County · Illinois
Macoupin County, Illinois: drinking water records
Explore EPA records for 30 community water systems across 18 ZIP codes in Macoupin County, then find water-testing resources and available recent monitoring-station readings.
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 6 of the 30 listed systems in this snapshot. A system with no reported PFAS detection is not a test of every tap or every contaminant.
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 30 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 |
|---|---|---|---|---|---|
| Staunton IL1171050 | 5,756 | 120 | 1 | 1 | 1 ppbbelow the action level |
| Gillespie IL1170400 | 3,737 | 120 | 0 | 2 | 0 ppbbelow the action level |
| Mount Olive IL1170700 | 2,193 | 120 | 0 | 3 | 7.8 ppbbelow the action level |
| Carlinville IL1170150 | 6,598 | 120 | 0 | 0 | 1.2 ppbbelow the action level |
| Brighton IL1174160 | 5,041 | 120 | 3 | 0 | 2.1 ppbbelow the action level |
| Virden IL1171100 | 3,274 | 120 | 0 | 0 | 0 ppbbelow the action level |
| Central Macoupin County Rwd IL1170040 | 1,883 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Benld IL1170050 | 1,612 | 0 | 0 | 1 | 0 ppbbelow the action level |
| South Palmyra Water Commission IL1170060 | 838 | 0 | 0 | 6 | 0 ppbbelow the action level |
| Kaho Public Water District IL1170030 | 785 | 0 | 0 | 3 | 2 ppbbelow the action level |
| Scottville Rural Water Company, INC. IL1170010 | 695 | 0 | 0 | 8 | 0 ppbbelow the action level |
| Palmyra IL1170800 | 605 | 0 | 0 | 6 | 0 ppbbelow the action level |
| Sawyerville IL1170850 | 578 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Dorchester IL1170250 | 540 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Wilsonville IL1171200 | 536 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Mount Clare IL1170650 | 311 | 0 | 0 | 1 | 0 ppbbelow the action level |
| Chesterfield IL1170200 | 184 | 0 | 0 | 3 | 0 ppbbelow the action level |
| Modesto IL1170600 | 182 | 0 | 0 | 6 | 0 ppbbelow the action level |
| Hettick IL1170500 | 174 | 0 | 0 | 7 | 0 ppbbelow the action level |
| Eagarville IL1170300 | 127 | 0 | 0 | 2 | 0 ppbbelow the action level |
| Palmyra-Modesto Water Commission IL1175150 | 110 | 0 | 0 | 6 | 0 ppbbelow the action level |
| Girard IL1170450 | 1,885 | 0 | 0 | 0 | 1.3 ppbbelow the action level |
| Bunker Hill IL1170100 | 1,760 | 0 | 0 | 0 | 3 ppbbelow the action level |
| Nilwood IL1170750 | 1,394 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Otter Lake Water Commission IL1175200 | 1,318 | 0 | 0 | 0 | 1.2 ppbbelow the action level |
| Lake Williamson Christian Center IL1175100 | 1,250 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Shipman IL1170950 | 541 | 0 | 0 | 0 | 2.1 ppbbelow the action level |
| White City IL1171150 | 485 | 0 | 0 | 0 | 0 ppbbelow the action level |
| Medora IL1170550 | 484 | 0 | 0 | 0 | 3 ppbbelow the action level |
| Royal Lakes IL1170830 | 235 | 0 | 0 | 0 | 1.4 ppbbelow the action level |
USGS · Monitoring stations
The water, more recently.
Available station readings in Macoupin 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.
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.
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.
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.
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 reportsResource 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 Macoupin County
18ZIP 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
- Benld
- Bunker Hill
- Carlinville
- Chesterfield
- Eagarville
- Gillespie
- Girard
- Hettick
- Modesto
- Nilwood
- Palmyra
- Sawyerville
- Shipman
- Staunton
- Virden
- White City
- Wilsonville
View ZIP areas and understand coverage
- 62009Benld
- 62014Bunker Hill
- 62023Eagarville
- 62033Gillespie
- 62069White City
- 62079
- 62085Sawyerville
- 62088Staunton
- 62093Wilsonville
- 62626Carlinville
- 62630Chesterfield
- 62640Girard
- 62649Hettick
- 62667Modesto
- 62672Nilwood
- 62674Palmyra
- 62685Shipman
- 62690Virden
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.
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.