We found 62 public water systems in Schenectady county (ordered by population size).
| Name | Areas served | Population served | Contaminant count | Violation count |
|---|---|---|---|---|
| Schenectady City Water Works | Schenectady | 61,821 | 11 | 32 |
| Rotterdam Wd #5 | Rotterdam | 28,000 | 11 | 4 |
| Niskayuna Consolidated Wd #11 | Schenectady | 20,295 | 11 | 0 |
| Glenville Wd #11 | Glenville | 15,000 | 13 | 21 |
| Scotia Village Water Works | Scotia | 12,800 | 0 | 5 |
| Rotterdam Wd #3 | Rotterdam | 1,900 | 0 | 4 |
| Princetown Water Supply | Princetown | 600 | 0 | 179 |
| Stewarts Brdnbttr 116-esperance | Duanesburg | 600 | 0 | 1 |
| Duanesburg Elem School | Delanson | 500 | 0 | 17 |
| Scotia-glenville Elks #2759 | Glenville | 500 | 0 | 0 |
| Delanson Village Water Works | Delanson | 428 | 0 | 60 |
| Glendaal Elementary School | Glenville | 350 | 0 | 0 |
| Ridgewood Club Inc | Glenville | 300 | 0 | 0 |
| J & D Pub | Delanson | 300 | 0 | 36 |
| Jonathans Pizza & Ital Cuis | Duanesburg | 250 | 0 | 19 |
| Frosty Acres Campsite | Duanesburg | 230 | 0 | 13 |
| Briar Creek Golf Course | Princetown | 200 | 0 | 0 |
| Hillcrest Club House | Princetown | 200 | 0 | 0 |
| Riverside Maple | Glenville | 200 | 0 | 0 |
| West Hill Water Company Inc. | Rotterdam | 200 | 0 | 6 |
| Gibbys Diner | Duanesburg | 150 | 0 | 4 |
| Hannaford Super Market | Duanesburg | 130 | 0 | 2 |
| Mariaville Elementary School | Duanesburg | 115 | 0 | 0 |
| Countryside Food Mart 1 - Route 7 & 20 | Duanesburg | 100 | 0 | 0 |
| Hillview Tavern | Esperance | 100 | 0 | 0 |
| Americana Antique Center | Duanesburg | 100 | 0 | 0 |
| Andys Catering Services | Scotia | 100 | 0 | 0 |
| Dollar General | Delanson | 100 | 0 | 0 |
| Syron's Market | Duanesburg | 100 | 0 | 0 |
| Duanesburg Diner & Restaurant | Duanesburg | 100 | 0 | 0 |
| Bears Steakhouse | Duanesburg | 100 | 0 | 0 |
| Jus-lin Farms | Duanesburg | 100 | 0 | 0 |
| Big Boys | Glenville | 75 | 0 | 0 |
| Hillcrest Commons- Frt Section | Duanesburg | 64 | 0 | 0 |
| Western Turnpike Deli And Bulk Food | Duanesburg | 50 | 0 | 0 |
| Duanesburg Area Community Daycare | Duanesburg | 50 | 0 | 0 |
| The Summit Room | Delanson | 50 | 0 | 0 |
| Hillcrest Commons-rear Section | Duanesburg | 42 | 0 | 0 |
| Maritime Academy | Glenville | 28 | 0 | 0 |
| Brothers Convenient Mart, Inc | Princetown | 26 | 0 | 0 |
| Frosty Acres Store | Duanesburg | 25 | 0 | 0 |
| Maria Mountain Clubhouse | Delanson | 25 | 0 | 0 |
| Lucias Market | Duanesburg | 25 | 0 | 0 |
| Dunkin Donuts - Rt 7 & I-88 | Duanesburg | 25 | 0 | 0 |
| Wolfes Pizza | Princetown | 25 | 0 | 0 |
| Victory Lap, Inc | Delanson | 25 | 0 | 0 |
| Apple Junction | Rotterdam | 25 | 0 | 0 |
| Cakes By Joan | County of Schenectady | 25 | 0 | 0 |
| Syrons Market | Duanesburg | 25 | 0 | 0 |
| Quaker Inn | Duanesburg | 25 | 0 | 0 |
| Cedars Restaurant | Glenville | 25 | 0 | 0 |
| Buzzards Bay Bbq | Glenville | 25 | 0 | 0 |
| Maple Ski Ridge Inc. | Rotterdam | 25 | 0 | 0 |
| Wolfes Market | Delanson | 25 | 0 | 0 |
| Indian Lookout Country Club | County of Schenectady | 25 | 0 | 0 |
| Stewarts Brdnbttr S 250-duanesburg | County of Schenectady | 25 | 0 | 0 |
| Rosa Villa | Duanesburg | 25 | 0 | 0 |
| Whispering Pines Daycare | Duanesburg | 25 | 0 | 0 |
| Mariaville Lakeside Country Store | County of Schenectady | 25 | 0 | 0 |
| Stewarts Shop 324-glenville | Glenville | 25 | 0 | 0 |
| Mikey Mart Ii - Rt 7 & I-88 | County of Schenectady | 25 | 0 | 0 |
| Adirondack Beverages | Scotia | 0 | 0 | 0 |