WESTCHESTER JOINT WATER WORKS
PWSID: NY5903435 · Mamaroneck, NY · Serves 59,629 people
According to EPA Safe Drinking Water Information System (SDWIS), WESTCHESTER JOINT WATER WORKS (PWSID NY5903435) in Mamaroneck, NY is listed as a CWS water system covering about 59,629 people. The same extract lists 5 health-based violation records spanning 1993-2019. Those 5 health-based rows for WESTCHESTER JOINT WATER WORKS cover contaminants such as Total Haloacetic Acids (HAA5), Long Term 2 Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule; they remain historical EPA registry entries, not a current compliance or drinkability score.
WESTCHESTER JOINT WATER WORKS has 5 health-based violation records in this historical extract. Monitoring and reporting records are not included.
PlainEnviro's health-based SDWIS extract covers monitoring and reporting violations only -- it does not include unresolved enforcement actions in progress or corrective steps a utility has taken since the extract date. 3 distinct EPA contaminant codes appear in this system's record, including Total Haloacetic Acids (HAA5), Long Term 2 Enhanced Surface Water Treatment Rule, Surface Water Treatment Rule. Recorded violations span 1993–2019. Day-to-day primacy enforcement for this system runs through the New York drinking-water program, not EPA directly.
A historical health-based record does not necessarily describe current water quality or compliance. The most authoritative current source is the utility's annual Consumer Confidence Report. For enforcement history and corrective-action orders, consult EPA ECHO and the New York state drinking-water program's public portal.
System Details
- EPA ID (PWSID)
- NY5903435
- System Type
- CWS
- Water Source
- Surface Water
- Location
- Mamaroneck, NY
- Population Served
- 59,629
- Health Violations
- Yes (5)
What contaminants are in this water system?
| Contaminant | Violations | Health-Based |
|---|---|---|
| Total Haloacetic Acids (HAA5) | 3 | 3 |
| Long Term 2 Enhanced Surface Water Treatment Rule | 1 | 1 |
| Surface Water Treatment Rule | 1 | 1 |
Violation History (5)
| Contaminant | Health | Date |
|---|---|---|
| Total Haloacetic Acids (HAA5) | Yes | Jul 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Apr 1, 2019 |
| Total Haloacetic Acids (HAA5) | Yes | Jan 1, 2019 |
| Long Term 2 Enhanced Surface Water Treatment Rule | Yes | May 1, 2015 |
| Surface Water Treatment Rule | Yes | Jun 30, 1993 |
Frequently Asked Questions
What does EPA SDWIS list for WESTCHESTER JOINT WATER WORKS?
How many people does WESTCHESTER JOINT WATER WORKS serve?
What violations does WESTCHESTER JOINT WATER WORKS have?
What contaminants have been found in WESTCHESTER JOINT WATER WORKS water?
Compare beyond New York
Nationwide peers by violations & population served
Cross-state SDWIS systems nearest WESTCHESTER JOINT WATER WORKS on cumulative violation count (5) and EPA-reported population served (59,629). Violation-count peers include Jemez Pueblo, Acoma Main, OMAHA TRIBE PWS. Population peers include EASTSIDE UTILITY DISTRICT, DUBUQUE WATER WORKS, ST. CLAIR SHORES, CITY OF.
Similar violation count
Nearest cross-state community systems (500+ served) by SDWIS violations on record.
Similar population served
Nearest cross-state systems by EPA SDWIS population_served (same 500+ gate).
Nearby Water Systems
Explore More
About This Data
WESTCHESTER JOINT WATER WORKS (NY5903435) is drawn from EPA SDWIS. Nearby county systems in this extract include NEW YORK CITY SYSTEM; YONKERS CITY; GREENBURGH CONSOLIDATED WD #1; MOUNT VERNON WATER DEPARTMENT. Health-based rows (5 MCL/TT) are historical registry state, not a current drinkability score.
Source: U.S. Environmental Protection Agency, SDWIS Federal Reporting Services
Read our methodology - how this data is sourced, computed, and verified.