PART 148--HAZARDOUS WASTE INJECTION RESTRICTIONS

Subpart A--General

Sec.
148.1  Purpose, scope and applicability.
148.2  Definitions.
148.3  Dilution prohibited as a substitute for treatment.
148.4  Procedures for case-by-case extensions to an effective date.
148.5  Waste analysis.

Subpart B--Prohibitions on Injection

148.10  Waste specific prohibitions--solvent wastes.
148.11  Waste specific prohibitions--dioxin-containing wastes.
148.12  Waste specific prohibitions--California list wastes.
148.14  Waste specific prohibitions--first third wastes.
148.15  Waste specific prohibitions--second third wastes.
148.16  Waste specific prohibitions--third third wastes.

Subpart C--Petition Standards and Procedures

148.20  Petitions to allow injection of a waste prohibited under subpart B.
148.21  Information to be submitted in support of petitions.
148.22  Requirements for petition submission, review and approval or denial.
148.23  Review of exemptions granted pursuant to a petition.
148.24  Termination of approved petition.

    Authority: Secs. 3004, Resource Conservation and Recovery Act, 42 U.S.C. 6901 et seq.

    Source: 53 FR 28154, July 26, 1988, unless otherwise noted.

Subpart A--General


148.1  Purpose, scope and applicability.

    (a) This part identifies hazardous wastes that are restricted from disposal into Class I hazardous waste injection wells and defines those circumstances under which a waste, otherwise prohibited from injection, may be injected.
    (b) The requirements of this part apply to owners or operators of Class I hazardous waste injection wells used to inject hazardous waste.
    (c) Wastes otherwise prohibited from injection may continue to be injected:
    (1) If an extension from the effective date of a prohibition has been granted pursuant to 148.4 with respect to such wastes; or
    (2) If an exemption from a prohibition has been granted in response to a petition filed under 148.20 to allow injection of restricted wastes with respect to those wastes and wells covered by the exemption; or
    (3) If the waste is generated by a conditionally exempt small quantity generator, as defined in 261.5; or
    (4) Until November 8, 1988, if the waste has been determined to be contaminated soil or debris resulting from a response action taken under section 104 or 106 of the Comprehensive Environmental Response, Compensation and Liability Act of 1980 or a corrective action required under the Resource Conservation and Recovery Act.
    (d) Wastes that are hazardous only because they exhibit a hazardous characteristic, and which are otherwise prohibited under this part, are not prohibited if the wastes:
    (1) Are disposed into a nonhazardous injection well defined under 40 CFR 144.6(a); and
    (2) Do not exhibit any prohibited characteristic of hazardous waste identified in subpart C of part 261 at the point of injection.

[53 FR 28154, July 26, 1988, as amended at 55 FR 22683, June 1, 1990; 57 FR 8088, Mar. 6, 1992]


148.2  Definitions.

    Injection interval means that part of the injection zone in which the well is screened, or in which the waste is otherwise directly emplaced.
    Transmissive fault or fracture is a fault or fracture that has sufficient permeability and vertical extent to allow fluids to move between formations.


148.3  Dilution prohibited as a substitute for treatment.

    The prohibition of 268.3 shall apply to owners or operators of Class I hazardous waste injection wells.


148.4  Procedures for case-by-case extensions to an effective date.

    The owner or operator of a Class I hazardous waste injection well may submit an application to the Administrator for an extension of the effective date of any applicable prohibition established under subpart B of this part according to the procedures of 268.5.


148.5  Waste analysis.

    Generators of hazardous wastes that are disposed of into Class I injection wells must comply with the applicable requirements of 268.7 (a) and (b). Owners or operators of Class I hazardous waste injection wells must comply with the applicable requirements of 268.7(c).

