Public Water Partners

BEND, OR · Deschutes County

RANCHO EL SERENO HOMEOWNERS Water System

Inactive system

This water system is marked inactive in EPA’s federal records as of January 18, 2000. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.

If you are a resident looking for your current water provider, see water systems in Deschutes County, OR.

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)
OR4100107
System type
Community Water System
Population served
90
Service connections
42
Ownership
privately owned
Water source
groundwater (wells)

RANCHO EL SERENO HOMEOWNERS is one of 1,168 community water systems in Oregon in the 500 or fewer people size category, formerly serving 90 people from groundwater.

EPA's federal records list this system as inactive in 2000; the record below is historical.

As of August 1, 2026, its federal record holds 44 entries between 1976 and 1999, all of which EPA lists as closed. Nothing has been added since 1999.

All 44 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 synthetic organic chemicals, inorganic chemicals, and volatile organic chemicals.

Violation history

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    August 1, 1999 – August 31, 1999

    Resolved

  • Monitoring, Regular

    —

    Nitrate

    January 1, 1998 – 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

    —

    Heptachlor epoxide

    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

    —

    1,2-Dichloroethane

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    cis-1,2-Dichloroethylene

    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

    —

    Styrene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Tetrachloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Toluene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    trans-1,2-Dichloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Trichloroethylene

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Vinyl chloride

    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

    —

    Mercury

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Antimony, Total

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Beryllium, Total

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    CYANIDE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Nickel

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Nitrite

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Fluoride

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    1,2-DIBROMO-3-CHLOROPROPANE

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Diquat

    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

    —

    Carbofuran

    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

    —

    2,4,5-TP

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Regular

    —

    Di(2-ethylhexyl) adipate

    January 1, 1996 – December 31, 1998

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    September 1, 1993 – September 30, 1993

    Resolved

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    October 1, 1991 – October 31, 1991

    Archived

  • Monitoring, Routine Major (TCR)

    —

    Coliform (TCR)

    February 1, 1991 – February 28, 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.

Last known contact on file (system is inactive)

Not on record

Phone not on record

BEND, OR 97701