GRINNELL, CITY OF STP

Address

3976 20TH STREET
GRINNELL, IA 50112
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County

POWESHIEK County

Industry

Utilities

NAICS (North American Industry Classification)

221320

Inspections

1 · last May 2, 2023

Total Penalties

$0

Registry ID

110001123196

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.

12

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	Schedule Event unachieved but reported	Mar 1, 2017	Apr 1, 2017	Resolved
cwa	Schedule Event unachieved and not reported	Mar 1, 2016	Jul 6, 2016	Resolved
cwa	Schedule Event unachieved but reported	Mar 1, 2016	Apr 1, 2016	Resolved
cwa	Schedule Event reported late	Mar 1, 2016	—	Open
cwa	Schedule Event unachieved but reported	Sep 1, 2015	Oct 2, 2015	Resolved
cwa	Schedule Event unachieved but reported	Sep 1, 2015	Oct 2, 2015	Resolved
cwa	Schedule Event unachieved and not reported	Dec 1, 2014	Feb 27, 2015	Resolved
cwa	Schedule Event reported late	Dec 1, 2014	—	Open
cwa	Schedule Event unachieved but reported	Dec 1, 2014	Jan 1, 2015	Resolved
cwa	Schedule Event unachieved but reported	Sep 1, 2014	Oct 2, 2014	Resolved
cwa	Schedule Event unachieved but reported	Dec 1, 2013	Mar 2, 2014	Resolved
cwa	Schedule Event achieved late but reported	Feb 19, 2007	—	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
Oxygen, dissolved [DO]	DMR, Limited - Numeric Violation	3.57 mg/L	5.00	+29%	Aug 2022	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	1.12 mg/L	1.00	+12%	Jul 2021	Open
Solids, total suspended	DMR, Limited - Numeric Violation	60.00 mg/L	45.00	+33%	Dec 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	15.50 mg/L	13.90	+12%	Nov 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	8.42 mg/L	7.10	+19%	Nov 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	12.30 mg/L	11.90	+3%	Aug 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	4.15 mg/L	2.70	+54%	Aug 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.66 mg/L	2.80	+31%	Jun 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.90 mg/L	3.70	+5%	May 2016	Open
BOD, carbonaceous [5 day, 20 C]	DMR, Limited - Numeric Violation	49.33 mg/L	40.00	+23%	Oct 2015	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.48 mg/L	3.10	+12%	Sep 2015	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	5.40 mg/L	4.20	+29%	Apr 2015	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.

State CWA Non Penalty AO

Clean Water Act · Case IA-N00000475 · Jan 20, 1986

State CWA Non Penalty AO

Clean Water Act · Case IA-N00000573 · Dec 5, 1985

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