Public Water Systems
143,076 active public water systems, tracked from EPA's Safe Drinking Water Information System (SDWIS) across all 50 states. See our methodology.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| Hopewell Cons WD 1 | Canandaigua, NY | 3,781 | 7 | Clean |
| Decker Hills | Austin, TX | 3,780 | 44 | Clean |
| Mulberry, City Of | Mulberry, FL | 3,780 | 48 | Clean |
| Sisters, City Of | Sisters, OR | 3,778 | 124 | - |
| Lincoln Rural W/a-Heucks Ret | Brookhaven, MS | 3,778 | 334 | Clean |
| American Valley Csd | Quincy, CA | 3,778 | 15 | Detected |
| Buena Vista Town Of | Buena Vista, CO | 3,776 | 118 | Clean |
| Roamingwood Sewer and Water | Lake Ariel, PA | 3,775 | 1,601 | Clean |
| Kaufman County MUD 11 | Dallas, TX | 3,774 | 21 | Detected |
| City of Houston | Houston, MS | 3,772 | 727 | Clean |
| City of Montgomery | Montgomery, TX | 3,771 | 36 | - |
| City of Bunker Hill Village | Houston, TX | 3,771 | 19 | Clean |
| Plata I Y II | Moca, PR | 3,770 | 80 | Clean |
| Eveleth | Eveleth, MN | 3,770 | 45 | Detected |
| Lee County Water Association | Marianna, AR | 3,770 | 292 | Clean |
| Mason Co Psd - Ashton | Point Pleasant, WV | 3,768 | 53 | - |
| Spo Co Water Dist 3 Sys 3 | Spokane, WA | 3,765 | 271 | Clean |
| Grand Mound | Olympia, WA | 3,764 | 4 | - |
| Hugoton, City Of | Hugoton, KS | 3,764 | 35 | Detected |
| Osage Co RWD 5 | Overbrook, KS | 3,763 | 68 | - |
| City of Emory | Emory, TX | 3,762 | 153 | Detected |
| Idyllwild Water District | Idyllwild, CA | 3,762 | 12 | - |
| Yellow Springs Village PWS | Yellow Springs, OH | 3,761 | 9 | Detected |
| Blanding City | Blanding, UT | 3,760 | 281 | Clean |
| Keatchie Water System | Keatchie, LA | 3,759 | 235 | Clean |
| Mountain Springs WSC | Valley View, TX | 3,756 | 67 | - |
| Northgate Crossing MUD 2 | Houston, TX | 3,753 | 189 | Clean |
| South Freestone County WSC | Teague, TX | 3,753 | 2 | Clean |
| Jackson County U.d. #3 | Gainesboro, TN | 3,751 | 155 | - |
| Mayes Co RWD # 6 | Big Cabin, OK | 3,750 | 66 | Clean |
| Meredith Water Dept | Meredith, NH | 3,750 | 250 | - |
| Romeo, Village Of | Armada, MI | 3,750 | 18 | Clean |
| Embarras Area Water District | Charleston, IL | 3,750 | 32 | Clean |
| Fern Crest Utilities, Inc. | Davie, FL | 3,750 | 138 | - |
| Central City City Of | Central City, CO | 3,750 | 59 | Clean |
| Hiwannee Water Association #1 | Waynesboro, MS | 3,749 | 948 | Clean |
| Old Union Water System | Shannon, MS | 3,749 | 787 | Clean |
| Eudora Utilities Association | Hernando, MS | 3,749 | 356 | Clean |
| Wrightsville | Wrightsville, GA | 3,749 | 43 | Clean |
| Scott City, City Of | Scott City, KS | 3,748 | 171 | Clean |
| Fruitvale WSC | Fruitvale, TX | 3,747 | 17 | Clean |
| Postwood MUD | Houston, TX | 3,747 | 4 | Clean |
| Callahan County WSC | Clyde, TX | 3,747 | 379 | - |
| Coaling Water Authority | Coaling, AL | 3,747 | 13 | Clean |
| West Dallas Water Authority | Sardis, AL | 3,747 | 5 | Clean |
| Spencer | Spencer, OK | 3,746 | 563 | Clean |
| Hobart | Hobart, OK | 3,746 | 43 | Detected |
| Chisago City | Chisago City, MN | 3,745 | 32 | Detected |
| Long Prairie | Long Prairie, MN | 3,744 | 22 | Clean |
| Englewood Water Dept | Englewood, TN | 3,742 | 67 | Clean |