WaterVerge

Is Robinson, IL Tap Water Safe to Drink?

Graded A- — but PFOS was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

15K residents served 2 water systems PWSID: IL0335030
Overall Score
87.5 / 100
Violations
2 active
Last Updated
May 2026
Source
Groundwater
#264 of 891 in Illinois Top 25% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
87.5/100
waterverge.com
A- 87.5/100

Robinson, IL — Water Quality Report

Robinson's drinking water received a grade of A- (87.5 out of 100), indicating good water quality. The city's 2 water systems serve approximately 14,734 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 2 PFAS compounds, with levels exceeding EPA maximum contaminant levels in the water supply.

The system has 18 violations on record, including 0 health-based violations. 2 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Robinson's water

Robinson ranks #264 out of 891 cities in Illinois for water quality, placing it mid-range in the state.

Robinson relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

Of particular concern: PFAS "forever chemical" levels exceed the 2024 EPA maximum contaminant levels. These synthetic compounds don't break down naturally and require specialized filtration such as reverse osmosis or granular activated carbon.

Hexavalent chromium (chromium-6) was detected at 0.05 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.

Quality Breakdown

Water quality score

See methodology →
87.5 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
40.4/45
B
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
14.1/20
C
2 PFAS compounds detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Robinson, IL water safe to drink?

Use Caution

Robinson's tap water meets most EPA standards but has areas that warrant attention. With a grade of A- (87.5/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 2 water systems serve approximately 14,734 residents using groundwater (wells).

2
Active Violations
0.0 ppb
Lead (90th %ile)
2 compounds
PFAS Detected
3 events
Disaster History

Recent water quality updates for Robinson

A timeline of significant water quality events, violations, and data updates.

PFAS
2 PFAS "forever chemical" compounds detected

PFAS levels exceed EPA maximum contaminant levels. Reverse osmosis or activated carbon filtration recommended.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Robinson's water quality assessment. Grade: A- (87.5/100).

Violation
2 drinking water violations recorded

Contaminants: TTHM, Total Haloacetic Acids (HAA5).

Violation
2 drinking water violations recorded

Contaminants: Chlorine, Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4116). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Robinson's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (2 compounds) Exceeds Limit
Detected: Highest: PFOS at 0.0046 µg/L Limit: 0.004 µg/L (EPA MCL)

PFAS "forever chemicals" exceed EPA maximum contaminant levels. Reverse osmosis or granular activated carbon filtration strongly recommended.

PFAS "forever chemicals" detected

UCMR 5 testing found 2 PFAS compounds in Robinson's water supply. PFAS are synthetic chemicals that persist indefinitely in the environment and the human body.

Compound Level EPA MCL Status
PFOS 0.0046 µg/L 0.004 µg/L Over MCL
PFHxS 0.0040 µg/L 0.004 µg/L Within Limit

Violation history

Robinson's water system has 18 total violations on record, including 0 health-based violations. 2 remain unresolved. 4 violations were issued in the last 5 years.

MRMON
Most recent violations:
Jan 2025 TTHM Resolved
Jan 2025 Total Haloacetic Acids (HAA5) Resolved
Jan 2024 Chlorine Resolved
Jan 2024 Revised Total Coliform Rule Resolved
Dec 2020 Lead and Copper Rule Open

Flood & environmental risk

Crawford County has experienced 3 federally declared disasters since 1985. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4116
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230
SEVERE STORMS & FLOODING
Flood FEMA DR-735

Where does Robinson's water come from?

Robinson's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 14,734 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Robinson residents can do

Install a water filter

Recommended: Reverse osmosis system. This addresses the specific contaminants found in Robinson's water.

Request your utility's CCR

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.

Monitor alerts during storms

Robinson's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
PFOS
PFAS / Forever Chemical
Over MCL
0.0046 µg/L
EPA MCL: 0.004 µg/L · +15% over limit
Exceeds MCL
PFHxS
PFAS / Forever Chemical
Near MCL
0.0040 µg/L
EPA MCL: 0.004 µg/L · +0% over limit
Detected
HAA5 (Disinfection Byproducts)
Disinfection Byproduct
Safe
5.2 µg/L
EPA MCL: 60 µg/L · 9% of limit
Within LimitUCMR 4 DataHAA6Br: 10.1 µg/LHAA9: 10.6 µg/L
Chromium-6 (Hexavalent Chromium)
Inorganic
Detected
0.05 µg/L
CA MCL (no federal MCL): 10 µg/L · 1% of limit
DetectedUCMR 3 Data
Strontium
Inorganic
Detected
135.0 µg/L
EPA Health Ref Level: 1,500 µg/L · 9% of limit
DetectedUCMR 3 Data
Manganese
Inorganic
Elevated
30.3 µg/L
EPA Secondary MCL: 50 µg/L · 61% of limit
DetectedUCMR 4 Data
Vanadium
Inorganic
Detected
0.28 µg/L
EPA Short-term HA: 21 µg/L · 1% of limit
DetectedUCMR 3 Data
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
2
Detected
1
Exceed EPA MCL
1.15
Hazard Index
PFOS max: 0.0046 µg/L
Compliance Record

