La. Admin. Code tit. 33 § V-199

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

Section V-199 - Appendices-Appendices A and B

A. Appendix A- Equations for the Development of Soil and Groundwater Standards

Soil_NHEM-Carcinogenic Effects-Organic Constituents (mg/kg):

(EQ1)

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Parameter	Definition (units)	Input Value
SoilNHEM	NHEM industrial risk-based chemical concentration in soil/ sediment (mg/kg)	--
TR	Target excess individual lifetime cancer risk (unitless)	10-5
SFo	Oral cancer slope factor ((mg/kg-day)-1)	CSa
SFi	Inhalation cancer slope factor ((mg/kg-day)-1)	CSa
BWa	Average adult body weight (kg)	70b
ATc	Averaging time -carcinogens (yr)	70b
EFi	Industrial exposure frequency (days/yr)	250b
EDi	Industrial exposure duration (yr)	25b
IRSi	Industrial soil ingestion rate (mg/day)	50b
IRAa	Adult inhalation rate (m3/day)	20c
VFi	Industrial soil-to-air volatilization factor (m3/kg)	CSd
SAi	Skin surface area for an industrial worker (cm2/day)	3,300c
AFi	Soil-to-skin adherence factor for an industrial worker (mg/cm2)	0.2c
ABS	Dermal absorption factor (unitless)	CSc

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Soil Screening Guidance: User's Guide , EPA 1996.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) , EPA/540/R-99/005.

^d Chemical-specific; refer to EQ5.

^e Chemical-specific; refer to Table A-1.

Soil_NHEM-Carcinogenic Effects-Inorganic Constituents (mg/kg):

(EQ2)

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Parameter	Definition (units)	Input Value
Soil NHEM	NHEM industrial risk-based chemical concentration in soil/ sediment (mg/kg)	--
TR	Target excess individual lifetime cancer risk (unitless)	10 -5
SF o	Oral cancer slope factor ((mg/kg-day)-1)	CS b
BW a	Average adult body weight (kg)	70 b
AT c	Averaging time - carcinogens (yr)	70 b
EF i	Industrial exposure frequency (days/yr)	250 b
ED i	Industrial exposure duration (yr)	25 b
IRS i	Industrial soil ingestion rate (mg/day)	50 b
SA i	Skin surface area for an industrial worker (cm2/day)	3,300 c
AF i	Soil-to-skin adherence factor for an industrial worker (mg/cm2)	0.2 c
ABS	Dermal absorption factor (unitless)	CS d

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Soil Screening Guidance: User's Guide , EPA 1996.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment), EPA/540/R-99/005.

^d Chemical-specific; refer to EQ5.

^e Chemical-specific; refer to Table A-1.

Soil_NHEM-Noncarcinogenic Effects-Organic Constituents (mg/kg):

(EQ3)

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Parameter	Definition (units)	Input Value
SoilNHEM	NHEM industrial risk-based chemical concentration in soil/ sediment (mg/kg)	--
THQ	Target hazard quotient (unitless)	10
RfDo	Oral reference dose (mg/kg-day)	CSa
RfDi	Inhalation reference dose (mg/kg-day)	CSa
BWa	Average adult body weight (kg)	70b
ATni	Averaging time-noncarcinogens, industrial (yr)	25b
EFi	Industrial exposure frequency (days/yr)	250b
EDi	Industrial exposure duration (yr)	25b
IRSi	Industrial soil ingestion rate (mg/day)	50b
IRAa	Adult inhalation rate (m3/day)	20c
VFi	Industrial soil-to-air volatilization factor (m3/kg)	CSd
SAi	Skin surface area for an industrial worker (cm2/day)	3,300c
AFi	Soil-to-skin adherence factor for an industrial worker (mg/cm2)	0.2c
ABS	Dermal absorption factor (unitless)	CSc

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Soil Screening Guidance: User's Guide , EPA 1996.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) , EPA/540/R-99/005.

^d Chemical-specific; refer to EQ5.

^e Chemical-specific; refer to Table A-1.

