La. Admin. Code tit. 33 § V-106

Current through Register Vol. 50, No. 9, September 20, 2024

Section V-106 - Hazardous Waste Determination for Contaminated Media

A. Except as otherwise provided in this Section, environmental media that contain hazardous waste subject to regulation under LAC 33:V.4901 or LAC 33:V.4903, shall be managed as hazardous waste. An environmental medium (soil/sediment, surface water, or groundwater) no longer contains a hazardous waste when:

1. the concentration of the hazardous constituent that serves as the basis for the waste being listed as hazardous (as defined in LAC 33:V.109 or as determined by the department on a case-by-case basis, e.g., creosote) remaining in the medium meets the appropriate standards described in this Section; and

2. the medium no longer exhibits any of the characteristics of hazardous waste identified in LAC 33:V.4903. Land disposal treatment standards (LAC 33:V.2299) shall continue to apply to contaminated environmental media that are treated and then determined to no longer contain hazardous waste. Contaminated environmental media determined not to contain any hazardous waste prior to treatment are not subject to any RCRA Subtitle C requirement, including the standards in LAC 33:V.2299.

B. Nonhazardous Environmental Medium (NHEM) D etermination

1. Upon written request, the department may make a site-specific determination that an environmental medium contaminated with a listed hazardous waste at a concentration of the hazardous constituent at or below the level described in this Section no longer contains hazardous waste. Such a determination shall be known as a NHEM determination. A site-specific NHEM determination may be granted by the department contingent upon management of the environmental medium in accordance with any institutional control or other requirement described in the letter granting the request.

2. When a NHEM determination would be useful to expedite site remediation, a written request and payment of the fee in accordance with LAC 33:V.5147 may be submitted to the Office of Environmental Services. The request must demonstrate application of the process described in Paragraphs B.3-4 of this Section and that land disposal treatment standards are met when applicable.

3. A NHEM determination does not authorize the placement of contaminated media in, or establish remedial standards for, a particular area. Approval for placement of the contaminated medium in a specific area must be obtained from the Office of Environmental Services, unless it is otherwise allowed by regulation. Remedial standards for areas of contamination shall be established in accordance with the Risk Evaluation/Corrective Action Program (RECAP) as incorporated by reference in LAC 33:I.1307.

4. The identification, development, and application of the standards for media to be determined to no longer contain hazardous waste shall comply with the following process.

a. Determine the area of investigation (AOI). The AOI is a zone contiguous to and including impacted media, defined vertically and horizontally by the presence of one or more constituents in concentrations exceeding a limiting standard.

b. Identify the area of investigation concentration (AOIC). The AOIC is to be identified by the maximum detected concentration of the constituent of concern (COC) in the AOI or the upper bound estimate (e.g. upper confidence limit) of the arithmetic mean concentration of the COC.

NOTE: The department recommends that the upper bound estimate of the arithmetic mean concentration be identified as the concentration recommended by the ProUCL program, a software program available from EPA's Technical Support Center for Monitoring and Site Characterization (www.epa.gov/nerlesd1/tsc/form.htm).

c. Determine the soil standard (Soil_NHEM). The soil standards are presented in Table 1 of this Section. For a constituent not included in Table 1, the applicant shall calculate a value using the appropriate equation and input values from LAC 33:V.199.Appendix A. Compare the soil standard to the AOIC. If the AOIC detected for a COC does not exceed the soil standard, then a NHEM determination may be made.

d. Identify the groundwater exposure concentration (EC). The EC shall be identified as the maximum concentration of COC detected in the groundwater AOI.

e. Determine the groundwater standard (GW_NHEM). The groundwater standards are presented in Table 1 of this Section. If a detected groundwater constituent cannot be found in Table 1, then the maximum contaminant level (MCL), contained in the National Primary Drinking Water regulations ( 40 CFR Part 141), multiplied by 100 is to be used as the groundwater standard. If an MCL is not available then a groundwater standard is to be calculated in accordance with appropriate equations and input values from LAC 33:V.199.Appendix A. Compare the groundwater EC to the groundwater standard. If quantitative values for constituents are less than the limiting standards, the groundwater may qualify for a NHEM determination.

