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Swppp

Draft Construction SWPPPs in Minutes, Not Hours

12 minutes with CaseMark

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Upload your documents and get a finished work product in minutes. New accounts get $5 free to run their first skill.

12 minutes with CaseMark

What you'll need

  • Project Details & Site Characterization
  • Site Plans or Grading Plans
  • Existing Permits & Regulatory Documents

SOC 2 Type II · HIPAA compliant · $5 free credit

Workflow

Overview

CaseMark's SWPPP generator uses AI to draft comprehensive Stormwater Pollution Prevention Plans for construction projects requiring NPDES permit coverage. The tool produces fully structured plans covering site characterization, BMP selection, inspection schedules, recordkeeping frameworks, and operator certifications compliant with 40 CFR Part 122 and the EPA Construction General Permit.

Drafting a compliant SWPPP is a time-intensive process that requires cross-referencing federal CGP requirements, state NPDES regulations, site-specific conditions, and dozens of BMP design standards. Environmental consultants and construction firms spend hours assembling these documents manually, risking omissions that can lead to permit violations and enforcement actions.

CaseMark automates the heavy lifting of SWPPP preparation by analyzing your project data against EPA CGP and state NPDES requirements to produce a comprehensive, structured plan. The AI ensures every required element is addressed—from 40 CFR 122.22 certification language to site-specific BMP selections—so you can focus on engineering judgment rather than document assembly.

How it works

  1. 1. Upload your project details, site characterization data, and existing permits

  2. 2. AI analyzes site conditions and regulatory requirements to draft a compliant SWPPP

  3. 3. Review and customize BMP selections, inspection schedules, and certification language

  4. 4. Export the finished SWPPP in your preferred format (DOCX, PDF)

What you get

  • Cover Page & Certifications

  • Site Description & Receiving Waters Table

  • Best Management Practices (BMPs)

  • Inspection & Monitoring Schedule

  • Recordkeeping & Documentation Framework

  • Operator Certification & Signature Blocks

What it handles

  • Generates cover page with full 40 CFR 122.22 certification language and signature blocks

  • Produces detailed site description with receiving waters tables, soil data, and drainage analysis

  • Organizes BMPs into erosion, sediment, and pollution prevention categories with design specs

  • Creates inspection schedules and recordkeeping frameworks per EPA CGP requirements

  • Addresses endangered species and historic preservation eligibility determinations

  • Includes operator identification and PE seal requirements by state

Required documents

  • Project Details & Site Characterization

    Project name, location, acreage, timeline, soil types, topography, drainage patterns, and receiving water information

    .pdf, .docx, .xlsx

  • Site Plans or Grading Plans

    Construction site plans showing proposed grading, drainage features, and disturbance boundaries

    .pdf, .dwg, .png

  • Existing Permits & Regulatory Documents

    NPDES permit numbers, state CGP authorization, MS4 requirements, and any prior environmental assessments

    .pdf, .docx

Supporting documents

  • NRCS Soil Survey Data

    Web Soil Survey reports detailing soil types and hydrologic soil groups for the project area

    .pdf, .xlsx

  • Endangered Species & Historic Preservation Reports

    ESA eligibility determinations, USFWS consultation letters, or NHPA Section 106 reviews

    .pdf, .docx

  • Previous SWPPP or Erosion Control Plans

    Prior stormwater plans for the site or similar projects to inform BMP selection and plan structure

    .pdf, .docx

Why teams use it

Reduce SWPPP drafting time from days to minutes while maintaining regulatory compliance

Ensure consistent inclusion of all EPA CGP-required elements including certification language and BMP categories

Automatically generate receiving waters tables with 303(d) and TMDL analysis

Produce inspection-ready documentation with proper recordkeeping frameworks

Questions

Does the SWPPP meet EPA Construction General Permit requirements?

Yes. CaseMark generates SWPPPs structured to comply with 40 CFR Part 122, the EPA Construction General Permit (CGP), and applicable state NPDES requirements. The output includes all required certification language, BMP categories, and inspection frameworks mandated by the Clean Water Act.

Can I customize the BMP selections for my specific site conditions?

Absolutely. CaseMark drafts BMP recommendations based on your site characterization data, including soil types, topography, and receiving water sensitivity. You can review and modify every BMP selection, design specification, and maintenance requirement before finalizing the plan.

Does it handle state-specific NPDES requirements?

CaseMark incorporates state-level CGP and MS4 requirements when you provide your existing permits and state-specific regulatory documents. The AI adapts certification language, PE seal requirements, and additional BMP standards to match your jurisdiction.

What project information do I need to get started?

At minimum, you need project name and location, total disturbance acreage, operator identification, soil types, drainage patterns, receiving water information, and any existing NPDES permit numbers. Site plans and grading plans significantly improve the output quality.

How does CaseMark handle 303(d) listed waters and TMDL requirements?

CaseMark generates a receiving waters table that identifies 303(d) listed impairments and applicable TMDLs, then tailors BMP selections and monitoring requirements to address those specific pollutant concerns as required by the CGP.

Can I use this for projects disturbing less than one acre?

While the tool is optimized for projects disturbing one or more acres that require CGP coverage, CaseMark can also generate stormwater plans for smaller projects that are part of a larger common plan of development or that require coverage under state or local requirements.

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