Soil_NHEM-Noncarcinogenic Effects-Inorganic Constituents (mg/kg):

(EQ4)

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Parameter	Definition (units)	Input Value
SoilNHEM	NHEM industrial risk-based chemical concentration in soil/ sediment (mg/kg)	--
THQ	Target hazard quotient (unitless)	10
RfDo	Oral reference dose (mg/kg-day)	CSa
BWa	Average adult body weight (kg)	70b
ATni	Averaging time - noncarcinogens, industrial (yr)	70b
EFi	Industrial exposure frequency (days/yr)	250b
EDi	Industrial exposure duration (yr)	25b
IRSi	Industrial soil ingestion rate (mg/day)	50b
SAi	Skin surface area for an industrial worker (cm2/day)	3,300c
AFi	Soil-to-skin adherence factor for an industrial worker (mg/cm2)	0.2c
ABS	Dermal absorption factor (unitless)	CSd

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Soil Screening Guidance: User's Guide , EPA 1996.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) , EPA/540/R-99/005.

^d Chemical-specific; refer to EQ5.

^e Chemical-specific; refer to Table A-1.

VF_i-Volatilization Factor-Organic Constituents (m³/kg):

(EQ5)

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where:

(EQ6)

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Parameter	Definition (units)	Input Value
VFi	Industrial soil-to-air volatilization factor (m3/kg)	--
DA	Apparent diffusivity (cm2/s)	--
Q/C	Inverse of the mean concentration at the center of source (g/m2-s per kg/m3)	79.25
T	Exposure interval -industrial (s)	7.9E+08a
p b	Dry soil bulk density (g/cm3)	1.7b
[THETA] a	Air-filled soil porosity (Lair/Lsoil)	n-[THETA]w
n	Total soil porosity (Lpore/Lsoil)	1 - (pb/ps)
[THETA] w	Water-filled soil porosity (Lwater/Lsoil)	0.21b
p s	Soil particle density (g/cm3)	2.65b
Di	Diffusivity in air (cm2/s)	CSc
H'	Henry's Law Constant (dimensionless)	CSc,d
Dw	Diffusivity in water (cm2/s)	CSc
Kd	Soil-water partition coefficient (cm3/g) = Koc x foc	CSc
Koc	Soil organic carbon partition coefficient (cm3/g)	CSc
foc	Fractional organic carbon in soil (g/g) = percent organic matter/174 (ASTM 2974)	0.006b

^a Soil Screening Guidance: User's Guide , EPA 1996.

^b LDEQ default value.

^c Chemical-specific.

^d H' = H x 41 where: H = Henry's Law Constant (atm-m³/mol); R = Universal Law Constant (0.0000821 atm-m³/mole- ^oK); and T = Absolute temperature of soil (^oK) [273 + ^oC (25^oC)].

Table A-1
Dermal Absorption Factors 1
Constituent	ABS (unitless)
Arsenic	0.03
Cadmium	0.001
Chlordane	0.04
2,4-D	0.05
DDT	0.03
Gamma-hexachlorocyclohexane	0.04
TCDD	0.03
Pentachlorophenol	0.25
Polychlorinated biphenyls	0.14
Polycyclic aromatic hydrocarbons	0.13
Other semivolatile organic constituents	0.10
Other inorganic constituents (metals)	0
Volatile constituents	0

¹ Risk Assessment Guidance for Superfund Volume I: Human Health Evaluation Manual (Part E, Supplemental Guidance for Dermal Risk Assessment) , Interim Guidance. EPA 2004. EPA/540/R-99/005.