Table 1
Soil and Groundwater Standards
Compound	CAS #	Soil_NHEM (mg/kg)	GW_NHEM (mg/l)
Acenaphthene	83-32-9	6.1E+05	3.7E+02
Acenaphthylene	208-96-8	5.1E+05	3.7E+02
Acetone	67-64-1	1.4E+05	6.1E+02
Aldrin	309-00-2	1.3E+00	3.9E-03
Aniline	62-53-3	1.7E+03	1.2E+01
Anthracene	120-12-7	1.0E+06	1.8E+03
Antimony	7440-36-0	8.2E+03	6.0E-01
Arsenic	7440-38-2	2.7E+01	1.0E+00
Barium	7440-39-3	1.0E+06	2.0E+02
Benzene	71-43-2	3.1E+01	5.0E-01
Benz(a)anthracene	56-55-3	2.9E+01	9.1E-02
Benzo(a)pyrene	50-32-8	2.9E+00	2.0E-02
Benzo(b)fluoranthene	205-99-2	2.9E+01	9.1E-02
Benzo(k)fluoranthene	207-08-9	2.9E+02	9.1E-01
Beryllium	7440-41-7	4.1E+04	4.0E-01
Biphenyl,1,1-	92-52-4	4.4E+05	3.0E+02
Bis(2-chloroethyl)ether	111-44-4	1.1E+01	9.6E-03
Bis(2-chloroisopropyl)ether	108-60-1	1.7E+02	2.7E-01
Bis(2-ethyl-hexyl)phthalate	117-81-7	1.7E+03	6.0E-01
Bromodichloromethane	75-27-4	4.2E+01	1.0E+01
Bromoform	75-25-2	1.8E+03	1.0E+01
Bromomethane	74-83-9	3.0E+02	8.7E+00
Butyl benzyl phthalate	85-68-7	1.0E+06	7.3E+03
Cadmium	7440-43-9	1.0E+04	5.0E-01
Carbon Disulfide	75-15-0	2.5E+04	1.0E+03
Carbon Tetrachloride	56-23-5	1.1E+01	5.0E-01
Chlordane	57-74-9	1.0E+02	2.0E-01
Chloroaniline,p-	106-47-8	1.7E+04	1.5E+02
Chlorobenzene	108-90-7	1.2E+04	1.0E+01
Chlorodibromomethane	124-48-1	5.4E+01	1.0E+01
Chloroethane (Ethylchloride)	75-00-3	8.2E+01	3.8E+00
Chloroform	67-66-3	1.2E+01	1.0E+01
Chloromethane	74-87-3	7.3E+01	1.5E+00
Chloronaphthalene,2-	91-58-7	8.3E+05	4.9E+02
Chlorophenol,2-	95-57-8	1.4E+04	3.0E+01
Chromium(III)	16065-83-1	1.0E+06	1.0E+01
Chromium(VI)	18540-29-97	6.1E+04	1.0E+01
Chrysene	218-01-9	2.9E+03	9.1E+00
Cobalt	7440-48-4	1.0E+06	2.2E+03
Copper	7440-50-8	8.2E+05	1.3E+02
Cyanide (free)	57-12-5	3.6E+05	2.0E+01
DDD	72-54-8	1.6E+02	2.8E-01
DDE	72-55-9	1.1E+02	2.0E-01
DDT	50-29-3	1.2E+02	2.0E-01
Dibenz(a,h)anthracene	53-70-3	2.9E+00	9.1E-03
Dibenzofuran	132-64-9	6.5E+04	2.4E+01
Dibromo-3-chloropropane,1,2-	96-12-8	1.8E+01	2.0E-02
Dichlorobenzene,1,2-	95-50-1	7.4E+04	6.0E+01
Dichlorobenzene,1,3-	541-73-1	1.8E+03	5.5E+00
Dichlorobenzene,1,4-	106-46-7	1.6E+02	7.5E+00
Dichlorobenzidine,3,3-	91-94-1	4.2E+01	1.5E-01
