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What We Do

Castilaw Environmental Services (CES) is a trusted environmental consulting firm dedicated to helping our clients achieve their environmental goals. We have extensive experience working with a variety of clients, including government agencies, financial institutions, private companies, and non-profit organizations, and provide high-quality environmental services tailored to meet each of their unique needs and exceed their expectations.

We provide comprehensive environmental services including environmental due diligence; National Environmental Policy Act (NEPA) compliance and reporting; Phase I Environmental Site Assessments; stormwater pollution prevention (SWP3) planning and permitting; GIS and mapping; and many more.


CES has built a strong & well-regarded reputation for providing comprehensive environmental due diligence services within the commercial real estate, agricultural, & renewable energy sectors. CES boasts a proven track record in handling a variety of loan programs including U.S. Small Business Administration (SBA) [7 (a) &  504] and  U.S. Department of Agriculture (USDA) Rural Development (RD) [REAP, 9003, B&I, WEP, & CF], as well as conventional direct loans.

Environmental Due Diligence

A thorough and accurate Phase I ESA is critical in protecting you from potential environmental liabilities associated with a property. Our team has extensive experience working with a variety of clients, including real estate developers, lenders, and property owners, to ensure that their Phase I ESAs are completed accurately and efficiently to current ASTM standards.


NEPA compliance is a critical component of any project involving federal funding, permits, or approvals. It is essential to work with a knowledgeable and experienced environmental consultant firm to ensure that your project is in compliance with all NEPA regulations. 

  • Environmental Agency (Local, State, and Federal) Consultation

  • Environmental Inspection Services

  • Environmental Due Diligence:

    • Desktop Environmental Reports

    • Environmental Regulatory Database Reviews

    • Environmental Transaction Screens

    • Phase I Environmental Site Assessments

    • Phase II Environmental Site Assessments

    • Property Inspections and Evaluations

    • Records Search with Risk Assessments

    • Transaction Screen Assessments

  • Environmental Permitting

  • Financial Lending-Related:

    • Small Business Administration (SBA) Loan Programs - 7 (a) & 504

    • USDA Rural Development Loan Programs - REAP, 9003, B&I, WEP & CF

  • Geographic Information Systems (GIS) & Mapping Services

  • National Environmental Policy Act (NEPA) Compliance and Reporting:

    • Environmental Assessments (EAs)

    • Environmental Reports (ERs) for Categorical Exclusions

    • Natural Resource Policy Consultations & Documentation:

      • Clean Water Act & Clean Air Act Compliance

      • Coastal Zone Considerations

      • Cumulative Effects Analysis

      • Environmental Justice Considerations

      • Farmland Protection Policy Act Compliance

      • Project Development & Coordination

      • Section 106 of the National Historic Preservation Act Consultations

      • U.S. Fish & Wildlife Service Section 7 of the Endangered Species Act Consultations

  • Stormwater Pollution Prevention Plans (SWP3)

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