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Swppp

Draft Construction SWPPPs in Minutes, Not Hours

12 minutes with CaseMark

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Swppp

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Workflow

Swppp

Overview

CaseMark's SWPPP drafting tool uses AI to generate comprehensive Stormwater Pollution Prevention Plans for construction projects disturbing one or more acres. The tool produces fully structured plans covering site characterization, BMP selection, inspection schedules, and operator certifications compliant with 40 CFR Part 122, the EPA Construction General Permit, and state NPDES requirements.

Drafting a compliant SWPPP is a time-intensive process requiring careful cross-referencing of federal CGP requirements, state NPDES provisions, site-specific environmental data, and engineering best practices. Environmental consultants and construction firms spend days assembling site descriptions, selecting appropriate BMPs, and ensuring every certification and regulatory element is properly addressed—with costly consequences if anything is missed.

CaseMark automates the heavy lifting of SWPPP preparation by analyzing your project details, site characterization data, and regulatory context to produce a comprehensive, permit-ready draft. The AI structures every required section—from receiving waters tables to BMP specifications to 40 CFR 122.22 certification language—so your team can focus on engineering review and site-specific refinements rather than document assembly.

How it works

  1. 1. Upload your project details, site plans, soil reports, and existing permits

  2. 2. AI analyzes site characteristics, receiving waters, and regulatory requirements

  3. 3. Review the generated SWPPP with BMP selections, inspection schedules, and certification language

  4. 4. Export the final plan in your preferred format (DOCX, PDF) for PE review and submission

What you get

  • Cover Page & Certifications

  • Site Description & Receiving Waters Analysis

  • Best Management Practices (BMPs) Selection & Specifications

  • Inspection Schedules & Recordkeeping Requirements

  • Operator Certification & Compliance Documentation

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 and drainage analysis

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

  • Creates inspection schedules and recordkeeping frameworks per CGP requirements

  • Includes endangered species and historic preservation eligibility determinations

  • Outputs operator certification and PE seal placeholders as required by state

Required documents

  • Project Details & Operator Information

    Project name, location, disturbance acreage, timeline, and operator identification with contact information

    .pdf, .docx, .xlsx

  • Site Characterization Data

    Soil survey reports, topographic data, drainage patterns, receiving waters information, and environmental feature assessments

    .pdf, .docx, .xlsx

  • Site Plans or Grading Plans

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

    .pdf, .dwg, .png

Supporting documents

  • Existing NPDES Permits

    Current NPDES permit numbers, state CGP authorizations, or MS4 requirements applicable to the project

    .pdf, .docx

  • Environmental Assessments

    Endangered species habitat surveys, historic property assessments, or wetland delineation reports for the project area

    .pdf, .docx

  • NRCS Soil Survey Data

    Web Soil Survey reports or custom soil data for the project site to inform BMP design specifications

    .pdf, .xlsx

Why teams use it

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

Ensure consistent inclusion of all CGP-required elements including certification language and receiving waters analysis

Generate tailored BMP recommendations based on site-specific soil, topography, and drainage conditions

Maintain audit-ready documentation with structured inspection schedules and 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 current EPA Construction General Permit (CGP), and applicable state NPDES requirements. The output includes all required certification language, BMP categories, and inspection frameworks mandated by federal regulations.

Can it handle state-specific NPDES requirements?

CaseMark incorporates state-level CGP and MS4 requirements when you provide your existing permits and state-specific guidance. The AI adapts certification language, PE seal requirements, and BMP specifications to align with your jurisdiction's stormwater program.

How does the AI select appropriate BMPs for my project?

CaseMark analyzes your site characterization data—soil types, topography, drainage patterns, and receiving water sensitivity—to recommend erosion controls, sediment controls, and pollution prevention measures. Each BMP includes location, installation timing, design specifications, and maintenance requirements.

What if my project discharges to 303(d)-listed or TMDL waters?

CaseMark identifies impaired receiving waters from your input documents and generates enhanced BMP requirements and monitoring provisions consistent with TMDL waste load allocations. The receiving waters table clearly flags 303(d) and TMDL status for each discharge point.

Do I still need a Professional Engineer to review the SWPPP?

CaseMark produces a comprehensive draft SWPPP that significantly reduces drafting time, but it includes PE seal placeholders where required by state law. The generated plan is designed to be reviewed, sealed, and signed by a qualified professional before submission to the permitting authority.

Can I update the SWPPP as my project phases change?

Absolutely. CaseMark allows you to regenerate or revise sections as your project evolves—new disturbance areas, phase transitions, or BMP modifications. This ensures your SWPPP remains a living document that reflects current site conditions as required by the CGP.

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