B75/100
Sheridan Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 1,670 residents · Illinois
What's In Sheridan's Tap Water?
1
Contaminants Tested
0
Exceed EPA Limits
0
Above EPA Goals
EPA Violation History
1
Violation (last 5yr)
1
Unresolved
0
Health-Related
TIER 3Unresolved
Surface water treatment technique failure
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
SHERIDAN CORRECTIONAL CENTER
Population Served
1,670
Water Source
Groundwater
System ID
IL0995840
Frequently Asked Questions About Sheridan Water
Is Sheridan tap water safe to drink?
Sheridan, Illinois tap water receives a grade of B (75/100), 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 Sheridan's water?
1 contaminants were tested in Sheridan's water supply. No contaminants exceed EPA legal limits (MCLs) or health goals (MCLGs), which is a positive indicator of water quality.
Does Sheridan have any water quality violations?
Yes, Sheridan has 25 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MR. None of these are classified as health-based violations.
Do I need a water filter in Sheridan?
Sheridan 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 Sheridan's tap water come from?
Sheridan's drinking water is sourced from groundwater and supplied by SHERIDAN CORRECTIONAL CENTER. The system serves approximately 1,670 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Sheridan'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. Sheridan'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 Sheridan's water compare to other cities in Illinois?
Sheridan's water quality score of 75/100 earns a grade of B, which is considered good. This is an above-average score compared to many cities nationwide. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Sheridan's water quality?
If you have concerns about Sheridan'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 (SHERIDAN CORRECTIONAL CENTER) 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.