Napavine Water Quality
Washington
According to EPA SDWIS, Napavine, Washington is served by 26 community water systems covering about 6,891 people. The same extract lists 54 health-based violation records, most recently coded 8000 in 2024. Counts are historical EPA registry rows, not a current compliance or drinkability score.
Drinking water in Napavine, Washington is delivered through 26 EPA-regulated community water systems serving an estimated 6,891 people. Each system is tracked in the EPA Safe Drinking Water Information System (SDWIS) under the Safe Drinking Water Act, which requires testing for regulated contaminants, consumer notification of violations, and publication of an annual Consumer Confidence Report.
PlainEnviro's health-based SDWIS extract shows 54 violation records across the 26 active community systems shown here. Monitoring and reporting records are not present in the extract. The records carry 3 distinct EPA contaminant codes: Revised Total Coliform Rule, Groundwater Rule, Arsenic.
A past EPA health-based registry row does not describe water delivered today or current compliance status; utilities notify customers and remediate under state primacy oversight when required. For current water-quality status and treatment practices, review your local utility's most recent Consumer Confidence Report or contact the Washington drinking water program. All records above reflect federal EPA SDWIS data and are not independently verified against state databases.
Community Water Systems
| System Name | Pop. Served | Violations | Status |
|---|---|---|---|
| NAPAVINE CITY OF | 3,095 | 0 | Clean |
| LEWIS CO WATER DIST #1 | 1,174 | 0 | Clean |
| CARROLLS WATER ASSN | 449 | 6 | Health |
| PLEASANT FOREST CAMPING CLUB | 327 | 0 | Clean |
| NEWAUKUM VENTURES | 186 | 0 | Clean |
| MALONE | 181 | 0 | Clean |
| FLYING CARPET MOBILE ESTATES | 174 | 0 | Clean |
| WHISPERING WOODS HOME PARK | 125 | 0 | Clean |
| TIMBERLANE MOBILE ESTATES | 120 | 0 | Clean |
| REDMON MOBILE HOME PARK | 105 | 0 | Clean |
| LAKESIDE VILLAGE | 94 | 0 | Clean |
| SKOOKUMCHUCK MOBILE MANOR | 90 | 0 | Clean |
| LAKE MAYFIELD COMMUNITY CLUB | 88 | 0 | Clean |
| MAYFIELD KAMPER KLUB | 87 | 2 | Health |
| PATTERSON LAKE WATER | 79 | 0 | Clean |
| TIMBERLANE MOBILE HOME PARK | 63 | 2 | Health |
| TOWNSHIP PLACE | 56 | 0 | Clean |
| PRAIRIE VILLAGE LLC | 55 | 0 | Clean |
| GUNDERSON WATER WORKS | 53 | 0 | Clean |
| RIVER OAKS RV PARK & CAMPGROUND | 50 | 0 | Clean |
| WINSTON CREEK RV PARK | 50 | 0 | Clean |
| COLUMBIA CREST ESTATES | 48 | 44 | Health |
| SILVERBROOK MH & RV | 42 | 0 | Clean |
| SKATE CREEK TERRACE ASSOCIATION | 39 | 0 | Clean |
| GRAND MOUND MOTEL | 36 | 0 | Clean |
| WINLOCK WATERS 2 | 25 | 0 | Clean |
Does this city have health-based water violations?
These health-based records can represent Maximum Contaminant Level (MCL), Treatment Technique (TT), or Maximum Residual Disinfectant Level (MRDL) categories. A historical record does not establish that water is currently unsafe.
| Water system | Contaminant | Begin Date |
|---|---|---|
| TIMBERLANE MOBILE HOME PARK | Revised Total Coliform Rule | 2024-05-01 |
| TIMBERLANE MOBILE HOME PARK | Revised Total Coliform Rule | 2024-05-01 |
| MAYFIELD KAMPER KLUB | Revised Total Coliform Rule | 2022-12-01 |
| MAYFIELD KAMPER KLUB | Revised Total Coliform Rule | 2022-12-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2019-09-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2019-09-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2019-02-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2019-02-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2018-07-01 |
| CARROLLS WATER ASSN | Groundwater Rule | 2018-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2015-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2014-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2013-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2012-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-04-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2011-01-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2010-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2010-10-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2010-07-01 |
| COLUMBIA CREST ESTATES | Arsenic | 2010-07-01 |
What are Napavine's health-based records for?
Napavine's health-based violation records carry 3 distinct EPA codes: some name a substance, others the drinking-water rule that was breached. Counts are records on file in the EPA SDWIS extract, not current test results.
| Contaminant | Records | Systems |
|---|---|---|
| Arsenic | 44 | 1 |
| Groundwater Rule | 6 | 1 |
| Revised Total Coliform Rule | 4 | 2 |
Frequently Asked Questions
What does EPA SDWIS list for drinking water in Napavine, Washington? ▼
How many water violations does Napavine have in this EPA extract? ▼
What contaminants were found in Napavine water? ▼
How many water systems serve Napavine? ▼
Where does Napavine get its drinking water? ▼
How does Napavine compare in Washington?
Of the 365 Washington places with at least one community water system on file, Napavine ranks #19 by number of systems (26).
Either side of it: Cle Elum (28), Union (27), Oak Harbor (26), Olympia (25)
About This Data
Figures here are the current EPA SDWIS extract joined to the 26 community water systems whose service area lists Napavine, ranked against the 365 Washington places with at least one system on file. Data current as of 2026-08-25.
Water system data comes from the EPA's Safe Drinking Water Information System (SDWIS). PlainEnviro's violation fetch is restricted upstream to records EPA flags as health-based and then joined to active community water systems. Monitoring and reporting violations are not included.
A health-based violation row in this extract is a historical EPA registry entry. It does not describe water delivered today or current compliance status. Many records are later resolved, and public water systems notify customers when required. For current conditions, contact your local water utility or the state drinking water program.
TRI facility data comes from the EPA Toxic Release Inventory. Facilities shown are those that self-report to the TRI program. PlainEnviro presents this data without advocacy framing.
Read our methodology - how this data is sourced, computed, and verified.