HILLSBORO, OR · Washington County
SOUTH HILLS WATER SYSTEM Water System
Consumer Confidence Report status
SOUTH HILLS WATER SYSTEM 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 SOUTH HILLS WATER SYSTEM.
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 Oregon’s official records. Always confirm current status with Oregon before making decisions based on this information.
System facts
- System ID (PWSID)
- OR4100306
- System type
- Community Water System
- Population served
- 250
- Service connections
- 105
- Ownership
- privately owned
- Water source
- groundwater (wells)
SOUTH HILLS WATER SYSTEM is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, serving 250 people from groundwater.
As of August 1, 2026, its federal record holds 12 entries between 1976 and 2016, all of which EPA lists as closed. Nothing has been added since 2016.
Of the 12, 11 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 the Stage 2 Disinfectants and Disinfection Byproducts Rule, the Total Coliform Rules, and the Stage 1 Disinfectants and Disinfection Byproducts Rule.
Violation history
Monitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
October 1, 2016 – September 30, 2019
ResolvedMonitoring and Reporting (DBP)
—TTHM
October 1, 2016 – September 30, 2019
ResolvedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2014 – September 30, 2016
ArchivedMonitoring and Reporting (DBP)
—TTHM
January 1, 2014 – September 30, 2016
ArchivedMonitoring and Reporting (DBP)
—Total Haloacetic Acids (HAA5)
January 1, 2008 – December 31, 2010
ResolvedMonitoring and Reporting (DBP)
—TTHM
January 1, 2008 – December 31, 2010
ResolvedMonitoring, Regular
—Arsenic
January 1, 2005 – December 31, 2007
ResolvedMonitoring, Routine Minor (TCR)
—Coliform (TCR)
August 1, 1992 – August 31, 1992
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
July 1, 1991 – July 31, 1991
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1991 – April 30, 1991
ResolvedMonitoring, Regular
—Gross Alpha, Excl. Radon and U
June 1, 1976 – May 31, 1980
ArchivedMonitoring, Regular
—Combined Radium (-226 and -228)
June 1, 1976 – May 31, 1980
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 1, 2016 – September 30, 2019 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| October 1, 2016 – September 30, 2019 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2014 – September 30, 2016 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Archived |
| January 1, 2014 – September 30, 2016 | Monitoring and Reporting (DBP) | TTHM | — | Archived |
| January 1, 2008 – December 31, 2010 | Monitoring and Reporting (DBP) | Total Haloacetic Acids (HAA5) | — | Resolved |
| January 1, 2008 – December 31, 2010 | Monitoring and Reporting (DBP) | TTHM | — | Resolved |
| January 1, 2005 – December 31, 2007 | Monitoring, Regular | Arsenic | — | Resolved |
| August 1, 1992 – August 31, 1992 | Monitoring, Routine Minor (TCR) | Coliform (TCR) | — | Resolved |
| July 1, 1991 – July 31, 1991 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
| April 1, 1991 – April 30, 1991 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Gross Alpha, Excl. Radon and U | — | Archived |
| June 1, 1976 – May 31, 1980 | Monitoring, Regular | Combined Radium (-226 and -228) | — | Archived |
Resolved addressed and confirmed by the stateArchived closed in EPA's records (typically due to age or a data correction)
Enforcement actions
No enforcement actions on record for this system.
Common questions
Is SOUTH HILLS WATER SYSTEM required to publish a Consumer Confidence Report?
- Yes. SOUTH HILLS WATER SYSTEM 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 SOUTH HILLS WATER SYSTEM’s next Consumer Confidence Report due?
- SOUTH HILLS WATER SYSTEM’s next Consumer Confidence Report is due by July 1, 2027. The report covers calendar year 2026.
Does SOUTH HILLS WATER SYSTEM have any open drinking water violations on record?
- As of August 1, 2026, EPA's federal records show no open violations for SOUTH HILLS WATER SYSTEM.
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
SOUTH HILLS WATER SYSTEM
503-318-4587
HILLSBORO, OR 97123