Clean Water Act discharge permit · NPDES IL0070971
ILLINOIS TOOL WORKS-HARWOOD HEIGHTS, Harwood Heights, IL: NPDES IL0070971 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
ILLINOIS TOOL WORKS-HARWOOD HEIGHTS, held by ILLINOIS TOOL WORKS INC, holds NPDES permit IL0070971, which discharges to Storm Sewer Trib To Des Plaines Rvr. EPA’s file records it issued May 5, 2017 and expiring May 31, 2022. 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 | ILLINOIS TOOL WORKS-HARWOOD HEIGHTS |
|---|---|
| Permittee as filed | ILLINOIS TOOL WORKS INC |
| NPDES ID | IL0070971 |
| 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 | May 5, 2017 |
| Expiration date | May 31, 2022 |
| Address | Harwood Heights, IL 60656 |
| Receiving water | STORM SEWER TRIB TO DES PLAINES RVR |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Branch Chicago River (HUC 071200030106) |
| SIC | 3569 – General Industrial Machinery |
| Other EPA IDs (FRS) | RCRA handler ILD066210394; ICIS-AIR source IL000031114AAD |
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
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| 1,1-Dichloroethane | 1 | 16 | 11 | March 31, 2013 | 290% over the limit |
| 1,1,1-Trichloroethane | 1 | 11 | 2 | May 31, 1997 | 68% over the limit |
| Trichloroethylene | 1 | 11 | 2 | March 31, 2012 | 396% over the limit |
| Methyl ethyl ketone | 1 | 5 | 0 | ||
| pH | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 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 IL0070971.
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.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, IL0070971.
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- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 IL0070971 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.