Technical Consulting · New England & Remote

Controlled Environment Agriculture & Aquatic Systems Consulting

Specialist technical consulting in CEA facility design, recirculating aquaculture systems, aquaponics, and water quality management — drawing on biological and agricultural engineering research and federal regulatory experience. Primary service area: New Hampshire and New England. Remote consulting available for qualified engagements.

Why This Expertise Is Rare

The Technical Gap in Controlled-Environment Agriculture & Aquatic Production

Controlled-environment agriculture (CEA) — from vertical farms and greenhouse operations to recirculating aquaculture systems (RAS) and coupled aquaponics — requires an unusual combination of disciplines: hydraulic and structural engineering, water chemistry, biological systems management, crop science, and regulatory compliance. Most consultants hold depth in one or two of these areas. Few hold all of them.

Most agronomists lack the systems engineering background. Most engineers lack the biological and water quality depth. Extension educators understand neither permitting nor finance. Todd Guerdat's twenty years of biological and agricultural engineering practice — including a PhD, federal NRCS field experience, and active environmental site work — spans all of these, making GSS an unusually complete technical resource for CEA and aquatic production clients in the region.

For New England producers operating in regulated environments — NPDES discharge permits, nutrient management requirements, USDA program compliance — the overlap between technical system design and regulatory knowledge is particularly valuable. For clients outside the region, remote engagement is available for defined-scope work: technical reviews, feasibility analysis, permit support, and system design documentation.

Aquaponics deep water culture lettuce greenhouse — GSS CEA design
Core Background

PhD Research in Aquatic Systems

Biological and Agricultural Engineering research in water quality and biological production systems

Applied Experience

Water Treatment & Quality Management

Municipal, agricultural, and aquaculture water treatment systems across multiple sectors

Regulatory

Federal Policy Background

Clean Water Act compliance from NRCS federal role — directly applicable to regulated producers

Active Engagements

New England Producer Clients

Active consulting relationships with New England aquaculture and controlled-environment agriculture producers. Remote advisory available for qualified out-of-region engagements.

CEA & Aquatic Systems Services

Technical Services Offered

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CEA Water Quality & System Design

Water quality parameter management for RAS aquaculture, aquaponics, and hydroponic systems. Biofilter design and optimization, dissolved oxygen systems, pH management, nutrient cycling, and irrigation water quality for greenhouse operations. Site visits available throughout New England; remote troubleshooting and design review available for out-of-region clients.

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Aquaponics & Vertical Farm System Design

Coupled aquaponic system design (fish:plant ratios, nitrification sizing, media bed/DWC/NFT selection), vertical farm infrastructure review (lighting, HVAC interaction, irrigation), and greenhouse CEA production layout — for new builds and facility expansions throughout New England. Remote design review available for qualified projects outside the region.

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Regulatory Compliance & Permitting Support

NPDES discharge permit applications for aquaculture and CEA facilities, nutrient management planning for effluent land application, USDA program compliance (EQIP, CSP, VAPG, REAP), and NH/New England state-level environmental permit support. Federal policy background (CWA, ESA) enables substantive engagement with regulatory reviewers — not just form completion. Remote regulatory document support available for out-of-region clients.

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Feasibility Analysis & Business Review

Independent technical feasibility review for new CEA or aquaculture facility proposals — water supply adequacy, system sizing for target production volumes, energy and labor intensity estimates, crop or species selection validation. Primarily serving New England developers; lender-ready technical narratives and third-party review letters are document-based deliverables available to clients anywhere.

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Greenhouse & Indoor Ag Infrastructure

High tunnel and greenhouse environmental control review, hydroponic and aeroponic system selection and sizing, drip and flood-and-drain irrigation design, and site suitability assessment for CEA facility siting across New England. Design review and specification documentation available for out-of-region clients without a site visit requirement.

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Technical Review & Due Diligence

Third-party technical review of CEA or aquaculture facility design documents, production system proposals, or feasibility studies — for New England lenders, investors, and regulatory bodies. This service is document-based and well-suited to remote delivery, making it accessible to out-of-region clients who need a credentialed independent reviewer without requiring local expertise.

Ideal Clients

Who This Service Is For

  • Existing CEA & Aquaculture Producers — RAS, aquaponic, greenhouse, hydroponic, and vertical farm operations in New England with water quality challenges, production optimization needs, or regulatory compliance questions. Site visits available throughout NH and New England; remote advisory for out-of-region producers.
  • New Facility Developers — Entrepreneurs and agricultural investors planning CEA or aquaculture facilities in New England who need independent technical validation. For developers outside the region, feasibility review and design documentation are available remotely.
  • Agricultural Lenders — NH and New England banks, credit unions, and ag lenders considering loans for CEA or aquaculture facilities who need a credentialed independent technical reviewer. Lender-ready deliverables provided; remote engagement available for out-of-region lenders with New England borrowers.
  • Extension & Conservation Organizations — Groups promoting CEA, aquaponics, or water-based production as alternative farm income streams. Technical curriculum development, grower training support, and project feasibility assessment available.
  • Regulatory Agencies — State environmental and agricultural agencies reviewing CEA or aquaculture permit applications who need an independent expert technical opinion.
New England's CEA and aquaculture sector is growing fast — and the combined technical and regulatory expertise required to design, permit, and review these facilities is genuinely scarce in this region.
— GSS, Newfields NH
Engagement Details
  • Engagements scoped to your project — from focused advisory calls to multi-phase technical programs
  • Written deliverables provided for all engagements
  • NDA available on request for proprietary facility reviews
  • Project-based flat fees available for defined scope work; retainer arrangements for ongoing support