Subpart B--Prohibitions on Injection


148.10  Waste specific prohibitions--solvent wastes.

    (a) Effective August 8, 1988, the spent solvent wastes specified in 261.31 as EPA Hazardous Waste Nos. F001, F002, F003, F004, and F005 are prohibited from underground injection unless the solvent waste is a solvent-water mixture or solvent-containing sludge containing less than 1 percent total F001 - F005 solvent constituents listed in Table A of this section.
    (b) Effective August 8, 1990, all spent F001 - F005 solvent wastes containing less than 1 percent total F001 - F005 solvent constituents listed in Table A of this section are prohibited from injection.
    (c) Effective August 8, 1990, all spent F002 and F005 wastes containing solvent constituents listed in Table B of this section are prohibited from underground injection at off-site injection facilities.
    (d) Effective November 8, 1990, the wastes specified in paragraph (c) of this section are prohibited from underground injection at on-site injection facilities.
    (e) The requirements of paragraphs (a) and (b) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension has been granted under 148.4 of this part.

Table A

Acetone
n-Butyl alcohol
Carbon disulfide
Carbon tetrachloride
Chlorobenzene
Cresols and cresylic acid
Cyclohexanone
1,2-dichlorobenzene
Ethyl acetate
Ethyl benzene
Ethyl ether
Isobutanol
Methanol
Methylene chloride
Methylene chloride (from the pharmaceutical industry)
Methyl ethyl ketone
Methyl isobutyl ketone
Nitrobenzene
Pyridine
Tetrachloroethylene
Toulene
1,1,1-Trichloroethane
1,2,2-Trichloro-1,2,2-trifluoroethane
Trichloroethylene
Trichlorofluoromethane
Xylene

Table B

Benzene
2-Ethoxyethanol
2-Nitropropane
1,1,2-Trichloroethane

[53 FR 28154, July 26, 1988, as amended at 54 FR 25422, June 14, 1989; 56 FR 3876, Jan. 31, 1991; 57 FR 8088, Mar. 6, 1992]


148.11  Waste specific prohibitions--dioxin-containing wastes.

    (a) Effective August 8, 1988, the dioxin-containing wastes specified in 261.31 as EPA Hazardous Waste Nos. F020, F021, F022, F023, F026, F027, and F028, and prohibited from underground injection.
    (b) The requirements of paragraph (a) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension has been granted under 148.4 of this part.

[53 FR 28154, July 26, 1988, as amended at 54 FR 25422, June 14, 1989]


148.12  Waste specific prohibitions--California list wastes.

    (a) Effective August 8, 1988, the hazardous wastes listed in 40 CFR 268.32 containing polychlorinated biphenyls at concentrations greater than or equal to 50 ppm or halogenated organic compounds at concentrations greater than or equal to 10,000 mg/kg are prohibited from underground injection.
    (b) Effective August 8, 1990, the following hazardous wastes are prohibited from underground injection:
    (1) Liquid hazardous wastes, including free liquids associated with any solid or sludge, containing free cyanides at concentrations greater than or equal to 1,000 mg/l;
    (2) Liquid hazardous wastes, including free liquids associated with any solid or sludge, containing the following metals (or elements) or compounds of these metals (or elements) at concentrations greater than or equal to those specified below:
    (i) Arsenic and/or compounds (as As) 500 mg/l;
    (ii) Cadmium and/or compounds (as Cd) 100 mg/l;
    (iii) Chromium (VI) and/or compounds (as Cr VI) 500 mg/l;
    (iv) Lead and/or compounds (as Pb) 500 mg/l;
    (v) Mercury and/or compounds (as Hg) 20 mg/l;
    (vi) Nickel and/or compounds (as Ni) 134 mg/l;
    (vii) Selenium and/or compounds (as Se) 100 mg/l; and
    (viii) Thallium and/or compounds (as Tl) 130 mg/l;
    (3) Liquid hazardous waste having a pH less than or equal to two (2.0); and
    (4) Hazardous wastes containing halogenated organic compounds in total concentration less than 10,000 mg/kg but greater than or equal to 1,000 mg/kg.
    (c) The requirements of paragraphs (a) and (b) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension is granted under 148.4 of this part.

