Water System Report IL

Geneseo

EPA ID: IL0730500 ยท 6,539 people served ยท 1 ZIP code

ZipCheckup's reading of EPA records for Geneseo (IL0730500): no drinking-water violations recorded since 2021. Zero EPA violations appear on record for Geneseo, which serves 6,539 people.

Data: EPA SDWIS

6,539
People Served
1
ZIP Code Served
0
Violations (since 2021)
Groundwater
Water Source
0.0014 mg/L
Most recent lead 90th percentile on record (monitoring period ending 2025-12-31)
Zone 1
County Radon Potential ยท High
0
Contaminants Flagged
$218K
Median Home Value in ZIP Codes Served

Service Area Map

Coverage area for Geneseo Source: EPA SDWIS service area boundaries.

Service area boundary

Demographics of ZIP Codes Served

$81,141
Median Household Income
12,049
Population of ZIP Codes Served (Census)
31%
Disadvantaged Population
50th
Poverty Percentile
60th
Energy Burden Percentile
74%
Pre-1986 Housing

The ZIP codes associated with Geneseo have a median household income of $81,141 and about 12,049 residents live in those ZIP codes (Census; not the number of people this system supplies). Approximately 74% of housing stock was built before 1986, which increases the likelihood of lead service lines and older plumbing.

Environmental Justice Note: On average, 31% of census tracts in the counties mapped to this service area are designated disadvantaged by the federal Climate and Economic Justice Screening Tool (CEJST, 2022 version). Communities with higher disadvantaged populations often face disproportionate environmental and health burdens, including aging water infrastructure and limited resources for remediation.

๐Ÿ’ง Where Does Your Water Come From?

Groundwater

Geneseo's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table.

Moderate Risk
Source Contamination Risk
60th
Wastewater Discharge Proximity
20th
Superfund Site Proximity

Wastewater Proximity Note: This service area ranks in the 60th percentile nationally for proximity to wastewater discharge points.

Infrastructure Risk

49 yr
Estimated pipe age (modeled from housing age)
Copper
Likely pipe material (modeled)
21 yr
Est. Remaining Life
Moderate Wear
Decay Status
Installed 70% of expected lifespan used (estimate) End of life

PFAS in ZIP Codes This System Serves

PFAS ("forever chemicals") have been reported in samples from water systems associated with the ZIP codes in this system's area. These results can come from other water systems serving the same ZIP codes; check the UCMR5 section for any results reported for this system. 1 detection recorded.

State PFAS values in our reference data (health advisory / health-based guidance value (not a limit)); check current state rules: PFHxA: 1900 ppt, PFBA: 3800 ppt
Health concern: Exposure to certain PFAS has been associated with some cancers and with immune and developmental effects; effects differ by compound. Many PFAS break down very slowly in the environment.
Recommended filter: An activated carbon filter certified under NSF/ANSI 53 or a reverse osmosis system certified under NSF/ANSI 58 for the PFAS listed in its certification. Find the right filter โ†’

Comparable Water Systems

Similar-sized systems in Illinois

Carterville
6,528 people
7 violations
Elburn
6,559 people
D 0 violations
Winthrop Harbor
6,565 people
C 20 violations
Mahomet
6,580 people
C 4 violations
Carlinville
6,598 people
B 1 violation

Estimated Remediation Costs

Average estimated costs across ZIP codes served by this system

PFAS Treatment
PFAS Treatment $500
Total Estimated Cost $500

Based on national averages for common remediation projects. Actual costs vary by property. Only issues flagged by EPA, FEMA, or state data for each ZIP code are included.

Cost of Inaction

Illustrative per-household cost scenario based on stated assumptions:

PFAS Exposure - Lifetime Cost $1,000

Per person (emerging research est.)

Estimated Cumulative Cost Per Household

5 years
$165
10 years
$330
20 years
$660

Compare: Estimated remediation cost is $500 (one-time) vs. $330 in estimated inaction costs over 10 years.

Individual costs vary by household size, property, and health factors. These estimates are for awareness, not financial advice.

System Overview

Geneseo (EPA ID: IL0730500) is a community water system in Illinois that serves approximately 6,539 people from groundwater sources.

This system serves ZIP code 61254 in Geneseo.

Violation History

No accepted violation records in the 2021-2026 window - The accepted EPA ECHO 2026Q2 snapshot contains zero violation records for this system whose record year falls from 2021 through 2026, inclusive. This is not a tap-water safety guarantee.

