Public water system record
GSWC - Southwest
Serves Gardena, Hawthorne, West Rancho Dominguez and 8 more places, Los Angeles County, CA · 277,740 people served
Federal records show no health-based violations and no monitoring or reporting issues for GSWC - Southwest 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
- GSWC - Southwest draws water from 13 wells.
- Most recent formal enforcement: compliance order (no penalty) by California, December 2011.
- Record on file since 2007, with 1 health-based violation before October 19, 2016.
- Lead pipe inventory: 0 lead and 0 unknown out of 53,883 service lines.
Check whether GSWC - Southwest 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 2007
EPA's records for GSWC - Southwest go back to 2007. Before October 19, 2016 they list 1 health-based violation (1 resolved) and 2 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 1 |
| 2010 to October 18, 2016 | 1 | 1 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2011, Resolved.
Show the health-based violation before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2011 | Resolved |
Enforcement actions
California regulators took 1 formal enforcement action against GSWC - Southwest in 2011. The most recent was a compliance order (no penalty) in December 2011.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Dec 30, 2011 | California | Compliance order (no penalty) | 1 violation (1 health-based): Total Coliform |
Where the water comes from
GSWC - Southwest draws water from 13 wells. It also buys water from Metropolitan Water Dist. of So. Cal. It also has emergency connections to Inglewood- City, Water Dept., Liberty Utilities - Compton, California Water Service Co. - Dominguez, Los Angeles-City, Dept. of Water & Power and Hawthorne-City Water Dept. 2 other public water systems have emergency connections to GSWC - Southwest.
Buys water from
- Metropolitan Water Dist. of So. Cal. La Verne, CA
Emergency or part-time connections to
- Inglewood- City, Water Dept. Inglewood, CA
- Liberty Utilities - Compton Downey, CA
- California Water Service Co. - Dominguez San Jose, CA
- Los Angeles-City, Dept. of Water & Power Los Angeles, CA
- Hawthorne-City Water Dept. San Jose, CA
Annual water quality report
GSWC - Southwest 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