Yakima, WA · Yakima County
YAK CO - TERRACE HEIGHTS Water System
Consumer Confidence Report status
YAK CO - TERRACE HEIGHTS 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 YAK CO - TERRACE HEIGHTS.
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)
- WA5306029
- System type
- Community Water System
- Population served
- 8,410
- Service connections
- 2,725
- Ownership
- local government
- Water source
- groundwater (wells)
YAK CO - TERRACE HEIGHTS is one of 112 community water systems in Washington in the 3,301 to 10,000 people size category, serving 8,410 people from groundwater.
As of August 1, 2026, its federal record holds 53 entries between 1997 and 2025, all of which EPA lists as closed.
Of the 53, 51 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, synthetic organic chemicals, and inorganic chemicals.
Violation history
Monitoring, Regular
—Nitrate
January 1, 2025 – December 31, 2025
ResolvedMonitoring, Regular
—Nitrate
January 1, 2025 – December 31, 2025
ResolvedMonitoring, Regular
—Nitrate
January 1, 2025 – December 31, 2025
ResolvedMaximum Contaminant Level Violation, E. coli (RTCR)
Health-basedRevised Total Coliform Rule
August 1, 2023 – August 31, 2023
ResolvedMonitoring, Routine (RTCR)
—Revised Total Coliform Rule
October 1, 2022 – October 31, 2022
ResolvedMonitoring, Regular
—Toluene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Benzene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Styrene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2020 – December 31, 2025
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2020 – December 31, 2025
ResolvedConsumer Confidence Report Complete Failure to Report
—Consumer Confidence Rule
July 1, 2014 – September 1, 2014
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
April 1, 2008 – June 30, 2008
ArchivedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
April 1, 2008 – June 30, 2008
ArchivedMonitoring, Regular
—Diquat
April 1, 2008 – June 30, 2008
ArchivedMonitoring, Regular
—Diquat
October 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Diquat
July 1, 2007 – September 30, 2007
ResolvedMonitoring, Regular
—Benzene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Nitrate
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Styrene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Regular
—Toluene
January 1, 2007 – December 31, 2007
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
August 1, 1997 – August 31, 1997
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 |
|---|---|---|---|---|
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2025 – December 31, 2025 | Monitoring, Regular | Nitrate | — | Resolved |
| August 1, 2023 – August 31, 2023 | Maximum Contaminant Level Violation, E. coli (RTCR) | Revised Total Coliform Rule | Health-based | Resolved |
| October 1, 2022 – October 31, 2022 | Monitoring, Routine (RTCR) | Revised Total Coliform Rule | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2020 – December 31, 2025 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| July 1, 2014 – September 1, 2014 | Consumer Confidence Report Complete Failure to Report | Consumer Confidence Rule | — | Resolved |
| April 1, 2008 – June 30, 2008 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Archived |
| April 1, 2008 – June 30, 2008 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Archived |
| April 1, 2008 – June 30, 2008 | Monitoring, Regular | Diquat | — | Archived |
| October 1, 2007 – December 31, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| July 1, 2007 – September 30, 2007 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2007 – December 31, 2007 | Monitoring, Regular | Toluene | — | Resolved |
| August 1, 1997 – August 31, 1997 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
- April 30, 2026State Compliance achieved1 linked violation
- April 30, 2026State Compliance achieved20 linked violations
- March 27, 2026State Compliance achieved1 linked violation
- March 27, 2026State Compliance achieved1 linked violation
- September 18, 2023State Compliance achieved1 linked violation
- November 8, 2022State Compliance achieved1 linked violation
- September 1, 2014State Compliance achieved1 linked violation
- June 11, 2008State Compliance achieved25 linked violations
- June 11, 2008State Compliance achieved69 linked violations
- June 11, 2008State Compliance achieved42 linked violations
- June 11, 2008State Compliance achieved42 linked violations
- June 11, 2008State Compliance achieved21 linked violations
- June 11, 2008State Compliance achieved23 linked violations
- January 1, 2008State Compliance achieved224 linked violations
- January 1, 2008State Compliance achieved7 linked violations
- January 1, 2008State Compliance achieved4 linked violations
Common questions
Is YAK CO - TERRACE HEIGHTS required to publish a Consumer Confidence Report?
- Yes. YAK CO - TERRACE HEIGHTS 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 YAK CO - TERRACE HEIGHTS’s next Consumer Confidence Report due?
- YAK CO - TERRACE HEIGHTS’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does YAK CO - TERRACE HEIGHTS have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for YAK CO - TERRACE HEIGHTS.
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
YAK CO - TERRACE HEIGHTS
Phone not on record
Yakima, WA 98901