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HILLSBORO-CHERRY GROVE

Oregon — Community Water System — PWSID: OR4100985

System Information

PWSIDOR4100985
System NameHILLSBORO-CHERRY GROVE
System TypeCommunity Water System
Water SourceSurface Water
Activity StatusActive
Owner TypeLocal
EPA Region10
Serves SchoolNo
WholesalerNo
First ReportedMar 12, 1979
Last ReportedDec 23, 2025

Location & Contact

StateOregon
CityHILLSBORO
ZIP Code97123
Address150 E MAIN ST
OrganizationHILLSBORO-CHERRY GROVE
Phone503-615-6579

Population & Service

Population Served1,628
Service Connections577

Drinking Water Violations (54)

This water system has 54 violations recorded in the EPA SDWIS database.

Begin Date End Date Contaminant Category Health-Based Major Measured Federal MCL State MCL Status Return to Compliance Rule
Jul 1, 2025 — Consumer Confidence Rule Other No No — — — Resolved Jul 8, 2025 Consumer Confidence Rule
Jul 1, 2023 Jul 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2023 Surface Water Treatment Rule
Jul 1, 2023 Jul 31, 2023 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2023 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Jul 1, 2023 Jul 31, 2023 Surface Water Treatment Rule MR No Yes — — — Resolved Jul 31, 2023 Surface Water Treatment Rule
Aug 1, 2019 Aug 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2019 Surface Water Treatment Rule
Aug 1, 2019 Aug 31, 2019 Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2019 Surface Water Treatment Rule
Aug 1, 2019 Aug 31, 2019 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Aug 31, 2019 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2014 Oct 31, 2014 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2014 Surface Water Treatment Rule
Oct 1, 2014 Oct 31, 2014 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2014 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Oct 1, 2014 Oct 31, 2014 Surface Water Treatment Rule MR No Yes — — — Resolved Oct 31, 2014 Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Interim Enhanced Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Interim and Long Term 1 Enhanced Surface Water Treatment Rule
Dec 1, 2009 Dec 31, 2009 Surface Water Treatment Rule MR No Yes — — — Resolved Dec 31, 2009 Surface Water Treatment Rule
Jan 1, 2009 Jan 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Jan 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Jan 31, 2009 TTHM MR No Yes — 0.080 mg/L — Resolved Jan 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Jan 31, 2009 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jan 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2009 Jan 31, 2009 Total Haloacetic Acids (HAA5) MR No Yes — 0.060 mg/L — Resolved Jan 31, 2009 Stage 1 Disinfectants and Disinfection Byproducts Rule
Jan 1, 2007 Dec 31, 2007 o-Dichlorobenzene MR No Yes — 0.6 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 trans-1,2-Dichloroethylene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Arsenic MR No Yes — 0.010 mg/L — Resolved Dec 31, 2007 Arsenic Rule
Jan 1, 2007 Dec 31, 2007 Ethylbenzene MR No Yes — 0.7 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Benzene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 1,2,4-Trichlorobenzene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 cis-1,2-Dichloroethylene MR No Yes — 0.07 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Nitrate MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Nitrate Rule
Jan 1, 2007 Dec 31, 2007 1,1,1-Trichloroethane MR No Yes — 0.2 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Xylenes, Total MR No Yes — 10 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Styrene MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Toluene MR No Yes — 1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 CHLOROBENZENE MR No Yes — 0.1 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 DICHLOROMETHANE MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 p-Dichlorobenzene MR No Yes — 0.075 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Tetrachloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Vinyl chloride MR No Yes — 0.002 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 1,1-Dichloroethylene MR No Yes — 0.007 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 1,2-Dichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 1,1,2-Trichloroethane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Trichloroethylene MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 1,2-Dichloropropane MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 1, 2007 Dec 31, 2007 Carbon tetrachloride MR No Yes — 0.005 mg/L — Resolved Dec 31, 2007 Volatile Organic Chemicals
Jan 2, 2002 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 11, 2000 Lead and Copper Rule
Jan 2, 2002 — Lead and Copper Rule TT Yes No — TT — Resolved Dec 11, 2000 Lead and Copper Rule
Mar 1, 2000 Mar 31, 2000 Surface Water Treatment Rule MR No Yes — — — Resolved Mar 31, 2000 Surface Water Treatment Rule
Jul 1, 1998 — Lead and Copper Rule TT Yes No — TT — Resolved Oct 27, 2000 Lead and Copper Rule
Jul 1, 1998 — Lead and Copper Rule TT Yes No — TT — Resolved Oct 27, 2000 Lead and Copper Rule
Jan 1, 1992 Oct 1, 1993 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 1, 1993 Surface Water Treatment Rule
Jan 1, 1992 Oct 1, 1993 Surface Water Treatment Rule TT Yes No — — — Resolved Oct 1, 1993 Surface Water Treatment Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MR No Yes — 5% of samples — Archived Nov 30, 1991 Total Coliform Rule
Nov 1, 1991 Nov 30, 1991 Coliform (TCR) MR No No — 5% of samples — Resolved Nov 30, 1991 Total Coliform Rule

About This Water System

Public water system data comes from the EPA Safe Drinking Water Information System (SDWIS). Systems with violations must notify customers. Contact your water utility for the latest annual water quality report.

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