GW_NHEM-Carcinogenic Effects-Volatile Constituents (mg/l):

(EQ7)

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Parameter	Definition (units)	Input Value
GWNHEM	NHEM chemical concentration in groundwater (mg/l)	--
TR	Target excess individual lifetime cancer risk (unitless)	10-5
SFo	Oral cancer slope factor ((mg/kg-day)-1)	CSa
SFi	Inhalation cancer slope factor ((mg/kg-day)-1)	CSa
ATc	Averaging time -carcinogens (yr)	70b
EFni	Industrial exposure frequency (days/yr)	350b
IRWadj	Age-adjusted water ingestion rate (L-yr/kg-day)	1.1b
IRAadj	Age-adjusted inhalation rate (m3-yr/kg-day)	11b
Kw	Water-to-indoor air volatilization factor (L/m3)	0.5c,d
DF	Dilution and Attenuation Factor (unitless)	100c

^a Chemical-specific: refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Human Health Medium-Specific Screening Levels, EPA Region VI, 2003.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part B, Development of Risk-Based Preliminary Remedial Goals) , EPA 1991.

^d The water-air concentration relationship represented by the volatilization factor (K_w) is applicable only to chemicals with a Henry's Law Constant of greater than 1E-05 atm-m³/mole and a molecular weight of less than 200 g/mole.

GW_NHEM-Noncarcinogenic Effects-Volatile Constituents (mg/l):

(EQ8)

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Parameter	Definition (units)	Input Value
GWNHEM	NHEM chemical concentration in groundwater (mg/l)	--
THQ	Target hazard quotient (unitless)	10
RfDi	Inhalation reference dose (mg/kg-day)	CSa
RfDo	Oral reference dose (mg/kg-day)	CSa
BWa	Average adult body weight (kg)	70b
ATnni	Averaging time -noncarcinogens, non-industrial (yr)	30b
EFni	Non-industrial exposure frequency (days/yr)	350b
EDni	Industrial exposure duration (yr)	30b
IRWa	Adult water ingestion rate (L/day)	20b
IRAa	Adult inhalation rate (m3/day)	20b
Kw	Water-to-indoor air volatilization factor (L/m3)	0.5c,d
DF	Dilution Factor (unitless)	100

^a Chemical-specific: refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Human Health Medium-Specific Screening Levels, EPA Region VI, 2003.

^c Risk Assessment Guidance for Superfund Volume I Human Health Evaluation Manual (Part B, Development of Risk-Based Preliminary Remedial Goals) , EPA 1991.

^d The water-air concentration relationship represented by the volatilization factor (K_w) is applicable only to chemicals with a Henry's Law Constant of greater than 1E-05 atm-m³/mole and a molecular weight of less than 200 g/mole.

GW_NHEM-Carcinogenic Effects-Non-Volatile Constituents (mg/l):

(EQ9)

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Parameter	Definition (units)	Input Value
GWNHEM	NHEM chemical concentration in groundwater (mg/l)	--
TR	Target excess individual lifetime cancer risk (unitless)	10-5 a
SFo	Oral cancer slope factor ((mg/kg-day)-1)	CSb
ATc	Averaging time -carcinogens (yr)	70a
EFni	Non-industrial exposure frequency (days/yr)	350a
IRWadj	Age-adjusted water ingestion rate (L-yr/kg-day)	1.1a
DF	Dilution Factor (unitless)	100

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Human Health Medium-Specific Screening Levels, EPA Region VI, 2003.

GW_NHEM-Noncarcinogenic Effects-Non-Volatile Constituents (mg/l):

(EQ10)

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Parameter	Definition (units)	Input Value
GWNHEM	NHEM chemical concentration in groundwater (mg/l)	--
THQ	Target hazard quotient (unitless)	10
RfDo	Oral reference dose (mg/kg-day)	CSa
BWa	Average adult body weight (kg)	70b
ATnni	Averaging time -noncarcinogens, non-industrial (yr)	30b
EFni	Non-industrial exposure frequency (days/yr)	350b
EDni	Non-industrial exposure duration (yr)	30b
IRWa	Adult water ingestion rate (L/day)	2b
DF	Dilution Factor (unitless)	100

^a Chemical-specific; refer to EPA's Integrated Risk Information System (http://www.epa.gov/iris/subst/index.html) or other appropriate EPA reference.

^b Human Health Medium-Specific Screening Levels, EPA Region VI, 2003.

