How to Fill Out the Pennsylvania DEP NPDES Construction Stormwater Permit (PAG-02, PAG-01 & Individual) + FAQs

The Pennsylvania DEP NPDES Construction Stormwater Permit is the water-pollution permit that almost every person, builder, or developer must get from the Pennsylvania Department of Environmental Protection before disturbing one acre or more of earth. Most projects file a Notice of Intent (NOI) for coverage under the PAG-02 General Permit, known by its form number 3800-PM-BCW0405. Smaller, simpler jobs may use the PAG-01 General Permit, while projects that drain to High Quality (HQ) or Exceptional Value (EV) waters must use the Individual NPDES Permit Application, form 3800-PM-BCW0408.

This permit exists because dirt is a pollutant. When rain hits a bare construction site, mud washes into streams, smothers fish habitat, and clogs drinking-water systems. Getting the form wrong can stall a project for months, since DEP and county conservation districts (CCDs) reject incomplete applications outright, and starting earth disturbance without an approved permit can trigger fines that exceed $10,000 per day under Pennsylvania’s Clean Streams Law.

Here is what you will learn in this guide:

• 📋 How to fill out the PAG-02 NOI line by line, plus PAG-01 and the Individual application
• 🗺️ How to use DEP’s eMapPA tool to find your receiving water’s classification before you file
• 🧾 The exact documents, modules, and fees you must gather before opening the form
• ⚠️ The field-level mistakes that get applications kicked back, and how to dodge them
• 🏛️ Where and how to file with your county conservation district or DEP regional office

What the Permit Is and Who Must File It

The NPDES Construction Stormwater Permit is Pennsylvania’s version of the federal Clean Water Act NPDES program, run by DEP under 25 Pa. Code Chapter 102. The permit covers the muddy water (stormwater) that runs off a site during and after building. It forces you to plan erosion and sediment (E&S) controls for construction and post-construction stormwater management (PCSM) BMPs for the finished site.

You must file if your project disturbs one acre or more of earth, whether that acre is all at once or part of a larger common plan of development. The DEP construction stormwater page confirms that builders, developers, municipalities, utilities, and homeowners doing large projects all fall under this rule. Agricultural plowing, timber harvesting, and routine road maintenance are carved out and follow different permits.

Three permit paths exist, and picking the wrong one wastes weeks. PAG-01 is a streamlined general permit for small construction with simple discharges. PAG-02 is the workhorse general permit most projects use. The Individual NPDES Permit is required when your stormwater discharges directly to special protection waters (HQ or EV), or when you are not eligible for a general permit.

The agency that receives your form is usually your county conservation district, which DEP delegates to review Chapter 102 permits in most counties. The statute that requires the permit is the Clean Streams Law, and the deadline that governs it is simple: the permit must be approved before you break ground. The penalty that follows non-compliance is steep, including daily civil penalties and stop-work orders.

Before You Start: Documents and Information You Need

Gather every item below before you open the form. A missing piece is the top reason a CCD marks an application “incomplete” and stops the clock, which delays your approval and your project. Use this pre-filing checklist.

• A complete E&S Plan with drawings. This shows your erosion controls during construction; without it the application is rejected as incomplete on day one.
• A complete PCSM Plan with drawings and narrative. This shows how the finished site manages stormwater volume, rate, and quality; missing it stalls the technical review.
• E&S Module 1 and PCSM Module 2. Per the DEP FAQ, these narrative templates are required for all new PAG-02 NOIs and Individual applications, and omitting them voids completeness.
• A current PNDI receipt from the PA Natural Diversity Inventory tool, which screens for threatened species; an expired or unresolved receipt halts review.
• DEP’s PCSM Spreadsheet (Quality Worksheet at minimum). The water-quality worksheet is mandatory, and leaving it out makes the stormwater analysis unreviewable.
• Your exact earth disturbance acreage, calculated from the plans, because the per-acre fee and eligibility both hinge on this number.
• The receiving water’s name and classification (existing and designated use), since this decides whether you can use PAG-02 or must file an Individual permit.
• County and Municipal Notification Forms (3800-FM-BCW0271b and c), which prove you told local governments; missing proof of notice is an automatic deficiency.
• The General Information, Compliance History, and Certification form (3800-PM-BCW0408b for the Individual permit), which captures past violations the agency cross-checks.
• Your filing fees in the correct amounts and payees, because checks made out to the wrong fund get returned and reset your timeline.

