Oregon Administrative Rules › Chapter 340 - DEPARTMENT OF ENVIRONMENTAL QUALITY › Division 50 - LAND APPLICATION OF DOMESTIC WASTEWATER TREATMENT FACILITY BIOSOLIDS, BIOSOLIDS DERIVED PRODUCTS, AND DOMESTIC SEPTAGE › Section 340-050-0010 - Definitions

Current through Register Vol. 63, No. 7, July 1, 2024
Unless otherwise indicated in this Division, definitions
				appearing under federal regulations
40 CFR §
										503.11, and §
									503.31
shall apply. In addition, as used in these rules, unless
				defferently required by context, the following definitions apply:
(1) "Agronomic Application Rate" means a rate
			 of biosolids or domestic septage application which matches nutrient
			 requirements for specific crop on an annual basis.
(2) "Beneficial Use Site" means any
			 Department approved site for application of a regulated amount of biosolids or
			 domestic septage used for crop or livestock production, soil reclamation and
			 stabilization, or soil improvement. Application rates and site management
			 practices shall assure continued agricultural, horticultural or silvicultural
			 production and shall not lead to a temporary or long-term reduction in site
			 productivity.
(3) "Biosolids" means
			 solids derived from primary, secondary, or advanced treatment of domestic
			 wastewater which have been treated through one or more controlled processes
			 that significantly reduce pathogens and reduce volatile solids or chemically
			 stabilize solids to the extent that they do not attract vectors. This term
			 refers to domestic wastewater treatment facility solids that have undergone
			 adequate treatment to permit their land application. This term has the same
			 meaning as the term "sludge" inORS 468B.095, and the term "sewage sludge" found
			 elsewhere in OAR Chapter 340.
(4)
			 "Biosolids Derived Products" means materials derived from composting domestic
			 wastewater treatment facility solids or other processes, such as thermal
			 drying, which result in a material which meets pollutant concentrations
			 in
40 CFR §
										503.13(b)(3)
, the Class A pathogen requirements
			 in
40 CFR §
										503.33(b)(1)
to
§ 503.33(b)(8)
.
			 Biosolids derived products also include any soil amendments which, in part,
			 contain biosolids meeting these criteria. Biosolids derived products are
			 acceptable for distribution to the general public for immediate use.
(5) "Chemical Treatment" means the process of
			 mixing lime or other chemicals with domestic wastewater solids or domestic
			 septage to reduce the number of pathogens or amount of putrescible
			 matter.
(6) "Composting" means a
			 process by which domestic wastewater treatment facility solids, biosolids, or
			 septage are mixed with carbonaceous material and aerated with controlled
			 elevated temperatures to promote rapid decomposition and ultimate stabilization
			 as well as pathogen reduction.
(7)
			 "Controlled Access" means that public entry or traffic is unlikely, for example
			 agricultural land that is privately owned. Parks or other public land may
			 require fencing to ensure controlled access.
(8) "Domestic Wastewater Treatment Facility
			 Solids" means the accumulated suspended and settleable solids of domestic
			 wastewater, deposited in tanks or basins mixed with water to form a semi-liquid
			 mass. Grit and screenings removed from domestic wastewater during preliminary
			 treatment are not considered solids under this definition.
(9) "Department" means the Oregon Department
			 of Environmental Quality (DEQ).
(10) "Dewatered Solids" means domestic
			 wastewater treatment facility solids or biosolids with a solids concentration
			 between 10 and 50 percent.
(11)
			 "Domestic Septage" means liquid or solid material removed from a septic tank,
			 cesspool, protable toilet, Type III marine sanitation device, holding tanks, or
			 similar treatment works that receive only domestic wastewater. Domestic septage
			 does not include liquid or solid material removed from a septic tank, cesspool,
			 or similar treatment works that receive either commercial wastewater or
			 industrial wastewater and does not include grease removed from a grease trap at
			 a restaurant.
(12) "Domestic
			 Wastewater" means the water-carried human wastes from residences, buildings,
			 industrial establishments or other places, together with such groundwater
			 infiltration and surface water as may be present that flow to wastewater
			 treatment facilities.
(13) "Dried
			 Solids" means domestic wastewater treatment facility solids or biosolids with a
			 solids concentration of greater than fifty percent accomplished by mechanical
			 means or air drying.
(14)
			 "Exceptional Quality Biosolids" means domestic wastewater treatment facility
			 solids containing trace pollutant concentrations which are below federal
			 alternative pollutant limits recognized under
40 CFR §
										503.13(b)(3)
that have been treated by a Class A pathogen reduction
			 process recognized under
40 CFR §
										503.32(a)
and one of the
			 vector attraction reduction procedures established under
40 CFR §
										503.33(b)(1)
through
(8)
. These solids are recognized as soil
			 amendments which are acceptable for distribution and marketing to the
			 public.
(15) "Federal Regulations"
			 means Part 503 Standards for the Use or Disposal of Sewage Sludge, Subchapter O
			 in Chapter I of Title 40 of the Code of Federal Regulations
			 (
§503
).
(16)
			 "Liquid Biosolids" means domestic wastewater treatment facility biosolids with
			 a solids concentration of less than ten percent.
(17) "Non-Digested Solids" means raw domestic
			 primary, secondary, or advanced wastewater treatment facility solids, or solids
			 that have accumulated in a digester which is either not operating efficiently
			 or has not provided adequate time or temperature for digestion to occur; a
			 lagoon where settled solids have not decomposed to the extent that they comply
			 with
40 CFR §
										503.32
pathogen or
40 CFR §
										503.33
vector attraction reduction requirements; or a septic tank process
			 whose function is confinement and/or separation of liquids and
			 solids.
(18) "NPDES Permit" means a
			 waste discharge permit issued in accordance with requirements and procedures of
			 the National Pollutant Discharge Elimination System authorized by the Federal
			 Clean Water Act and of OAR chapter 340, division 45.
(19) "Person" means the United States and
			 agencies thereof, any state, any individual, public or private corporation,
			 political subdivision, governmental agency, municipality, co-partnership,
			 association, firm, trust, estate or any other legal entity whatever.
(20) "Site Authorization Letter" means a
			 Department issued document which establishes minimum site management conditions
			 for applying biosolids to a specific land application site.
(21) "Raw Sewage Sludge" means non-decomposed
			 or non-oxidized sewage sludge.
(21)
			 "Sludge" or "Sewage Sludge" -- See Biosolids.
(22) "Treatment" means the alteration of the
			 quality of domestic wastewater, wastewater derived solids, or septage by
			 physical, chemical or biological means or a combination thereof, such that the
			 tendency of said liquids or solids to cause any degradation in water quality or
			 other environmental conditions is reduced.
(23) "WPCF Permit" means a Water Pollution
			 Control Facility permit issued by the Department in accordance with the
			 procedures of OAR Chapter 340, Division 14 or OAR Chapter 340, Division 71 and
			 which is not an NPDES Permit.
Stat. Auth.:ORS 468
Stats. Implemented:ORS
				  468&468B