NPDES - General Permit

The National Pollutant Discharge Elimination System General Permit is required for project sites to lawfully discharge stormwater to the surface waters of the Commonwealth when the associated construction activities equal or exceed one (1.0) acre of earth disturbance.

NPDES - Individual Permit

NPDES Individual Permits are similar to General Permits except they are required when construction activities of an acre or more earth disturbance occur in special protection watersheds, activities prohibited from coverage under 25 PA Code Chapter 92a, and activities otherwise listed in the NPDES General Permit as ineligible.

ESCGP Permit

The Erosion and Sediment Control General Permit is required when constructing gas transmission lines with five (5.0) or more acres of earth disturbance. The application process for the ESCGP permit requires a completed Notice of Intent and any other required permits.

Non-Permitted Plan Approvals

Per 25 PA Code 102.4 (b)(2)(i), non-permitted E&SC plan approvals are required for projects with earth disturbing activities between 5,000 sqft and 0.99 acres. Please consult with the municipality where the development is occurring prior to contacting the District to verify where to send the plans for review.

Timber Harvesting Operations

All Timber Harvesting Operations occurring in Allegheny County require an Erosion and Sediment Control Plan. For operations disturbing less than 25.0 acres, a permit is not required. However, an E&SC Permit is required for operations with 25.0 acres or more of earth disturbance activity.

Notice of Intent

A Notice of Intent is the initial and required document for NPDES permit applications. Typically, most delays in processing NPDES permit applications occur during the completeness review of the NOI, so please ensure the document is filled out correctly and all supplemental information is included.

Co-Permittee / Permit Transfer

A Co-Permittee or Permit Transfer form is required when adding a new co-permittee or transferring the permit to another entity. This process indicates the sharing of permit responsibility, coverage, and liability. Please complete and file this form 30 days prior to any permittee changes on a project.

Notice of Termination

The Notice of Termination form is submitted once the following have been achieved (per 25 PA Code §102.7): permanent stabilization of earth disturbance activities, removal of erosion and sediment control best management practices, and implementation of post construction stormwater management BMPs.

Co-permittee Liability Release Form

Permittees or Co-permittees, presently covered under a permit, may submit this release form to the Department of Environmental Protection or ACCDPA when the co-permittee is no longer an operator of the construction activity at an unstabilized site.

Visual Inspection Checklist

Per the conditions set forth in NPDES permits, all BMPs are to be inspected on a weekly basis and after each runoff event. The checklist and inspection report provide the framework for permit holder(s) to perform such an inspection.

Instrument Filing Sample

A sample of a Declaration of Restrictions and Covenants Instrument. Use of this template is not mandatory but is strongly recommended! The language serves as acceptable baseline for terms and conditions.

New Property Owner Form - Sample

A sample of the 'New Property Owner Post-Construction Stormwater Management Best Management Practice(s) Notification and Operation and Maintenance Agreement' used to notify of long-term O&M requirements.

E&SC Program Manual

The purpose of this PA DEP manual is to inform those engaged in earth disturbance activities and the preparation of E&SC plans on how to comply with regulations found in 25 PA Code Chapter 102.

PA Natural Diversity Inventory

The DCNR Conservation Explorer tool provides conservation information on biological diversity, protected lands, streams and other natural resources for planning purposes. The tool also allows users to screen a project area for potential impacts to threatened, endangered, and special concern species.

FEMA Flood Map Service Center

The FEMA Flood Map Service Center (MSC) is the official public source for flood hazard information produced in support of the National Flood Insurance Program (NFIP). Use the MSC to find your official flood map, access a range of other flood hazard products, and take advantage of tools for better understanding flood risk.

National Wetlands Inventory Mapper

The Wetlands mapper is designed to deliver easy-to-use, map like views of America’s Wetland resources. It integrates digital map data along with other resource information to produce current information on the status, extent, characteristics and functions of wetlands, riparian, and deepwater habitats.