Clean Water Act discharge permit · NPDES IL0072851
MATHEWS COMPANY, Crystal Lake, IL: NPDES IL0072851 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 3Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
MATHEWS COMPANY holds NPDES permit IL0072851, which discharges to Unnamed Trib To Sleepy Hollow Creek. EPA’s file records it issued August 29, 2019 and expiring August 31, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | MATHEWS COMPANY |
|---|---|
| Permittee as filed | MATHEWS COMPANY |
| NPDES ID | IL0072851 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 29, 2019 |
| Expiration date | August 31, 2024 |
| Address | Crystal Lake, IL 60012 |
| Receiving water | UNNAMED TRIB TO SLEEPY HOLLOW CREEK |
| Subwatershed | Griswold Lake-Fox River (HUC 071200061102) |
| SIC | 3523 – Farm Machinery And Equipment |
| Other EPA IDs (FRS) | RCRA handler ILD005445333 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 3Pollutants on file
- 3Under a numeric limit
- 3With a violation of any kind
- 2With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| pH | 2 | 23 | 2 | July 31, 2000 | |
| Temperature, water deg. fahrenheit | 2 | 12 | 1 | January 31, 2025 | 5% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 22 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES IL0072851.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID IL0072851 there.
Nearby on the register
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- Every permit record in Illinois, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.