Take Maria Lopez, a developer planning a 3-acre subdivision. She pulls her PNDI receipt first, because if it flags a species she may need clearance letters that take weeks, and she would rather learn that before she pays any fee.

Where to Get the Form and How to Access It

All current forms live in DEP’s eLibrary, the official document warehouse. You can download the PAG-02 General Permit package and the Individual NPDES Permit Application directly. Always confirm the revision date printed on the form; the modern PAG-02 NOI is 3800-PM-BCW0405, revised 12/2019 or later, and using an older version can force a resubmission.

You can also reach every form, the modules, and the PCSM Spreadsheet from DEP’s main construction stormwater hub by selecting the E&S Resources section. The PCSM Spreadsheet updates over time, so download a fresh copy for each new project rather than reusing an old file.

The forms are fillable PDFs. You may type entries on screen or print and complete them by hand in black ink. Most conservation districts still expect a paper package with wet-ink signatures plus collated plan sets, though a growing number accept electronic submission through DEP’s GreenPort/ePermitting environment.

Check your specific county conservation district’s website before assembling copies, because districts set their own number of required plan-set copies and their own fee amounts. For example, Centre County spells out exactly which checks go to the county Clean Water Fund and which go to the Commonwealth.

Step-by-Step: How to Fill Out the PAG-02 NOI Line by Line

The PAG-02 Notice of Intent is the form most readers will complete, so this walkthrough is the spine of the guide. Complete every section in order, and use the exact field names printed on the form. Each field below tells you what it asks, how to answer, an example, an edge case, a common mistake with its result, and a misconception to drop.

Page 1: Application Type (New, Renewal, Major Amendment, Minor Amendment)

This top box asks what kind of filing this is. Check New if the project has never had coverage, Renewal to continue an existing permit, or Major or Minor Amendment to change an active permit.

To answer, check exactly one box. For a brand-new subdivision, Maria Lopez checks “New.”

The edge case: if you are continuing an existing project past its expiration, you check Renewal and submit at least 180 days before the expiration date, as the DEP FAQ explains.

A common mistake is checking New for a project that already has coverage, which creates a duplicate file and confuses the reviewer, delaying both records.

The misconception to drop: people think coverage renews automatically, but under the 2019 permit it does not, so you must actively file the renewal NOI.

General Information Section

This section asks for the project name, the site’s physical location, county, and municipality. It identifies your project in DEP’s database.

Enter the legal project name and the full street address or, for raw land, a clear location description with the nearest road and GPS coordinates. Marcus Reed, a contractor, writes “Reed Commercial Plaza, 1200 Industrial Drive, Bellefonte, Centre County, Spring Township.”

The edge case: a linear project like a pipeline crosses many parcels, so describe the start and end points and the route rather than a single address.

A common mistake is naming a different project than the one on your plan drawings, which makes the reviewer unable to match documents and triggers a deficiency letter.

The misconception: filers assume a mailing address is enough, but DEP needs the physical site location to map your receiving waters.

Applicant Information Section

This asks who the applicant (permittee) is, including the legal name, mailing address, and contact details of the person or company responsible for the permit. The applicant is legally on the hook for compliance.

Enter the full legal entity name exactly as registered, not a nickname or “doing business as” alone. A developer writes “Lopez Homes LLC,” its EIN, and a responsible-person contact.

The edge case: if a project has more than one operator, the others join as co-permittees later using the Co-Permittee Acknowledgement Form (3800-FM-BCW0271a).

