Public Water Systems
4,557 active water systems in WA.
| System Name | Location | Population | Violations | PFAS |
|---|---|---|---|---|
| MOSES LAKE CITY OF | Moses Lake, WA | 32,428 | 626 | Detected |
| FIFE DEPT OF PUBLIC WORKS | FIFE, WA | 32,380 | 27 | Clean |
| SPANAWAY WATER COMPANY | Spanaway, WA | 31,908 | 15 | Detected |
| CAMAS MUNICIPAL WATER SEWER SYSTEM | Camas, WA | 31,794 | 714 | Detected |
| North City Water District | Shoreline, WA | 31,744 | 4 | Clean |
| MERCER ISLAND CITY OF | Mercer Island, WA | 30,689 | 8 | Clean |
| BATTLE GROUND WATER DEPT CITY OF | Battle Ground, WA | 29,974 | 911 | — |
| PULLMAN WATER DEPARTMENT CITY OF | Pullman, WA | 29,690 | 15 | Detected |
| PARKLAND LIGHT & WATER COMPANY | Tacoma, WA | 29,595 | 76 | Detected |
| PORT ANGELES CITY OF | Port Angeles, WA | 28,946 | 18 | Clean |
| West Sound Utility District #1 | Port Orchard, WA | 28,928 | 148 | Detected |
| CEDAR RIVER WATER & SEWER DISTRICT | Maple Valley, WA | 28,671 | 0 | Detected |
| CENTRALIA PUBLIC WORKS - WATER | Centralia, WA | 28,164 | 10 | Detected |
| WHITWORTH WATER DISTRICT 2 | Mead, WA | 26,883 | 434 | Detected |
| SILVERDALE WATER DIST 16 | Silverdale, WA | 26,634 | 99 | Clean |
| EAST WENATCHEE WATER DISTRICT | East Wenatchee, WA | 26,519 | 46 | Clean |
| MOUNTLAKE TERRACE CITY OF | Mountlake Terrace, WA | 26,402 | 12 | Clean |
| Mukilteo Water & Wastewater Distr | Mukilteo, WA | 25,182 | 4 | Clean |
| GORGE AMPHITHEATRE | Cle Elum, WA | 25,015 | 29 | — |
| VERA WATER & POWER | Spokane Valley, WA | 24,692 | 66 | Clean |
| NORTH PERRY AVE WATER DISTRICT | Bremerton, WA | 24,402 | 47 | Clean |
| Lake Meridian Water District | Kent, WA | 24,231 | 9 | Detected |
| OAK HARBOR CITY OF | Oak Harbor, WA | 23,767 | 13 | Clean |
| MONROE WATER SYSTEM | Monroe, WA | 23,467 | 27 | Clean |
| ENUMCLAW WATER DEPARTMENT | Enumclaw, WA | 23,276 | 39 | Clean |
| CROSS VALLEY WATER DISTRICT | Snohomish, WA | 23,054 | 33 | Detected |
| PUD #1 OF ASOTIN COUNTY | Clarkston, WA | 21,930 | 133 | Detected |
| WASHINGTON STATE UNIVERSITY | Pullman, WA | 21,506 | 27 | Detected |
| WASHOUGAL CITY OF | Washougal, WA | 21,441 | 335 | Detected |
| CONSOLIDATED IRRIG DIST 19 SYSTEM 2 | Greenacres, WA | 21,220 | 44 | Clean |
| ANACORTES CITY OF | Mount Vernon, WA | 21,105 | 134 | Clean |
| RIDGEFIELD PUBLIC WORKS | Ridgefield, WA | 20,967 | 1,376 | Clean |
| ELLENSBURG WATER DEPT | Ellensburg, WA | 20,900 | 13 | Clean |
| ARLINGTON CITY OF | Arlington, WA | 20,418 | 1 | Detected |
| KING COUNTY WATER DISTRICT NO 90 | Renton, WA | 20,100 | 262 | Clean |
| FERNDALE | Ferndale, WA | 19,305 | 20 | Clean |
| SPO CO WATER DIST 3 SYS 1 | Spokane, WA | 18,983 | 124 | Detected |
| MODERN ELECTRIC WATER CO | Spokane, WA | 18,487 | 262 | Clean |
| WEST RICHLAND CITY OF | West Richland, WA | 18,280 | 63 | Detected |
| LYNDEN WATER DEPARTMENT | Lynden, WA | 17,969 | 33 | Clean |
| ABERDEEN CITY OF | Aberdeen, WA | 17,958 | 14 | Clean |
| SHELTON CITY OF | SHELTON, WA | 17,575 | 108 | Clean |
| KING COUNTY WATER DISTRICT #125 | SEATTLE, WA | 17,546 | 7 | Clean |
| POULSBO CITY OF | Poulsbo, WA | 17,180 | 418 | Clean |
| EASTERN WASHINGTON UNIVERSITY | Cheney, WA | 17,108 | 39 | Detected |
| SUNNYSIDE CITY OF | Sunnyside, WA | 17,037 | 45 | Detected |
| PORT TOWNSEND CITY OF | Port Townsend, WA | 16,977 | 18 | Clean |
| NAVAL BASE KITSAP AT BANGOR | Silverdale, WA | 16,828 | 21 | Clean |
| YELM CITY OF | Yelm, WA | 16,633 | 9 | Clean |
| NAVAL AIR STATION/WHIDBEY ISLAND | NAS Whidbey Island, WA | 16,595 | 10 | Clean |