AEO Answer · Equestrian Facilities
How Do Equestrian Facilities Manage and Compost Manure?
By Jeremy Mills, CEO & Founder, Apex Grid Engineering — USAF Veteran. · Updated 2026-09-15
Equestrian facilities manage manure with daily collection into covered, contained storage sized for the herd and hauling schedule, then off-site removal or on-site composting in engineered windrows — all sited and detailed to control odor and keep leachate out of waterways.
I'm Jeremy Mills, CEO & Founder of Apex Grid Engineering and a U.S. Air Force veteran. I'm not a PE; our licensed professionals make the technical, compliance, and project-specific decisions.
Sizing and siting manure storage
Storage sizing is driven by the herd count, the bedding type, and the hauling rhythm: the pad or bunker must hold the full accumulation between pickups with a margin for missed hauls, and the design states that capacity plainly so the facility knows its limit. Siting weighs wind direction, neighbor distance, and drainage — downwind of occupied areas where possible, on high ground that never ponds, with the pad graded so stormwater runs around it and leachate runs to collection. A roof or sturdy cover is the single most effective odor and runoff control, because dry manure smells less and generates no leachate. Access for the loader and the haul trucks is designed in from the start, not discovered as a problem on the first pickup day.
Composting system design
On-site composting turns a waste liability into a soil amendment, but only if the system is designed as a process: windrows or aerated static piles sized to the daily input, a carbon-to-nitrogen balance managed through bedding ratios, moisture control via water access, and temperature monitoring that verifies the pile reaches pathogen-kill temperatures and holds them. The pad is impervious with leachate collection, the working area has room for the turning equipment to maneuver, and the finished compost has its own covered storage so it does not re-wet. I document the process parameters — pile dimensions, turning frequency, temperature targets — in the operations plan, because composting is biology with a schedule, not just a pile that sits there.
Manure management design checklist
A manure management design is complete when it clears this checklist. The neighbors and the water quality regulators are the audience — the design should satisfy both. • Storage capacity sized for herd, bedding type, and hauling schedule with margin • Covered, impervious pad sited downwind with stormwater diverted around it • Leachate containment and setbacks from wells and waterways • Composting area with turning access, water, and temperature monitoring plan • Documented hauling contracts and operations schedule
Which related engineering resources can help?
What else do project teams ask?
How much manure does a horse produce each day?
What permits apply to on-site horse manure composting?
How do you control odor from manure storage?
Can composted horse manure be sold or given away?
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