A common mistake is listing the engineer or contractor as the applicant, which puts liability on the wrong party and forces a transfer later.

The misconception: many think the landowner must always be the permittee, but the operator who controls construction can be the applicant.

Eligibility Information Section

This section walks through PAG-02’s eligibility criteria, asking yes/no questions about your discharges, including whether you discharge to impaired or special protection waters. It confirms you qualify for the general permit at all.

Answer each criterion honestly based on your receiving-water research. Marcus checks that his discharge does not reach HQ or EV waters, confirming PAG-02 eligibility.

The edge case: if you discharge directly to HQ or EV waters, you are not eligible for PAG-02 and must file the Individual application instead, per 25 Pa. Code Chapter 102.

A common mistake is guessing the water classification, which leads to filing the wrong permit and losing the entire review period.

The misconception: filers assume a small project is automatically eligible, but the receiving water, not project size, drives eligibility.

Stormwater Discharge Information Section (Including Question 6)

This section asks you to describe your discharge points and, in Question 6, identify any post-construction discharge points releasing to impaired waters and the BMPs used. It links your plans to water-quality requirements.

List each outfall and its receiving water, and in Question 6 describe the non-discharge alternatives or ABACT BMPs you will use for impaired waters, as the DEP FAQ directs. An applicant in the Chesapeake Bay watershed lists ABACT perimeter controls because those waters carry a TMDL.

The edge case: every project in the Chesapeake Bay watershed (Watershed IDs 04–13) must use non-discharge alternatives or ABACT BMPs even without local impairment.

A common mistake is leaving Question 6 blank when discharging to impaired water, which makes the application incomplete.

The misconception: people think ABACT only applies near the stream, but it generally must be applied site-wide.

Earth Disturbance Information Section

This asks for the total acres of earth disturbance, both the total project area and the area disturbed. It sets your per-acre fee and confirms the one-acre threshold.

Enter the exact disturbed acreage from your E&S plan, rounded as the form directs. Maria enters 3.0 acres of disturbance on a 4.2-acre parcel.

The edge case: phased projects must count the full common plan of development, not just the current phase, or you understate the acreage.

A common mistake is reporting only the building footprint instead of all graded, stockpiled, and access areas, which underpays the fee and triggers a correction.

The misconception: filers think disturbance means only digging, but clearing, grading, and stockpiling all count.

Compliance History Section

This section asks whether the applicant or related parties have past environmental violations. DEP uses it to flag chronic non-compliance before issuing coverage.

Answer truthfully and attach explanations for any “yes.” A contractor with one resolved past violation discloses it and notes the corrective action taken.

The edge case: violations by parent companies or affiliated operators may need disclosure, not just the applicant entity.

A common mistake is hiding a known violation, which DEP discovers in its own records and which can lead to denial for falsification.

The misconception: people fear any past violation means denial, but disclosed and resolved issues rarely block coverage on their own.

Certification and Signature Block

This final block requires the applicant’s signature certifying, under penalty of law, that the information is true and complete. It makes the whole package legally binding.

Sign in wet ink (or valid e-signature) as the responsible official, and date it MM/DD/YYYY. Maria Lopez, managing member, signs and dates 05/28/2026.

The edge case: a corporation needs a principal executive officer or authorized agent to sign, not just any employee.

A common mistake is an unsigned or undated certification, which is an automatic rejection no matter how perfect the rest is.

The misconception: filers think an engineer’s seal replaces the applicant signature, but both the licensed-professional seal on plans and the applicant certification are required.

Filling Out PAG-01 and the Individual NPDES Application

PAG-01 is a shorter general permit for small construction with straightforward discharges, and its NOI follows the same logic as PAG-02 with fewer modules. You still provide project, applicant, discharge, and acreage information, and you still certify and sign. Use PAG-01 only when your project meets its narrower eligibility and your discharges are simple.

