SEQUIM, WA · Clallam County
MAPLE GROVE Water System
Consumer Confidence Report status
MAPLE GROVE must publish a Consumer Confidence Report — the annual drinking water quality report covering calendar year 2026 — by July 1, 2027.
As of August 1, 2026, EPA's federal records show no open violations for MAPLE GROVE.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 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)
- WA5363277
- System type
- Community Water System
- Population served
- 132
- Service connections
- 57
- Ownership
- privately owned
- Water source
- groundwater (wells)
MAPLE GROVE is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 132 people from groundwater.
As of August 1, 2026, its federal record holds 44 entries between 2003 and 2025, all of which EPA lists as closed.
Of the 44, 40 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves volatile organic chemicals, the Consumer Confidence Rule, and the Total Coliform Rules.
Violation history
Consumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2025 – September 28, 2025
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2018 – September 22, 2018
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—DICHLOROMETHANE
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—o-Dichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Vinyl chloride
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloropropane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Trichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Benzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Toluene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Styrene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—DICHLOROMETHANE
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—o-Dichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—p-Dichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Vinyl chloride
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Carbon tetrachloride
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2-Dichloropropane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Trichloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Tetrachloroethylene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—CHLOROBENZENE
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Toluene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Ethylbenzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Styrene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—Benzene
October 1, 2004 – December 31, 2004
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
October 1, 2004 – December 31, 2004
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
September 1, 2003 – September 30, 2003
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2003 – July 31, 2003
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 |
|---|---|---|---|---|
| July 1, 2025 – September 28, 2025 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| July 1, 2018 – September 22, 2018 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Benzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Toluene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Styrene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Toluene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Styrene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | Benzene | — | Resolved |
| October 1, 2004 – December 31, 2004 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| September 1, 2003 – September 30, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| July 1, 2003 – July 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- September 28, 2025State Compliance achieved1 linked violation
- September 22, 2018State Compliance achieved1 linked violation
- July 7, 2006State Compliance achieved40 linked violations
Common questions
Is MAPLE GROVE required to publish a Consumer Confidence Report?
- Yes. MAPLE GROVE is a community water system, and federal rules (40 CFR 141 Subpart O) require every community water system to publish a Consumer Confidence Report each year.
When is MAPLE GROVE’s next Consumer Confidence Report due?
- MAPLE GROVE’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does MAPLE GROVE have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for MAPLE GROVE.
What is a Consumer Confidence Report?
- A Consumer Confidence Report (CCR) is the annual drinking water quality report that community water systems must provide to the people they serve. It lists the contaminants detected in the system’s water during the year, where the water comes from, and how the results compare with federal limits. EPA’s revised CCR rule takes effect January 1, 2027, and the first reports in the new format are due July 1, 2027.
Contact
MAPLE GROVE
Phone not on record
SEQUIM, WA 98382