Drinking Water Compliance OS

HILLSBORO, OR · Washington County

SOUTH HILLS WATER SYSTEM 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 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)

Violation history

  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    October 1, 2016 – September 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    October 1, 2016 – September 30, 2019

    Resolved
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2014 – September 30, 2016

    Archived
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2014 – September 30, 2016

    Archived
  • Monitoring and Reporting (DBP)

    Total Haloacetic Acids (HAA5)

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring and Reporting (DBP)

    TTHM

    January 1, 2008 – December 31, 2010

    Resolved
  • Monitoring, Regular

    Arsenic

    January 1, 2005 – December 31, 2007

    Resolved
  • Monitoring, Routine Minor (TCR)

    Coliform (TCR)

    August 1, 1992 – August 31, 1992

    Resolved
  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    July 1, 1991 – July 31, 1991

    Resolved
  • Monitoring, Routine Major (TCR)

    Coliform (TCR)

    April 1, 1991 – April 30, 1991

    Resolved
  • Monitoring, Regular

    Gross Alpha, Excl. Radon and U

    June 1, 1976 – May 31, 1980

    Archived
  • Monitoring, 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)

Enforcement actions

No enforcement actions on record for this system.

Contact

SOUTH HILLS WATER SYSTEM

503-318-4587

HILLSBORO, OR 97123