The Individual NPDES Permit Application (3800-PM-BCW0408) is required when you discharge directly to HQ or EV waters or are otherwise ineligible for a general permit. It includes everything in PAG-02 plus Antidegradation Analysis Module 3 (3800-PM-BCW0406c) and, where a project sits within 150 feet of HQ or EV waters, Riparian Buffer Module 4. Renewal applicants use the separate General Information, Compliance History, and Certification form (3800-PM-BCW0408b).

Module 3 forces an antidegradation analysis: you must first evaluate non-discharge alternatives and may only choose ABACT BMPs if those alternatives are shown to be not environmentally sound and cost effective, per the DEP FAQ. Janet Cho, engineering an 8-acre commercial site draining to an HQ-CWF stream, completes Module 3 in full because her discharge reaches special protection waters. Skipping the non-discharge evaluation when special protection waters are involved makes the analysis fatally incomplete.

Three Filled-Out Examples Using Real Scenarios

The tables below follow three named filers through the most important sections of their forms. Each shows what the filer actually enters.

Scenario 1 — Maria Lopez, small homebuilder, 3-acre subdivision, standard watershed (PAG-02 NOI):

Form Section	What Maria Enters
Application Type	New
Project Name	Lopez Homes Phase 1
Applicant	Lopez Homes LLC (permittee)
Eligibility	Confirms no HQ/EV discharge, qualifies for PAG-02
Receiving Water	Spring Run (CWF), not impaired
Question 6 (Impaired Waters)	Left blank — no impaired discharge
Earth Disturbance	3.0 acres disturbed, 4.2-acre site
Modules Attached	E&S Module 1 + PCSM Module 2
Certification	Signed and dated 05/28/2026

Scenario 2 — Janet Cho, commercial developer, 8-acre site near an HQ stream (Individual NPDES Application):

Form Section	What Janet Enters
Application Type	New — Individual NPDES
Project Name	Cho Commerce Center
Applicant	Cho Development Group Inc.
Receiving Water	Trout Creek (HQ-CWF)
Reason for Individual Permit	Direct discharge to special protection waters
Module 3 (Antidegradation)	Completed — non-discharge alternatives evaluated first
Module 4 (Riparian Buffer)	Completed — site within 150 ft of HQ water
Earth Disturbance	8.0 acres disturbed
Certification	Signed by principal officer

Scenario 3 — Township of Marcus Reed, municipal road and utility project, Chesapeake Bay watershed (PAG-02 NOI):

Form Section	What the Township Enters
Application Type	New
Project Name	Industrial Drive Reconstruction
Applicant	Spring Township (operator/permittee)
Watershed	Watershed ID 07 — Chesapeake Bay
Question 6 (Impaired Waters)	Lists ABACT perimeter BMPs and construction entrances
BMP Standard	Non-discharge alternatives / ABACT site-wide
Earth Disturbance	5.5 acres along the corridor
Modules Attached	E&S Module 1 + PCSM Module 2
Certification	Signed by township manager

How to File the Completed Form

Most applicants file with their county conservation district, which reviews Chapter 102 permits on DEP’s behalf in delegated counties. In non-delegated counties or for some Individual permits, you file with the appropriate DEP regional office. Confirm your reviewer before mailing, because sending the package to the wrong office wastes days.

By mail or in person, send the complete collated package—NOI or application, all modules, E&S and PCSM plan sets, PNDI receipt, notification forms, and fees—to the address your CCD lists, such as the instructions on the Centre County NPDES page. Keep a date-stamped copy and your mailing receipt or hand-delivery signature as proof of filing.

Fees come in two parts, and both must be correct. DEP’s statewide filing fee for construction stormwater is $500, as confirmed in the 2021 fee changes, and a separate disturbed-acreage fee (commonly $100 per acre) is paid to the Commonwealth, while a county review fee goes to the local Clean Water Fund. In Centre County, for example, the per-acre fee check is made out to the Commonwealth of PA Clean Water Fund and the administrative fee to the Centre County Clean Water Fund.

