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 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)
- OR4100107
- System type
- Community Water System
- Population served
- 90
- Service connections
- 42
- Ownership
- privately owned
- Water source
- groundwater (wells)
Violation history
Monitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 1999 – September 30, 1999
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
April 1, 1999 – April 30, 1999
ResolvedMonitoring, Regular
—Nitrate
January 1, 1998 – December 31, 1998
ResolvedMonitoring, Regular
—Picloram
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Carbon tetrachloride
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—CHLOROBENZENE
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Tetrachloroethylene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Toluene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—trans-1,2-Dichloroethylene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Trichloroethylene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Vinyl chloride
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Xylenes, Total
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Arsenic
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Cadmium
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Chromium
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Mercury
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Antimony, Total
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Beryllium, Total
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—CYANIDE
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Nickel
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Nitrite
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Fluoride
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—1,2-DIBROMO-3-CHLOROPROPANE
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Glyphosate
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—HEXACHLOROBENZENE
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Benzo(a)pyrene
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—BHC-GAMMA
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Dalapon
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Diquat
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Atrazine
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—2,4-D
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—Di(2-ethylhexyl) adipate
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Regular
—LASSO
January 1, 1996 – December 31, 1998
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
September 1, 1993 – September 30, 1993
ResolvedMonitoring, Routine Major (TCR)
—Coliform (TCR)
February 1, 1991 – February 28, 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 |
|---|---|---|---|---|
| September 1, 1999 – September 30, 1999 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| April 1, 1999 – April 30, 1999 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| January 1, 1998 – December 31, 1998 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Picloram | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Carbon tetrachloride | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | CHLOROBENZENE | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Tetrachloroethylene | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Toluene | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | trans-1,2-Dichloroethylene | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Trichloroethylene | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Vinyl chloride | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Xylenes, Total | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Arsenic | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Cadmium | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Chromium | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Mercury | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Antimony, Total | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Beryllium, Total | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | CYANIDE | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Nickel | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Nitrite | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Fluoride | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | 1,2-DIBROMO-3-CHLOROPROPANE | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Glyphosate | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | HEXACHLOROBENZENE | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Benzo(a)pyrene | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | BHC-GAMMA | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Dalapon | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Diquat | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Atrazine | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | 2,4-D | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | Di(2-ethylhexyl) adipate | — | Resolved |
| January 1, 1996 – December 31, 1998 | Monitoring, Regular | LASSO | — | Resolved |
| September 1, 1993 – September 30, 1993 | Monitoring, Routine Major (TCR) | Coliform (TCR) | — | Resolved |
| February 1, 1991 – February 28, 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.
Last known contact on file (system is inactive)
Not on record
Phone not on record
BEND, OR 97701