NORTH OLMSTED WWTP

Address

23775 MASTICK RD
NORTH OLMSTED, OH 44070
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County

CUYAHOGA County

Inspections

4 · last Sep 9, 2025

Total Penalties

$0 · last Jul 12, 1995

Registry ID

110000735394

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

0

Hazardous Waste (RCRA)
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 achieved late but reported	Dec 1, 2010	—	Open
cwa	Schedule Event achieved late but reported	Dec 1, 2010	—	Open
cwa	Permit Violations - Violation Specified in Comment	Dec 1, 1987	—	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
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	324.00 kg/d	318.00	+2%	Mar 2025	Open
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	14.40 mg/L	12.00	+20%	Nov 2024	Open
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	13.90 mg/L	12.00	+16%	Sep 2024	Open
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	12.50 mg/L	12.00	+4%	Jul 2024	Open
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	13.20 mg/L	12.00	+10%	Oct 2023	Open
Mercury, total low level	DMR, Limited - Numeric Violation	0.00 kg/d	0.00	+187%	May 2023	Open
Mercury, total low level	DMR, Limited - Numeric Violation	0.00 mg/L	0.00	+14%	May 2023	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	53.90 kg/d	39.70	+36%	Aug 2022	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	47.00 kg/d	42.40	+11%	Jun 2019	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	88.50 kg/d	63.60	+39%	Jun 2019	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	75.50 kg/d	63.60	+19%	Sep 2018	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	90.90 kg/d	63.60	+43%	May 2018	Open
Mercury, total low level	DMR, Limited - Numeric Violation	0.00 kg/d	0.00	+120%	Apr 2018	Open
Mercury, total low level	DMR, Limited - Numeric Violation	0.00 mg/L	0.00	+203%	Dec 2016	Open
Mercury, total low level	DMR, Limited - Numeric Violation	0.00 kg/d	0.00	+165%	Dec 2016	Open
Nitrogen, total [as N]	DMR, Limited - Numeric Violation	12.10 mg/L	12.00	+1%	Jun 2016	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	75.90 kg/d	63.60	+19%	May 2016	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	1.62 mg/L	1.50	+8%	May 2015	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	1.07 mg/L	1.00	+7%	May 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.

Civil Judicial Action

Clean Water Act · Case 05-1995-N033 · Jul 12, 1995

$175,000

Civil Judicial Action

Clean Water Act · Case OH-N00006505 · Jul 12, 1995

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