Ohio Administrative Code › Title 901:10 - Livestock Environmental Permitting › Chapter 901:10-3 - NPDES Permits › Section 901:10-3-11 - Stormwater permits general and individual

Current through all regulations passed and filed through July 1, 2024
(A) Definitions.
The following definitions shall apply specifically to
				stormwater. All other definitions contained in this rule and not otherwise
				defined in this rule shall retain the meaning in the rules contained in
				definitions rule
				901:10-1-01 of the
				Administrative Code and in Chapter 903. of the Revised Code.
(1) Best management practices for stormwater
			 means erosion control, sediment control and water quality management practices
			 that are the most effective and practicable means of controlling, preventing
			 and minimizing degradation of surface water, including construction-phasing,
			 minimizing the length of time soil areas are exposed, prohibitions and other
			 management practices published by the state or other agencies, such as
			 "Rainwater and Land Development, Ohio's Standards for Storm Water Management,
			 Land Development and Urban Stream Protection, Third Edition, 2006," prepared by
			 the Ohio department of natural resources, division of soil and water
			 conservation.
(2) Construction
			 activity means clearing, grading, excavation, grubbing and filling.
(3) Erosion means the wearing away of soil by
			 rainfall, surface water runoff, wind or ice movement.
(4) Erosion control means methods employed to
			 prevent erosion. Examples include soil stabilization practices, horizontal
			 slope grading, temporary or permanent cover and construction phasing.
(5) Exposed soil area means all areas of the
			 construction site where the perennial vegetation (including trees, shrubs and
			 brush) has been removed. This includes topsoil stockpile areas, borrow areas
			 and disposal areas within the construction site.
(6) Final stabilization means that all soil
			 disturbing activities at the site have been completed and that a uniform
			 perennial vegetative cover with a density of seventy percent of the cover for
			 unpaved areas and areas not covered by permanent structures has been
			 established or equivalent permanent stabilization measures have been
			 employed.
(7) First order stream
			 means all streams identified on a United States geological survey seven and
			 five tenths minute topographical map by either a dashed or blue solid
			 line.
(8) Impervious surface means
			 a constructed hard surface that either prevents or retards the entry of water
			 into the soil and causes water to run off the surface in greater quantities and
			 at an increased rate of flow than prior to development. Examples include
			 rooftops, sidewalks, patios, driveways, parking lots, storage areas, and
			 concrete, asphalt or gravel roads.
(9) "National Pollutant Discharge Elimination
			 System" (NPDES) means the program for issuing, modifying, revoking, reissuing,
			 terminating, monitoring and enforcing permits under the Clean Water Act
			 (Sections 301, 318, 402 and 405),
									
									
										33 USC
			 1317 (February 4, 1987),
			 33
			 USC 1328 (December 27, 1977),
			 33 USC
			 1342 (February 7, 2014),
			 33 USC
			 1345 (February 4, 1987).
(10) Permanent cover
			 means final stabilization including, but not limited to, grass, gravel, asphalt
			 and concrete.
(11) Sediment means
			 solid material, both mineral and organic, that is in suspension, is being
			 transported or has been moved from its site of origin by air, water, gravity or
			 ice and has come to rest on the earth's surface.
(12) Sediment control means methods employed
			 to prevent sediment from leaving the site. Sediment control practices include
			 filter strips, silt fences, sediment traps, earth dikes, drainage swales, check
			 dams, subsurface drains, pipe slope drains, storm drain inlet protection, and
			 temporary or permanent sedimentation basins.
(13) Soil means the unconsolidated, erodible
			 earth material consisting of minerals or organics.
(14) Stabilized means the exposed ground
			 surface has been covered by staked sod, rip rap, wood fiber blanket, or other
			 material, which prevents erosion from occurring. Grass seed by itself is not
			 stabilization.
(15) Stormwater
			 means the precipitation runoff, stormwater runoff, snowmelt runoff and any
			 other surface runoff and drainage defined in
			 40
			 CFR section 122.26(b)(13)
									(November 16, 1990). Stormwater does not include
			 construction site dewatering or agricultural stormwater discharges.
Stormwater resulting from an animal feeding facility includes
				immediate access roads and rail lines used or traveled by carriers of raw
				materials, products, waste materials, or by-products used or created by the
				facility, sites used for handling material other than manure, refuse sites,
				sites used for storage and maintenance of material handling equipment, shipping
				and receiving areas, and under the control of the owner or operator. All areas
				that fall within the meaning of production area are excluded from this
				definition.
(16) Temporary
			 protection means temporary methods employed to prevent erosion.
Examples of temporary protection include: straw, wood fiber
				blanket, wood chips and erosion netting.
(17) Waters of the state means all streams,
			 lakes, ponds, marshes, watercourses, waterways, wells, springs, irrigation
			 systems, drainage systems and other bodies or accumulations of water, surface
			 and underground, natural or artificial which are situated wholly within, partly
			 within or border upon this state or are within its jurisdiction, except those
			 private waters which do not combine or effect a junction with natural surface
			 or underground waters.
(18) Wet
			 weather discharge refers collectively to point source discharges that result
			 from precipitation events, such as rainfall and snowmelt. Wet weather
			 discharges include stormwater runoff, combined sewer overflows and wet weather
			 sanitary sewer overflows. Stormwater runoff accumulates pollutants such as oil
			 and grease, chemicals, nutrients, metals and bacteria as it travels across
			 land.