WaterVerge

Is Gorham, IL Tap Water Safe to Drink?

Graded A-, with 3 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

1K residents served 1 water system PWSID: IL0770350
Overall Score
85.6 / 100
Violations
3 active
Last Updated
May 2026
Source
Purchased surface water
#365 of 891 in Illinois Top 33% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
85.6/100
waterverge.com
A- 85.6/100

Gorham, IL — Water Quality Report

Gorham's drinking water received a grade of A- (85.6 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,143 residents using purchased surface water.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 7 violations on record, including 1 health-based violation. 3 remain unresolved.

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

What to know about Gorham's water

Gorham ranks #365 out of 891 cities in Illinois for water quality, placing it mid-range in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

As a small community water system, Gorham may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
85.6 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
41.6/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Gorham, IL water safe to drink?

Concerns Identified

Gorham's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.6/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,143 residents using surface water (rivers, lakes, or reservoirs).

3
Active Violations
0.0 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Gorham

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Gorham's water quality assessment. Grade: A- (85.6/100).

Violation
1 drinking water violation recorded

Contaminants: LEAD AND COPPER RULE REVISIONS.

Violation
1 drinking water violation recorded

Contaminants: Consumer Confidence Rule.

Disaster
SEVERE STORMS AND FLOODING

Federal disaster declaration (FEMA DR-4461). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Chlorite.

Disaster
HURRICANE KATRINA EVACUATION

Federal disaster declaration (FEMA DR-3230). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

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

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

Well within EPA limits.

Violation history

Gorham's water system has 7 total violations on record, including 1 health-based violation. 3 remain unresolved. 2 violations were issued in the last 5 years.

RPTOtherMCLMR
Most recent violations:
Jul 2025 LEAD AND COPPER RULE REVISIONS Open
Jul 2021 Consumer Confidence Rule Open
Jan 2010 Chlorite Resolved
Feb 2003 Coliform (TCR) Resolved
Jun 2002 Coliform (TCR) Resolved

Flood & environmental risk

Jackson County has experienced 6 federally declared disasters since 1969. 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 AND FLOODING
Flood FEMA DR-4461
HURRICANE KATRINA EVACUATION
Hurricane FEMA DR-3230
SEVERE STORMS & FLOODING
Flood FEMA DR-997

Where does Gorham's water come from?

Gorham's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,143 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment.

What Gorham residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Gorham'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

Gorham'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
Compliance Record

Violation summary

7
Total violations
1
Health-based
3
Active / unresolved
Jul 2025
Most recent violation
Compliance Record

Violations & advisories

7 Total
3 Active
1 Health-based
4 Resolved
Violations by category
Total Coliform Rule
2
Lead and Copper Rule Revisions
1
Consumer Confidence Rule
1
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Radionuclides and Revised Rad Rule
1
Jul 2025 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Jul 2021 Active
Consumer Confidence Rule
Other Violation 0
Active
Compliance Violation
Monitoring 0
Jan 2010 Resolved
Chlorite
Max Contaminant Level
Health-Based Health Resolved Jan 2010
Feb 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 2003
Jun 2002 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2002
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 Gorham

Industrial polluters nearby

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

FacilityTop chemicalTo surface water (lbs/yr)Distance
PENN ALUMINUM
Primary Metals · PENN ALUMINUM INTERNATIONAL
MURPHYSBORO, IL62966
9.3 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D1 — moderate drought

Jackson County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

8.6%
Months in D2+ (last 30y)
4
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

6
Declared disasters
Sep 2019
Most recent
Flood
Most common type

Jackson County has experienced 6 federally declared disasters since 1969. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2019
SEVERE STORMS AND FLOODING
Flood FEMA #4461
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3230
Jul 1993
SEVERE STORMS & FLOODING
Flood FEMA #997
Apr 1979
SEVERE STORMS & FLOODING
Flood FEMA #583
Apr 1973
SEVERE STORMS & FLOODING
Flood FEMA #373
Aug 1969
HEAVY RAINS & FLOODING
Flood FEMA #276

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 0.0 ppb from 1993 (0.0 ppb) to 2024 (0.0 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
1,143
Water Systems
1
Water Source

Where Gorham's water comes from

Purchased Surface Water

Gorham's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 1,143 people through 1 water system.

Infrastructure

Water systems serving Gorham

System Name PWSID Population Source
GORHAM IL0770350 1,143 SWP
Regional Comparison

How Gorham compares

Full Illinois rankings →

Gorham's score of 85.6/100 is above the average of 56/100 among major Illinois cities. It outscores 9 of 10 nearby cities.

Gorham (this city)
85.6
Chicago
35.2
Aurora
45.5
Joliet
38.5
Naperville
81.2
Champaign
91.9
Illinois avg
56
City Profile

About Gorham, IL

Wikipedia →

Gorham is a village in Jackson County, Illinois, United States. The population was 173 at the 2020 census. It is known locally for its near-annihilation during the deadly 1925 Tri-State tornado.

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Frequently asked questions

Is Gorham, IL tap water safe to drink?

Gorham's water quality earned a grade of A- (85.6/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #365 out of 891 cities tested in Illinois.

What contaminants are in Gorham's water?

Lead was measured at 0.0 ppb (90th percentile). 7 violations are on record.

How is Gorham'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 Gorham?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Gorham's water come from?

Gorham's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,143 residents.

What health violations has Gorham's water system had?

Gorham has 1 health-based violation on record. The most recent violation was recorded in July 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 3 violations remain unresolved.

How does Gorham's water compare to other cities?

Gorham ranks #365 out of 891 cities in Illinois (better than 59% of state cities) and #5229 out of 15744 cities nationally (67th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Gorham's small water system affect quality?

Gorham's system serves approximately 1,143 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 7 violations on record.