Clean Water Act discharge permit · NPDES ILG840131
HEIDELBERG MATERIALS MIDWEST AGG LLC - NOKOMIS, Nokomis, IL: NPDES ILG840131 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
HEIDELBERG MATERIALS MIDWEST AGG LLC - NOKOMIS, held by HANSON MATERIAL SERVICE, holds NPDES permit ILG840131, which discharges to Unnamed Trib South Fork Sangamon River. EPA’s file records it issued September 17, 2013 and expiring February 28, 2017. 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 | HEIDELBERG MATERIALS MIDWEST AGG LLC - NOKOMIS |
|---|---|
| Permittee as filed | HANSON MATERIAL SERVICE |
| NPDES ID | ILG840131 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 17, 2013 |
| Expiration date | February 28, 2017 |
| Address | Nokomis, IL 62075 |
| Receiving water | UNNAMED TRIB SOUTH FORK SANGAMON RIVER |
| Subwatershed | Town of Nokomis-East Fork Shoal Creek (HUC 071402030301) |
| SIC | 1422 – Crushed And Broken Limestone |
| Other EPA IDs (FRS) | RCRA handler ILD046695011; ICIS-AIR source IL000135809AAA |
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
- 4Pollutants on file
- 4Under a numeric limit
- 4With a violation of any kind
- 1With 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 | 4 | 13 | 1 | August 31, 2023 | |
| Solids, total suspended | 4 | 12 | 0 | ||
| Offensive Conditions | 2 | 7 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 5 | 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 ILG840131.
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 ILG840131 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.