Public water system · NY5530041
ActiveMalden Water District
At a glance
Malden Water District (PWSID NY5530041) is an active community water system in Ulster County, New York. It reports serving 460 people through 202 service connections. Its primary water source is purchased surface water, and EPA lists it as owned by a local government. EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2024.
Dataset updated . Source: EPA SDWIS/ECHO public records.
Population served
460
Service connections
202
Primary source
SWP
Purchased surface water
System type
CWS
Community water system
System record
How does Malden Water District compare with other water systems in Ulster County?
By EPA's size categories, Malden Water District is a very small system (500 people or fewer). Ulster County has 446 active public water systems. Its population served is about 54% above the county average of 298 people per system, and accounts for 0.3% of the 133,020 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 Malden Water District 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. New York has 2,281 active community water systems, 28% of the state's 8,167 active systems. Purchased surface water means the system buys surface water from another public water system rather than drawing its own. 399 New York systems (4.9%) list purchased surface water as their primary source.
Who owns and regulates Malden Water District?
EPA lists Malden Water District 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. 48 of the 446 active systems in Ulster County (11%) are also owned by a local government.
Does Malden Water District have drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2024. The violations listed here began between January 2009 and January 2024. By type: 6 monitoring and reporting and 2 public notice, recordkeeping or other. The contaminant or rule involved most often is Haloacetic acids (HAA5) (3 of them). EPA lists 8 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 |
|---|---|---|---|---|
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2024-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2017-07-01 | Public notice, recordkeeping or otherConsumer Confidence Report Complete Failure to Report · code 71 | Consumer Confidence Rulecode 7000 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
| 2014-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2012-09-01 | Public notice, recordkeeping or otherOperations Report · code 10 | Not reported | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Haloacetic acids (HAA5)code 2456 | No | Resolved |
| 2009-01-01 | Monitoring and reportingMonitoring and Reporting (DBP) · code 27 | Total trihalomethanes (TTHM)code 2950 | No | Resolved |
All 8 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.
Malden Water District: frequently asked questions
Who runs Malden Water District?
Malden Water District (PWSID NY5530041) is a community water system owned by a local government. It is regulated by the NY state drinking water program.
How many people does Malden Water District serve?
Malden Water District reports serving 460 people through 202 service connections in Ulster County, New York.
Where does Malden Water District get its water?
EPA SDWIS lists this system's primary water source as purchased surface water. Purchased surface water means the system buys surface water from another public water system rather than drawing its own.
Does Malden Water District have any drinking water violations?
EPA's records list 8 violations for this system; none is health-based, and the most recent began in January 2024. 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 Malden Water District'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 8 violations for this system; none is health-based, and the most recent began in January 2024. For current results, consult the system's annual water quality report, EPA ECHO, or the NY state drinking water program.
Where can I find Malden Water District's water quality report?
As a community water system, Malden Water District 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 Ulster County
| Water system | County | Population served | Type | Source |
|---|---|---|---|---|
| Kingston (City) Water District | Ulster | 24,000 | Community | Surface water |
| New Paltz (Village) Water Dist | Ulster | 7,523 | Community | Surface water |
| Ulster Water District | Ulster | 5,500 | Community | Purchased surface water |
| Port Ewen Water District | Ulster | 4,500 | Community | Surface water |
| Ellenville (Village) Water Dis | Ulster | 4,300 | Community | Groundwater |
| Saugerties (Village) Water Dis | Ulster | 4,200 | Community | Surface water |
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, “Malden Water District, PWSID NY5530041, New York”, https://aquacensus.com/water-systems/new-york/malden-water-district-ny5530041 (data as of October 1, 2026).