How much wastewater does Trappe WWTP treat?

Trappe WWTP treats an average of 0.06 MGD and is permitted for a design flow of 0.2 MGD.

What treatment technology does Trappe WWTP use?

Klarifi has identified aerated lagoons, uncovered lagoons at the Trappe facility.

What is the NPDES permit for Trappe WWTP?

The facility discharges under NPDES permit MD0020486, currently expired, expiring August 2024.

Is Trappe WWTP in compliance?

Discharge monitoring reports show 28 violations at Trappe WWTP in the last three years, 9 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Trappe WWTP and how do I contact them?

Trappe WWTP is a publicly owned treatment works in Trappe, Maryland. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Trappe WWTP

Trappe, MD · Talbot County · Publicly Owned Treatment Works

Average flow: 0.06 MGD

Design flow: 0.2 MGD

NPDES permit: MD0020486; Expired

Permit expires: August 2024

Population served: 1,281; CWNS 2022

Trappe WWTP is a publicly owned wastewater treatment works in Trappe, Talbot County, Maryland treating an average of 0.06 million gallons per day against a permitted design capacity of 0.2 MGD, serving about 1,281 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit MD0020486 (expired), which expires in August 2024, with 28 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Aerated lagoons

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Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 28

Effluent violations: 9

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Trappe WWTP.

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Nearby wastewater treatment plants in Maryland

Oxford WWTP

Oxford · 6 mi away

0.11 MGD

Easton WWTP

Easton · 6 mi away

2.02 MGD

Twin Cities WWTP

Secretary · 7 mi away

0.13 MGD

Preston WWTP

Preston · 9 mi away

0.03 MGD

St. Michael'S WWTP

Saint Michaels · 11 mi away

0.29 MGD

Talbot County Region V WWTP

Tilghman · 15 mi away

0.11 MGD

Federalsburg WWTP

Federalsburg · 16 mi away

0.21 MGD

Vienna WWTP

Vienna · 18 mi away

0.05 MGD

Trappe WWTP: frequently asked questions

Sources and methodology

Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.

Data refreshed September 11, 2026; facility record last updated March 12, 2025.

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