CHESTER STP

Address

ROUTE 3 SOUTH
CHESTER, IL 62233
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County

RANDOLPH County

Inspections

2 · last Apr 23, 2024

Total Penalties

$0

Registry ID

110009982411

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.

6

Water (CWA)
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	Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment	Mar 15, 2026	—	Open
cwa	Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment	Feb 23, 2026	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Jan 6, 2026	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Oct 31, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S., not permit compliant, no endangerment	Oct 27, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Oct 22, 2025	—	Open
cwa	Dry-weather SSO, no discharge to waters of the U.S., that may endanger health or the environment	Sep 6, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Sep 2, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Aug 18, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Jul 29, 2025	—	Open
cwa	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Apr 6, 2025	—	Open
cwa	Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Mar 14, 2025	—	Open
cwa	Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment	Nov 4, 2024	—	Open
cwa	Schedule Event achieved late but reported	Oct 31, 2023	—	Open
cwa	Schedule Event unachieved but reported	Jul 31, 2023	Oct 10, 2023	Resolved
cwa	Schedule Event achieved late but reported	Jul 31, 2023	—	Open
cwa	Schedule Event reported late	Jul 31, 2023	—	Open
cwa	Schedule Event unachieved and not reported	Jul 31, 2023	Oct 10, 2023	Resolved
cwa	Schedule Event unachieved and not reported	Apr 30, 2023	Sep 26, 2023	Resolved
cwa	Schedule Event reported late	Apr 30, 2023	—	Open
cwa	Schedule Event achieved late but reported	Apr 30, 2023	—	Open
cwa	Schedule Event unachieved but reported	Apr 30, 2023	Sep 26, 2023	Resolved
cwa	Schedule Event achieved late but reported	Feb 28, 2021	—	Open
cwa	Schedule Event achieved late but reported	Jul 31, 2020	—	Open
cwa	Schedule Event unachieved and not reported	Mar 31, 2016	Jun 2, 2016	Resolved
cwa	Schedule Event reported late	Mar 31, 2016	—	Open
cwa	Schedule Event achieved late but reported	Mar 31, 2016	—	Open
cwa	Schedule Event unachieved but reported	Mar 31, 2016	Jun 2, 2016	Resolved
cwa	Schedule Event unachieved but reported	Dec 31, 2015	Feb 16, 2016	Resolved
cwa	Schedule Event unachieved and not reported	Dec 31, 2015	Feb 16, 2016	Resolved
cwa	Schedule Event reported late	Dec 31, 2015	—	Open
cwa	Schedule Event achieved late but reported	Dec 31, 2015	—	Open
cwa	Schedule Event unachieved but reported	Jun 30, 2015	Dec 10, 2015	Resolved
cwa	Schedule Event achieved late but reported	Jun 30, 2015	—	Open
cwa	Schedule Event reported late	Jun 30, 2015	—	Open
cwa	Schedule Event unachieved and not reported	Jun 30, 2015	Dec 10, 2015	Resolved
cwa	Schedule Event reported late	Jan 31, 2015	—	Open
cwa	Schedule Event achieved late but reported	Jan 31, 2015	—	Open
cwa	Schedule Event unachieved but reported	Jan 31, 2015	Oct 5, 2015	Resolved
cwa	Schedule Event reported late	Jan 31, 2015	—	Open
cwa	Schedule Event achieved late but reported	Jan 31, 2015	—	Open
cwa	Schedule Event unachieved and not reported	Jan 31, 2015	Oct 5, 2015	Resolved
cwa	Schedule Event achieved late but reported	Jul 31, 2014	—	Open
cwa	Schedule Event unachieved but reported	Jan 31, 2014	Dec 10, 2015	Resolved
cwa	Schedule Event achieved late but reported	Jan 31, 2014	—	Open
cwa	Schedule Event reported late	Jan 31, 2014	—	Open
cwa	Schedule Event achieved late but reported	Jan 31, 2014	—	Open
cwa	Schedule Event unachieved and not reported	Jan 31, 2014	Dec 10, 2015	Resolved
cwa	Schedule Event reported late	Jan 31, 2013	—	Open
cwa	Schedule Event achieved late but reported	Jan 31, 2013	—	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	468.00 MPN/100mL	400.00	+17%	Oct 2025	Open
Coliform, fecal general	DMR, Limited - Numeric Violation	489.00 MPN/100mL	400.00	+22%	Sep 2025	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	12.00 mg/L	2.70	+344%	Jan 2024	Open
Coliform, fecal general	DMR, Limited - Numeric Violation	1,050.00 MPN/100mL	400.00	+163%	Jul 2021	Open
Oxygen, dissolved [DO]	DMR, Limited - Numeric Violation	5.92 mg/L	6.00	+1%	Jul 2021	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	15.00 mg/L	4.30	+249%	Sep 2018	Open

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