Dichloroethane,1,1-	75-34-3	4.7E+04	8.1E+02
Dichloroethane,1,2-	107-06-2	1.8E+01	5.0E-01
Dichloroethene,1,1-	75-35-4	9.1E+03	7.0E-01
Dichloroethene,cis,1,2-	156-59-2	3.4E+03	7.0E+00
Dichloroethene,trans,1,2-	156-60-5	4.8E+03	1.0E+01
Dichlorophenol,2,4-	120-83-2	2.0E+04	1.1E+02
Dichloropropane,1,2-	78-87-5	1.8E+01	5.0E-01
Dichloropropene,1,3-	542-75-6	1.0E+02	3.9E-01
Dieldrin	60-57-1	1.5E+00	4.1E-03
Diethylphthalate	84-66-2	1.0E+06	2.9E+04
Dimethylphenol,2,4-	105-67-9	1.1E+05	7.3E+02
Dimethylphthalate	131-11-3	1.0E+06	3.7E+05
Di-n-octylphthalate	117-84-0	3.5E+05	1.5E+03
Dinitrobenzene,1,3-	99-65-0	5.0E+02	3.7E+00
Dinitrophenol,2,4-	51-28-5	6.9E+03	7.3E+01
Dinitrotoluene,2,6-	606-20-2	4.6E+03	3.7E+01
Dinitrotoluene,2,4-	121-14-2	9.8E+03	7.3E+01
Dinoseb	88-85-7	5.4E+03	7.0E-01
Endosulfan	115-29-7	4.5E+04	2.2E+02
Endrin	72-20-8	2.5E+03	2.0E-01
Ethyl benzene	100-41-4	1.3E+05	7.0E+01
Fluoranthene	206-44-0	2.9E+05	1.5E+03
Fluorene	86-73-7	5.4E+05	2.4E+02
Heptachlor	76-44-8	3.5E-01	4.0E-02
Heptachlor epoxide	1024-57-3	2.6E+00	2.0E-02
Hexachlorobenzene	118-74-1	2.0E+01	1.0E-01
Hexachlorobutadiene	87-68-3	1.6E+02	8.5E-01
Hexachlorocyclohexane,alpha	319-84-6	4.4E+00	1.1E-02
Hexachlorocyclohexane,beta	319-85-7	1.6E+01	3.7E-02
Hexachlorocyclohexane,gamma	58-89-9	2.0E+01	2.0E-02
Hexachlorocyclopentadiene	77-47-4	9.4E+02	5.0E+00
Hexachloroethane	67-72-1	1.4E+03	7.9E-01
Indeno(1,2,3-cd)pyrene	193-39-5	2.9E+01	9.1E-02
Isobutyl alcohol	78-83-1	6.2E+05	1.1E+04
Isophorone	78-59-1	1.1E+04	7.0E+01
Lead (inorganic)	7439-92-1	3.4E+04	1.5E+00
Mercury (inorganic)	7487-94-7	6.1E+03	2.0E-01
Methoxychlor	72-43-5	4.3E+04	4.0E+00
Methylene chloride	75-09-2	4.4E+02	5.0E-01
Methyl ethyl ketone	78-93-3	4.4E+05	1.9E+03
Methyl isobutyl ketone	108-10-1	6.3E+05	2.0E+03
Methylnaphthalene,2-	91-57-6	1.7E+04	6.2E+00
MTBE (methyl tert-butyl ether)	1634-04-4	4.7E+05	2.0E+00
Naphthalene	91-20-3	4.3E+03	6.2E+00
Nickel	7440-02-0	4.1E+05	7.3E+02
Nitrate	14797-55-8	1.0E+06	1.0E+03
Nitrite	14797-65-0	1.0E+06	1.0E+02
Nitroaniline,2-	88-74-4	5.2E+01	2.1E-01
Nitroaniline,3-	99-09-2	1.4E+04	1.8E+01
