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The Fennec Lab

Hospitality / waterfront operator economics

Marina Operations Calculators

Operator economics for full-service marinas: per-foot slip rental pricing with the AMI five-tier rate card and RevPAR benchmarks, fuel-dock margin on gasoline and diesel with EPA SPCC compliance under 40 CFR Part 112, haul-out and on-land storage pricing with travel-lift ROI, and the annual environmental compliance cost stack across SPCC, NPDES stormwater, USCG MSD pump-out, and state Clean Marina certification.

Anchored to: 40 CFR Part 112 (EPA SPCC); 40 CFR § 122.26 (EPA NPDES MSGP Sector Q); 33 CFR Part 159 (USCG MSD); 16 USC § 777g(c) (federal Clean Vessel Act); AMI member-survey benchmarks; Marina Dock Age industry RevPAR; ABYC marine handling standards

4 calculators live. Reviewed against current statute and regulation. Last updated 2026-05-17.

Most-used calculators

Association of Marina Industries (AMI) annual member-survey benchmarks on per-foot per-month slip rates and length-tier banding

Marina Slip Rental Pricing Calculator

Wet-slip rental pricing and monthly revenue projection for a full-service marina. Models the standard per-foot per-month pricing convention with a five-tier length rate card (under 25 ft, 26-35 ft, 36-45 ft, 46-65 ft, 66 ft and up) anchored to the Association of Marina Industries (AMI) member-survey banding. Applies a transient vs annual blend with a transient premium multiplier, plus ancillary revenue from fuel-dock margin per slip and electric kWh pass-through markup. Reports monthly slip revenue, monthly ancillary revenue, total monthly revenue, the 12-month annual projection, and the per-slip RevPAR benchmark against Marina Dock Age industry data.

EPA Spill Prevention

Marina Fuel Margin Calculator

Per-gallon gross margin and monthly net margin on marina fuel-dock sales of gasoline and diesel. Models rack cost per gallon, retail price per gallon, monthly fuel-pump operating cost (labor, electric, equipment maintenance), and monthly environmental compliance cost (EPA SPCC plan maintenance under 40 CFR Part 112 plus state oil-spill program participation). Reports per-gallon gross margin (gasoline, diesel, and blended), daily/monthly/annual fuel revenue, monthly gross margin, monthly net margin after fixed costs, and breakeven gallons per month. Flags EPA SPCC trigger threshold of 1,320 gallons aggregate above-ground storage.

Association of Marina Industries (AMI) annual member-survey haul-out and on-land storage pricing benchmarks

Marina Haul-Out and Storage Pricing Calculator

Boat haul-out and on-land storage pricing for a marina operating a travel-lift or marine railway. Models the standard per-foot fee stack: haul-out fee per foot (one-time travel-lift fee), blocking and cradling charge (flat per boat), on-land storage rate per foot per month, and splash fee for relaunch. Reports the total haul-out package cost for a single boat, the monthly storage revenue per boat, and the annual revenue projection across the operation's haul-out volume. Computes travel-lift equipment ROI as years-to-payback against the capital cost, benchmarked against the typical 20-year travel-lift useful life. Anchored to Association of Marina Industries member-survey haul-out pricing benchmarks and American Boat & Yacht Council (ABYC) marine handling standards.

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For LCAMs & community managers

Operational tools for the day-to-day: estoppel preparation, statutory cap verification, hearing procedure.

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How these calculators are maintained

Every YMYL calculator is reviewed quarterly and after every legislative session in the jurisdiction it covers. Citations are link-validated monthly against the relevant statute and regulation websites. The methodology page documents the discipline.

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