p-Dichlorobenzene violations in Washington
102 active public water systems in Washington had a p-Dichlorobenzene violation in the past three years, 10 of them still unresolved. What p-Dichlorobenzene is and why it matters.
Systems with a p-Dichlorobenzene violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Monse-Riggan Camp Okanogan County |
1,165 | 4 | 1 | |
|
Dugualla Community INC Island County |
459 | 4 | 0 | |
|
Project Cougar Whitman County |
283 | 3 | 1 | |
|
Rainier Pure Beef CO Cowlitz County |
251 | 2 | 0 | |
|
Trails End Water District Mason County |
211 | 6 | 0 | |
|
Trophy Lake Golf Course Kitsap County |
163 | 6 | 1 | |
|
Treveri Yakima County |
141 | 2 | 0 | |
|
National Food NW Lind Adams County |
61 | 3 | 0 | |
|
Trails West Subdivision Stevens County |
27 | 7 | 1 | |
|
Skyline Ridge Kittitas County |
20 | 2 | 0 | |
|
Quincy Water Department City of Grant County |
8,415 | 1 | 0 | |
|
Yak CO Terrace Heights Yakima County |
8,410 | 3 | 0 | |
|
Deer Park City of Spokane County |
5,435 | 3 | 0 | |
|
Water District 19 King County |
5,335 | 2 | 0 | |
|
Newport City of Pend Oreille County |
3,331 | 4 | 0 | |
|
Fall City Water Dist. #127 King County |
2,987 | 1 | 0 | |
|
Pacific Beach/moclips Grays Harbor County |
2,372 | 2 | 0 | |
|
Angel of the Winds Arlington · County |
2,303 | 5 | 0 | |
|
White Pass Company INC Lewis County |
2,094 | 4 | 0 | |
|
Suquamish Regional Public Water System Poulsbo · County |
1,874 | 5 | 0 | |
|
Ritzville Water Department Adams County |
1,725 | 2 | 0 | |
|
Makah Neah Bay Neah Bay · County |
1,300 | 11 | 0 | |
|
Carlyon Beach Homeowners Thurston County |
1,273 | 2 | 0 | |
|
Fawn Lake Maintenance Comm Mason County |
1,044 | 1 | 0 | |
|
Wilbur Town of Lincoln County |
1,040 | 4 | 0 | |
|
Odessa Lincoln County |
986 | 5 | 0 | |
|
Sprague City of Lincoln County |
570 | 5 | 1 | |
|
Two Rivers Resort Wellpinit · County |
480 | 6 | 2 | |
|
Wellpinit School County |
473 | 5 | 0 | |
|
Dungeness Bay Plat Clallam County |
461 | 1 | 0 | |
|
Pioneer Water Company Spokane County |
443 | 4 | 0 | |
|
Lake Margaret Water System King County |
406 | 2 | 0 | |
|
Sierra Water System Pierce County |
355 | 2 | 0 | |
|
McCoy Lake Wellpinit · County |
325 | 6 | 2 | |
|
Clear Lake Water District Pierce County |
317 | 2 | 0 | |
|
Sunwood Graham Pierce County |
315 | 2 | 0 | |
|
Beachcomber H2o CO Island County |
310 | 1 | 0 | |
|
Cedar Springs Camp Snohomish County |
308 | 3 | 0 | |
|
Artesian Water District 8 Walla Walla County |
302 | 4 | 0 | |
|
Colony Surf Water Supply Mason County |
297 | 1 | 0 | |
|
Martha Boardman Wellpinit · County |
295 | 6 | 0 | |
|
Perry Lewis County |
277 | 4 | 1 | |
|
Dixie Water Association Walla Walla County |
240 | 2 | 0 | |
|
Summerset West Water Association Adams County |
240 | 4 | 0 | |
|
Mountainview Elementary School Yakima County |
220 | 2 | 0 | |
|
Bruce Water System Adams County |
210 | 2 | 0 | |
|
Mullen Hill Terrace MHP Spokane County |
207 | 5 | 0 | |
|
Red Mountain Water Association Benton County |
200 | 5 | 0 | |
|
Wallula Water District Walla Walla County |
200 | 3 | 0 | |
|
Latah Town of Spokane County |
194 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved p-Dichlorobenzene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not p-Dichlorobenzene alone.
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 Washington 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. Retrieved from ECHO on Oct 11, 2026.