Ohio Administrative Code
Title 3745 - Ohio Environmental Protection Agency
Chapter 3745-266 - Disposal Standards
Section 3745-266-112 - Regulation of residues

(a) Normal residue. Concentrations of toxic constituents of concern in normal residue shall be determined based on analyses of a minimum of ten samples representing a minimum of ten days of operation. Composite samples may be used to develop a sample for analysis provided that the compositing period does not exceed twenty-four hours. The upper tolerance limit (at ninety-five per cent confidence with a ninety-five per cent proportion of the sample distribution) of the concentration in the normal residue shall be considered the statistically-derived concentration in the normal residue. If changes in raw materials or fuels reduce the statistically-derived concentrations of the toxic constituents of concern in the normal residue, the statistically-derived concentrations shall be revised or statistically-derived concentrations of toxic constituents in normal residue shall be established for a new mode of operation with the new raw material or fuel. To determine the upper tolerance limit in the normal residue, the owner or operator shall use statistical procedures prescribed in "Statistical Methodology for Bevill Residue Determinations" in the appendix to rule 3745-266-103 of the Administrative Code.

(b) Waste-derived residue. Waste-derived residue shall be sampled and analyzed as often as necessary to determine whether the residue generated during each twenty-four-hour period has concentrations of toxic constituents that are higher than the concentrations established for the normal residue under paragraph (B)(1)(a) of this rule. If so, hazardous waste burning has significantly affected the residue and the residue shall not be excluded from the definition of a " hazardous waste." Concentrations of toxic constituents of concern in the waste-derived residue shall be determined based on analysis of one or more samples obtained over a twenty-four-hour period. Multiple samples may be analyzed, and multiple samples may be taken to form a composite sample for analysis provided that the sampling period does not exceed twenty-four hours. If more than one sample is analyzed to characterize waste-derived residues generated over a twenty-four-hour period, the concentration of each toxic constituent shall be the arithmetic mean of the concentrations in the samples. No results may be disregarded; or

(a) Nonmetal constituents. The concentration of each nonmetal toxic constituent of concern [specified in paragraph (B)(1) of this rule] in the waste-derived residue shall not exceed the health-based level specified in appendix A to this rule, or the level of detection , whichever is higher. If a health-based limit for a constituent of concern is not listed in appendix A to this rule, then a limit of 0.002 micrograms per kilogram or the level of detection (which shall be determined by using appropriate analytical procedures), whichever is higher, shall be used. The levels specified in appendix A to this rule (and the default level of 0.002 micrograms per kilogram or the level of detection for constituents as identified in Footnote 1 of appendix A to this rule) are administratively stayed by U.S. EPA, under the condition, for those constituents specified in paragraph (B)(1) of this rule, that the owner or operator complies with alternative levels defined as the land disposal restriction limits specified in rule 3745-270-40 of the Administrative Code for F039 nonwastewaters. Ohio EPA will interpret this rule consistent with U.S. EPA's administrative stay. In complying with those alternative levels, if an owner or operator is unable to detect a constituent despite documenting use of best goodfaith efforts as defined by applicable agency guidance or standards, the owner or operator is deemed to be in compliance for that constituent. Until new guidance or standards are developed, the owner or operator may demonstrate such good-faith efforts by achieving a detection limit for the constituent that does not exceed an order of magnitude above the level provided by rule 3745-270-40 of the Administrative Code for F039 nonwastewaters. In complying with the rule 3745-270-40 of the Administrative Code for F039 nonwastewater levels for polychlorinated dibenzo-p-dioxins and polychlorinated dibenzo-furans, analyses shall be performed for total hexachlorodibenzo-p-dioxins, total hexachlorodibenzofurans, total pentachlorodibenzo-p-dioxins, total pentachlorodibenzofurans, total tetrachlorodibenzo-p-dioxins, and total tetrachlorodibenzofurans.

[ Comment: The U.S. EPA administrative stay, under the condition that the owner or operator complies with alternative levels defined as the land disposal restriction limits specified in rule 3745-270-40 of the Administrative Code for F039 nonwastewaters, remains in effect until further administrative action is taken and notice is published in the Federal Register and the Code of Federal Regulations. Ohio EPA will interpret this rule consistent with U.S. EPA's administrative stay.]

(b) Metal constituents. The concentration of metals in an extract obtained using the toxicity characteristic leaching procedure of rule 3745-51-24 of the Administrative Code shall not exceed the levels specified in appendix A to this rule; and

(c) Sampling and analysis. Waste-derived residue shall be sampled and analyzed as often as necessary to determine whether the residue generated during each twenty-four-hour period has concentrations of toxic constituents that are higher than the health-based levels. Concentrations of toxic constituents of concern in the waste-derived residue shall be determined based on analysis of one or more samples obtained over a twenty-four-hour period. Multiple samples may be analyzed, and multiple samples may be taken to form a composite sample for analysis provided that the sampling period does not exceed twenty-four hours. If more than one sample is analyzed to characterize waste-derived residues generated over a twenty-four-hour period, the concentration of each toxic constituent shall be the arithmetic mean of the concentrations in the samples. No results may be disregarded; and

(a) The levels of constituents in the appendix to rule 3745-51-11 of the Administrative Code that are present in normal residues; and

(b) Data and information, including analyses of samples as necessary, obtained to determine if changes in raw materials or fuels would reduce the concentration of toxic constituents of concern in the normal residue.

[Comment: For dates of non-regulatory government publications, publications of recognized organizations and associations, federal rules, and federal statutory provisions referenced in this rule, see rule 3745-50-11 of the Administrative Code titled "Incorporated by reference."]

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