Louisville, KY 40255

1 water system140 residents

Poor water quality - filtration recommended

D

Score: 27/100

Graded on EPA violations, contaminants, severity, compliance, and enforcement history. See methodology.

Data updated June 2026 • Sources: EPA ECHO and EPA Envirofacts

9

Contaminants Detected

142

Violations on Record

96

Health-Based Violations

0

Recent Violations

Grade Breakdown

Contaminant Count16 / 25
Violation History7 / 25
Contaminant Severity0 / 25
System Compliance0 / 15
Enforcement History0 / 10
Total Score27%

27 / 100 points

Recommended Water Filters

  • Point-of-Use Carbon Filter (NSF-certified for lead)
  • Reverse Osmosis or Ion Exchange Filter
  • Ultraviolet (UV) Purification
  • Whole Home Carbon Filter System
Compare filter types in our Filter Guide →

Consult a water quality specialist for personalized recommendations.

Louisville vs KY & National Average

Detected Contaminants

9 contaminants detected across water systems serving this ZIP code

ContaminantCategory
NitrateAgricultural
Nitrate-NitriteAgricultural
Lead and Copper RuleHeavy Metal
LEAD AND COPPER RULE REVISIONSHeavy Metal
Coliform (TCR)Microorganism
Revised Total Coliform RuleMicroorganism
Consumer Confidence RuleOther
Gross Alpha, Excl. Radon and URadiological
TrichloroethyleneVolatile Organic

Water System Information

Systems Serving This ZIP:
GARDEN CITY MOBILE HOME PARK
Population Served:
140
Systems With Violations:
1 of 1
Major Violations:
14
Enforcement Actions:
140

Frequently Asked Questions

What does the grade mean?

Our A–F grade ranks this ZIP code's water quality against every other analyzed ZIP in the country, based on EPA data. A = among the best, F = among the most troubled.

Is my tap water safe to drink?

Water systems regulated by the EPA must comply with Safe Drinking Water Act standards. However, if you're concerned about water quality, consider a water filter appropriate for your contaminants.

How often is the data updated?

We update our data quarterly with the latest EPA ECHO and Envirofacts data. Historical violations are tracked to identify patterns.

What filters do you recommend?

Filter recommendations are based on detected contaminants in your area. See our Filter Guide for detailed information about different filter types.