B. Appendix B- Examples of Potentially Incompatible Waste¹

1. Many hazardous wastes, when mixed with other waste or materials at a hazardous waste facility, can produce effects that are harmful to human health and the environment, such as:

a. heat or pressure;

b. fire or explosion;

c. violent reaction;

d. toxic dusts, mists, fumes, or gases; or

e. flammable fumes or gases.

2. Paragraph 5 of this Appendix contains examples of potentially incompatible wastes, waste components, and materials, along with the harmful consequences that result from mixing materials in one group with materials in another group. Paragraph 5 is intended as a guide to owners or operators of treatment, storage, and disposal facilities, and to enforcement and permit-granting officials, to indicate the need for special precautions when managing these potentially incompatible waste materials or components.

3. The tables in Paragraph 5 are not intended to be exhaustive. An owner or operator must, as the regulations require, adequately analyze his wastes so that he can avoid creating uncontrolled substances or reactions of the types listed in Paragraph 5, whether they are listed in Paragraph 5 or not.

4. It is possible for potentially incompatible wastes to be mixed in a way that precludes a reaction (e.g., adding acid to water rather than water to acid) or that neutralizes them (e.g., a strong acid mixed with a strong base), or that controls substances produced (e.g., by generating flammable gases in a closed tank equipped so that ignition cannot occur, and burning the gases in an incinerator).

5. In the tables below, the mixing of a Group A material with a Group B material may have the potential consequence as noted.

Group 1 Materials

Group 1-A:

Acetylene sludge

Alkaline caustic liquids

Alkaline cleaner

Alkaline corrosive liquids

Alkaline corrosive battery fluid

Caustic wastewater

Lime sludge and other corrosive alkalis

Lime wastewater

Lime and water

Spent caustic

Group 1-B:

Acid sludge

Acid and water

Battery acid

Chemical cleaners

Electrolyte, acid

Etching acid liquid or solvent

Pickling liquor and other corrosive acids

Spent acid

Spent mixed acid

Spent sulfuric acid

Potential Consequences:

Heat generation or violent reaction

Group 2 Materials

Group 2-A:

Aluminum

Beryllium

Calcium

Lithium

Magnesium

Potassium

Sodium

Zinc powder

Other reactive metals and metal hydrides

Group 2-B:

Any waste in Group 1-A or 1-B

Potential Consequences:

Fire or explosion; generation of flammable hydrogen gas

Group 3 Materials

Group 3-A:

Alcohols

Water

Group 3-B:

Any concentrated waste in Group 1-A or 1-B

Calcium

Lithium

Metal hydrides

Potassium

SO2Cl2, SOCl2, PCl3, CH3SiCl3

Other water-reactive waste

Potential Consequences:

Fire, explosion, or heat generation; generation of flammable or toxic gases

Group 4 Materials

Group 4-A:

Alcohols

Aldehydes

Halogenated hydrocarbons

Nitrated hydrocarbons

Unsaturated hydrocarbons

Other reactive organic compounds and solvents

Group 4-B:

Concentrated Group 1-A or 1-B wastes

Group 2-A wastes

Potential Consequences:

Fire, explosion, or violent reaction

Group 5 Materials

Group 5-A:

Spent cyanide and sulfide solutions

Group 5-B:

Group 1-B wastes

Potential Consequences:

Generation of toxic hydrogen cyanide or hydrogen sulfide gas

Group 6 Materials

Group 6-A:

Chlorates

Chlorine

Chlorites

Chromic acid

Hypochlorites

Nitrates

Nitric acid, fuming

Perchlorates

Permanganates

Peroxides

Other strong oxidizers

Group 6-B:

Acetic acid and other organic acids

Concentrated mineral acids

Group 2-A wastes

Group 4-A wastes

Other flammable and combustible wastes

Potential Consequences:

Fire, explosion, or violent reaction

¹ Source: "Law, Regulations, and Guidelines for Handling of Hazardous Waste." California Department of Health, February 1975.

La. Admin. Code tit. 33, § V-199

Promulgated by the Office of the Secretary, Legal Affairs Division, LR 33:452 (March 2007), amended LR 34:617 (April 2008).

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