County · Illinois

Madison County, Illinois: drinking water records

Name: Drinking water records for Madison County, Illinois
Creator: U.S. Environmental Protection Agency
License: https://www.usa.gov/government-works

Explore EPA records for 41 community water systems across 28 ZIP codes in Madison County, then find water-testing resources and available recent monitoring-station readings.

In focus41Community water systems

Public records. Clearer context.

Data as of EPA UCMR 5 final release, August 2026 (file dated Aug 28, 2026) · EPA SDWIS 2026Q2 (file dated Jul 9, 2026). How we build these pages

Drinking-water records

EPA survey and compliance records are historical reports. UCMR 5 results are available for 19 of the 41 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.

systems in EPA's PFAS survey

systems where PFAS was found

systems at or above the PFOA or PFOS limit, on the yearly-average basis EPA uses

systems that have reached the lead action level

systems with a health-based violation since 2016

System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.

Water systems in this county

All 41 active community systems in the available county records, sorted by record completeness. Scroll the table to explore more systems.

Water system	People served	PFAS survey results	PFAS found	Health-based violations	Lead, 9 in 10 homes at or below
Holiday Shores Sd IL1195110	2,840	120	2	3	3.7 ppbbelow the action level
Moro Pwd IL1195250	723	60	3	1	0 ppbbelow the action level
Il American-Alton IL1195150	46,127	120	3	0	3 ppbbelow the action level
Il American-Granite City IL1195030	33,572	120	3	0	6 ppbbelow the action level
Collinsville IL1194280	29,500	60	8	0	4.5 ppbbelow the action level
Edwardsville IL1190250	26,808	60	1	0	0 ppbbelow the action level
Troy IL1191000	16,962	60	1	0	0 ppbbelow the action level
Bethalto IL1190150	15,210	60	2	0	1 ppbbelow the action level
Glen Carbon IL1190300	12,618	120	3	0	0 ppbbelow the action level
Highland IL1190550	10,674	120	1	0	1.7 ppbbelow the action level
Wood River IL1191150	10,464	60	3	0	0 ppbbelow the action level
Maryville IL1190750	10,150	60	0	0	2 ppbbelow the action level
Fosterburg Pwd IL1195220	7,940	120	3	0	0 ppbbelow the action level
East Alton IL1190200	5,786	60	8	0	0 ppbbelow the action level
Mitchell Pwd IL1195210	5,253	120	4	0	0 ppbbelow the action level
North East Central Pwd IL1195280	3,975	60	4	0	1.3 ppbbelow the action level
Three County Pwd IL1195450	3,575	0	0	5	0 ppbbelow the action level
Tritownship Water District IL1190080	3,470	120	0	0	1.3 ppbbelow the action level
Pontoon Beach Pwd IL1195300	3,325	120	3	0	0.6 ppbbelow the action level
Southern Il University-Edwardsville IL1195550	2,817	60	2	0	1.8 ppbbelow the action level
St Jacob IL1190950	1,835	0	0	2	0 ppbbelow the action level
Grantfork IL1190350	1,766	0	0	1	0 ppbbelow the action level
Pierron IL1194760	1,709	0	0	2	0 ppbbelow the action level
Village Green Mobile Home Park IL1195350	188	0	0	1	0 ppbbelow the action level
South Roxana IL1190970	1,891	0	0	0	0 ppbbelow the action level
Meadowbrook Pwd IL1195200	1,778	0	0	0	1.8 ppbbelow the action level
Roxana IL1190900	1,517	0	0	0	0 ppbbelow the action level
Hartford IL1190500	1,260	0	0	0	0 ppbbelow the action level
Worden IL1191200	1,096	0	0	0	2 ppbbelow the action level
Hamel IL1190450	1,087	0	0	0	0 ppbbelow the action level
Marine IL1190700	1,037	0	0	0	1.2 ppbbelow the action level
Il American-Livingston IL1190600	825	0	0	0	0 ppbbelow the action level
Alhambra IL1190050	755	0	0	0	2.7 ppbbelow the action level
Enchanted Village IL1195160	720	0	0	0	0 ppbbelow the action level
Forge at the Lake IL1190120	387	0	0	0	1 ppbbelow the action level
Meridian Village IL1190110	339	0	0	0	0 ppbbelow the action level
University Flats MHP IL1190260	203	0	0	0	3 ppbbelow the action level
East 30 MHP IL1190400	175	0	0	0	0 ppbbelow the action level
Quail Run Mobile Home Park IL1190270	168	0	0	0	0 ppbbelow the action level
Country Hills Wtr, INC. IL1190030	166	0	0	0	0 ppbbelow the action level
Oak Grove MHP - Madison County IL1195180	138	0	0	0	0.7 ppbbelow the action level

USGS · Monitoring stations

The water, more recently.

