A86/100
Robinson Tap Water Quality: Is It Safe to Drink? (2026 Report)
Serving 14,734 residents · Illinois
What's In Robinson's Tap Water?
66
Contaminants Tested
1
Exceed EPA Limits
0
Above EPA Goals
1 contaminant above EPA health goals
| Contaminant | Detected | Limit (MCL) | Status |
|---|---|---|---|
PFOS | 0.005 µg/L | 0.004 µg/L | Over Limit |
EPA Violation History
4
Violations (last 5yr)
2
Unresolved
0
Health-Related
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Unresolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
TIER 3Resolved
Failed Level 2 Assessment under Revised Total Coliform Rule
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – March 5, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved
Monitoring Violation
This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.
When: January 1, 2024 – January 31, 2024Rule: Total Coliform RuleEnforcement: 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
HARDINVILLE WATER COMPANY
Population Served
3,403
Water Source
Groundwater
System ID
IL0330020
ROBINSON-PALESTINE WATER COMMISSION
Population Served
11,331
Water Source
Groundwater
System ID
IL0335030
Frequently Asked Questions About Robinson Water
Is Robinson tap water safe to drink?
Robinson, Illinois tap water receives a grade of A (86/100), which is considered excellent. Out of 66 contaminants tested, 1 exceed EPA maximum contaminant levels (MCLs) and 2 exceed health guidelines (MCLGs). While the water meets federal standards, some residents may still choose to use a filter for additional peace of mind.
What contaminants are in Robinson's water?
Of the 66 contaminants tested in Robinson's water supply, the most notable include PFOS, Lead (90th percentile). 1 contaminant(s) exceed EPA legal limits (MCLs). 2 contaminant(s) exceed EPA health goals (MCLGs), which are non-enforceable targets set at levels with no known health risk.
Does Robinson have any water quality violations?
Yes, Robinson has 17 EPA violation(s) on record, with the most recent in 2025. Violation types include MR, MON. None of these are classified as health-based violations.
Do I need a water filter in Robinson?
Based on EPA data, using a water filter in Robinson is recommended. 1 contaminant(s) exceed legal limits. An NSF-certified filter — such as a reverse osmosis or activated carbon system — can effectively reduce many common contaminants. Choose a filter certified to remove the specific contaminants found in your area.
Where does Robinson's tap water come from?
Robinson's drinking water is sourced from groundwater and supplied by HARDINVILLE WATER COMPANY and 1 other water system(s). The system serves approximately 14,734 people. Groundwater is pumped from underground aquifers, which often provides natural filtration.
How often is Robinson'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. Robinson'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 Robinson's water compare to other cities in Illinois?
Robinson's water quality score of 86/100 earns a grade of A, which is considered excellent. This places Robinson among the better-performing water systems in Illinois. Visit our Illinois state page to see how all cities in the state compare.
What should I do if I'm concerned about Robinson's water quality?
If you have concerns about Robinson'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 (HARDINVILLE WATER COMPANY) 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.