Ohio Administrative Code › Title 3701 - Department of Health - Administration and Director › Chapter 3701-29 - Household Sewage Treatment Systems › Section 3701-29-01 - Definitions

Current through all regulations passed and filed through July 1, 2024
As used in this chapter:
(A)
								 "AASHTO" mean
			 the American association of state highway and transportation
			 officials.
(B)
								 "Alter" or "Alteration" means the same as division (A)
			 of section 3718.01 of the Revised Code. For
			 the purposes of this chapter, the terms "alter" or "alteration" shall include,
			 but not be limited to a change in the nature of influent waste strength; a
			 change in system components; an expansion of the treatment or dispersal system,
			 and may include a change in the volume of the daily design
			 flow.
(C)
								 "ANSI" means the American national standards
			 institute.
(D)
								"Approved Leaching Trench Products Utilizing a
			 Non-gravel Fines-Free Distribution System" means products which have received
			 the approval of the director through one of the two processes described in rule
			 3701-29-13
			 of the Administrative Code.
(E)
								 "Aquifer" means
			 a consolidated or unconsolidated geologic formation or series of formations
			 that are hydraulically interconnected and that have the ability to receive,
			 store, or transmit water.
(F)
								 "ASTM" means the
			 American society for testing and materials or ASTM
			 international.
(G)
								 "Average Daily Flow" means the actual average flow of
			 sewage through the sewage treatment system in a twenty-four hour period,
			 typically assumed to be sixty per cent of the daily design
			 flow.
(H)
								 "Bedrock" means hard stratum that underlies
			 unconsolidated surface materials or soil.
(I)
								 "Bedroom" means
			 a room that is designed or used as a sleeping room or any room that that could
			 reasonably be used as or finished as a sleeping room as determined by the board
			 of health. The board of health may consider the room's architectural features
			 when making the determination.
(J)
								 "Biochemical
			 oxygen demand, five-day" or "BOD5" means the
			 quantitative measure of the amount of oxygen consumed by bacteria while
			 stabilizing, digesting, or treating biodegradable organic matter under aerobic
			 conditions over a five-day incubation period; expressed in milligrams per liter
			 (mg/L).
(K)
								 "Board of health" means the board of health of a city
			 or general health district or the authority having the duties of a board of
			 health in any city as authorized by section
			 3709.05 of the Revised Code, or
			 the authorized representative of such a board or authority.
(L)
								 "Black water"
			 means the portion of the wastewater stream that originates from toilet
			 fixtures, dishwashers, dish sinks, and food preparation sinks.
(M)
								 "BNQ" means
			 bureau de normalisation du Quebec
(N)
								 "Carbonaceous
			 biochemical oxygen demand" or "CBOD5" means an index of
			 the amount of oxygen that will be consumed by the decomposition of organic
			 matter in sewage. The CBOD5
								test is one of the commonly used indicators of waste
			 strength.
(O)
								 "CEN" means European committee for
			 standardization
(P)
								 "Cesspool" means an excavation (deeper than it is
			 wide) which receives sewage and from which the sewage seeps into the
			 surrounding soil through the bottom and openings in the side of the
			 pit.
(Q)
								 "CFU" means the number of bacteria colony forming
			 units, or colonies, or individual bacteria that can be counted or estimated in
			 a membrane filter coliform test.
(R)
								 "Coarse
			 aggregate" means materials that meet AASHTO standard M43 sizes four through
			 fifty-seven and shall be washed with not more than five per cent passing the
			 number two hundred (seventy-five micrometers) sieve as determined by ASTM C117,
			 "Test Method for Material Finer than 75-µm (No. 200) Sieve in Mineral
			 Aggregates by Washing" and shall be durable with a hardness of three or greater
			 on the Moh's scale of hardness.
(S)
								 "Component"
			 means an independent portion of the sewage treatment system. Sewage treatment
			 system components include, but are not limited to, septic tanks, approved
			 pretreatment products, tertiary treatment, and soil absorption.
(T)
								 "Composting
			 toilet" means a system designed to store and compost human urine and feces
			 primarily by unsaturated, aerobic microbial digestion to a stable soil-like
			 material called "humus." These systems are commonly designed to accommodate
			 fecal and urinary wastes, toilet paper and small amounts of organic
			 carbonaceous material added to assist their function.
(U)
								 "CSA" or
			 "CAN/CSA" means the Canadian standards association or CSA
			 international.
(V)
								 "Cut bank" means a steep slope formed typically by
			 stream erosion or construction.
(W)
								 "Daily design
			 flow" means the peak estimated volume of sewage for any twenty-four hour period
			 received by a STS used for system design.
(X)
								 "Department of
			 health" means the department of health of the state of Ohio.
(Y)
								 "Designer" means
			 a person who creates plans for the installation, alteration, repair or
			 replacement of a sewage treatment system or a gray water recycling
			 system.
