NPDES Amendment

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Why a Major Amendment?

An application for a major amendment of an existing permit is required if the modification results in one of the following: 

  • You are increasing the number of Disturbed Project Acreage by 10% (or more) of the original permitted area. 
  • You are adding additional point(s) of interest. 
  • You are constructing new/additional impervious surfaces that are not already controlled by your initially approved stormwater plan. 
  • You are submitting an additional phase not already covered under the initial permit. 
  • You are changing the E&S and/or PCSM design standards identified in the original application or NOI is considered a Major Amendment. For E&S BMPs, the design standards are contained in the E&S Manual; for PCSM BMPs, the design standards are identified in 25 Pa. Code § 102.8(g). 
Applicants are strongly encouraged to carefully read the FAQ for Chapter 102 Permit Amendments before submitting. You may contact ACCD to verify whether your submission is a Major/Minor Amendment.

Please carefully read Table 1 of the PAG-02 NOI Checklist. All pertinent items below, with changes highlighted or bolded, should be submitted for Major Amendments. 

  • Complete NOI 
    • NOI Checklist 
    • PNDI Review Receipt 
  • E&S Module 1 
    • Attachments 
    • E&S Plan Drawings 
  • PCSM Module 2 
    • Attachments 
    • PCSM Plan Drawings 
  • Municipal Form 3800-FM-BCW0271c 
    • Proof of Receipts (Acts 14, 67, 68, 127) 
    • County Form 3800-FM-BCW0271b 
    • Proof of Receipts (Acts 14, 67, 68, 127) 
  • PHMC Coordination Letter 
    • Individual Permits (10+ acres) 
    • General Information Form 
    • Antidegradation Module 3 
    • Riparian Buffer Module 4 (Individual Permits, if applicable) 

Major Amendments for General NPDES permits require a $500 administrative filing fee payable to ACCD CWF. Individual NPDES permits require a $1500 administrative filing fee payable to ACCD CWF for Major Amendments.

All 102 Major Amendments require a $100/disturbed acre fee payable to PACWF, rounded to nearest whole acre, for new disturbed acreage associated with the Major Amendment. 

ACCD assesses a baseline fee of $1,000 for General NPDES and $1500 for Individual NPDES Major Amendments. Additional disturbed acreage is assessed at $135/additional disturbed acre, and stormwater discharge points are assessed at $50 per stormwater discharge point. Green Infrastructure credits are available if the responses have changed from the initial submission. Expedited options are available.

All fees are nonrefundable.

Why a Minor Amendment?

An application for a minor amendment of an existing permit is required if the modification results in one of the following: 
  • You are increasing the number of Disturbed Project Acreage by less than 10% with a maximum of 2.4 acres of the original disturbed area. 
  • You are realigning/relocating the location of BMPs without changing calculations. 
  • You are not affecting rate, volume, or water quality. 
  • You are submitting a partial Notice of Termination. 
Applicants are strongly encouraged to carefully read the FAQ for Chapter 102 Permit Amendments before submitting. You may contact ACCD to verify whether your submission is a Major/Minor Amendment. 

Please carefully read Table 1 of the PAG-02 NOI Checklist. All pertinent items below should be submitted for Minor Amendments. 
  • Complete NOI 
    • NOI Checklist 
    • PNDI Review Receipt 
  • E&S Module 1 
    • Attachments 
    • E&S Plan Drawings 
  • PCSM Module 2 
    • Attachments 
    • PCSM Plan Drawings 
  • Municipal Form 3800-FM-BCW0271c 
    • Proof of Receipts (Acts 14, 67, 68, 127) 
    • County Form 3800-FM-BCW0271b 
    • Proof of Receipts (Acts 14, 67, 68, 127) 
  • PHMC Coordination Letter 
    • Individual Permits (10+ acres) 
    • General Information Form 
    • Antidegradation Module 3 
    • Riparian Buffer Module 4 (Individual Permits, if applicable) 
ACCD assesses a flat fee of $500 for Minor Amendments. Expedited review option is available for $1,500. 

Minor Amendments require a $100/disturbed acre fee payable to PACWF (PA Clean Water Fund), rounded to nearest whole acre, for new disturbed acreage associated with the Minor Amendment. 

All fees are nonrefundable. 

Submit an Application

Use forms below to submit a General or Individual NPDES Programs.

Submit a Minor Amendment
Submit a Major Amendment

Get Assistance with Permits

Get help submitting, uploading and applying for Chapter 102 and Chapter 105 permits.  

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