Slaughter Waste Disposal in Virginia
Bottom line [inferred]. Solids: composting on the host farm is the likely default, and rendering at Darling Winchester is the fallback. Liquids (round 3): blood and wash water are the harder problem. They are DEQ-regulated “industrial wastes”, so the practical answer is to capture blood and the first rinse and haul them with the offal, and put the cooler and cutting dock on public sewer. Get DEQ’s reading of both the composting exemption (D.4) and the agricultural exclusion in writing.
The rules that apply
| Material | Rule | What it means for an on-farm custom kill |
|---|---|---|
| Offal, head, bones composted on the host farm | 9VAC20-81-95 D.4: “Composting of animal carcasses on site at the farm of generation” is conditionally exempt, “provided no open dump, hazard, or public nuisance is created” | Likely exempt, with no permit. “Carcasses”, not “slaughter waste”, is the wording, so confirm with DEQ |
| Offal hauled to one central compost site | Leaves D.4. Category IV feedstock under 9VAC20-81-310 (“animal carcasses, slaughterhouse waste, paunch manure”), the strictest compost class | A permitted compost facility; not a startup option |
| Offal in barrels awaiting a renderer | 9VAC20-81-95 D.10.a: putrescible waste must leave within 7 days | Pickup schedule ≤7 days |
| Paunch / rumen contents | Ambiguous: C.1.b excludes animal manures returned to soil, while Category IV names “paunch manure” | Ask DEQ |
| Dead animals generally | Va. Code § 18.2-510: the owner must “forthwith” bury or cremate; exempts parts “used for food or in any commercial manner”; applies only in counties that adopt it | Offal sent to rendering is outside it. Check which Valley counties have adopted it |
| Burial | No burial exemption in 9VAC20-81-95 | Falls back to § 18.2-510 and DEQ/VDH water-protection guidance (not sourced) |
| Wash water, blood | 9VAC20-81-95 E.1 defers to the water boards; see the liquid-waste section below | Industrial waste under 9VAC25-32 |
Sources: DEQ VSWMR, Va. Code statutes.
Corrections to round 1’s research brief: § 3.2-6554 covers companion animals only. Title 3.2 has no renderer chapter (Ch. 57 is weights and measures). 9VAC20-170 covers waste transport on state waters, not composting.
Liquid waste: blood and wash water (round 3)
| Rule | What it says | Consequence |
|---|---|---|
| 9VAC25-32 (VPA) | “Industrial wastes” are liquid wastes from “any process of industry, manufacture, trade, or business”. Discharge into or near state waters, groundwater included, needs a VPA, VPDES or other DEQ permit. An unpermitted discharge must be reported within 24 h, with a written report within 5 days | Spreading blood or wash water on a pasture is, on the text, a permitted activity. No general permit exists for small food or meat processing (only animal feeding operations and animal-waste end users) (VPA) |
| 9VAC25-32-40 exclusions | (1) discharge to a POTW; (2) nonpoint agricultural runoff; (5) onsite treatment under a VDH permit | Whether (2) covers a third-party mobile unit’s blood and wash water on a farm is unsettled. Ask the DEQ Valley Regional Office |
| 12VAC5-610 / -613 (VDH) | “Sewage” includes “liquid industrial wastes as may be present”. Any alternative system (AOSS) is PE-designed for the actual wastewater strength; there is no meat category in the flow table; over 1,000 gpd is a Large AOSS. Spray irrigation goes to DEQ | Septic at the cooler means a custom-engineered system (VDH) |
Volume and strength (NMPAN wastewater): - Beef slaughter uses about 50–200 gal of water per animal. At 5 head/day that is 250–1,000 gpd [inferred], which sits right at the small/large AOSS line. - BOD is 1,000–2,500 mg/l with blood down the drain, against 127 mg/l when blood and the first sump rinse are hauled off. Residential sewage is about 100–300 mg/l. - NMPAN: septic “probably will not work for most meat processing plants”; municipal sewer is “often your best bet”; dry clean-up and blood capture come first. - A small Indiana plant runs six 1,000-gal tanks (the first drawn from the bottom as a grease trap), an effluent filter and a constructed wetland, with restrooms on a separate septic tank.
Mobile-unit practice: Sentinel’s 53 ft unit drains to a 60 gal holding tank, and the 2020 VAFAIRS review says mobile units typically carry 500 gal of potable water and 500 gal of wastewater. A custom-exempt field kill on bare ground has none of that, so a blood tub plus a wastewater holding tank on the rig is the conservative design [inferred].
SRMs: cattle 30 months and older
- FSIS SRM list (9 CFR 310.22):
- For cattle ≥30 months: skull, brain, trigeminal ganglia, eyes, vertebral column, spinal cord, dorsal root ganglia.
- For all cattle: distal ileum and tonsils.
- VDACS applies this to custom operators. Its custom-exemption guide requires inedible material “including SRMs” to be controlled so it can’t be diverted into food (VDACS). This answers the disposal agent’s open question of whether SRM rules reach custom-exempt kills at all.
- FDA feed ban (21 CFR 589.2001). Brains and spinal cords of cattle ≥30 months are banned from all animal feed. So is the whole carcass of non-inspected cattle of that age unless the brain and spinal cord are removed. Renderers must segregate this material, dye it, label it “Do not feed to animals”, keep records for ≥1 year, and get supplier certifications of segregation procedures (21 CFR 589.2001).
- What this means for the operator [inferred]: an age-sorting SOP, determined by dentition or records, that keeps ≥30-month brain and spinal cord in separate containers, plus a renderer that accepts them. T&E Meats charges $50/head for “mad cow” handling of cattle over 30 months. That is a real price point for this extra work.
Renderers
One renderer for the whole state. VDACS’s 2023 five-year plan (RD894) records industry testimony that “the entire slaughter industry in Virginia is reliant on a single rendering operation”. Hides lost their China export market, and processors now often pay to landfill them (RD894). Single-supplier risk belongs in the plan.
Renderer cost benchmark: the California Central Coast USDA unit paid about $6/animal for renderer collection of tubbed offal (Central Coast).
Darling Ingredients, which bought Valley Proteins in fiscal 2022, lists animal by-product rendering plants at Winchester, VA and Linville, VA in its FY2025 10-K, plus Linkwood, MD (Darling).
Suppliers on non-formula terms may be paid, not paid, or “charged a collection fee”, depending on volume and transport. A small operator should expect to pay [inferred].
Archived Valley Proteins pages show dead-stock collection only “in a limited service area” and sold hides to the leather trade.
Unknown: Darling’s minimum volumes and fees, whether it will take ≥30-month SRM material and hides from a mobile operator, and its pickup radius.
How other states compare
New Mexico and Washington let ranchers compost offal on their own land. California bans on-ranch composting of mammalian tissue and requires an inedibles permit and a renderer (NMPAN manual). On this question Virginia’s D.4 exemption looks closer to New Mexico and Washington than to California [inferred].
Calls to make
- DEQ Valley Regional Office (Harrisonburg): does D.4 cover slaughter offal composted on the farm where the animal was killed? Is paunch “manure”?
- DEQ Valley Regional Office: does the agricultural-nonpoint exclusion (9VAC25-32-40(2)) cover a mobile operator’s blood and wash water on the host farm? VDH local district: holding tank or AOSS for the cooler dock.
- Darling Winchester: fees, minimums, SRM and hides acceptance, pickup schedule.
- Frederick, Clarke, Shenandoah, Warren and Page counties: have they adopted § 18.2-510? Any local ordinance on on-farm composting?