Ohio Administrative Code › Title 901:10 - Livestock Environmental Permitting › Chapter 901:10-2 - Permits; Management Plans › Section 901:10-2-06 - Manure storage pond and manure treatment lagoon

Current through all regulations passed and filed through July 1, 2024
(A) A manure storage pond or manure treatment
			 lagoon subject to this rule shall be designed and the plans stamped by a
			 professional engineer. The following design and construction criteria shall be
			 followed:
(1) An exploratory trench shall be
			 excavated a minimum of four feet below natural grade to investigate for
			 subsurface drainage lines in the immediate area of the manure storage pond or
			 manure treatment lagoon. Any lines found shall be removed or relocated to
			 provide for a minimum separation distance of not less than fifty feet between
			 the top inner perimeter of the manure storage pond or manure treatment lagoon
			 and the subsurface drainage line unless the subsurface drainage line is
			 necessary to comply with paragraph (A)(9)(a) of this rule.
(2) If not already installed at the facility,
			 a liquid level board, staff gauge, depth marker, or other appropriate device,
			 approved by the director, shall be installed within the interior of the liquid
			 manure storage pond or manure treatment lagoon to monitor manure levels. This
			 device shall indicate levels every one foot in vertical elevation and shall
			 indicate levels as described in paragraph (D)(1) of rule
			 901:10-2-08
			 of the Administrative Code.
(3)
			 Agitation and pump-out points shall be shown on plans for a manure storage pond
			 and a manure treatment lagoon with scour protection required.
(4) An emergency spillway may be included at
			 the one foot freeboard level and shall be directed to a specifically designed
			 filter strip or infiltration areas if the facility is constructed with an
			 earthen embankment.
(5)
			 Embankments.
(a) The minimum embankment top
			 width shall be eight feet for embankments less than fifteen feet, ten feet for
			 embankments ranging in height from fifteen to less than twenty feet, and twelve
			 feet for embankments ranging from twenty to twenty-five feet high, as measured
			 from the low point on the downstream toe to the top of the dam.
(b) If the embankment is to be traversed by
			 farm equipment, the minimum top width shall be twelve feet. The height of the
			 embankment shall be no greater than twenty-five feet, as measured from the low
			 point on the downstream toe to the top of the dam.
(c) Embankments shall have side slopes not
			 steeper than two horizontal to one vertical.
(d) The combined side slopes of settled
			 embankments shall not be less than five horizontal to one vertical.
(e) Vegetative cover shall be established on
			 any exposed embankment and mowed or otherwise maintained to control erosion or
			 other embankment deterioration. In the alternative, the director may approve
			 other means or materials to control erosion.
(6) Inlets and outlets.
(a) Inlets shall be designed to resist
			 corrosion, plugging and freezing.
(b) The embankment may contain no outlet
			 piping that extends through the embankment unless the piping discharges to
			 another facility or is a component of a re-circulating flush system.
(c) All pipes for manure transfer or manure
			 flush systems shall have watertight joints in accordance with the following
			 ASTM standards:
(i) ASTM D3212-standard
			 specification for joints for drain and sewer plastic pipes using flexible
			 elastometric seals; or
(ii) ASTM
			 C443-standard specification for joints for concrete pipe and manholes, using
			 rubber gaskets; or
(iii) Other
			 standards recommended by the professional engineer and approved by the
			 department.
(7)
			 Storage period.
The minimum storage period of manure for a manure storage pond
				and manure treatment lagoon shall be one hundred eighty days of manure
				production unless alternative use and design is otherwise approved by the
				department. This section is not intended to address the surface water runoff
				where the runoff does not enter into the pond or lagoon.
(8) Freeboard.
Freeboard shall be provided for a manure storage pond and
				manure treatment lagoon in addition to the total storage volume such that the
				elevation of the emergency spillway or top of the settled embankment, if there
				is no designed emergency spillway, shall be less than the level that provides
				adequate storage to contain a precipitation event as required in rules
				901:10-3-02
				to
				901:10-3-06
				of the Administrative Code, plus an additional one foot of
				freeboard.
(9) Liners.
The owner or operator shall include the use of a liner as part
				of the manure storage pond or manure treatment lagoon that achieves a hydraulic
				conductivity of at least one times ten to the minus seven centimeters per
				second (1 X 10 -7 cm/sec) to insure the integrity of the manure storage pond or
				manure treatment lagoon. A minimum of three feet of in situ soils with a
				hydraulic conductivity of one times ten to the minus seven centimeters per
				second will satisfy this requirement. The following design and construction
				criteria shall be followed:
(a) Ground
			 water seepage shall be prevented from entering the bottom of the manure storage
			 pond or manure treatment lagoon after construction by installing and/or
			 maintaining a liner with a minimum liner thickness of three feet of in situ
			 soil between the top of the seasonal high ground water surface and the bottom
			 of the manure storage pond or manure treatment lagoon. In order to meet this
			 requirement the ground water surface may be lowered by use of subsurface
			 drainage lines that are properly designed by the engineering geologist or
			 professional engineer and approved by the director.
(b) Soil liners shall be designed and
			 constructed using procedures in section 651.1080 of the "United States
			 Department of Agriculture, Natural Resources Conservation Service Agricultural
			 Waste Management Field Handbook, Chapter Ten, Geotechnical Design and
			 Construction, August 2009," and "United States Department of Agriculture, Ohio
			 Natural Resources Conservation Service, Section IV, Field Office Technical
			 Guide Conservation Practice Standard 521-D, Pond Sealing and Lining, Compacted
			 Earth Treatment. January 2010." Both procedures are available for review at the
			 Ohio department of agriculture website
http://agri.ohio.gov/
. A soil liner
			 thickness shall be a minimum of three feet.
(c) Design and construction alternatives for
			 ground water protection.
(i) As a result of
			 the subsurface geological exploration conducted pursuant to rule
			 901:10-2-03
			 of the Administrative Code and the findings of the report submitted in
			 accordance with that rule, an engineering geologist, professional engineer or
			 the director may determine that installation of an additional liner is required
			 to insure the integrity of the manure storage pond or manure treatment lagoon
			 and to protect groundwater.
(ii) If
			 an additional or alternative liner protection is required as set forth in
			 paragraph (A)(9)(c)(i) of this rule, then one or more of the following may be
			 required by the director:
(a) Concrete liners
			 that have a minimum thickness of five inches and shall include non-metallic
			 water stops for all joints;
(b)
			 Flexible plastic membranes that are installed under the supervision of the
			 manufacturer or the manufacturer's representative and include written
			 certification that the liner was installed in accordance with the manufacturers
			 recommendations.
(c) Geosynthetic
			 clay liners that are installed under the supervision of the manufacturer or the
			 manufacturer's representative and include written certification that the liner
			 was installed in accordance with the manufacturer's recommendations;
			 or
(d) Other liner designs or
			 materials will be considered at the discretion of the director if the minimum
			 criteria of this paragraph of this rule are met.
(10) Design and
			 construction criteria for a manure storage pond or manure treatment lagoon
			 located in a karst area.
(a) Manure storage
			 ponds or manure treatment lagoons may be constructed within a karst area
			 provided that the facility is designed to prevent seepage of manure to
			 groundwater.
(b) Any portion of a
			 manure storage pond or manure treatment lagoon located below the
			 pre-construction soil surface level and constructed in a karst area shall be
			 designed and constructed utilizing a rigid material such as concrete or steel
			 or a properly designed clay or synthetic liner, when appropriate, upon findings
			 in the geologic exploration.
(11) Manure treatment lagoons shall be
			 designed in accordance with the methods set forth in the appendix to this rule.
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