Public water system record
South Norwalk Electric & Water
Serves Norwalk, Western Connecticut Planning Region, CT · 42,000 people served
Federal records show 3 health-based violations and 2 monitoring/reporting issues for South Norwalk Electric & Water in the last ten years. The most serious issue in this window was a CARBON, TOTAL violation that EPA lists as archived, not resolved.
System profile
- Health-based violations, last 10 years
- 3
- Resolved
- 0
- Unresolved
- 0
- Archived by EPA
- 3
- Any acute record
- No
- Monitoring issues, last 10 years
- 2
Key facts
- South Norwalk Electric & Water draws water from 1 surface water intake and 4 reservoirs.
- Most recent formal enforcement: signed compliance agreement by Connecticut, April 2002.
- Record on file since 1991, with 2 health-based violations before October 19, 2016.
- Lead pipe inventory: 19 lead and 6,463 unknown out of 9,385 service lines.
Check whether South Norwalk Electric & Water 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 |
|---|---|---|---|---|
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
|
CARBON, TOTAL
Treatment technique failure
|
210 | Jan 1, 2019 |
Archived
Violation period ended. EPA no longer counts it toward current compliance, but no fix was formally recorded.
|
No |
Monitoring and reporting issues
Since October 2016Missed tests or reports, not contaminants found above a limit.
| Issue | Start date | Status |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Aug 10, 2024 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2024 | Resolved |
Full record since 1991
EPA's records for South Norwalk Electric & Water go back to 1991. Before October 19, 2016 they list 2 health-based violations (2 resolved) and 69 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 1 | 0 |
| 2000s | 1 | 69 |
| October 19, 2016 to 2019 | 3 | 0 |
| 2020s | 0 | 2 |
Most recent health-based violation before October 19, 2016: Interim Enhanced Surface Water Treatment Rule (acute), began November 2006, Resolved.
Show all 2 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Interim Enhanced Surface Water Treatment Rule (acute)
Treatment technique failure
|
Nov 1, 2006 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1991 | Resolved |
Enforcement actions
Connecticut regulators took 1 formal enforcement action against South Norwalk Electric & Water in 2002. The most recent was a signed compliance agreement in April 2002.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Apr 8, 2002 | Connecticut | Signed compliance agreement | 62 violations: Methoxychlor, Toxaphene, Aldicarb sulfoxide, Aldicarb, LASSO |
What the violations mean
CARBON, TOTAL
3 incidentsThe system did not complete a treatment step or action that federal rules require for CARBON, TOTAL (a treatment technique violation).
The utility had to notify customers about each of these violations.
Where the water comes from
South Norwalk Electric & Water draws water from 1 surface water intake and 4 reservoirs. It also has emergency connections to Aquarion-Eastern Fairfield County and Aquarion-Darien. 1 other community water system buys water from South Norwalk Electric & Water.
Emergency or part-time connections to
- Aquarion-Eastern Fairfield County Shelton, CT
- Aquarion-Darien Shelton, CT
Community systems that buy water from it
- Aquarion-Darien Shelton, CT
Annual water quality report
South Norwalk Electric & Water 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 Connecticut.
Certified drinking water labs by state EPA guidance for private wells