Available station readings in Madison County, Illinois. Each measurement keeps its time, unit and original source.

These readings describe water at a monitoring station. They do not test your tap, measure PFAS or lead, or determine whether water is safe to drink or swim in.

Recent observations load when this section comes into view.

How these readings update

We check for updates every 10 minutes while this section is visible and show supported observations from the last 48 hours. The time beside a reading is when USGS measured it; the checked time is when our service retrieved the response. We mark a reading more than 6 hours old as older. Provisional observations can change after USGS review. A missing reading does not mean zero or clean water.

Temperature, pH, dissolved oxygen, turbidity, conductivity, streamflow and water level are shown only where a station reports them. Different measurements have different units and sampling intervals. USGS data and documentation.

Your next step

Water testing, reports & local help.

Use these official directories to find your drinking-water agency, a certified laboratory and public water records. We have not yet added an individually reviewed local resource list for this county.

Official national directories

Water testing

Find your state’s private-well program

EPA’s state directory points well owners to local program information. Services and eligibility vary by state and county.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-05

Water testing

Find a certified drinking-water laboratory

Use EPA’s directory to reach your state’s laboratory certification program. EPA does not provide on-request testing of residential drinking water.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-08-11

Public records

Find your utility’s Consumer Confidence Report

EPA links to community water-system reports and explains how to read them. Look for your actual supplier rather than assuming every address in a county shares one system.

U.S. Environmental Protection Agency
Source reviewed 2026-09-15 · Source updated 2026-09-09

Public records

Explore USGS water observations

Find current and historical observations from USGS monitoring locations, including available stream, lake, and groundwater data. Measurements vary by station and do not replace a test of your household water.

U.S. Geological Survey
Source reviewed 2026-09-15

A county overview cannot identify every property’s water provider. If you use a public water system, confirm its name on your bill and request its annual Consumer Confidence Report. Private wells need their own testing; public-system records do not describe a private well.

Understand water testing and laboratory reports

Resource descriptions are compiled by Tap Water Lookup. Review dates describe our source check, not a new water sample. How we review sources · Suggest a correction

Explore your area

Local coverage in Madison County

28ZIP areas in this overview

Explore the water-system records, recent station readings and testing resources on this county page. They describe the systems and stations identified in each section; they are not a separate water test for every community.

Towns and communities

Alhambra
Alton
Bethalto
Collinsville
East Alton
Edwardsville
Glen Carbon
Godfrey
Granite City
Hamel
Highland
Livingston
Madison
Marine
Maryville
Moro
New Douglas
Prairietown
Roxana
South Roxana
St. Jacob
Troy
Venice
Wood River
Worden

Explore water-system records Find water-testing resources

View ZIP areas and understand coverage

62001Alhambra
62002Alton
62010Bethalto
62018East Alton
62021Prairietown
62024East Alton
62025Edwardsville
62026Edwardsville
62034Glen Carbon
62035Godfrey
62040Granite City
62046Hamel
62048Madison
62058Livingston
62060Madison
62061Marine
62062Maryville
62067Moro
62074New Douglas
62084Roxana
62087South Roxana
62090Venice
62095Wood River
62097Worden
62234Collinsville
62249Highland
62281St. Jacob
62294Troy

These Census ZIP Code Tabulation Areas are grouped here by their largest county overlap. A ZIP area can cross county lines and contain several water suppliers or private wells. Place labels reflect Census geography, not verified postal city names or utility service boundaries.

Records for these areas are currently presented in this county overview rather than individual ZIP reports. An unpublished report does not mean there are no water records. Confirm your supplier on your water bill; if you use a private well, testing your own well is the relevant next step.

Beyond this county page

Keep reading. Compare nearby.

PFASChoosing a PFAS filterPFAS was found in 17 of the 19 systems EPA surveyed here. See how to check a filter’s certified PFAS reduction.LeadChoosing a lead filter11 systems here have reached the lead action level. See how to check a filter’s lead-reduction certification.Your utilityFind your annual water reportConfirm the supplier on your bill, then read its Consumer Confidence Report for local results.

Counties near Madison County

All Illinois counties

Sources and scope

EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Database prepared 2026-09-03.

Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.

Compiled by Tap Water Lookup from the sources identified on this page. Read the methodology and review process.