You may also be able to file electronically through DEP’s GreenPort/ePermitting environment where your county participates. Accepted payment is generally by check or money order to the named funds; confirm whether your CCD accepts electronic payment. Expect a completeness review within roughly two to three weeks, followed by a technical review, so plan for several months overall before you can break ground.

What Happens After You File

First comes an administrative completeness review. The CCD or DEP checks that every required item is present; if anything is missing, you get a deficiency letter and the review clock pauses until you cure it. A clean package keeps the clock running and speeds approval.

Next comes the technical review, where reviewers examine your E&S and PCSM plans, modules, and stormwater calculations against Chapter 102 standards. They may send technical deficiency letters asking for revisions, and you must respond within the stated window or risk denial. Janet Cho’s Module 3 antidegradation analysis draws extra scrutiny because her site touches HQ waters.

When approved, you receive an authorization to discharge under PAG-02 (or your Individual permit), valid only until the statewide permit’s expiration date. You must then follow the permit: train site personnel, keep plans on site, conduct Visual Site Inspections using form 3800-FM-BCW0271d after every 0.25-inch rainfall, and file an Annual Report (3800-PM-BCW0405e). When construction ends and the site is permanently stabilized, you file a Notice of Termination with proof of any recorded PCSM instrument.

Mistakes to Avoid When Filling Out the Form

• Starting earth disturbance before approval. This violates the Clean Streams Law and can bring daily penalties and a stop-work order.
• Using an outdated form version. A pre-12/2019 PAG-02 NOI for a new project gets returned for resubmission on the current form.
• Omitting E&S Module 1 or PCSM Module 2. Missing modules make a new application incomplete and stop the review clock.
• Guessing the receiving water’s classification. A wrong guess sends you down the wrong permit path and forfeits weeks of review time.
• Leaving Question 6 blank for impaired waters. This omits required BMP information and triggers a deficiency letter.
• Understating earth disturbance acreage. It underpays the fee and forces a correction that delays issuance.
• Listing the engineer or contractor as applicant. It puts liability on the wrong party and forces a later permit transfer.
• Filing an expired or unresolved PNDI receipt. It leaves species impacts unaddressed and halts technical review.
• Skipping the PCSM Spreadsheet Quality Worksheet. The water-quality analysis becomes unreviewable and the package is rejected.
• Forgetting the County and Municipal Notification Forms. Without proof of local notice, the application is automatically deficient.
• Making fee checks out to the wrong fund. Misdirected checks get returned and reset your timeline.
• Submitting an unsigned or undated certification. This is an instant rejection no matter how complete the rest is.

Do’s and Don’ts

Do:

• Do research your receiving water in eMapPA first, because its classification decides which permit you file.
• Do download fresh forms and the PCSM Spreadsheet for every project, since DEP updates them and stale files cause rejections.
• Do call your county conservation district before assembling copies, because each district sets its own copy counts and fees.
• Do disclose past violations honestly, because DEP cross-checks its records and falsification can mean denial.
• Do keep dated proof of filing and payment, since it protects you if a package is lost or questioned.
• Do match your project name across every document, so reviewers can link your plans, modules, and forms.

Don’t:

• Don’t break ground before approval, because the penalties dwarf any time you might save.
• Don’t guess your earth disturbance acreage, since an undercount triggers fee corrections and delay.
• Don’t reuse an old PNDI receipt, because an expired clearance stops the technical review.
• Don’t pick PAG-02 for an HQ or EV discharge, because you are ineligible and must file the Individual permit.
• Don’t leave any “yes/no” eligibility box blank, as a blank reads as incomplete.
• Don’t sign blank or unfinished pages, because certifying inaccurate information carries legal penalty.

Pros and Cons of Filing on Your Own vs. With a Professional

Filing on your own (pros):

• Lower upfront cost, because you avoid consultant fees on a simple, small project.
• Direct control of your timeline, since you are not waiting on a third party’s schedule.
• Better understanding of your own permit obligations, which helps during inspections.
• Fine for very simple PAG-01 jobs, where discharges and BMPs are straightforward.
• Faster for minor amendments, where you already know the project intimately.

