Vancouver, WA · Clark County
YACOLT Water System
Current status
No open violations on record as of July 4, 2026.
This system's next federally required Consumer Confidence Report is due July 1, 2027, under the EPA's revised reporting rule.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed July 4, 2026. This is a record-keeping and public-information tool — it does not replace Washington’s official records. Always confirm current status with Washington before making decisions based on this information.
System facts
- System ID (PWSID)
- WA5399000
- System type
- Community Water System
- Population served
- 3,034
- Service connections
- 700
- Ownership
- local government
- Water source
- groundwater (wells)
Violation history
OCCT/SOWT Treatment Installation/Demonstration
Health-basedLead and Copper Rule
October 2, 2022 – March 22, 2023
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2010 – October 14, 2010
ResolvedMonitoring, Regular
—Dinoseb
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—OXAMYL
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb sulfone
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Carbofuran
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Endrin
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—BHC-GAMMA
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Methoxychlor
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Toxaphene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Simazine
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Atrazine
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—LASSO
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Heptachlor
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Heptachlor epoxide
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Chlordane
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Dalapon
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Picloram
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Dinoseb
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—2,4,5-TP
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—OXAMYL
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb sulfoxide
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb sulfone
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Carbofuran
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Endrin
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—BHC-GAMMA
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Methoxychlor
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Toxaphene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Simazine
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Di(2-ethylhexyl) phthalate
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Hexachlorocyclopentadiene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Atrazine
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—LASSO
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Heptachlor
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Heptachlor epoxide
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Benzo(a)pyrene
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Pentachlorophenol
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Chlordane
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Aldicarb sulfoxide
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Picloram
January 1, 2002 – December 31, 2004
ArchivedMonitoring, Regular
—Dalapon
January 1, 2002 – December 31, 2004
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
January 1, 1997 – January 31, 1997
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 1996 – June 30, 1996
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
December 1, 1995 – December 31, 1995
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 1995 – August 31, 1995
ArchivedMaximum Contaminant Level Violation, Acute (TCR)
Health-basedColiform (TCR)
December 1, 1992 – December 31, 1992
ArchivedMonitoring, Regular
—Mercury
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Nitrate
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Selenium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Arsenic
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Barium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Cadmium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Chromium
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Fluoride
October 1, 1979 – October 31, 1979
Archived
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| October 2, 2022 – March 22, 2023 | OCCT/SOWT Treatment Installation/Demonstration | Lead and Copper Rule | Health-based | Resolved |
| July 1, 2010 – October 14, 2010 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dinoseb | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | OXAMYL | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb sulfone | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Carbofuran | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Endrin | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Methoxychlor | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Toxaphene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Simazine | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Atrazine | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | LASSO | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Heptachlor | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Heptachlor epoxide | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | HEXACHLOROBENZENE | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Chlordane | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dalapon | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Picloram | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dinoseb | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 2,4,5-TP | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | OXAMYL | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb sulfoxide | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb sulfone | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Carbofuran | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Endrin | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | BHC-GAMMA | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Methoxychlor | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Toxaphene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Simazine | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Di(2-ethylhexyl) phthalate | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Hexachlorocyclopentadiene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Atrazine | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | LASSO | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Heptachlor | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Heptachlor epoxide | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | HEXACHLOROBENZENE | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Benzo(a)pyrene | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Pentachlorophenol | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Chlordane | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Aldicarb sulfoxide | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Picloram | — | Archived |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | Dalapon | — | Archived |
| January 1, 1997 – January 31, 1997 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| June 1, 1996 – June 30, 1996 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| December 1, 1995 – December 31, 1995 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| August 1, 1995 – August 31, 1995 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| December 1, 1992 – December 31, 1992 | Maximum Contaminant Level Violation, Acute (TCR) | Coliform (TCR) | Health-based | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Mercury | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Nitrate | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Selenium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Arsenic | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Barium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Cadmium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Chromium | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Fluoride | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- March 22, 2023State Compliance achieved1 linked violation
- October 14, 2010State Compliance achieved1 linked violation
- December 31, 1995State Violation/Reminder Notice4 linked violations
- December 31, 1992State Violation/Reminder Notice1 linked violation
- June 30, 1992State Violation/Reminder Notice1 linked violation
- May 31, 1992State Violation/Reminder Notice1 linked violation
Contact
YACOLT
Phone not on record
Vancouver, WA 98668