Public water system record
Cuyamaca
Serves Olympia and Nisqually Indian Community, Thurston County, WA · 375 people served
Federal records show 1 health-based violation and 17 monitoring/reporting issues for Cuyamaca in the last ten years. The most serious issue in this window was a resolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 1
- Resolved
- 1
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 17
Key facts
- Cuyamaca draws water from 2 wells.
- Most recent formal enforcement: signed compliance agreement by EPA, September 2006.
- Record on file since 1994, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 49 unknown out of 81 service lines.
Check whether Cuyamaca 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 |
|---|---|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
Treatment technique failure
|
350 | Oct 17, 2024 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Public Notice
OTHER
|
Apr 3, 2025 | Resolved |
|
Chlorine
Monitoring and reporting
|
Jul 1, 2024 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Jul 1, 2024 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 31, 2023 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2023 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Revised Total Coliform Rule
Monitoring violation
|
Mar 1, 2022 | Resolved |
|
Nitrate
Monitoring and reporting
|
Jan 1, 2022 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Dec 1, 2020 | Resolved |
|
Revised Total Coliform Rule
Monitoring violation
|
Oct 1, 2020 | Resolved |
|
Haloacetic Acids (HAA5)
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Total Trihalomethanes (TTHMs)
Monitoring and reporting
|
Jan 1, 2020 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
|
Lead and Copper Rule
Monitoring and reporting
|
Jan 1, 2019 | Resolved |
Full record since 1994
EPA's records for Cuyamaca go back to 1994. Before October 19, 2016 they list no health-based violations and 186 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 0 | 70 |
| 2000s | 0 | 103 |
| 2010 to October 18, 2016 | 0 | 13 |
| October 19, 2016 to 2019 | 0 | 1 |
| 2020s | 1 | 16 |
Enforcement actions
EPA took 2 formal enforcement actions against Cuyamaca between 2000 and 2006. The most recent was a signed compliance agreement in September 2006.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 12, 2006 | EPA | Signed compliance agreement | 1 violation: Total Coliform |
| Jun 29, 2000 | EPA | Compliance order (no penalty) | 65 violations: Consumer Confidence Rule, Total Coliform, HEXACHLOROBENZENE, 2,3,7,8-TCDD, 2,4-D |
What the violations mean
LEAD AND COPPER RULE REVISIONS
1 incidentThe system did not complete a treatment step or action that the LEAD AND COPPER RULE REVISIONS requires (a treatment technique violation).
The utility had to notify customers about this violation.
Where the water comes from
Cuyamaca draws water from 2 wells.
Annual water quality report
Cuyamaca 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 Cuyamaca 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 EPA Region 10.
Certified drinking water labs by state EPA guidance for private wells