F0/100
EMERALD GREEN LAKE LOUISE MARIE WC — Water Quality Report 2026
Serving 2,400 people · New York
Water Source
Surface Water
County
—
System ID
NY5203346
Violations
185
Contaminant Test Results
2 contaminants above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
Copper (90th percentile) | 3.23 mg/L | 1.30 mg/L | Over Limit |
Lead (90th percentile) | 0.003 mg/L | 0.015 mg/L | Above Goal |
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: November 1, 2022 – November 30, 2022Rule: Total Coliform RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
Understanding violation severity
Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.
Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly
Frequently Asked Questions About EMERALD GREEN LAKE LOUISE MARIE WC
Is EMERALD GREEN LAKE LOUISE MARIE WC water safe to drink?
EMERALD GREEN LAKE LOUISE MARIE WC water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 185 violation(s) are on record. Customers may want to consider using a water filter.
What contaminants has EMERALD GREEN LAKE LOUISE MARIE WC detected?
2 contaminants were tested in EMERALD GREEN LAKE LOUISE MARIE WC's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).
Does EMERALD GREEN LAKE LOUISE MARIE WC have any EPA violations?
Yes, EMERALD GREEN LAKE LOUISE MARIE WC has 185 EPA violation(s) on record, with the most recent in 2022. Violation types include MON, MR, Other.
How many people does EMERALD GREEN LAKE LOUISE MARIE WC serve?
EMERALD GREEN LAKE LOUISE MARIE WC serves approximately 2,400 people, New York. The system provides water to 1 community: Thompson (T).
What type of water does EMERALD GREEN LAKE LOUISE MARIE WC provide?
EMERALD GREEN LAKE LOUISE MARIE WC sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is NY5203346.
How does EMERALD GREEN LAKE LOUISE MARIE WC compare to other utilities in New York?
EMERALD GREEN LAKE LOUISE MARIE WC scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our New York state page for a full comparison of water systems.