[53 FR 30918, Aug. 16, 1988, as amended at 53 FR 41602, Oct. 24, 1988]


148.14  Waste specific prohibitions--first third wastes.

    (a) Effective June 7, 1989, the wastes specified in 40 CFR 261.31 as EPA Hazardous Waste numbers F006 (nonwastewaters) and the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K001, K015 (wastewaters), K016 (at concentrations greater than or equal to 1%), K018, K019, K020, K021 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes), K022 (nonwastewaters), K024, K030, K036 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes), K037, K044, K045, nonexplosive K046 (nonwastewaters), K047, K048, K060 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes), K061 (nonwastewaters), noncalcium sulfate K069 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes), K086 solvent washes, K087, K099, K101 (all wastewaters and less than 1% total arsenic nonwastewaters), K102 (all wastewaters and less than 1% total arsenic nonwastewaters), and K103 are prohibited from underground injection.
    (b) Effective June 8, 1989, the waste specified in 40 CFR 261.32 as EPA Hazardous Waste number K036 (wastewaters); and the wastes specified in 40 CFR 261.33 as P030, P039, P041, P063, P071, P089, P094, P097, U221, and U223 are prohibited from underground injection.
    (c) Effective July 8, 1989, the wastes specified in 40 CFR 261.31 as EPA Hazardous Waste numbers F008 and F009 are prohibited from underground injection.
    (d) Effective August 8, 1990, the wastes specified in 40 CFR 261.31 as EPA Hazardous Waste Number F006 (wastewaters) and F019; the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste Numbers K004, K008, K015 (nonwastewaters), K017, K021 (wastewaters), K022 (wastewaters), K031, K035, K046 (reactive nonwastewaters and all wastewaters), K060 (wastewaters), K061 (wastewaters), K069 (calcium sulfate nonwastewaters and all wastewaters), K073, K083, K084, K085, K086 (all but solvent washes), K101 (high arsenic nonwastewaters), K102 (high arsenic nonwastewaters), and K106; and the wastes specified in 40 CFR part 261.33 as EPA Hazardous Waste Numbers P001, P004, P005, P010, P011, P012, P015, P016, P018, P020, P036, P037, P048, P050, P058, P059, P068, P069, P070, P081, P082, P084, P087, P092, P102, P105, P108, P110, P115, P120, P122, P123, U007, U009, U010, U012, U016, U018, U019, U022, U029, U031, U036, U037, U041, U043, U044, U046, U050, U051, U053, U061, U063, U064, U066, U067, U074, U077, U078, U086, U089, U103, U105, U108, U115, U122, U124, U129, U130, U133, U134, U137, U151, U154, U155, U157, U158, U159, U171, U177, U180, U185, U188, U192, U200, U209, U210, U211, U219, U220, U226, U227, U228, U237, U238, U248, and U249 are prohibited from underground injection at off-site injection facilities.
    (e) Effective August 8, 1990, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K049, K050, K051, K052, K062, K071, and K104 are prohibited from underground injection.
    (f) Effective November 8, 1990, the wastes specified in paragraph (d) of this section are prohibited from underground injection at on-site injection facilities.
    (g) Effective June 7, 1991, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K016 (at concentrations less than 1%) are prohibited from underground injection.
    (h) Effective June 8, 1991, the waste specified in 40 CFR 261.31 as EPA Hazardous Waste number F007; and the wastes specified in 40 CFR 261.32 as K011 (nonwastewaters) and K013 (nonwastewaters) are prohibited from underground injection.
    (i) Effective May 8, 1992, the wastes specified in 40 CFR 261.32 and 261.33 as EPA Hazardous Waste Numbers K011 (wastewaters), K013 (wastewaters), and K014 are prohibited from underground injection.
    (j) The requirements of paragraphs (a) through (i) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension has been granted under 148.4 of this part.

