Sec. 6-12.02.   Definitions.
   Whenever in the chapter the following terms are used, they shall have the meanings respectively ascribed to them in this section.
   (a)   “Agronomic rate” means a rate at which biosolids applications do not exceed nitrogen or other nutrient fertilizer rates or element additions for the crop to be grown and do not result in phytotoxicity or the excess accumulation of heavy metals and/or nutrients adverse to normal crop growth or quality, or which threatens to impact groundwater or wetlands.
   (b)   “Applicator” means any person, company, organization, or other legal entity who uses and/or places biosolids on any land within the County for any purpose, including but not limited to enhancing the growth of plants.
   (c)   “Biosolids” also referred to as “sewage sludge,” means any material taken or derived from the processing of municipal wastewater and/or from septic systems and shall include, but not be limited to, solid or semisolid material that contains suspended solids.
   (d)   “Class A biosolids” means biosolids meeting the Class A pathogen reduction requirements listed in 40 Code of Federal Regulations, Part 503, Section 503.32 or its revisions.
   (e)   “Class B biosolids” means biosolids meeting the Class B pathogen reduction requirements listed in 40 Code of Federal Regulations, Part 503, Section 503.32 or its revisions.
   (f)   “County” means the County of Yolo, State of California.
   (g)   “Department” means the Department of Public Health, Division of Environmental Health of the County of Yolo.
   (h)   “Field” means a discrete, discernable, and identifiable individual piece of land used or capable of being used for crop production under the provisions of the Yolo County zoning ordinances.
   (i)   “Feed crops” means crops produced for consumption by animals.
   (j)   “Fiber crops” means crops such as flax and cotton.
   (k)   “Food crops” means those crops consumed by humans.
   (l)   “Grower” means the operator of the site involved in production of agricultural crops.
   (m)   “Irrigation tail water” means the water applied to a field that does not infiltrate the soil, but collects or runs off at the lower end of a field.
   (n)   “Land application” means the spraying or spreading of biosolids onto the land surface; the injection of biosolids below the surface; or the incorporation of biosolids into the soil so that the biosolids can either condition the soil or fertilize crops or vegetation grown in the soil.
   (o)   “Person” means any person, firm, business, city, district, special district, water district, or other governmental agency, including but not limited to a sole proprietorship, partnership, joint venture, trust, association, or corporation whether for profit or non-profit.
   (p)   “Septage” means liquid or solid material removed from septic tanks, cesspools, portable toilets, type III marine sanitation devices or any similar device or receptacle. Septage does not include pits or grease removed from grease pits or traps.
   (q)   “Site” means a single parcel or contiguous parcels of land under the same ownership for which the use of biosolids is either requested or approved under the provisions of this Chapter.
   (r)   “Sludge” means any solid, semisolid or liquid waste containing human fecal matter and/or high concentrations of putrescible organic material generated from a municipal, community or industrial sewage treatment plant or containing septage.
   (s)   “Biosolids staging area” means the location on a site, where biosolids is deposited on the ground for loading onto a vehicle, for application, on the same or nearby sites in connection with an approved biosolids permit.
   (t)   “Treatment” means a process which alters, modifies, or changes the biological, physical or chemical characteristics of sludge or biosolids.
   (u)   “Units” means the pounds per acre of applied nutrients or elements (pounds per acre x 1.12 = kilograms per hectare (kg/hectare) and kilograms per hectare x .893= pounds per acre (lbs/A)).
   (v)   “Wastewater treatment plant” means a facility designed and constructed to receive, treat, or store sewage and operating under a permit from the State. (§ 1, Ord. 1204, eff. January 16, 1997)