B70/100
Clay City Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,152 residents · Indiana
What's In Clay City's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
6
Violations (last 5yr)
2
Unresolved
1
Health-Related
TIER 3Unresolved
Reporting Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Unresolved
Surface water treatment technique failure
TIER 3Resolved
Reporting violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: October 17, 2024 – January 24, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 2Resolved
Treatment technique violation
When: October 17, 2024 – January 24, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2024 – August 2, 2024Enforcement: Resolving — corrective action underway
TIER 3Resolved
Surface water treatment technique failure
When: July 1, 2023 – October 11, 2024Enforcement: Resolving — corrective action underway
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
Water Utility Details
CLAY CITY WATER WORKS
Population Served
1,152
Water Source
Groundwater
System ID
IN5211004
Frequently Asked Questions About Clay City Water
Is Clay City tap water safe to drink?
Clay City, Indiana tap water receives a grade of B (70/100), which is considered good. Out of 1 contaminants tested, none exceed EPA maximum contaminant levels (MCLs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Clay City's water?
1 contaminants were tested in Clay City's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Clay City have any water quality violations?
Yes, Clay City has 26 EPA violation(s) on record, with the most recent in 2025. Violation types include RPT, Other, TT. 1 of these are health-based violations, which are the most serious category.
Do I need a water filter in Clay City?
Clay City water meets EPA standards, so a filter is not strictly necessary. However, some residents prefer the added security of a water filter. EPA health goals (MCLGs) are stricter than legal limits and are set at levels with zero expected health risk. All contaminants are within health goals.
Where does Clay City's tap water come from?
Clay City's drinking water is sourced from groundwater and supplied by CLAY CITY WATER WORKS. The system serves approximately 1,152 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Clay City's water tested?
Under the Safe Drinking Water Act (SDWA), water utilities are required to regularly test for over 90 contaminants. Testing frequency varies by contaminant — some are tested monthly, others quarterly or annually. Clay City's water systems must report results to the EPA and publish an annual Consumer Confidence Report (CCR). The data on this page reflects the latest available EPA testing data.
How does Clay City's water compare to other cities in Indiana?
Clay City's water quality score of 70/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Indiana state page to see how all cities in the state compare.
What should I do if I'm concerned about Clay City's water quality?
If you have concerns about Clay City's tap water, consider these steps: (1) Request your utility's annual Consumer Confidence Report for detailed local data. (2) Get your water independently tested through a state-certified laboratory. (3) Consider an NSF-certified water filter rated for the contaminants found in your area. (4) Contact your water utility (CLAY CITY WATER WORKS) with specific questions. (5) Report water quality issues to your state drinking water program or the EPA Safe Drinking Water Hotline at 800-426-4791.