No health-based violations on EPA record since 2016.
Serves about 8,900 people (3,560 connections) with groundwater from its own wells, and buys water from Mattoon and Embarras Area Water District.
From EPA's record for IL0295100. PurityMap is independent of Clear Water Service Corp.
Are you this utility? Correct this listing →
No health-based violations in the last 10 years, from EPA's SDWIS compliance database.
EPA required this system to test for 30 unregulated and emerging contaminants, from March 2025 to September 2025.
| Contaminant | Result | Limit | Status | Sampled | Source |
|---|---|---|---|---|---|
| 11-Chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (11Cl-PF3OUdS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| 1H, 1H, 2H, 2H-perfluorodecane sulfonic acid (8:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| 1H, 1H, 2H, 2H-perfluorohexane sulfonic acid (4:2 FTS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| 1H, 1H, 2H, 2H-perfluorooctane sulfonic acid (6:2 FTS) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| 4,8-Dioxa-3H-perfluorononanoic acid (ADONA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| 9-Chlorohexadecafluoro-3-oxanone-1-sulfonic acid (9Cl-PF3ONS) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Hexafluoropropylene oxide dimer acid (HFPO-DA) (GenX chemicals) | < 5 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Lithium | < 9 µg/L | 10 µg/L EPA health reference level (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| N-ethyl perfluorooctanesulfonamidoacetic acid (NEtFOSAA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| N-methyl perfluorooctanesulfonamidoacetic acid (NMeFOSAA) | < 6 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Nonafluoro-3,6-dioxaheptanoic acid (NFDHA) | < 20 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoro (2-ethoxyethane) sulfonic acid (PFEESA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoro-3-methoxypropanoic acid (PFMPA) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoro-4-methoxybutanoic acid (PFMBA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorobutanesulfonic acid (PFBS) | < 3 ng/L | 2,000 ng/L EPA health advisory (screening, not a legal limit)Screening level, not a legal limit | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorobutanoic acid (PFBA) | < 5 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorodecanoic acid (PFDA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorododecanoic acid (PFDoA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoroheptanesulfonic acid (PFHpS) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoroheptanoic acid (PFHpA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorohexanesulfonic acid (PFHxS) | < 3 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorohexanoic acid (PFHxA) | < 3 ng/L | 400,000 ng/L Michigan EGLE state MCL (strictest US state) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorononanoic acid (PFNA) | < 4 ng/L | 10 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorooctanesulfonic acid (PFOS) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorooctanoic acid (PFOA) | < 4 ng/L | 4.0 ng/L federal MCL (2024) | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoropentanesulfonic acid (PFPeS) | < 4 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoropentanoic acid (PFPeA) | < 3 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorotetradecanoic acid (PFTA) | < 8 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluorotridecanoic acid (PFTrDA) | < 7 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
| Perfluoroundecanoic acid (PFUnA) | < 2 ng/L | No federal or state limit; shown for transparency | Not detected above the reporting limit | 2025-03-04 to 2025-09-09 | UCMR5 Analytical Results: CLEAR WATER SERVICE CORP (IL0295100) |
Screening tells you if something is worth a closer look; a lab result is the number you can act on.
As an Amazon Associate, PurityMap earns from qualifying purchases. Affiliate disclosure
Screening: quick check, not lab-grade
Safe Home (EnviroTestKits)
Lead, read as one of three ranges: 0–4, 5–15 or 15+ ppb
Turnaround: 5 minutes
What it can't tell you: It shows a lead range, not an exact level, and tests nothing else unless you pay extra for the optional lab test.
Lab-certified results
ETR Laboratories
50+ substances, including lead, copper, arsenic, nitrate, hardness and coliform bacteria
Environmental Testing and Research Laboratories (ETR Labs), Leominster, MA · ISO/IEC 17025:2017, ANAB certificate AT-2638 · 2–4 business days after the lab receives it
What it can't tell you: It does not test PFAS, and not every result on the panel falls under the lab's accredited scope.
Get PurityMap updates about this water system.
Follow this water →According to EPA's record, Clear Water Service Corp uses groundwater from its own wells, and buys water from Mattoon and Embarras Area Water District.
No health-based violations on EPA record since 2016. EPA also lists 3 missed or late tests or reports in 10 years. The record comes from EPA's SDWIS compliance database.
The 90th-percentile lead result in Clear Water Service Corp's latest lead and copper round, which ended in December 2025, was 1.1 µg/L, below the federal action level of 15 µg/L.
PurityMap has no verified website for Clear Water Service Corp. Your water bill lists the ways to contact your supplier and pay. PurityMap does not take payments.