Stanton Bros. Limited - Environmental Compliance Approval (waste)

This proposal is for an amendment to Environmental Compliance Approval No. 1206- BG4SP9 (waste disposal site) for a waste disposal site (processing) for receipt and pre-processing of organic off-farm wastes and processing (anaerobic digestion) of the off-farm wastes with agricultural source materials for production of soil supplements, animal bedding materials, and biogas.

The approval is being sought to expand the existing facility regulated under the Nutrient Management Act consisting of:

• two solids receiving bunkers and feeders
• three off-farm waste receiving pits/pasteurizers (holding capacity of 155 cubic metres each)
• four off-farm waste receiving pits/pasteurizers (holding capacity of 228 cubic metres each)
• a manure blend tank (holding capacity of 341 cubic metres)
• a regulated mix anaerobic digester (holding capacity of 5,000 cubic metres)
• a continuously stirred tank reactor (CSTR) anaerobic digester (holding capacity of 7,000 cubic metres)
• three generation units
• biogas conditioning equipment, and
• two waste gas flares

The digesters and the associated equipment and structures have been built in compliance with all applicable regulatory requirements at the me of construction.

The total area of the proposed waste disposal site is 1.07 hectares. The site will receive a maximum of 400 cubic metres of liquid waste per day or 400 tonnes of non-hazardous solid waste per day with an annual maximum of 80,000 cubic metres of liquid waste or tonnes non-hazardous solid waste. This is an increase of the annual amount of off-farm waste from 60,000 to 80,000 cubic metres/tonnes. The addition of the four off-farm waste receiving pits/pasteurizers of holding capacity of 228 cubic metres for off-farm waste receipt, storage and pre-processing will be used to manage the increased amounts of the off-farm waste. This off-farm waste will then be mixed with the agricultural source materials in the existing secondary mixed anaerobic digester having a 7,000 cubic metres capacity. Generated biogas will be upgraded into renewable natural gas prior to its injection into a natural gas pipeline as well as burned in the three CHP generation units.

The total amount of off-farm waste stored at the site is not to exceed 400 cubic metres or 400 tonnes at any one me. Receiving hours of operation are 7 a.m. to 7 p.m., 6 days a week, and the processing will occur 24 hours a day, 7 days per week. The waste disposal site serves the Province of Ontario.