Public water system record
Pismo Beach Water Department
Serves Pismo Beach, San Luis Obispo County, CA · 8,036 people served
Federal records show 3 health-based violations and 1 monitoring/reporting issue for Pismo Beach Water Department in the last ten years. The most serious issue in this window was a resolved Haloacetic Acids (HAA5) violation.
System profile
- Health-based violations, last 10 years
- 3
- Resolved
- 3
- Unresolved
- 0
- Any acute record
- No
- Monitoring issues, last 10 years
- 1
Key facts
- Pismo Beach Water Department draws water from 2 wells.
- Highest measured level in the last 10 years: Haloacetic Acids (HAA5), 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit), 2023.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2024.
- Record on file since 1993, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 4,676 service lines.
Check whether Pismo Beach Water Department 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 |
|---|---|---|---|---|
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.064 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jan 1, 2024 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.067 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Oct 1, 2023 | Resolved | No |
|
Haloacetic Acids (HAA5)
Contaminant limit exceeded
Measured 0.063 mg/L, federal limit 0.06 mg/L (1.1 times the limit)
|
220 | Jul 1, 2023 | Resolved | No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Nitrate
Monitoring and reporting
|
Jan 1, 2023 | Resolved |
Full record since 1993
EPA's records for Pismo Beach Water Department go back to 1993. Before October 19, 2016 they list 1 health-based violation (1 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2020s | 3 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began May 1993, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
May 1, 1993 | Resolved |
Enforcement actions
California regulators took 4 formal enforcement actions against Pismo Beach Water Department between 2023 and 2024. The most recent was a compliance order (no penalty) in April 2024.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 25, 2024 | California | Compliance order (no penalty) | 1 violation: Nitrate |
| Apr 15, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
| Feb 14, 2024 | California | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
| Oct 11, 2023 | California | Compliance order (no penalty) | 1 violation (1 health-based): Haloacetic Acids (HAA5) |
What the violations mean
Haloacetic Acids (HAA5)
3 incidentsHaloacetic acid byproducts exceeded the federal limit
Long-term exposure to HAAs may increase cancer risk
Where the water comes from
Pismo Beach Water Department draws water from 2 wells. It also buys water from Central Coast Water Authority and Lopez Project. It also has an emergency connection to City of Arroyo Grande Utilities Division. 1 other public water system has an emergency connection to Pismo Beach Water Department.
Buys water from
- Central Coast Water Authority Buellton, CA
- Lopez Project San Luis Obispo, CA
Emergency or part-time connections to
- City of Arroyo Grande Utilities Division Arroyo Grande, CA
Annual water quality report
Pismo Beach Water Department 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 California.
Certified drinking water labs by state EPA guidance for private wells