Public water system · NY4100050

Active

Troy City Pws

At a glance

Troy City Pws (PWSID NY4100050) is an active community water system in Rensselaer County, New York. It reports serving 51,401 people through 13,269 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, 3 are health-based, and the most recent began in July 2022.

Dataset updated October 2026 . Source: EPA SDWIS/ECHO public records.

Population served

51,401

Service connections

13,269

Primary source

Surface water

System type

CWS

Community water system

System record

PWSIDNY4100050

System typeCommunity water system

Activity statusActive

Population served51,401

Service connections13,269

Primary water sourceSurface water

Owner typeLocal government

Primacy agencyNY state drinking water program

City servedTroy (C)

StateNew York

ZIP—

CountyRensselaer County

How does Troy City Pws compare with other water systems in Rensselaer County?

By EPA's size categories, Troy City Pws is a large system (10,001 to 100,000 people). Rensselaer County has 146 active public water systems, and Troy City Pws is the largest of them by population served. Its population served is about 56 times the county average of 926 people per system, and accounts for 38% of the 135,123 people reported by systems filed under the county. Across New York, the 8,167 active systems average 2,374 people each. Nationally, the average active community water system reports serving 6,703 people, so Troy City Pws is about 7.7 times 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. New York has 2,281 active community water systems, 28% of the state's 8,167 active systems. Surface water means the system draws its water from rivers, lakes, streams or reservoirs. 296 New York systems (3.6%) list surface water as their primary source.

Who owns and regulates Troy City Pws?

EPA lists Troy City Pws as owned by a local government. The NY state drinking water program is its primacy agency, the regulator with primary enforcement responsibility for the system under the Safe Drinking Water Act. 24 of the 146 active systems in Rensselaer County (16%) are also owned by a local government.

Does Troy City Pws have drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2022. The violations listed here began between January 2014 and July 2022. By type: 9 monitoring and reporting, 2 contaminant level above the legal limit and 1 required treatment not met. The contaminant or rule involved most often is Lead and Copper Rule (9 of them). 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
2022-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2021-10-01	Required treatment not metPublic Education · code 65	Lead and Copper Rulecode 5000	Yes	Resolved
2021-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2018-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2018-01-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2018-01-01	Monitoring and reportingMonitoring and Reporting (DBP) · code 27	Total trihalomethanes (TTHM)code 2950	No	Resolved
2017-10-01	Contaminant level above the legal limitMaximum Contaminant Level Violation, Average · code 02	Total trihalomethanes (TTHM)code 2950	Yes	Resolved
2017-10-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2015-07-01	Monitoring and reportingInitial, Follow-up, or Routine Source Water M/R · code 56	Lead and Copper Rulecode 5000	No	Resolved
2015-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2014-07-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	No	Resolved
2014-01-01	Monitoring and reportingFollow-up Or Routine LCR Tap M/R · code 52	Lead and Copper Rulecode 5000	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.

Troy City Pws: frequently asked questions

Who runs Troy City Pws?

Troy City Pws (PWSID NY4100050) is a community water system owned by a local government. It is regulated by the NY state drinking water program.

How many people does Troy City Pws serve?

Troy City Pws reports serving 51,401 people through 13,269 service connections in Rensselaer County, New York.

Where does Troy City Pws 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 Troy City Pws have any drinking water violations?

Of the 12 most recent violations in EPA's records, 3 are health-based, and the most recent began in July 2022. 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 Troy City Pws' 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, 3 are health-based, and the most recent began in July 2022. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.

Where can I find Troy City Pws' water quality report?

As a community water system, Troy City Pws 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 Rensselaer County

Water system	County	Population served	Type	Source
East Greenbush General W.D.	Rensselaer	15,843	Community	Purchased surface water
North Greenbush Consolidated District	Rensselaer	10,226	Community	Purchased surface water
Rensselaer City Pws	Rensselaer	9,300	Community	Purchased surface water
Brunswick Consolidated Water District	Rensselaer	7,050	Community	Purchased surface water
Hoosick Falls (V) Pws	Rensselaer	4,925	Community	Groundwater
Grafton Lakes State Park	Rensselaer	2,500	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, “Troy City Pws, PWSID NY4100050, New York”, https://aquacensus.com/water-systems/new-york/troy-city-pws-ny4100050 (data as of October 1, 2026).