State and province guides / Ontario

Ontario compost facility recordkeeping requirements

Agency

Ontario Ministry of the Environment, Conservation and Parks

Citation

O. Reg. 101/94 and the Ontario Compost Quality Standards

What Ontario expects you to record

• Windrow: 55 °C or above for 15 days, with at least 5 turnings during that period.
• Aerated static pile and in-vessel: 55 °C or above for 3 consecutive days.
• Most facilities operate under an Environmental Compliance Approval (ECA); the conditions in your own ECA sit on top of the regulation and are what an inspector reads first.

Pathogen reduction (PFRP) in practice

Canada has no federal equivalent of 40 CFR 503 — the rules are provincial, and most track the CCME Guidelines for Compost Quality, which use the same time and temperature pairs: windrows must hold 55 °C or above for 15 days with at least five turnings during that period, while aerated static piles and in-vessel systems must hold 55 °C for three consecutive days. The evidence is the temperature record — which is exactly what tends to be incomplete when it lives on a clipboard.

How PileProof records it

• Crews log temperatures from a phone, offline if the yard has no signal, against the specific batch.
• Each batch's PFRP status is recalculated on every reading, using a compliance profile you can point at Ontario's thresholds.
• A missed day or a cold reading flags the batch AT RISK the same day, in the app and in a daily email digest.
• Certificates, activity reports and a full audit binder export on demand, with the raw data behind them.

PileProof is a record-keeping tool, not legal advice. Verify report formats and thresholds with your state agency and permit.