Public water system record
City of Oroville
Serves an area of Okanogan County, WA that includes Oroville · 3,256 people served
Federal records show no health-based violations and 20 monitoring/reporting issues for City of Oroville in the last ten years.
System profile
- Health-based violations, last 10 years
- 0
- Resolved
- 0
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 20
Key facts
- City of Oroville draws water from 5 wells (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: signed compliance agreement by Washington, April 1993.
- Record on file since 1979, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 1,596 service lines.
Check whether City of Oroville serves your address
Health-based violations
Since October 2016Violation data reflects EPA records through March 2026. For the most current status, visit the EPA ECHO database.
None since October 2016.
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Pentachlorophenol
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
2,4,5-TP
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Dinoseb
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Picloram
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Dalapon
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Chlordane
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Benzo(a)pyrene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
HEXACHLOROBENZENE
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Heptachlor epoxide
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Heptachlor
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
LASSO
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Atrazine
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Hexachlorocyclopentadiene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Di(2-ethylhexyl) phthalate
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Simazine
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Di(2-ethylhexyl) adipate
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Toxaphene
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Methoxychlor
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
BHC-GAMMA
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
|
Endrin
Monitoring and reporting
|
Jan 1, 2014 | Resolved |
Full record since 1979
EPA's records for City of Oroville go back to 1979. Before October 19, 2016 they list 7 health-based violations (7 archived by EPA without a recorded fix) and 71 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 1 |
| 1990s | 6 | 2 |
| 2000s | 1 | 33 |
| 2010 to October 18, 2016 | 0 | 35 |
Most recent health-based violation before October 19, 2016: Total Coliform, began September 2004, Archived.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2004 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1997 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1993 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 1992 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1992 | Archived |
Enforcement actions
Washington regulators took 1 formal enforcement action against City of Oroville in 1993. The most recent was a signed compliance agreement in April 1993.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 7, 1993 | Washington | Signed compliance agreement | 5 violations (4 health-based): Total Coliform |
Where the water comes from
City of Oroville draws water from 5 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
City of Oroville must give its customers an annual water quality report (Consumer Confidence Report) by July 1, with the levels its tests found in the previous year.
Where the state allows it, systems serving fewer than 10,000 people may publish the report in a local newspaper or news site instead of mailing it, and must provide a copy on request.
Find a posted report with EPA's Consumer Confidence Report search
Testing your own water
To test the water at your tap, or a private well this record does not cover, use a laboratory certified for drinking water by Washington.
Certified drinking water labs by state EPA guidance for private wells