Public water system · CT0413011
ActiveOak Grove Senior Housing Corp
At a glance
Oak Grove Senior Housing Corp (PWSID CT0413011) is an active community water system in Middlesex County, Connecticut. It reports serving 72 people through 37 service connections. Its primary water source is groundwater, and EPA lists it as owned by a local government. EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2016.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
72
Service connections
37
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Oak Grove Senior Housing Corp compare with other water systems in Middlesex County?
By EPA's size categories, Oak Grove Senior Housing Corp is a very small system (500 people or fewer). Middlesex County has 277 active public water systems. Its population served is well below the county average of 353 people per system, and accounts for less than 0.1% of the 97,777 people reported by systems filed under the county. Across Connecticut, the 2,363 active systems average 1,247 people each. Nationally, the average active community water system reports serving 6,703 people, so Oak Grove Senior Housing Corp is well below that figure.
What does “community water system” mean?
A community water system serves at least 15 connections used by year-round residents, or regularly serves at least 25 year-round residents. Homes, apartments and mobile-home parks are served by these. Connecticut has 481 active community water systems, 20% of the state's 2,363 active systems. Groundwater means the system draws its water from wells or springs fed by underground aquifers. 2,263 Connecticut systems (96%) list groundwater as their primary source.
Who owns and regulates Oak Grove Senior Housing Corp?
EPA lists Oak Grove Senior Housing Corp as owned by a local government. The CT state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 45 of the 277 active systems in Middlesex County (16%) are also owned by a local government.
Does Oak Grove Senior Housing Corp have drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2016. The violations listed here began between January 1993 and August 2016. By type: 3 public notice, recordkeeping or other and 1 monitoring and reporting. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 4 as resolved. Resolved means at least one resolving action is on record: the system returned to compliance, the rule no longer applies, or no further action was needed.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2016-08-10 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-08-10 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2008-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 1993-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
All 4 violations in EPA's records, newest first.Labels and codes come from EPA's SDWIS reference tables. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found. "Health-based" marks violations of a legal limit or required treatment.
Oak Grove Senior Housing Corp: frequently asked questions
Who runs Oak Grove Senior Housing Corp?
Oak Grove Senior Housing Corp (PWSID CT0413011) is a community water system owned by a local government. It is regulated by the CT state drinking water program.
How many people does Oak Grove Senior Housing Corp serve?
Oak Grove Senior Housing Corp reports serving 72 people through 37 service connections in Middlesex County, Connecticut.
Where does Oak Grove Senior Housing Corp get its water?
EPA SDWIS lists this system's primary water source as groundwater. Groundwater means the system draws its water from wells or springs fed by underground aquifers.
Does Oak Grove Senior Housing Corp have any drinking water violations?
EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2016. A monitoring or reporting violation means a required test or report was missed or late; it does not by itself mean a contaminant was found.
Is Oak Grove Senior Housing Corp's water safe to drink?
AquaCensus shows EPA compliance records, not current water test results, so it cannot say whether the water is safe at a given moment. EPA's records list 4 violations for this system; none is health-based, and the most recent began in August 2016. For current results, consult the system's annual water quality report, EPA ECHO, or the CT state drinking water program.
Where can I find Oak Grove Senior Housing Corp's water quality report?
As a community water system, Oak Grove Senior Housing Corp must deliver an annual water quality report, called a Consumer Confidence Report, to its customers by July 1 each year, covering the previous calendar year. The system can provide a copy on request.
Other water systems in Middlesex County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Middletown Water Department | Middlesex | 41,019 | Community | Surface water |
| Cromwell Fire District Water Department | Middlesex | 14,316 | Community | Groundwater |
| Ctwc - Shoreline Region-Chester System | Middlesex | 5,030 | Community | Surface water |
| Portland Water Department | Middlesex | 5,010 | Community | Purchased surface water |
| Connecticut Valley Hospital | Middlesex | 2,928 | Community | Surface water |
| Pratt & Whitney | Middlesex | 2,800 | Non-transient non-community | Groundwater |
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About this data
Source: U.S. EPA Safe Drinking Water Information System (SDWIS) and SDWA violation records, via EPA ECHO, as published October 1, 2026 — AquaCensus refreshes it quarterly. See the methodology for how records are matched, cleaned and scored.
Cite as: AquaCensus, “Oak Grove Senior Housing Corp, PWSID CT0413011, Connecticut”, https://aquacensus.com/water-systems/connecticut/oak-grove-senior-housing-corp-ct0413011 (data as of October 1, 2026).