[54 FR 25423, June 14, 1989, as amended at 54 FR 26647, June 23, 1989; 54 FR 35328, Aug. 25, 1989; 55 FR 22683, June 1, 1990]


148.15  Waste specific prohibitions--Second third wastes.

    (a) Effective June 7, 1989, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K025 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes) are prohibited from underground injection.
    (b) Effective June 8, 1989, the wastes specified in 40 CFR 261.31 as EPA Hazardous Waste numbers F010, F024; the wastes specified in 40 CFR 261.32 as K009 (nonwastewaters), K010, K027, K028, K029 (nonwastewaters), K038, K039, K040, K043, K095 (nonwastewaters), K096 (nonwastewaters), K113, K114, K115, K116; and wastes specified in 40 CFR 261.33 as P029, P040, P043, P044, P062, P074, P085, P098, P104, P106, P111, U028, U058, U107, and U235 are prohibited from underground injection.
    (c) Effective July 8, 1989, and continuing until December 8, 1989, the wastes specified in 40 CFR 261.31 as EPA Hazardous Waste numbers F011 and F012 are prohibited from underground injection pursuant to the treatment standards specified in 268.41 and 268.43 applicable to F007, F008, and F009 wastewaters and nonwastewaters. Effective December 8, 1989, F011 (nonwastewaters) and F012 (nonwastewaters) are prohibited pursuant to the treatment standards specified in 268.41 and 268.43 applicable to F011 and F012 wastewaters and nonwastewaters.
    (d) Effective August 8, 1990, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste Number K025 (wastewaters), K029 (wastewaters), K041, K042, K095 (wastewaters), K096 (wastewaters), K097, K098, and K105; and the wastes specified in 40 CFR part 261.33 as P002, P003, P007, P008, P014, P026, P027, P049, P054, P057, P060, P066, P067, P072, P107, P112, P113, P114, U002, U003, U005, U008, U011, U014, U015, U020, U021, U023, U025, U026, U032, U035, U047, U049, U057, U059, U060, U062, U070, U073, U080, U083, U092, U093, U094, U095, U097, U098, U099, U101, U106, U109, U110, U111, U114, U116, U119, U127, U128, U131, U135, U138, U140, U142, U143, U144, U146, U147, U149, U150, U161, U162, U163, U164, U165, U168, U169, U170, U172, U173, U174, U176, U178, U179, U189, U193, U196, U203, U205, U206, U208, U213, U214, U215, U216, U217, U218, U239, and U244 are prohibited from underground injection at off-site injection facilities.
    (e) Effective June 8, 1991, the waste specified in 40 CFR 261.32 as EPA Hazardous Waste number K009 (wastewaters) is prohibited from underground injection.
    (f) Effective November 8, 1990, the wastes specified in paragraph (d) of this section are prohibited from underground injection at on-site injection facilities.
    (g) The requirements of paragraphs (a) through (f) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension has been granted under 148.4 of this part.

[54 FR 25423, June 14, 1989, as amended at 54 FR 26647, June 23, 1989; 55 FR 22683, June 1, 1990]


