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Certifications & NAICS Codes

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  • Maryland MDOT Certified MBE / DBE / SBE #18-221​​​

    • 541620 Environmental Consulting Services 
    • 541690 Other Scientific and Technical Consulting Services

    • 541330 Erosion Control Engineering Services

  • State of Maryland Small Business Reserve Certification # SB19-004873.

  • Commonwealth of Virginia SBSD Certified MBE / DBE / SBE / Micro #812882

    • 541620 Environmental Consulting Services

    • 541620 Ecological and wetland restoration and reclamation planning consulting services

    • 541690 Biological, chemical, and hydrology consulting services

  • Prince George's County MD, Supplier Development and Diversity Division's (SDDD) Certified County-Based Small Business CBSB-19-1156 and Minority Business Enterprise MBE-23-17383

    • ​​​541620 Environmental Consulting Services 

    • 541690 Other Scientific and Technical Consulting Service​

    • 541330 Erosion Control Engineering Services

  • Metropolitan Washington Airports Authority (MWAA)

    • SLBE Vendor ID 20752413 (for non-federally funded contracts)

      • 541620: Ecological Restoration Consulting Services

      • 541620 Environmental Consulting Services

      • 541690: Biological Consulting Services

      • 541690: Other Scientific and Technical Consulting Services

    • DBE #DB20752413 (for federally funded transportation contracts with the Airports Authority and other transportation agencies in Virginia)

      • 541690 Other Scientific & Technical Consulting Services​

      • 541330 Erosion Control Engineering Services

      • 541620 Environmental Consulting Services


  • WSSC Water Certified Small, Local Business Enterprise (SLBE)

  • Washington Metropolitan Area Transit Authority - WMATA ("Metro")

    • Small Business and Local Preference Program SBLPP 0002138  

    • Minority Business Enterprise MBE 0002027

    • Small Business Enterprise SBE 0004031

    • Disadvantaged Business Enterprise DBE0004031

      • 541620 Environmental Consulting Services 

      • 541690 Other Scientific and Technical Consulting Services

  • Washington DC DDOT DBE / SBE certification DBE0003807

    • 541620 Environmental Consulting Services 

    • 541690 Other Scientific and Technical Consulting Services

  • SBA Certified HUBZone Firm # 67525​


  • Howard County MD, Equal Business Opportunity (EBO) #M23-146

  • Montgomery County MD, MFD #CEN33482

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Meet The Owner

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Alexi is an ecologist with a Master of Science in Forest and Environmental Biology (Ecology). His thesis is entitled Regional Scale Analysis of Controls of Nitrate Loss from Deciduous Ecosystems in the Eastern US. He also has an MPA in Environmental Policy & Administration.

Since finishing graduate school he has accumulated 22 years of experience in MS4 permit support in the Mid-Atlantic, South Carolina and Puerto Rico. Alexi spent almost 6 years as a project manager, inspector and LID initiatives lead for the Government of the District of Columbia, Watershed Protection Division, Non-Point Source Management Branch. Since then he has worked as a consultant for city, county and state governments as well as for federal agencies, water utilities and transportation agencies.

Alexi is Stormwater Committee Co-Chair at the Water Environment Federation's (WEF),

Chesapeake Water Environment Association (CWEA) and a member of the Greater Washington Hispanic Chamber of Commerce since 2021.

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CWEA 2023 Golden Raindrop Award Recipient

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Professional Certifications

  • Chesapeake Bay Landscape Professional (CBLP)

  • Graduate of EPA's 6-week NPDES Permit Writer's Course 2021

  • VADEQ Dual ESC/SWM Program Administrator #DPA0186

  • VADEQ Dual ESC/SWM Inspector #DIN1431

  • Maryland Forest Conservation Act, Qualified Professional for Forest Stand Delineations and Forest Conservation Plans (QPFSD)

  • Maryland Dept. of the Environment (MDE) Erosion & Sediment Control Certification (Green Card) No. RPC017485

  • Maryland State Highway Administration (SHA) Erosion & Sediment Control Certification (Yellow Card) No. 75795305

  • 2022 Construction General Permit (CGP) Certified Inspector (EPA)
  • Maryland Department of Natural Resources (DNR), Maryland Biological Stream Survey (MBSS)
    • Physical Habitat Assessment 
    • Benthic Macroinvertebrate Sampling 

  • Permit Confined Space Entry

  • River Morphology and Applications (Rosgen Level II)

  • Applied Fluvial Geomorphology (Rosgen Level I)

  • Wetland Delineation, Environmental Concern Inc. 2021

  • Stream Habitat Measurements Techniques 2022, USFWS NCTC

  • CONTECH Factory Certified Maintenance Provider

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General Non-Discrimination & Harassment Policy Statement

Discrimination and /or harassement based on racecolorreligionsex including 

pregnancysexual orientation, or gender identitynational origindisabilityage (40 or older) or genetic information (including family medical history) is illegal and will not be tolerated at Clean Streams LLC.

Clean Streams LLC will provide reasonable accommodations (changes to the way things are normally done at work) to applicants and employees who need them for medical or religious reasons, as required by law.

Title VI Non-Discrimination Policy Statement

It is the policy of Clean Streams LLC  to comply with the regulations of Title VI of the Civil Rights Act of 1964, as amended and other nondiscrimination laws and authorities, that include regulations relative to nondiscrimination in federally-assisted programs of the Department of Transportation (DOT) Title 49, Code of Federal Regulations (CFR) and the Federal Highway Administration’s Title 23 Code of Federal Regulations 200. Clean Streams LLC does not discriminate against any person on the ground of race, color or national origin.


In addition to Title VI, Clean Streams LLC will not discriminate under other statutes that afford legal protection on the basis of sex, age or disability. Clean Streams will not discriminate in the selection or retention of subconsultants, including procurements of materials and leases of equipment.  Clean Streams will not participate either directly or indirectly in the discrimination prohibited by 49 CFR, Part 21.5.


In all solicitations, either by competitive bidding or negotiation made by Clean Streams LLC for work to be performed under a subcontract, including procurements of materials or equipment, each potential subcontractor or supplier shall be notified of the contractor’s obligations under the contract and the Regulations relative to nondiscrimination on the ground of race, color or national origin.


Clean Streams LLC will include the necessary nondiscrimination provisions in every subcontract; including procurements of materials and leases of equipment, unless exempt by the Regulations, or directives issued pursuant thereto.


Clean Streams LLC ensures nondiscrimination in all programs and activities in accordance with Title VI of the Civil Rights Act of 1964.


If you need more information or special assistance for persons with disabilities or limited English proficiency, contact us at the number or email above. Persons with hearing-and speech-impairments can contact Clean Streams LLC by using the Virginia Relay Service, a toll-free telecommunication device for the deaf (TDD) by calling 711 for TTY/TDD, or by using the Maryland Relay Program Customer Service by calling 1-800-552-7724 (V/TTY).

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