Public water system record
Aquarion-Dean Heights
Serves an area of Western Connecticut Planning Region, CT · 162 people served
Federal records show no health-based violations and 2 monitoring/reporting issues for Aquarion-Dean Heights 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
- 2
Key facts
- Aquarion-Dean Heights draws water from 3 wells.
- Most recent formal enforcement: compliance order with a penalty by Connecticut, September 2002.
- Record on file since 1992, with 7 health-based violations before October 19, 2016.
- Lead pipe inventory: 0 lead and 62 unknown out of 62 service lines.
Check whether Aquarion-Dean Heights 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 |
|---|---|---|
|
Lead and Copper Rule
Monitoring and reporting
|
Dec 30, 2019 | Resolved |
|
Consumer Confidence Rule
OTHER
|
Jul 1, 2018 | Resolved |
Full record since 1992
EPA's records for Aquarion-Dean Heights go back to 1992. Before October 19, 2016 they list 7 health-based violations (7 resolved) and 37 monitoring or reporting violations.
| Violations that began in | Health-based | Monitoring and reporting |
|---|---|---|
| 1990s | 3 | 27 |
| 2000s | 4 | 8 |
| 2010 to October 18, 2016 | 0 | 2 |
| October 19, 2016 to 2019 | 0 | 2 |
Most recent health-based violation before October 19, 2016: Total Coliform, began November 2002, Resolved.
Show all 7 health-based violations before October 19, 2016
| Contaminant | Start date | Status |
|---|---|---|
|
Total Coliform
Contaminant limit exceeded
|
Nov 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Oct 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Aug 1, 2002 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
May 1, 2001 | Resolved |
|
Lead and Copper Rule
Treatment technique failure
|
Jul 1, 1998 | Resolved |
|
Total Coliform (acute)
Contaminant limit exceeded
|
Aug 1, 1997 | Resolved |
|
Total Coliform
Contaminant limit exceeded
|
Jul 1, 1997 | Resolved |
Enforcement actions
Connecticut regulators took 3 formal enforcement actions against Aquarion-Dean Heights between 1997 and 2002. The most recent was a compliance order with a penalty in September 2002.
| Date | By | Action | Violations covered |
|---|---|---|---|
| Sep 19, 2002 | Connecticut | Compliance order with a penalty | 1 violation: Lead and Copper Rule |
| Aug 14, 1997 | Connecticut | Compliance order with a penalty | 1 violation: Total Coliform |
| Mar 5, 1997 | Connecticut | Signed compliance agreement | 1 violation: Gross Alpha, Excl. Radon and U |
Where the water comes from
Aquarion-Dean Heights draws water from 3 wells.
Annual water quality report
Aquarion-Dean Heights 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 500 or fewer people may meet the rule by telling customers the report is available on request, so you may need to ask Aquarion-Dean Heights for a copy.
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