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EMERALD GREEN LAKE LOUISE MARIE WC

PWS ID: NY5203346 · ROCK HILL, New York 12775

EMERALD GREEN LAKE LOUISE MARIE WC serves 2,400 people in ROCK HILL, New York using Surface Water water sources. It has 454 recorded EPA violations, including 0 health-based violations. No PFAS contamination was detected in UCMR5 testing.

Water Quality Snapshot: EMERALD GREEN LAKE LOUISE MARIE WC

EMERALD GREEN LAKE LOUISE MARIE WC is a private-owned community water system that delivers drinking water to 2,400 residents in ROCK HILL, New York (Sullivan County) through 842 service connections. Its water is drawn from surface water sources. EPA's Safe Drinking Water Information System records 454 total violations for this system , of which 0 (0%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. A further 417 monitoring and reporting violations are on file. The most recent violation on record dates to 2022.

The most frequently cited contaminant at this system is Lead and Copper Rule, recorded in 21 violations (MR). This system has not yet been sampled under EPA's UCMR5 PFAS monitoring program, so no PFAS detection data is available here.

Across New York, EPA tracks 8,098 public water systems serving 19,294,951 people, with 552,003 cumulative violations and 26,817 health-based violations on record. About 94% of systems in the state carry at least one violation, and state-wide the average per system is 68.2 violations. EMERALD GREEN LAKE LOUISE MARIE WC's 454 violations sit above the New York average. Statewide, 129 of 332 UCMR5-tested systems have reported PFAS detections (38.9%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

Population Served
2,400
Total Violations
454
Health-Based Violations
0
Water Source
Surface Water

System Details

System Type
Community
Owner Type
Private
Connections
842
County
Sullivan
School/Daycare
No
MCL Violations
0
Monitoring Violations
417
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Lead and Copper Rule MR 21 2008
Combined Radium (-226 and -228) MR 20 2008
Radium-226 MR 20 2008
Radium-228 MR 20 2008
Combined Uranium MR 20 2008
Barium MR 16 2008
Cadmium MR 16 2008
Fluoride MR 16 2008
Mercury MR 16 2008
Nickel MR 16 2008
Antimony, Total MR 16 2008
Beryllium, Total MR 16 2008
Thallium, Total MR 16 2008
Selenium MR 16 2008
Chromium MR 16 2008
CYANIDE MR 16 2008
Arsenic MR 16 2008
Nitrate MR 14 2019
Revised Total Coliform Rule MON 14 2022
Coliform (TCR) MR 14 2015
TTHM MR 12 2007
Total Haloacetic Acids (HAA5) MR 12 2007
Consumer Confidence Rule Other 4 2015
Endrin MR 2 2007
BHC-GAMMA MR 2 2007
Toxaphene MR 2 2007
Dalapon MR 2 2007
OXAMYL MR 2 2007
Simazine MR 2 2007
Di(2-ethylhexyl) phthalate MR 2 2007

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for EMERALD GREEN LAKE LOUISE MARIE WC.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID NY5203346 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

New York Drinking Water Authority

New York State Department of Health — Public Water Systems is the primacy agency that licenses and inspects EMERALD GREEN LAKE LOUISE MARIE WC under EPA-delegated authority.

Open NY regulator portal

Source: New York State Department of Health — Public Water Systems

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2022 Revised Total Coliform Rule MON 14 SDWIS / NY5203346 / 8000
2020 CARBON, TOTAL MR 2 SDWIS / NY5203346 / 2920
2019 Nitrate MR 14 SDWIS / NY5203346 / 1040
2015 Coliform (TCR) MR 14 SDWIS / NY5203346 / 3100
2015 Consumer Confidence Rule Other 4 SDWIS / NY5203346 / 7000
2008 Lead and Copper Rule MR 21 SDWIS / NY5203346 / 5000
2008 Combined Radium (-226 and -228) MR 20 SDWIS / NY5203346 / 4010
2008 Radium-226 MR 20 SDWIS / NY5203346 / 4020
2008 Radium-228 MR 20 SDWIS / NY5203346 / 4030
2008 Combined Uranium MR 20 SDWIS / NY5203346 / 4006
2008 Barium MR 16 SDWIS / NY5203346 / 1010
2008 Cadmium MR 16 SDWIS / NY5203346 / 1015
2008 Fluoride MR 16 SDWIS / NY5203346 / 1025
2008 Mercury MR 16 SDWIS / NY5203346 / 1035
2008 Nickel MR 16 SDWIS / NY5203346 / 1036

How EMERALD GREEN LAKE LOUISE MARIE WC Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric EMERALD GREEN LAKE LOUISE MARIE WC New York avg Federal benchmark
Total violations 454 68.2 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 0 3.3 Indicates a contaminant exceeded a federal MCL
PFAS detection None 38.9% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 2,400 2,383 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 8,098 regulated public water systems in New York.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is EMERALD GREEN LAKE LOUISE MARIE WC water safe to drink? ▼
EMERALD GREEN LAKE LOUISE MARIE WC (PWS ID: NY5203346) has 454 recorded violations in the EPA SDWIS database. No PFAS contamination was detected in UCMR5 testing. This system serves 2,400 people using Surface Water sources.
How many people does EMERALD GREEN LAKE LOUISE MARIE WC serve? ▼
EMERALD GREEN LAKE LOUISE MARIE WC serves 2,400 people in ROCK HILL, New York. It is a Private-owned system using Surface Water water sources with 842 service connections.
What type of violations does EMERALD GREEN LAKE LOUISE MARIE WC have? ▼
EMERALD GREEN LAKE LOUISE MARIE WC has 454 total violations: 0 health-based violations (MCL exceedances or treatment failures), 417 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in EMERALD GREEN LAKE LOUISE MARIE WC water? ▼
No PFAS testing data is available for EMERALD GREEN LAKE LOUISE MARIE WC under the EPA's UCMR5 monitoring program.
What water source does EMERALD GREEN LAKE LOUISE MARIE WC use? ▼
EMERALD GREEN LAKE LOUISE MARIE WC uses Surface Water as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

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Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

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