TRAPPE WWTP

Address

4110 HENNISSEE LANE
TRAPPE, MD 21673
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County

TALBOT County

Inspections

6 · last Jul 29, 2025

Total Penalties

$0

Registry ID

110009916172

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

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	Monitoring Violations - No Flow Measurement Device	Aug 25, 2014	—	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
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.85 mg/L	0.30	+183%	Nov 2025	Resolved
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	1.35 mg/L	0.45	+200%	Nov 2025	Resolved
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	1.00 mg/L	0.45	+122%	Oct 2025	Resolved
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.44 kg/d	0.34	+31%	Feb 2024	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.36 mg/L	0.30	+20%	Feb 2024	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.65 mg/L	0.45	+44%	Feb 2024	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.60 mg/L	0.45	+33%	Feb 2023	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.75 mg/L	0.45	+67%	Oct 2022	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.35 mg/L	0.30	+17%	Oct 2022	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.48 mg/L	0.45	+7%	Sep 2022	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.60 mg/L	2.70	+33%	Apr 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	13.70 mg/L	10.10	+36%	Mar 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	6.17 kg/d	2.04	+202%	Mar 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	9.30 mg/L	2.70	+244%	Mar 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	7.13 kg/d	2.04	+249%	Feb 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	8.60 mg/L	2.70	+219%	Feb 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	8.72 kg/d	7.63	+14%	Feb 2021	Resolved
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	3.40 mg/L	1.80	+89%	Aug 2018	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	1.50 kg/d	1.36	+10%	Aug 2018	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	8.60 mg/L	4.40	+95%	Feb 2017	Open
Nitrogen, ammonia total [as N]	DMR, Limited - Numeric Violation	7.13 kg/d	3.31	+115%	Feb 2017	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	1.12 mg/L	0.45	+149%	Jan 2016	Open
Phosphorus, total [as P]	DMR, Limited - Numeric Violation	0.38 kg/d	0.34	+12%	Jan 2016	Open

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