton (t) |
36 | 1 | 0 | |
|
Turner Inn Morristown (t) |
35 | 0 | 0 |
Inactive systems (198, no longer operating or reporting)
Kept for the record and excluded from the county totals above. Browse inactive systems.
About this data
Totals cover active systems. Systems serving more than one county are counted in each county. EPA counts the rules a system was in violation of, not the individual violations; one rule can carry several.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The New York records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet.