Prosser, WA · Benton County
ROZA HEIGHTS WATER ASSN Water System
Consumer Confidence Report status
ROZA HEIGHTS WATER ASSN 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 ROZA HEIGHTS WATER ASSN.
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)
- WA5374800
- System type
- Community Water System
- Population served
- 110
- Service connections
- 52
- Ownership
- privately owned
- Water source
- groundwater (wells)
ROZA HEIGHTS WATER ASSN is one of 3,227 community water systems in Washington in the 500 or fewer people size category, serving 110 people from groundwater.
As of August 1, 2026, its federal record holds 78 entries between 1979 and 2023, all of which EPA lists as closed. Nothing has been added since 2023.
Of the 78, 75 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, inorganic chemicals, and the Total Coliform Rules.
Violation history
Monitoring and Reporting (DBP)
—TTHM
January 1, 2023 – December 31, 2025
ArchivedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2023 – December 31, 2025
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 2015 – September 30, 2015
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 2013 – October 18, 2016
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Benzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Toluene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Styrene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2008 – December 31, 2010
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
January 1, 2006 – December 31, 2006
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
June 1, 2005 – June 30, 2005
ArchivedMonitoring, Regular
—Nitrate
April 1, 2005 – June 30, 2005
ResolvedMonitoring, Regular
—1,1,1-Trichloroethane
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—1,2,4-Trichlorobenzene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—cis-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—DICHLOROMETHANE
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—o-Dichlorobenzene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—p-Dichlorobenzene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—1,1-Dichloroethylene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—1,2-Dichloroethane
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—1,2-Dichloropropane
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—1,1,2-Trichloroethane
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Benzene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Toluene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Ethylbenzene
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Regular
—Styrene
January 1, 2005 – December 31, 2007
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
August 1, 2003 – August 31, 2003
ArchivedMonitoring, Repeat Major (TCR)
—Coliform (TCR)
August 1, 2003 – August 31, 2003
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 2003 – July 31, 2003
ArchivedMonitoring, Regular
—Cadmium
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Chromium
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—CYANIDE
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Fluoride
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Mercury
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Nickel
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Selenium
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—Thallium, Total
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Regular
—Barium
January 1, 2002 – December 31, 2010
ResolvedMonitoring, Regular
—ETHYLENE DIBROMIDE
January 1, 2002 – December 31, 2004
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
May 1, 2000 – May 31, 2000
ArchivedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
June 1, 1999 – June 30, 1999
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
March 1, 1998 – March 31, 1998
ArchivedMonitoring, Routine Major (TCR)
—Coliform (TCR)
July 1, 1995 – July 31, 1995
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
ArchivedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
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
—Mercury
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Arsenic
October 1, 1979 – October 31, 1979
ArchivedMonitoring, Regular
—Barium
October 1, 1979 – October 31, 1979
Archived
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2023 – December 31, 2025 | Monitoring and Reporting (DBP) | TTHM | — | Archived |
| January 1, 2023 – December 31, 2025 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| September 1, 2015 – September 30, 2015 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 2013 – October 18, 2016 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Styrene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2006 – December 31, 2006 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| June 1, 2005 – June 30, 2005 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| April 1, 2005 – June 30, 2005 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,1,1-Trichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,2,4-Trichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | cis-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | DICHLOROMETHANE | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | o-Dichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | p-Dichlorobenzene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,1-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,2-Dichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,2-Dichloropropane | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | 1,1,2-Trichloroethane | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Benzene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Ethylbenzene | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Styrene | — | Resolved |
| August 1, 2003 – August 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| August 1, 2003 – August 31, 2003 | Monitoring, Repeat Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 2003 – July 31, 2003 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Selenium | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Thallium, Total | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 2002 – December 31, 2010 | Monitoring, Regular | Barium | — | Resolved |
| January 1, 2002 – December 31, 2004 | Monitoring, Regular | ETHYLENE DIBROMIDE | — | Resolved |
| May 1, 2000 – May 31, 2000 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| June 1, 1999 – June 30, 1999 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Archived |
| March 1, 1998 – March 31, 1998 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Archived |
| July 1, 1995 – July 31, 1995 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | 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 |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | 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 | Mercury | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Arsenic | — | Archived |
| October 1, 1979 – October 31, 1979 | Monitoring, Regular | Barium | — | Archived |
Archived closed in EPA's records (typically due to age or a data correction)Resolved addressed and confirmed by the state
Enforcement actions
- May 21, 2018State Compliance achieved1 linked violation
- October 18, 2016State Compliance achieved1 linked violation
- October 31, 2015State Compliance achieved1 linked violation
- October 31, 2012State Compliance achieved1 linked violation
- November 7, 2011State Compliance achieved40 linked violations
- November 7, 2011State Compliance achieved11 linked violations
- November 7, 2011State Compliance achieved2 linked violations
- December 31, 2006State Compliance achieved3 linked violations
- December 15, 2006State Compliance achieved7 linked violations
- July 28, 2005State Compliance achieved5 linked violations
- July 1, 2005State Compliance achieved3 linked violations
- June 14, 2005State Compliance achieved111 linked violations
Common questions
Is ROZA HEIGHTS WATER ASSN required to publish a Consumer Confidence Report?
- Yes. ROZA HEIGHTS WATER ASSN 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 ROZA HEIGHTS WATER ASSN’s next Consumer Confidence Report due?
- ROZA HEIGHTS WATER ASSN’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does ROZA HEIGHTS WATER ASSN have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for ROZA HEIGHTS WATER ASSN.
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
ROZA HEIGHTS WATER ASSN
Phone not on record
Prosser, WA 99350