Public water system record
Aquarion-Darien
Serves Norwalk, Western Connecticut Planning Region, CT · 18,737 people served
Federal records show no health-based violations and 1 monitoring/reporting issue for Aquarion-Darien 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
- Aquarion-Darien buys its water from Aquarion-Stamford, South Norwalk Electric & Water and Aquarion-Eastern Fairfield County.
- Record on file since 2006, with 0 health-based violations before October 19, 2016.
- Lead pipe inventory: 20 lead and 4,427 unknown out of 6,934 service lines.
Check whether Aquarion-Darien 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 |
|---|---|---|
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
Full record since 2006
EPA's records for Aquarion-Darien go back to 2006. Before October 19, 2016 they list no health-based violations and 1 monitoring or reporting violation.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 2000s | 0 | 1 |
| October 19, 2016 to 2019 | 0 | 1 |
Where the water comes from
Aquarion-Darien buys its water from Aquarion-Stamford, South Norwalk Electric & Water and Aquarion-Eastern Fairfield County. EPA also lists 1 well, all for emergency, seasonal or other part-time use. 1 other public water system has an emergency connection to Aquarion-Darien.
Buys water from
- Aquarion-Stamford Shelton, CT
- South Norwalk Electric & Water Wilton, CT
- Aquarion-Eastern Fairfield County Shelton, CT
Annual water quality report
Aquarion-Darien 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