Public water system record
City of Arroyo Grande Utilities Division
Serves Arroyo Grande, San Luis Obispo County, CA · 17,963 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for City of Arroyo Grande Utilities Division 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
- City of Arroyo Grande Utilities Division draws water from 8 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, August 2025.
- Record on file since 1996, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 6,693 service lines.
Check whether City of Arroyo Grande Utilities Division 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 |
|---|---|---|
|
Revised Total Coliform Rule
Monitoring violation
|
May 1, 2025 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
Full record since 1996
EPA's records for City of Arroyo Grande Utilities Division go back to 1996. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2010 to October 18, 2016 | 0 | 1 |
| 2020s | 0 | 1 |
Most recent health-based violation before October 19, 2016: Total Trihalomethanes (TTHMs), began August 1996, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
|
Aug 1, 1996 | Resolved |
Enforcement actions
California regulators took 2 formal enforcement actions against City of Arroyo Grande Utilities Division between 2013 and 2025. The most recent was a compliance order (no penalty) in August 2025.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Aug 1, 2025 | California | Compliance order (no penalty) | 1 violation: Revised Total Coliform Rule |
| Mar 12, 2013 | California | Compliance order (no penalty) | 1 violation: Nitrate |
Where the water comes from
City of Arroyo Grande Utilities Division draws water from 8 wells. It also buys water from Lopez Project. It also has emergency connections to Pismo Beach Water Department, City of Grover Beach Public Works Dept and Oceano Comm Services Dist. 3 other public water systems have emergency connections to City of Arroyo Grande Utilities Division.
Buys water from
- Lopez Project San Luis Obispo, CA
Emergency or part-time connections to
- Pismo Beach Water Department Pismo Beach, CA
- City of Grover Beach Public Works Dept Grover Beach, CA
- Oceano Comm Services Dist. Oceano, CA
Annual water quality report
City of Arroyo Grande Utilities Division 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 10,000 or more people must mail or deliver the report to every customer, and from 2027 they must send it twice a year.
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