Public water system record
Nas North Island & Nab Coronado
Serves Coronado, San Diego County, CA · 36,990 people served
Federal records show no health-based violations and no monitoring or reporting issues for Nas North Island & Nab Coronado 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
- 0
Key facts
- Nas North Island & Nab Coronado buys its water from City of San Diego.
- Most recent formal enforcement: compliance order (no penalty) by California, April 2008.
- Record on file since 2005, with 4 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 798 service lines.
Check whether Nas North Island & Nab Coronado 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, and no monitoring or reporting violations either.
Full record since 2005
EPA's records for Nas North Island & Nab Coronado go back to 2005. Before October 19, 2016 they list 4 health-based violations (4 resolved) and no monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 4 | 0 |
Most recent health-based violation before October 19, 2016: Total Coliform, began January 2008, Resolved.
Show all 4 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Jan 1, 2008 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.09231 mg/L, federal limit 0.08 mg/L (1.2 times the limit)
|
Jul 1, 2006 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.141 mg/L, federal limit 0.08 mg/L (1.8 times the limit)
|
Jul 1, 2005 | Resolved |
|
Total Trihalomethanes (TTHMs)
Contaminant limit exceeded
Measured 0.1022 mg/L, federal limit 0.08 mg/L (1.3 times the limit)
|
Apr 1, 2005 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against Nas North Island & Nab Coronado in 2008. The most recent was a compliance order (no penalty) in April 2008.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 30, 2008 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
Nas North Island & Nab Coronado buys its water from City of San Diego. It lists no wells or intakes of its own. It also has an emergency connection to Cal-Am Water Coronado. 1 other public water system has an emergency connection to Nas North Island & Nab Coronado.
Buys water from
- City of San Diego San Diego, CA
Emergency or part-time connections to
- Cal-Am Water Coronado Imperial Beach, CA
Annual water quality report
Nas North Island & Nab Coronado 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