Violation summary

18
Total violations
0
Health-based
2
Active / unresolved
Jan 2025
Most recent violation
Compliance Record

Violations & advisories

18 Total
2 Active
0 Health-based
16 Resolved
Violations by category
Total Coliform Rule
8
Stage 1 Disinfectants and Disinfection Byproducts Rule
4
Stage 2 Disinfectants and Disinfection Byproducts Rule
2
Revised Total Coliform Rule
1
Lead and Copper Rule
1
Dec 2020 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Jan 2025 Resolved
TTHM
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jan 2025 Resolved
Total Haloacetic Acids (HAA5)
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2025
Jan 2024 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 2024
Jan 2024 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Jan 2024
Oct 2010 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2010
Jun 2009 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2009
Apr 2009 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2009
Apr 2006 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2006
Apr 2006 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Apr 2006
Jul 1998 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jul 1998
Mar 1996 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Mar 1996
Feb 1996 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1996
Jun 1995 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1995
Jun 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1994
Feb 1994 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1994
Jun 1977 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 1981
Industrial pollution

Top industrial polluters within 10 miles of Robinson

Industrial polluters nearby

Reported releases to surface water by facilities near Robinson, ranked by pounds discharged annually.

Total reported releases to surface water: 303,555 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
MARATHON PETROLEUM CO LP ILLINOIS REFINING DIV
Petroleum · MARATHON PETROLEUM CORP
ROBINSON, IL62454
Nitrate compounds (water dissociable; reportable only when in aqueous solution)303,5540.5 mi
RAIN CII CARBON LLC
Petroleum · RAIN CII CARBON LLC
ROBINSON, IL62454
Vanadium compounds11.3 mi
LINCOLNLAND AGRI-ENERGY LLC
Chemicals · NA
PALESTINE, IL62451
5.7 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Flood & disaster history

3
Declared disasters
May 2013
Most recent
Flood
Most common type

Crawford County has experienced 3 federally declared disasters since 1985. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

May 2013
SEVERE STORMS, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4116
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230
Mar 1985
SEVERE STORMS & FLOODING
Flood FEMA #735

Recommended water filters

Based on contaminants detected in Robinson's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
PFAS compounds exceed EPA maximum contaminant levels

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium ND HI µg/L PFAS Not Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS 0.004 HI µg/L PFAS Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS 0.005 0.004 µg/L PFAS Over MCL
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 8.0 ppb from 1992 (8.0 ppb) to 2025 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
14,734
Water Systems
2
Water Source

Where Robinson's water comes from

Groundwater

Robinson's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 14,734 people through 2 water systems.

Infrastructure

Water systems serving Robinson

System Name PWSID Population Source
ROBINSON-PALESTINE WATER COMMISSION IL0335030 11,331 GW
HARDINVILLE WATER COMPANY IL0330020 3,403 GW
Regional Comparison

How Robinson compares

Full Illinois rankings →

Robinson's score of 87.5/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.

Robinson (this city)
87.5
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Robinson, IL

Wikipedia →

Robinson is a city in and the county seat of Crawford County, Illinois, United States. The population was 7,150 at the 2020 census, down from 7,713 at the 2010 census.

Economic Profile
$57,500
Median Income
$100,254
Median Home Value
$809/mo
Median Rent
5.1%
Unemployment
Community
39.9
Median Age
583
People / sq mi
22.7%
College Educated
67.5%
Homeownership
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Frequently asked questions

Is Robinson, IL tap water safe to drink?

Robinson's water quality earned a grade of A- (87.5/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #264 out of 891 cities tested in Illinois.

What contaminants are in Robinson's water?

Lead was measured at 0.0 ppb (90th percentile). 2 PFAS compounds were detected. 18 violations are on record.

How is Robinson'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 Robinson?

PFAS compounds exceed EPA limits — a reverse osmosis or activated carbon filter is recommended.

Where does Robinson's water come from?

Robinson's water is sourced from Groundwater. The city has 2 water systems serving approximately 14,734 residents.

Is Robinson's groundwater at risk of contamination?

Robinson uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 18 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does Robinson's water compare to other cities?

Robinson ranks #264 out of 891 cities in Illinois (better than 70% of state cities) and #3988 out of 15744 cities nationally (75th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.