Filing with a professional (cons of going solo / pros of help):

• A licensed engineer must seal the E&S and PCSM plans anyway, so most projects need professional input regardless.
• Consultants know the eMapPA classification process cold, reducing the risk of choosing the wrong permit.
• They prepare the PCSM Spreadsheet and modules correctly, avoiding the technical deficiencies that cause delay.
• They handle antidegradation Module 3 analyses, which are difficult to complete properly without experience.
• Their fees can be far cheaper than the cost of a stalled project, since each deficiency letter adds weeks.

PAG-02 General Permit vs. Individual NPDES Permit

Feature	What Differs
Form number	PAG-02 NOI is 3800-PM-BCW0405; Individual is 3800-PM-BCW0408
When required	PAG-02 for standard discharges; Individual for direct HQ/EV discharges or ineligibility
Modules	Both need Modules 1 and 2; only Individual may need Modules 3 and 4
Antidegradation analysis	Not on PAG-02; required via Module 3 on the Individual permit
Review effort	PAG-02 is faster; Individual takes longer due to added analysis
Flexibility	Individual allows custom alternatives PAG-02 does not prompt

FAQs

Do I need this permit if I disturb less than one acre?

No. A standalone project under one acre usually needs no NPDES permit, though local E&S rules still apply and you must count the full common plan of development.

Do I file PAG-02 or an Individual permit for a stream classified HQ or EV?

No to PAG-02. Direct discharges to High Quality or Exceptional Value waters make you ineligible for the general permit, so you must file the Individual application with Module 3.

Do I write the engineer’s name as the applicant in the Applicant Information section?

No. Enter the operator or owner responsible for compliance as the permittee; the engineer only seals the plans, and naming them forces a costly transfer later.

Do I leave Question 6 blank if my project does not reach impaired waters?

Yes. If no post-construction discharge point releases to impaired surface waters, Question 6 stays blank; fill it only when you discharge to impaired waters.

Do I count only the building footprint in the Earth Disturbance section?

No. Count all graded, cleared, stockpiled, and access areas, because every disturbed area counts toward acreage, fees, and the one-acre threshold.

Do I need a PNDI receipt before filing?

Yes. A current PNDI receipt is required, and an expired or unresolved one stops the technical review until you clear it.

Do I have to use DEP’s PCSM Spreadsheet?

Yes, for the water-quality component at minimum; the Quality Worksheet is mandatory, while Volume and Rate worksheets are optional if you document alternatives.

Do Chesapeake Bay watershed projects need ABACT BMPs even without local impairment?

Yes. Any project in Watershed IDs 04–13 must use non-discharge alternatives or ABACT BMPs because the Chesapeake Bay carries an EPA-approved TMDL.

Do I file with DEP or my county conservation district?

Yes to the conservation district in most delegated counties; file with the DEP regional office only where the county is not delegated or for certain Individual permits.

Do I owe both a state fee and a per-acre fee?

Yes. Expect a $500 DEP filing fee plus a separate disturbed-acreage fee (commonly $100 per acre) and a county review fee, with each check to the correct fund.

Do I need to sign the form myself if my engineer sealed the plans?

Yes. The applicant certification needs the responsible official’s signature; the engineer’s seal on plans does not replace it, and an unsigned form is rejected.

Do I have to renew my coverage, or does it renew automatically?

No, it does not renew automatically under the 2019 permit. You must file a renewal NOI at least 180 days before your coverage expires to keep discharging.

Do amendments require the full application package?

Yes for major amendments using current forms; minor amendments need at least the General Information, Applicant, Eligibility, Compliance History, and Certification sections updated.

Do I file a Notice of Termination when construction ends?

Yes. Once the site is permanently stabilized, file a Notice of Termination with proof of any recorded PCSM operation and maintenance instrument to close out coverage.