OAKDALE, CT · New London County
ST. THOMAS MORE SCHOOL-SYSTEM #5 Water System
Inactive system
This water system is marked inactive in EPA’s federal records as of January 17, 2002. It is no longer an operating public water system under this PWSID, and no compliance deadlines — including the 2027 Consumer Confidence Report rule — apply to it.
If you are a resident looking for your current water provider, see water systems in New London County, CT.
Data sourced from the EPA ECHO database (SDWA bulk download), last refreshed August 1, 2026. This is a record-keeping and public-information tool — it does not replace Connecticut’s official records. Always confirm current status with Connecticut before making decisions based on this information.
System facts
- System ID (PWSID)
- CT0861261
- System type
- Community Water System
- Population served
- 260
- Service connections
- 17
- Ownership
- privately owned
- Water source
- groundwater (wells)
ST. THOMAS MORE SCHOOL-SYSTEM #5 is one of 799 community water systems in Connecticut in the 500 or fewer people size category, formerly serving 260 people from groundwater.
EPA's federal records list this system as inactive in 2002; the record below is historical.
As of August 1, 2026, its federal record holds 4 entries between 1996 and 2003, all of which EPA lists as closed. Nothing has been added since 2003.
Of the 4, 3 are monitoring and reporting requirements — the category that accounts for about four in five of all violations in EPA's national dataset — rather than findings about the water itself. The record involves inorganic chemicals, the Lead and Copper Rule, and the Total Coliform Rules.
Violation history
Monitoring, Regular
—Nitrate
January 1, 2003 – January 17, 2002
ResolvedMonitoring, Regular
—Nitrite
January 1, 2003 – January 17, 2002
ResolvedFollow-up Or Routine LCR Tap M/R
—Lead and Copper Rule
October 1, 2001 – January 17, 2002
ResolvedMaximum Contaminant Level Violation, Monthly (TCR)
Health-basedColiform (TCR)
February 1, 1996 – February 29, 1996
Resolved
Resolved addressed and confirmed by the state
| Period | Violation | Contaminant / rule | Health-based | Status |
|---|---|---|---|---|
| January 1, 2003 – January 17, 2002 | Monitoring, Regular | Nitrate | — | Resolved |
| January 1, 2003 – January 17, 2002 | Monitoring, Regular | Nitrite | — | Resolved |
| October 1, 2001 – January 17, 2002 | Follow-up Or Routine LCR Tap M/R | Lead and Copper Rule | — | Resolved |
| February 1, 1996 – February 29, 1996 | Maximum Contaminant Level Violation, Monthly (TCR) | Coliform (TCR) | Health-based | Resolved |
Resolved addressed and confirmed by the state
Enforcement actions
- January 17, 2002State Compliance achieved4 linked violations
- October 19, 1995State Public Notification received27 linked violations
- September 15, 1995State Public Notification requested4 linked violations
Last known contact on file (system is inactive)
Not on record
860-859-1900
OAKDALE, CT 06370