Nitroaniline,4-	100-01-6	1.0E+04	1.1E+02
Nitrobenzene	98-95-3	2.5E+03	3.4E+00
Nitrophenol,4-	100-02-7	3.3E+04	2.9E+02
Nitrosodi-n-propylamine,n-	621-64-7	1.4E+00	9.5E-03
N-nitrosodiphenylamine	86-30-6	4.0E+03	1.4E+01
Pentachlorophenol	87-86-5	9.7E+01	1.0E-01
Phenanthrene	85-01-8	1.0E+06	1.8E+03
Phenol	108-95-2	1.0E+06	1.8E+03
Polychlorinated biphenyls	1336-36-3	9.0E+00	5.0E-02
Pyrene	129-00-0	5.6E+05	1.8E+02
Selenium	7782-49-2	1.0E+05	5.0E+00
Silver	7440-22-4	1.0E+05	1.8E+02
Styrene	100-42-5	4.3E+05	1.0E+01
Tetrachlorobenzene,1,2,4,5-	95-94-3	1.2E+03	1.1E+01
Tetrachloroethane,1,1,1,2-	630-20-6	5.9E+01	4.3E-01
Tetrachloroethane,1,1,2,2-	79-34-5	2.0E+01	5.5E-02
Tetrachloroethylene	127-18-4	3.5E+02	5.0E-01
Tetrachlorophenol,2,3,4,6-	58-90-2	1.7E+05	1.1E+03
Thallium	7440-28-0	1.4E+03	2.0E-01
Toluene	108-88-3	4.7E+04	1.0E+02
Toxaphene	8001-35-2	2.2E+01	3.0E-01
Trichlorobenzene,1,2,4-	120-82-1	1.2E+05	7.0E+00
Trichloroethane,1,1,1-	71-55-6	7.0E+04	2.0E+01
Trichloroethane,1,1,2-	79-00-5	4.3E+01	5.0E-01
Trichloroethene	79-01-6	2.1E+00	5.0E-01
Trichlorofluoromethane	75-69-4	2.6E+04	1.3E+03
Trichlorophenol,2,4,5-	95-95-4	6.6E+05	3.7E+03
Trichlorophenol,2,4,6-	88-06-2	1.7E+03	6.0E+00
Vanadium	7440-62-2	1.4E+05	2.6E+02
Vinyl chloride	75-01-4	7.9E+00	2.0E-01
Xylene(mixed)	1330-20-7	1.2E+04	1.0E+03
Zinc	7440-66-6	1.0E+06	1.1E+04
Aliphatics C6-C8	NA	1.0E+04	3.2E+04
Aliphatics >C8-C10	NA	1.0E+04	1.3E+03
Aliphatics >C10-C12	NA	1.0E+04	1.4E+03
Aliphatics >C12-C16	NA	1.0E+04	1.4E+03
Aliphatics >C16-C35	NA	1.0E+04	7.3E+04
Aromatics >C8-C10	NA	1.0E+04	3.4E+02
Aromatics >C10-C12	NA	1.0E+04	3.4E+02
Aromatics >C12-C16	NA	1.0E+04	3.4E+02
Aromatics >C16-C21	NA	1.0E+04	1.1E+03
Aromatics >C21-C35	NA	1.0E+04	1.1E+03
TPH-GRO (C6-C10)	NA	1.0E+04	3.4E+02
TPH-DRO (C10-C28)	NA	1.0E+04	3.4E+02
TPH-ORO (C28)	NA	1.0E+04	1.1E+03

La. Admin. Code tit. 33, § V-106

Promulgated by the Office of the Secretary, Legal Affairs Division, LR 33:450 (March 2007), amended LR 33:2098 (October 2007).

AUTHORITY NOTE: Promulgated in accordance with R.S. 30:2180 et seq. and, in particular, 2186(A)(2).