Public water system record
City of Yoncalla
Serves Yoncalla, Douglas County, OR · 1,050 people served
Federal records show 1 health-based violation and 38 monitoring/reporting issues for City of Yoncalla in the last ten years. The most serious issue in this window was a resolved Surface Water Treatment Rule violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 38
Key facts
- City of Yoncalla draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use).
- Most recent formal enforcement: compliance order with a penalty by Oregon, May 1994.
- Record on file since 1976, with 43 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 470 unknown out of 578 service lines.
Check whether City of Yoncalla 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.
| Contaminant | Rule family | Start date | Status | Acute |
|---|---|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
120 | Mar 1, 2022 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Oct 1, 2025 | Active |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2025 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2025 | Active |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2023 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Mar 1, 2022 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2021 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Nov 1, 2021 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jul 1, 2020 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
May 1, 2018 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Feb 1, 2018 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Jan 1, 2018 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Oct 1, 2017 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Interim Enhanced Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
|
Surface Water Treatment Rule
Monitoring and reporting
|
Dec 1, 2016 | Resolved |
Full record since 1976
EPA's records for City of Yoncalla go back to 1976. Before October 19, 2016 they list 43 health-based violations (43 resolved) and 170 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 43 | 33 |
| 2000s | 0 | 82 |
| 2010 to October 18, 2016 | 0 | 53 |
| October 19, 2016 to 2019 | 0 | 19 |
| 2020s | 1 | 19 |
Most recent health-based violation before October 19, 2016: Surface Water Treatment Rule, began September 1997, Resolved.
Show all 43 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1997 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1996 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1995 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Dec 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Nov 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Oct 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Sep 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Aug 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jul 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jun 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
May 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Apr 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Mar 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Feb 1, 1994 | Resolved |
|
Surface Water Treatment Rule
Treatment technique failure
|
Jan 1, 1994 | Resolved |
Enforcement actions
Oregon regulators took 1 formal enforcement action against City of Yoncalla in 1994. The most recent was a compliance order with a penalty in May 1994.
| Date | By | Action | Violations covered |
|---|---|---|---|
| May 19, 1994 | Oregon | Compliance order with a penalty | 1 violation (1 health-based): Surface Water Treatment Rule |
What the violations mean
Surface Water Treatment Rule
1 incidentThe system did not complete a treatment step or action that the Surface Water Treatment Rule requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
City of Yoncalla draws water from 2 surface water intakes (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
City of Yoncalla 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 Oregon.
Certified drinking water labs by state EPA guidance for private wells