Lead & Copper

EPA Lead and Copper Rule evidence attributed directly to this water system:

Lead Level Exceeds Action Level Sample Date
0.0014 mg/L No 2025-12-31

The accepted LCR snapshot contains 1 reported copper action-level exceedance record for this PWSID. The source does not provide a verified copper level for publication.

Radon Risk in Service Area

1 of 1 ZIP records with known zones is in EPA Radon Zone 1.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

ZIP Codes Served

Coverage: Service area ZIP codes sourced from EPA Community Water System Service Area Boundaries v3 (March 2026 release). These ZIPs reflect the actual deployment footprint recorded by IL or modeled from parcel and building-footprint data.

Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Geneseo (IL0730500) on EPA.gov.

Frequently Asked Questions

Is Geneseo water safe to drink?

The accepted 2026Q2 ECHO snapshot contains zero violation records for Geneseo in the inclusive 2021-2026 record-year window. This is a compliance-record finding, not a guarantee about water at a specific tap.

How many people does Geneseo serve?

Geneseo serves approximately 6,539 people across 1 ZIP code in Illinois.

Where does Geneseo get its water?

The primary water source is groundwater.

Federal UCMR5 PFAS Monitoring: Detected

This water system was tested under the federal EPA Unregulated Contaminant Monitoring Rule (UCMR5). PFAS compounds were detected; the table compares each one with the EPA MCL where one exists (April 2024 rule, compliance required from 2029) and with this state's enforceable standard where one exists.

Samples collected
58
Detections
2
Latest sample
11/12/2024
Highest analyte
PFBA: 8.4 ppt
Analyte Max detected EPA MCL (compliance required from 2029) Status
PFBA 8.4 ppt No federal MCL โ€”

EPA's April 2024 PFAS rule sets MCLs of 4 ppt for PFOA and PFOS and 10 ppt for PFHxS, PFNA and HFPO-DA (GenX); water systems must comply from 2029. Other PFAS compounds have no individual federal MCL. A state standard is shown only where this system's state has its own enforceable PFAS limit. Detection results are EPA UCMR5 samples, not a measurement at your tap.

Source: U.S. EPA UCMR5 (Unregulated Contaminant Monitoring Rule, 5th cycle) โ€” per-system federal sampling, 2023โ€“2025. EPA UCMR5 monitoring program โ†’

Understand PFAS health context and filtration โ†’

Frequently Asked Questions

Should I use a water filter? ▼
No EPA drinking-water violations since 2021 are on record for Geneseo; this page does not establish contaminant levels at your tap. That is a compliance record, not a guarantee about the water at your tap; a certified filter can target a specific contaminant you are concerned about.
How many people does Geneseo serve? ▼
Geneseo serves approximately 6,539 people with drinking water across 1 ZIP code.
What is Geneseo's water source? ▼
Geneseo draws water from groundwater sources. Source type affects which contaminants are most likely to be present.
Is there lead in Geneseo's water? ▼
The most recent 90th-percentile lead result on record is 0.0014 mg/L (sample period ending 2025-12-31). This is at or below the EPA lead action level, which triggers system action and is not a safe level; the EPA health goal for lead is zero.
What is the demographic profile of the ZIP codes associated with Geneseo? ▼
The ZIP codes mapped to Geneseo have a median household income of $81,141 (Census ZIP-code estimate). In CEJST data, 31% of census tracts in the counties mapped to this area are designated disadvantaged (average across mapped ZIP codes), which may indicate greater vulnerability to environmental health risks.
Where does Geneseo get its water? ▼
Geneseo's water is classified in EPA records as a groundwater source. Groundwater is naturally filtered through rock and soil, but it can be vulnerable to PFAS contamination, nitrates from agriculture, and industrial chemicals that seep into the water table. Based on the available data, the modeled source-contamination category is moderate; test local water to assess actual exposure.

How to cite this page

APA ZipCheckup. (n.d.). Geneseo Water Quality Report, IL. https://zipcheckup.com/water-system/il0730500/
BibTeX
@misc{zipcheckup-water-system-il0730500,
  author = {{ZipCheckup}},
  title  = {{Geneseo Water Quality Report, IL}},
  year   = {n.d.},
  url    = {https://zipcheckup.com/water-system/il0730500/}
}
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