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NPDES Permit Application

Draft NPDES Permit Applications in Minutes, Not Days

18 minutes with CaseMark

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Workflow

NPDES Permit Application

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Workflow

NPDES Permit Application

Overview

Preparing NPDES permit applications requires gathering technical data from multiple sources, cross-referencing EPA regulations, and ensuring compliance with state-specific requirements. Environmental attorneys and paralegals spend 6-8 hours manually extracting facility information, compiling discharge data, and formatting applications to meet regulatory standards.

NPDES permit applications require extensive technical documentation, discharge characterization data, treatment system specifications, and regulatory compliance analysis across multiple federal and state requirements. Environmental attorneys and compliance professionals spend 20-30 hours gathering facility data, analyzing effluent limitations, preparing water quality assessments, and assembling comprehensive application packages that satisfy EPA and state permitting authorities.

CaseMark automates NPDES permit application drafting by analyzing your facility documents, discharge monitoring data, and treatment system specifications to generate complete applications with discharge characterization, effluent limitation analysis, monitoring programs, and all required certifications. The platform ensures compliance with Clean Water Act requirements, applicable effluent guidelines, and state-specific regulations while organizing supporting documentation for immediate submission.

How it works

  1. 1. Upload your documents

  2. 2. AI analyzes and extracts key information

  3. 3. Review and customize the generated content

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

What you get

  • Applicant and Facility Information

  • Discharge Description

  • Treatment and Control Measures

  • Monitoring and Reporting Plan

  • Compliance Certification and Attachments

What it handles

  • Applicant and Facility Information

  • Discharge Description

  • Treatment and Control Measures

  • Monitoring and Reporting Plan

  • Compliance Certification and Attachments

Required documents

  • Facility Information and Operational Data

    Corporate registration documents, facility address, SIC/NAICS codes, ownership structure, and operational capacity information

    .pdf, .docx, .xlsx

  • Discharge Monitoring Reports (DMRs)

    Historical discharge data for at least 12 months, including flow rates and pollutant concentrations for all outfalls

    .pdf, .xlsx, .csv

  • Site Plans and Process Flow Diagrams

    Facility layout showing discharge points, wastewater collection systems, and treatment process flow diagrams with equipment specifications

    .pdf, .dwg, .jpg

  • Laboratory Analytical Reports

    Water quality analyses showing pollutant concentrations, analytical methods used, and quality control data

    .pdf, .xlsx

Supporting documents

  • Existing NPDES Permit

    Current permit with number, expiration date, effluent limitations, and special conditions (for renewal applications)

    .pdf

  • Treatment System Specifications

    Engineering reports, design specifications, and performance data for wastewater treatment equipment and processes

    .pdf, .docx

  • Compliance History Documentation

    Notices of violation, enforcement actions, consent agreements, or compliance schedules affecting the facility

    .pdf, .docx

  • Receiving Water Quality Data

    Water quality standards, TMDL allocations, 303(d) impairment listings, and mixing zone studies for receiving waters

    .pdf, .xlsx

  • Pollution Prevention Plans

    Best management practices documentation, employee training records, and source reduction initiatives

    .pdf, .docx

  • Topographic Maps and Geographic Data

    USGS maps showing facility location, outfall coordinates, and downstream sensitive receptors

    .pdf, .jpg, .kml

Why teams use it

Reduce application preparation time from 6+ hours to under 15 minutes

Automatically extract facility data and discharge information from site plans and monitoring reports

Ensure compliance with EPA Form 1 requirements and state-specific NPDES guidelines

Generate complete monitoring plans with proper sampling methods and reporting schedules

Cross-reference current EPA regulations and best practices for treatment measures

Questions

What documents do I need to upload to generate an NPDES permit application?

You'll need facility operational data, discharge monitoring reports (DMRs) showing historical effluent quality, site plans with outfall locations, and laboratory analytical reports. CaseMark also benefits from existing permits (for renewals), treatment system specifications, and receiving water quality information. The AI extracts relevant data from these documents to populate all application sections including discharge characterization, treatment system descriptions, and monitoring programs.

Does CaseMark handle both new permits and permit renewals?

Yes, CaseMark generates applications for both new NPDES permits and renewals of existing permits. For renewals, the platform analyzes your current permit to extract limitations, special conditions, and compliance history, then incorporates updated operational data and monitoring results. The system automatically identifies changes in discharge characteristics or treatment systems that need to be documented in the renewal application.

How does CaseMark ensure compliance with state-specific NPDES requirements?

CaseMark incorporates federal EPA requirements under 40 CFR Parts 122-125 and recognizes state-specific variations for all authorized NPDES states. The platform identifies your permitting authority (EPA regional office or state agency), applies applicable effluent limitation guidelines for your industry category, and formats applications according to jurisdiction-specific forms and submission requirements. All regulatory citations reference both federal and applicable state regulations.

Can CaseMark analyze whether my discharge needs water quality-based effluent limits?

Yes, CaseMark performs reasonable potential analysis by comparing your discharge pollutant concentrations to applicable water quality criteria with appropriate dilution factors. The platform identifies pollutants requiring water quality-based limits more stringent than technology-based standards, evaluates mixing zone considerations, and addresses TMDL allocations for impaired waters. This analysis ensures your application demonstrates compliance with both technology-based and water quality-based requirements.

How long does the automated NPDES application process take?

CaseMark generates a complete, submission-ready NPDES permit application in approximately 15-20 minutes after you upload your facility documents. This includes discharge characterization for all outfalls, treatment system descriptions, effluent limitation analysis, monitoring program specifications, and organized supporting documentation. The platform reduces what typically requires 24+ hours of manual work to under 20 minutes of automated processing.

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