County · Washington
Clark County, Washington: drinking water records
This overview covers 19 ZIP codes and 25 community water systems in Clark County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Vancouver City of WA5391200 | 373,047 | 600 | 7 | 0 | 2.2 ppb |
| Clark Public Utilities WA5313333 | 153,526 | 600 | 5 | 0 | 1.8 ppb |
| Camas Municipal Water Sewer System WA5310800 | 31,794 | 270 | 3 | 0 | 1.5 ppb |
| Battle Ground Water Dept City of WA5304700 | 30,237 | 150 | 0 | 0 | 1.5 ppb |
| Washougal City of WA5393400 | 21,441 | 180 | 3 | 0 | 2.7 ppb |
| Ridgefield Public Works WA5372400 | 21,225 | 360 | 0 | 0 | 2.1 ppb |
| Yacolt WA5399000 | 3,034 | 0 | 0 | 1 | 1.9 ppb |
| Brookside WA5346002 | 100 | 0 | 0 | 3 | 6.5 ppb |
| Amboy Clark Public Utilities WA5304625 | 991 | 0 | 0 | 0 | 1.2 ppb |
| Larch Corrections Center WA5306461 | 705 | 0 | 0 | 0 | 1 ppb |
| Country Manor Mobile Home Park WA5315521 | 450 | 0 | 0 | 0 | 0 ppb |
| Vista del Rio Mobile Home Park WA5306044 | 352 | 0 | 0 | 0 | 0 ppb |
| Great Western Mobile Home Park WA5306772 | 250 | 0 | 0 | 0 | 0 ppb |
| Oak Meadows Mobile Home Park WA5325101 | 216 | 0 | 0 | 0 | 2.9 ppb |
| Woodland MHC LLC WA5320469 | 209 | 0 | 0 | 0 | 15.4 ppb |
| Hillcrest Manor WA5317267 | 100 | 0 | 0 | 0 | 1.1 ppb |
| Single Tree Acres WA5312366 | 90 | 0 | 0 | 0 | 0.5 ppb |
| Green Mountain Mobile Ranch WA5353991 | 80 | 0 | 0 | 0 | 0 ppb |
| Morning Meadows WA5300950 | 75 | 0 | 0 | 0 | 0 ppb |
| Vanridge Mobile Home Park WA5315637 | 71 | 0 | 0 | 0 | 0 ppb |
| Parkside Airpark Owners WA5326879 | 66 | 0 | 0 | 0 | 15 ppb |
| Tukes Mountain Homeowners WA5328340 | 60 | 0 | 0 | 0 | 0 ppb |
| Magna Vista Water Corp WA5350240 | 56 | 0 | 0 | 0 | 0.6 ppb |
| Estates at Livingston Mtn WA5300794 | 33 | 0 | 0 | 0 | 2.7 ppb |
| Bridge Road WA53AB775 | 25 | 0 | 0 | 0 | 2.2 ppb |
ZIP reports in Clark County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.