Public water system · CT0760021
ActiveCtwc - Green Springs System
At a glance
Ctwc - Green Springs System (PWSID CT0760021) is an active community water system in New Haven County, Connecticut. It reports serving 104 people through 27 service connections. Its primary water source is groundwater, and EPA lists it as privately owned. Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2015.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
104
Service connections
27
Primary source
GW
Groundwater
System type
CWS
Community water system
System record
How does Ctwc - Green Springs System compare with other water systems in New Haven County?
By EPA's size categories, Ctwc - Green Springs System is a very small system (500 people or fewer). New Haven County has 212 active public water systems. Its population served is well below the county average of 3,412 people per system, and accounts for less than 0.1% of the 723,334 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 Ctwc - Green Springs System 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 Ctwc - Green Springs System?
EPA lists Ctwc - Green Springs System as privately owned. 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. 174 of the 212 active systems in New Haven County (82%) are also privately owned.
Does Ctwc - Green Springs System have drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2015. The violations listed here began between January 2008 and October 2015. By type: 7 monitoring and reporting, 4 public notice, recordkeeping or other and 1 required treatment not met. The contaminant or rule involved most often is Consumer Confidence Rule (3 of them). EPA lists 11 as resolved and 1 as unaddressed. 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. Unaddressed means the violation is not resolved or archived and is not yet covered by formal enforcement.
| Began | Violation | Contaminant or rule | Health-based | Status |
|---|---|---|---|---|
| 2015-10-03 | Public notice, recordkeeping or otherPublic Notification Violation for NPDWR Violation · code 75 | Public Noticecode 7500 | No | Resolved |
| 2013-08-10 | Public notice, recordkeeping or otherConsumer Confidence Report Inadequate Reporting · code 72 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2013-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2012-12-01 | Required treatment not metPublic Education · code 65 | Lead and Copper Rulecode 5000 | Yes | Resolved |
| 2010-01-01 | Monitoring and reportingWater Quality Parameter M/R · code 53 | Lead and Copper Rulecode 5000 | No | Resolved |
| 2009-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Unaddressed |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross alpha (excluding radon and uranium)code 4000 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Tritiumcode 4102 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Man-made beta particle and photon emitterscode 4101 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Strontium-90code 4174 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Gross Beta Particle Activitycode 4100 | No | Resolved |
| 2008-01-01 | Monitoring and reportingMonitoring, Regular · code 03 | Combined Radium (-226 and -228)code 4010 | 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.
Ctwc - Green Springs System: frequently asked questions
Who runs Ctwc - Green Springs System?
Ctwc - Green Springs System (PWSID CT0760021) is a community water system privately owned. It is regulated by the CT state drinking water program.
How many people does Ctwc - Green Springs System serve?
Ctwc - Green Springs System reports serving 104 people through 27 service connections in New Haven County, Connecticut.
Where does Ctwc - Green Springs System 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 Ctwc - Green Springs System have any drinking water violations?
Of the 12 most recent violations in EPA's records, one is health-based, and the most recent began in October 2015. 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 Ctwc - Green Springs System'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, one is health-based, and the most recent began in October 2015. For current results, consult the system's annual water quality report, EPA ECHO, or the CT state drinking water program.
Where can I find Ctwc - Green Springs System's water quality report?
As a community water system, Ctwc - Green Springs System 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 New Haven County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Regional Water Authority | New Haven | 418,900 | Community | Surface water |
| Waterbury Water Department | New Haven | 107,271 | Community | Surface water |
| Meriden Water Division | New Haven | 58,441 | Community | Surface water |
| Wallingford Water Department | New Haven | 37,267 | Community | Surface water |
| Ctwc - Shoreline Region-Guilford System | New Haven | 33,975 | Community | Surface water |
| Ctwc - Naugatuck Region-Central System | New Haven | 22,735 | Community | Surface water |
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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, “Ctwc - Green Springs System, PWSID CT0760021, Connecticut”, https://aquacensus.com/water-systems/connecticut/ctwc-green-springs-system-ct0760021 (data as of October 1, 2026).