Is Louisville (T), NY Tap Water Safe to Drink?
Graded A-, with 2 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
85.8/100
waterverge.com Louisville (T), NY — Water Quality Report
Louisville (T)'s drinking water received a grade of A- (85.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 3,235 residents using surface water.
Lead levels were measured at 1.1 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 2 violations on record, including 0 health-based violations. 2 remain unresolved.
What to know about Louisville (T)'s water
Louisville (T) ranks #429 out of 855 cities in New York for water quality, placing it below average in the state.
The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.
As a small community water system, Louisville (T) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Louisville (T), NY water safe to drink?
Louisville (T)'s tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (85.8/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 3,235 residents using surface water (rivers, lakes, or reservoirs).
Recent water quality updates for Louisville (T)
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Louisville (T)'s water quality assessment. Grade: A- (85.8/100).
Contaminants: Consumer Confidence Rule.
Contaminants: Consumer Confidence Rule.
Key contaminant findings
Based on the most recent EPA sampling data for Louisville (T)'s water supply.
Well within EPA limits.
Violation history
Louisville (T)'s water system has 2 total violations on record, including 0 health-based violations. 2 remain unresolved.
Where does Louisville (T)'s water come from?
Louisville (T)'s drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 3,235 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Raquette River (river), St. Regis River (river).
What Louisville (T) residents can do
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 1.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Louisville (T) compares by contaminant
Explore where Louisville (T) ranks among all New York cities for specific contaminants.
Water source & infrastructure
Where Louisville (T)'s water comes from
Louisville (T)'s drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.
Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.
These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.
The system is operated by local government ownership and serves approximately 3,235 people through 1 water system.
Water bodies near Louisville (T)
Louisville (T) is located near 2 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.
Water systems serving Louisville (T)
| System Name | PWSID | Population | Source |
|---|---|---|---|
| EAST LOUISVILLE WATER DISTRICT | NY4430133 | 3,235 | SW |
How Louisville (T) compares
Full New York rankings →Louisville (T)'s score of 85.8/100 is above the average of 74/100 among major New York cities. It outscores 9 of 10 nearby cities.
Nearby cities
View New York rankings →About Louisville (T), NY
Wikipedia →Massena is a town in St. Lawrence County, New York, United States. Massena is along the county's northern border, just south of the St. Lawrence River and the Three Nations Crossing of the Canada–United States border. The population was 12,433 at the 2020 census. The town of Massena contains a village also named Massena.
Learn more about your water
Guides and resources related to Louisville (T)'s water quality findings.
Explore water quality across St. Lawrence
Frequently asked questions
Is Louisville (T), NY tap water safe to drink?
Louisville (T)'s water quality earned a grade of A- (85.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #429 out of 855 cities tested in New York.
What contaminants are in Louisville (T)'s water?
Lead was measured at 1.1 ppb (90th percentile). 2 violations are on record.
How is Louisville (T)'s water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Louisville (T)?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Louisville (T)'s water come from?
Louisville (T)'s water is sourced from Surface water. The city has 1 water system serving approximately 3,235 residents.
How does Louisville (T)'s water compare to other cities?
Louisville (T) ranks #429 out of 855 cities in New York (better than 50% of state cities) and #5097 out of 15744 cities nationally (68th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Louisville (T)'s small water system affect quality?
Louisville (T)'s system serves approximately 3,235 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 2 violations on record.