Drinking Water Compliance OS

HAPPY VALLEY, OR · Multnomah County

TERRAND MOBILE TERRACE 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)
OR4101157
System type
Community Water System
Population served
71
Service connections
40
Ownership
privately owned
Water source
groundwater (wells)

Violation history

  • Consumer Confidence Report Complete Failure to Report

    —

    Consumer Confidence Rule

    July 1, 2024 – August 28, 2024

    Resolved

  • Monitoring, Source Water (GWR)

    —

    E. COLI

    December 2, 2020 – December 2, 2020

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2020 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    January 1, 2017 – December 31, 2022

    Resolved

  • Monitoring, Regular

    —

    Combined Uranium

    January 1, 2017 – December 31, 2025

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    January 1, 2017 – December 31, 2025

    Archived

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    January 1, 2009 – January 31, 2009

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 2008 – February 29, 2008

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    December 1, 2007 – December 31, 2007

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    November 1, 2007 – November 30, 2007

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    October 1, 2005 – October 31, 2005

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloroethane

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Carbon tetrachloride

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-Dichloropropane

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Total Polychlorinated Biphenyls (PCB)

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Chlordane

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2,4-Trichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    o-Dichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Toxaphene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Diquat

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Simazine

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Dinoseb

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Carbofuran

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    Heptachlor epoxide

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 2005 – December 31, 2007

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 2005 – December 31, 2007

    Resolved

  • Maximum Contaminant Level Violation, Monthly (TCR)

    Health-based

    Coliform (TCR)

    August 1, 1997 – August 31, 1997

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    August 1, 1997 – August 31, 1997

    Resolved

  • Monitoring, Repeat Major (TCR)

    —

    Coliform (TCR)

    July 1, 1997 – July 31, 1997

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Endrin

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    ETHYLENE DIBROMIDE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Glyphosate

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Heptachlor

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    HEXACHLOROBENZENE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Hexachlorocyclopentadiene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Methoxychlor

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Pentachlorophenol

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) phthalate

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Picloram

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    OXAMYL

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    1,1-Dichloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    1,1,1-Trichloroethane

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    1,1,2-Trichloroethane

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Benzene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    DICHLOROMETHANE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Ethylbenzene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    CHLOROBENZENE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    p-Dichlorobenzene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Styrene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Xylenes, Total

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Arsenic

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Cadmium

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Chromium

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Atrazine

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4-D

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    LASSO

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Benzo(a)pyrene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    BHC-GAMMA

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Dalapon

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Endothall

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    2,4,5-TP

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1996 – December 31, 1998

    Resolved

  • Initial Tap Sampling for Pb and Cu

    —

    Lead and Copper Rule

    July 1, 1994 – June 5, 1995

    Resolved

  • Monitoring, Routine Minor (TCR)

    —

    Coliform (TCR)

    July 1, 1991 – July 31, 1991

    Resolved

  • Monitoring, Repeat Minor (TCR)

    —

    Coliform (TCR)

    June 1, 1991 – June 30, 1991

    Resolved

  • Monitoring, Regular

    —

    Combined Radium (-226 and -228)

    June 1, 1976 – May 31, 1980

    Archived

  • Monitoring, Regular

    —

    Gross Alpha, Excl. Radon and U

    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

Contact

TERRAND MOBILE TERRACE

503-788-7370

HAPPY VALLEY, OR 97086