Public water system record
Grass Valley Water System
Serves Grass Valley, Sherman County, OR · 184 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Grass Valley Water System 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
- 1
Key facts
- Grass Valley Water System draws water from 2 wells.
- Most recent formal enforcement: compliance order with a penalty by Oregon, July 1998.
- Record on file since 1976, with 15 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 118 service lines.
Check whether Grass Valley Water System 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2022 | Resolved |
Full record since 1976
EPA's records for Grass Valley Water System go back to 1976. Before October 19, 2016 they list 15 health-based violations (14 resolved, 1 archived by EPA without a recorded fix) and 86 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1970s | 0 | 2 |
| 1990s | 10 | 70 |
| 2000s | 5 | 13 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began July 2009, Resolved.
Show all 15 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 2009 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2004 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2003 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 2000 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Apr 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 1998 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Dec 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1992 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Archived |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 1991 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Sep 1, 1991 | Resolved |
Enforcement actions
Oregon regulators took 1 formal enforcement action against Grass Valley Water System in 1998. The most recent was a compliance order with a penalty in July 1998.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Jul 29, 1998 | Oregon | Compliance order with a penalty | 13 violations (6 health-based): Total Coliform |
Where the water comes from
Grass Valley Water System draws water from 2 wells.
Annual water quality report
Grass Valley Water System 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.
Systems serving 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Grass Valley Water System for a copy.
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