(Z)
								 "Device" means an approved sub-unit of a sewage
			 treatment system component. For example, agitators and blowers are devices in a
			 pretreatment component, and distribution boxes, drop boxes, and lift stations
			 are devices in a soil absorption component.
(AA)
								 "Director of
			 health" means the director of the department of health of the state of Ohio and
			 includes any authorized representative of the director.
(BB)
								 "Distribution"
			 means the process of conveying sewage or effluent to one or more components or
			 devices.
(CC)
								 "Domestic septage" means the liquid or solid material
			 removed from a sewage treatment system, composting or portable toilet, privy,
			 sewage holding tank, holding tanks for campers and recreational vehicles, or
			 type III marine sanitation device as defined in
			 33
			 C.F.R. 159.3. Domestic septage does not
			 include grease removed from a grease trap.
(DD)
								"Drainage well"
			 or "dry well" means an excavation or structure (deeper than it is wide) which
			 receives liquids and from which the liquid seeps into the surrounding soil
			 through the bottom and openings in the side of the pit.
(EE)
								 "DRAINMOD"
			 means a computer simulation model developed at North Carolina State University,
			 in Raleigh. North Carolina. The model simulates the hydrology of poorly
			 drained, high water table soils on an hour-by-hour, day-by-day basis for long
			 periods of climatological records. The model predicts the effects of drainage
			 and associated water management practices on water table depths, the soil water
			 regime and crop yields.
(FF)
								 "Dwelling" means the place which is occupied by a
			 person or persons as their primary residence or secondary residence that may be
			 seasonal or recreational.
(GG)
								 "Effective
			 size" or "D10" means particle diameter of which ten per
			 cent of the sample is finer by weight as determined by a sieve
			 analysis.
(HH)
								 "Effluent" means liquid flowing out of a STS component
			 or device.
(II)
								 "Engineered drainage system" means a drainage system
			 designed to meet the specifications of paragraph (F) of rule
			 3701-29-16 of the
			 Administrative Code.
(JJ)
								 "Fecal coliform" means bacteria common to the
			 digestive systems of warm-blooded animals that are cultured in standard tests.
			 Counts of these organisms are typically used to indicate potential
			 contamination from sewage or effluent or to describe a level of needed
			 disinfection.
(KK)
								 "Fill soil" means human-constructed deposits of
			 natural earth material derived from soil that has been moved from its naturally
			 occurring position or place.
(LL)
								 "Fine earth"
			 means soil that can pass a two millimeter sieve.
(MM)
								 "Fine textured
			 soil" means soil with a USDA soil textural class of sandy clay, silty clay or
			 clay.
(NN)
								 "Flood plain" or "special flood hazard area" means the
			 land in the floodplain subject to a one per cent or greater chance of flooding
			 in any given year, otherwise known as the one hundred-year flood plain. Special
			 flood hazard areas are designated by the federal emergency management agency on
			 flood insurance rate maps, flood insurance studies, flood boundary and floodway
			 maps and flood hazard boundary maps as zones A, AE, AH, AO, A1-30, and A99.
			 Special flood hazard areas may also refer to areas that are flood prone and
			 designated from other federal, state, or local sources of data including but
			 not limited to historical flood information reflecting high water marks,
			 previous flood inundation areas, and flood prone soils associated with a
			 watercourse as defined in Chapter 1521. of the Revised Code.
(OO)
								 "Flood way" as
			 defined in Chapter 1521. of the Revised Code means the channel of a river or
			 other watercourse and the adjacent land areas that have been reserved in order
			 to pass the base flood discharge. A floodway is typically determined through a
			 hydraulic and hydrologic engineering analysis such that the cumulative increase
			 in the water surface elevation of the base flood discharge is no more than a
			 designated height. The floodway is an extremely hazardous area, and is usually
			 characterized by, but is not limited to, any of the following: moderate to high
			 velocity flood waters, high potential for debris and projectile impacts, or
			 moderate to high erosion forces.
(PP)
								 "Flow
			 restrictive layer" means a layer above which saturated flow is expected to move
			 primarily laterally, such as:
(1)
									 A layer that has an infiltrative loading rate of "0"
			 on Table 3 of rule
			 3701-29-15
			 of the Administrative Code:
(2)
									 Fine textured
			 soils composed of primarily smectite or other highly expansive clays with weak
			 to no structure or which have slow to very slow permeability in addition to
			 expansive clays:
(3)
									 A layer with greater than sixty per cent rock fragment
			 size particles where the spaces between the rock fragments are primarily filled
			 with fine textured soils:
(4)
									 Bedrock that is deemed by the soil evaluator to be
			 relatively impermeable and free of fractures: or
(5)
									 Any other layer
			 deemed restrictive by the soil evaluator including but not limited to dense
			 glacial till, dense lacustrine deposits, fragipans, compacted soil, or soil
			 with a consistence stronger than firm or hard that is not well
			 drained.