Public water system record
Willowside Terrace Water Association
Serves Alpine, San Diego County, CA · 100 people served
Federal records show 9 health-based violations and 3 monitoring/reporting issues for Willowside Terrace Water Association in the last ten years, including an unresolved LEAD AND COPPER RULE REVISIONS violation.
System profile
- Health-based violations, last 10 years
- 9
- Resolved
- 3
- Unresolved
- 1
- Archived by EPA
- 5
- Any acute record
- Yes
- Monitoring issues, last 10 years
- 3
Key facts
- Willowside Terrace Water Association draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
- Highest measured level in the last 10 years: Nitrate, 13.3 mg/L, federal limit 10 mg/L (1.3 times the limit), 2017.
- Most recent formal enforcement: compliance order (no penalty) by California, August 2023.
- Record on file since 1980, with 13 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 32 service lines.
Check whether Willowside Terrace Water Association 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 | Active | No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Mar 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jan 1, 2024 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Oct 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Jul 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Combined Uranium
Contaminant limit exceeded
|
340 | Apr 1, 2023 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
Nitrate-Nitrite
Contaminant limit exceeded
|
330 | Jan 1, 2018 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 12.6 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
330 | Apr 1, 2017 | Resolved | Yes |
|
Nitrate
Contaminant limit exceeded
Measured 13.3 mg/L, federal limit 10 mg/L (1.3 times the limit)
|
330 | Jan 1, 2017 | Resolved | Yes |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
LEAD AND COPPER RULE REVISIONS
RPT
|
Oct 17, 2024 | Active |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2021 | Resolved |
|
Lead and Copper Rule
Monitoring and reporting
|
Oct 1, 2018 | Resolved |
Full record since 1980
EPA's records for Willowside Terrace Water Association go back to 1980. Before October 19, 2016 they list 13 health-based violations (13 resolved) and 13 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1980s | 0 | 7 |
| 2000s | 1 | 4 |
| 2010 to October 18, 2016 | 12 | 2 |
| October 19, 2016 to 2019 | 3 | 1 |
| 2020s | 6 | 2 |
Most recent health-based violation before October 19, 2016: Nitrate (acute), began April 2016, Resolved.
Show all 13 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Nitrate (acute)
Contaminant limit exceeded
Measured 12 mg/L, federal limit 10 mg/L (1.2 times the limit)
|
Apr 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
Measured 14.3 mg/L, federal limit 10 mg/L (1.4 times the limit)
|
Jan 1, 2016 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jan 1, 2015 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Jul 1, 2014 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jul 1, 2014 | Resolved |
|
Nitrate (acute)
Contaminant limit exceeded
|
Apr 1, 2014 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Apr 1, 2014 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Feb 1, 2014 | Resolved |
|
Nitrate-Nitrite (acute)
Contaminant limit exceeded
|
Jan 1, 2014 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Jun 1, 2012 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jun 1, 2008 | Resolved |
Enforcement actions
California regulators took 16 formal enforcement actions against Willowside Terrace Water Association and issued 1 boil water order between 2005 and 2023, filed as 19 records in EPA's data. The most recent was a compliance order (no penalty) in August 2023.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 30, 2023 | California | Compliance order (no penalty) | 5 violations (5 health-based): Combined Uranium |
| Nov 30, 2022 | California | Compliance order (no penalty) | 2 violations: Lead and Copper Rule |
| Nov 5, 2018 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Dec 8, 2016 | California | Compliance order (no penalty) | 10 violations (10 health-based): Nitrate, Nitrate-Nitrite |
| Jan 1, 2015 | California | Compliance order (no penalty) | 5 violations (5 health-based): Nitrate |
| Nov 14, 2014 | California | Compliance order (no penalty) | 2 violations (1 health-based): Nitrate-Nitrite, Consumer Confidence Rule |
| Sep 16, 2014 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Aug 12, 2014 | California | Boil water order | 1 violation (1 health-based): Nitrate-Nitrite |
| Jun 30, 2014 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate |
| Mar 28, 2014 | California | Compliance order (no penalty) | 2 violations (2 health-based): Nitrate-Nitrite |
| Jan 17, 2014 | California | Compliance order (no penalty) | 1 violation (1 health-based): Nitrate-Nitrite |
| Jul 5, 2012 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jan 12, 2011 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Apr 14, 2009 | California | Compliance order (no penalty) | 1 violation: Total Coliform |
| Jul 3, 2008 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
| Jul 12, 2007 | California | Compliance order (no penalty) | 2 violations: Total Trihalomethanes (TTHMs), Haloacetic Acids (HAA5) |
| Apr 7, 2005 | California | Compliance order (no penalty) | 1 violation: Nitrate-Nitrite |
What the violations mean
Combined Uranium
5 incidentsTest results for Combined Uranium were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about each of these violations.
Nitrate
2 incidentsNitrate exceeded the federal limit
High nitrate is especially dangerous for infants under 6 months and can cause blue baby syndrome
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.
Nitrate-Nitrite
1 incidentTest results for Nitrate-Nitrite were above the federal limit (a maximum contaminant level violation).
The utility had to notify customers about this violation.
Where the water comes from
Willowside Terrace Water Association draws water from 2 wells (1 of them for emergency, seasonal or other part-time use).
Annual water quality report
Willowside Terrace Water Association 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 Willowside Terrace Water Association 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 California.
Certified drinking water labs by state EPA guidance for private wells