Non-Compliance
Clean Water Act
ELMHURST STP, CITY OF
Quick Summary
- •Currently out of compliance in at least one environmental program (CAA, CWA, or RCRA).
- •Assessed $0 in total penalties since records began.
- Address
-
625 SOUTH ILLINOIS ROUTE 83
ELMHURST, IL 60126
View on map ↗ - County
- DUPAGE County
- Inspections
- 2 · last Sep 29, 2022
- Total Penalties
- $0 · last Sep 17, 2014
- Registry ID
- 110039975970
Compliance Status (Last 12 Quarters)
Number of calendar quarters, out of the last 12, in which this facility was in violation of its permit. Zero means no recorded violations in that program over the past three years.
5
Water (CWA)
Qtrs Non-Compliant
Qtrs Non-Compliant
Compliance Violations
Individual permit violations recorded by the EPA across air, water, and hazardous waste programs. Open violations are unresolved as of the most recent ECHO data update.
| Program | Type | Violation Date | Return to Compliance | Status |
|---|---|---|---|---|
| cwa | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Mar 6, 2026 | — | Open |
| cwa | Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Jan 23, 2026 | — | Open |
| cwa | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | Oct 19, 2025 | — | Open |
| cwa | Wet-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment | Oct 19, 2025 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2022 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2022 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2021 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2020 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2019 | — | Open |
| cwa | Schedule Event unachieved but reported | Jan 31, 2019 | Aug 25, 2022 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2019 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2019 | Aug 25, 2022 | Resolved |
| cwa | PR: Biosolids: Other Management Practice Violation | Jan 1, 2019 | Sep 30, 2020 | Resolved |
| cwa | Schedule Event unachieved and not reported | Feb 29, 2016 | Mar 31, 2016 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2016 | Jun 1, 2016 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2016 | — | Open |
| cwa | Schedule Event reported late | Jan 31, 2016 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2016 | Jun 1, 2016 | Resolved |
| cwa | Schedule Event reported late | Jul 31, 2015 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 31, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 31, 2015 | — | Open |
| cwa | Schedule Event reported late | Jul 31, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jul 31, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Jul 31, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jun 30, 2015 | Jul 31, 2015 | Resolved |
| cwa | Schedule Event unachieved and not reported | Jun 15, 2015 | Jul 16, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Apr 30, 2015 | — | Open |
| cwa | Schedule Event reported late | Apr 30, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Apr 30, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event unachieved but reported | Apr 30, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 31, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event unachieved but reported | Jan 31, 2015 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event reported late | Jan 31, 2015 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jan 15, 2015 | Feb 15, 2015 | Resolved |
| cwa | Schedule Event unachieved but reported | Oct 31, 2014 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event reported late | Oct 31, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Oct 31, 2014 | Oct 13, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Oct 31, 2014 | — | Open |
| cwa | Schedule Event achieved late but reported | Jul 31, 2014 | — | Open |
| cwa | Schedule Event unachieved but reported | Jul 31, 2014 | Dec 9, 2015 | Resolved |
| cwa | Schedule Event reported late | Jul 31, 2014 | — | Open |
| cwa | Schedule Event unachieved and not reported | Jul 31, 2014 | Dec 9, 2015 | Resolved |
| cwa | Schedule Event achieved late but reported | Jan 31, 2013 | — | Open |
| cwa | WW SSO - Improper Operation and Maintenance | Mar 5, 2011 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Mar 5, 2011 | — | Open |
| cwa | Schedule Event achieved late but reported | Jan 31, 2011 | — | Open |
| cwa | WW SSO - Failure to report other violation | Jan 20, 2011 | — | Open |
| cwa | WW SSO - Overflow to Dry Land or Building Backup | Mar 8, 2010 | — | Open |
Discharge Limit Exceedances
Instances where this facility's reported discharge monitoring results exceeded its permitted limits under the Clean Water Act. Exceedance percentage shows how far over the permit limit the discharge was.
| Pollutant | Violation | Reported | Limit | Exceedance | Period | Status |
|---|---|---|---|---|---|---|
| Coliform, fecal general | DMR, Limited - Numeric Violation | 400.00 MPN/100mL | 400.00 | +99,999% | Jan 2026 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 40.30 mg/L | 30.00 | +34% | Jun 2025 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 6.14 mg/L | 4.60 | +33% | Apr 2025 | Open |
| Coliform, fecal general | DMR, Limited - Numeric Violation | 128,000.00 MPN/100mL | 400.00 | +31,900% | Jun 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 4.80 mg/L | 3.80 | +26% | Mar 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 8.57 mg/L | 8.40 | +2% | Mar 2021 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 757.27 kg/d | 651.04 | +16% | Nov 2020 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 5.57 mg/L | 6.00 | +7% | Jul 2020 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 8.70 mg/L | 6.00 | +99,999% | Jun 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 1,116.84 kg/d | 908.91 | +23% | May 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 16.63 mg/L | 12.00 | +39% | May 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 34.00 mg/L | 24.00 | +42% | May 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 174.34 kg/d | 113.50 | +54% | Apr 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 10.00 mg/L | 4.60 | +117% | Apr 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 2.30 mg/L | 1.50 | +53% | Apr 2020 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 757.27 kg/d | 348.22 | +117% | Apr 2020 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 27.50 mg/L | 24.00 | +15% | Nov 2019 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 5.24 mg/L | 4.60 | +14% | Sep 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 3,657.62 kg/d | 1,817.36 | +101% | Feb 2019 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 50.40 mg/L | 24.00 | +110% | Feb 2019 | Open |
| BOD, 5-day, 20 deg. C | DMR, Limited - Numeric Violation | 37.40 mg/L | 30.00 | +25% | Nov 2018 | Open |
| Nitrogen, ammonia total [as N] | DMR, Limited - Numeric Violation | 174.34 kg/d | 121.22 | +44% | Aug 2018 | Open |
| BOD, carbonaceous [5 day, 20 C] | DMR, Limited - Numeric Violation | 24.10 mg/L | 20.00 | +21% | Sep 2017 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 56.60 mg/L | 30.00 | +89% | Jun 2017 | Open |
| Oxygen, dissolved [DO] | DMR, Limited - Numeric Violation | 4.65 mg/L | 5.00 | +7% | Jul 2016 | Open |
| Solids, total suspended | DMR, Limited - Numeric Violation | 38.00 mg/L | 30.00 | +27% | Feb 2016 | Open |
Enforcement Actions
Formal enforcement cases brought by the EPA or state agencies, including administrative orders and civil penalties assessed. Penalty amounts reflect what was formally assessed, not necessarily what was collected.
Civil Judicial Action
Clean Water Act
· Case IL-0028746 1 · Sep 17, 2014
$25,000
State Administrative Order of Consent
Clean Water Act
· Case IL-0028746 · Jul 3, 2013
State Administrative Order of Consent
Clean Water Act
· Case IL-N00008315 · Nov 28, 2007
State Administrative Order of Consent
Clean Water Act
· Case IL-N00007422 · Dec 19, 2005
Civil Judicial Action
Clean Water Act
· Case IL-N00000231 · Nov 28, 1988
$15,000
CWA 309A AO For Compliance
Clean Water Act
· Case 05-1985-N019 · Dec 31, 1984
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