Public water system · CT1160011
ActivePutnam Water Pollution Control Authority
At a glance
Putnam Water Pollution Control Authority (PWSID CT1160011) is an active community water system in Windham County, Connecticut. It reports serving 7,300 people through 2,230 service connections. Its primary water source is surface water, and EPA lists it as owned by a local government. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
7,300
Service connections
2,230
Primary source
SW
Surface water
System type
CWS
Community water system
System record
How does Putnam Water Pollution Control Authority compare with other water systems in Windham County?
By EPA's size categories, Putnam Water Pollution Control Authority is a medium system (3,301 to 10,000 people). Windham County has 254 active public water systems, and Putnam Water Pollution Control Authority is the 2nd-largest of them by population served. Its population served is about 29 times the county average of 251 people per system, and accounts for 11% of the 63,868 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 Putnam Water Pollution Control Authority is roughly in line with 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. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 38 Connecticut systems (1.6%) list surface water as their primary source.
Who owns and regulates Putnam Water Pollution Control Authority?
EPA lists Putnam Water Pollution Control Authority 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. 30 of the 254 active systems in Windham County (12%) are also owned by a local government.
Does Putnam Water Pollution Control Authority have drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. The violations listed here began between January 2025 and January 2025. By type: 12 monitoring and reporting. The contaminants or rules involved are Chlorobenzene, 1,1,1-Trichloroethane, Carbon tetrachloride and 1,2,4-Trichlorobenzene. EPA lists 12 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 |
|---|---|---|---|---|
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Chlorobenzenecode 2989 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,1-Trichloroethanecode 2981 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Carbon tetrachloridecode 2982 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2,4-Trichlorobenzenecode 2378 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Toluenecode 2991 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Ethylbenzenecode 2992 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tetrachloroethylenecode 2987 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Benzenecode 2990 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | trans-1,2-Dichloroethylenecode 2979 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,1,2-Trichloroethanecode 2985 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | o-Dichlorobenzenecode 2968 | No | Resolved |
| 2025-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | 1,2-Dichloropropanecode 2983 | No | Resolved |
The 12 most recent 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.
Putnam Water Pollution Control Authority: frequently asked questions
Who runs Putnam Water Pollution Control Authority?
Putnam Water Pollution Control Authority (PWSID CT1160011) is a community water system owned by a local government. It is regulated by the CT state drinking water program.
How many people does Putnam Water Pollution Control Authority serve?
Putnam Water Pollution Control Authority reports serving 7,300 people through 2,230 service connections in Windham County, Connecticut.
Where does Putnam Water Pollution Control Authority get its water?
EPA SDWIS lists this system's primary water source as surface water. Surface water means the system draws its water from rivers, lakes, streams or reservoirs.
Does Putnam Water Pollution Control Authority have any drinking water violations?
Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. 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 Putnam Water Pollution Control Authority'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. Of the 12 most recent violations in EPA's records, none is health-based, and the most recent began in January 2025. For current results, consult the system's annual water quality report, EPA ECHO, or the CT state drinking water program.
Where can I find Putnam Water Pollution Control Authority's water quality report?
As a community water system, Putnam Water Pollution Control Authority 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 Windham County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Windham Water Works | Windham | 21,214 | Community | Surface water |
| Ctwc - Crystal System | Windham | 6,378 | Community | Groundwater |
| Ctwc - Gallup System | Windham | 2,538 | Community | Groundwater |
| Ctwc - Plainfield System | Windham | 1,713 | Community | Groundwater |
| Killingly High School & Agricultural Ctr | Windham | 1,400 | Non-transient non-community | Groundwater |
| Woodstock Academy | Windham | 1,125 | Non-transient non-community | Groundwater |
Related pages
Working with water-system records? Pro adds alerts, change history and CSV export ($49/mo); Enterprise adds full national files, the API and an MCP server for AI tools.
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, “Putnam Water Pollution Control Authority, PWSID CT1160011, Connecticut”, https://aquacensus.com/water-systems/connecticut/putnam-water-pollution-control-authority-ct1160011 (data as of October 1, 2026).