Section R. 287.651 - DefinitionsRule 1. As used in these rules:
(a) "Afterbirth" means fetal fluids, placenta, and fetal mortality.(b) "Anaerobic digestion" means the biochemical conversion of complex organic materials, such as manure, into methane and other byproducts in the absence of oxygen.(c) "Animal process operation" is a place where animals or animal tissues may accumulate in a non-production (no multiple-day care and feeding) setting such as a butcher shop, slaughter facility, taxidermist, road commission, veterinary clinic, or market collection point.(d) "Animal production operation" generally described as a "farm," means an operation where animals under common ownership or management receive care and feeding for the production of food, co-products, or pleasure.(e) "Biogas" means the gaseous mix of methane, carbon dioxide, and other trace gases including hydrogen sulfide, ammonia, and hydrogen.(f) "Digestate" means the mixture of liquid and solid material (slurry) remaining after the digestion process is completed. Digestate is commonly known as effluent.(g) "Finished" compost means ready for final utilization as a soil amendment, plant fertilizer, or rooting medium. Finished compost shall be dark, humus-like with little odor, and free of any animal soft tissue.(h) "Forced aeration" means air is pushed or pulled through compost using a blower and perforated ductwork (within the compost or in the floor or walls surrounding the compost) to speed the composting process.(i) "In-vessel" means composting within a container, using forced aeration by mechanical turning (rotating drum).(j) "Leachate" means any liquid that may drain from compost.(k) "Mesophilic" means operating the anaerobic digester in the temperature range of 95 degrees Fahrenheit to 105 degrees Fahrenheit.(l) "NRCS" means Natural Resources Conservation Service of the United States Department of Agriculture.(m) "Passive aeration" means the movement of air through a compost pile brought about by the pull that is created when warm air exits the top and side of the pile and air from or through other parts of the compost is drawn in to take its place. Exiting air contains gases, moisture, and heat.(n) "Restaurant grease" means animal or vegetable oils and fats that have been used or generated as a result of the preparation of food by a restaurant or other establishment that prepares or cooks food for human consumption. Restaurant grease does not include trap grease, interceptor grease, or other contents of grease traps or interceptor traps.(o) "Site" means the location on premise where composting occurs.(p) "Specifically designed container truck" means a truck or other vehicles designed or modified and constructed to haul individual leak proof containers.(q) "Surface waters" means the definition in R 287.651(1)(o)(i) to (viii).(r) "Thermophilic" means operating in the temperature range of 125 degrees Fahrenheit to 135 degrees Fahrenheit.(s) "Trap grease," also referred to as "interceptor grease," means any restaurant grease skimmed, filtered, separated, or otherwise captured from wastewater before discharge.(t) "Waters of the state" means all of the following, but does not include drainage ways and ponds used solely for wastewater conveyance, treatment, or control: (i) The Great Lakes and their connecting waters.(vii) Other surface bodies of water within the confines of the state.Mich. Admin. Code R. 287.651
1995 AACS; 2007 AACS; 2011 AACSAn obvious error in R 287.651 was corrected at the request of the promulgating agency, pursuant to Section 56 of 1969 PA 306, as amended by 2000 PA 262, MCL 24.256. The rule containing the error was published in Michigan Register, 2011 MR 11. The memorandum requesting the correction was published in Michigan Register, 2011 MR 20