148.16  Waste specific prohibitions--third third wastes.

    (a) Effective June 7, 1989, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K100 (nonwastewaters generated by the process described in the waste listing description and disposed after August 17, 1988, and not generated in the course of treating wastewater forms of these wastes) are prohibited from underground injection.
    (b) Effective June 8, 1989, the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste numbers K005 (nonwastewaters), K007 (nonwastewaters), K023, K093, K094; and the wastes specified in 40 CFR 261.33 as P013, P021, P099, P109, P121, U069, U087, U088, U102, and U190 are prohibited from underground injection.
    (c) Effective August 8, 1990, the wastes identified in 40 CFR 261.31 as EPA Hazardous Waste Number F039 (nonwastewaters); the wastes specified in 40 CFR 261.32 as EPA Hazardous Waste Numbers K002, K003, K005 (wastewaters), K006, K007 (wastewaters), K026, K032, K033, K034, and K100 (wastewaters); the wastes specified in 40 CFR 261.33 as P006, P009, P017, P022, P023, P024, P028, P031, P033, P034, P038, P042, P045, P046, P047, P051, P056, P064, P065, P073, P075, P076, P077, P078, P088, P093, P095, P096, P101, P103, P116, P118, P119, U001, U004, U006, U017, U024, U027, U030, U033, U034, U038, U039, U042, U045, U048, U052, U055, U056, U068, U071, U072, U075, U076, U079, U081, U082, U084, U085, U090, U091, U096, U112, U113, U117, U118, U120, U121, U123, U125, U126, U132, U136, U141, U145, U148, U152, U153, U156, U160, U166, U167, U181, U182, U183, U184, U186, U187, U191, U194, U197, U201, U202, U204, U207, U222, U225, U234, U236, U240, U243, U246, and U247; and the wastes identified in 40 CFR 261.21, 261.23 or 261.24 as hazardous based on a characteristic alone, designated as D001, D004, D005, D006, D008, D009 (wastewaters), D010, D011, D012, D013, D014, D015, D016, D017, and newly listed waste F025 are prohibited from underground injection at off-site injection facilities.
    (d) Effective August 8, 1990, mixed radioactive/hazardous waste in 40 CFR 268.10, 268.11, and 268.12, that are mixed radioactive and hazardous wastes, are prohibited from underground injection.
    (e) Effective November 8, 1990, the wastes specified in paragraph (c) of this section are prohibited from underground injection at on-site injection facilities. These effective dates do not apply to the wastes listed in 40 CFR 148.12(b) which are prohibited from underground injection on August 8, 1990.
    (f) Effective May 8, 1992, the waste identified in 40 CFR 261.31 as EPA Hazardous Waste Number F039 (wastewaters); the wastes identified in 40 CFR 261.22, 261.23 or 261.24 as hazardous based on a characteristic alone, designated as D002 (wastewaters and nonwastewaters), D003 (wastewaters and nonwastewaters), D007 (wastewaters and nonwastewaters), and D009 (nonwastewaters) are prohibited from underground injection. These effective dates do not apply to the wastes listed in 40 CFR 148.12(b) which are prohibited from underground injection on August 8, 1990.
    (g) The requirements of paragraphs (a) through (f) of this section do not apply:
    (1) If the wastes meet or are treated to meet the applicable standards specified in subpart D of part 268; or
    (2) If an exemption from a prohibition has been granted in response to a petition under subpart C of this part; or
    (3) During the period of extension of the applicable effective date, if an extension has been granted under 148.4 of this part.

[54 FR 25423, June 14, 1989, as amended at 54 FR 26647, June 23, 1989; 55 FR 22683, June 1, 1990; 55 FR 33694, Aug. 17, 1990; 56 FR 3876, Jan. 31, 1991]

Subpart C--Petition Standards and Procedures


148.20  Petitions to allow injection of a waste prohibited under subpart B.

    (a) Any person seeking an exemption from a prohibition under subpart B of this part for the injection of a restricted hazardous waste into an injection well or wells shall submit a petition to the Director demonstrating that, to a reasonable degree of certainty, there will be no migration of hazardous constituents from the injection zone for as long as the waste remains hazardous. This demonstration requires a showing that:
    (1) The hydrogeological and geochemical conditions at the sites and the physiochemical nature of the waste stream(s) are such that reliable predictions can be made that:
    (i) Fluid movement conditions are such that the injected fluids will not migrate within 10,000 years:
    (A) Vertically upward out of the injection zone; or
    (B) Laterally within the injection zone to a point of discharge or interface with an Underground Source of Drinking Water (USDW) as defined in 40 CFR part 146; or
    (ii) Before the injected fluids migrate out of the injection zone or to a point of discharge or interface with USDW, the fluid will no longer be hazardous because of attenuation, transformation, or immobilization of hazardous constituents within the injection zone by hydrolysis, chemical interactions or other means; and
    (2) For each well the petition has:
    (i) Demonstrated that the injection well's area of review complies with the substantive requirements of 146.63;
    (ii) Located, identified, and ascertained the condition of all wells within the injection well's area of review (as specified in 146.63) that penetrate the injection zone or the confining zone by use of a protocol acceptable to the Director that meets the substantive requirements of 146.64;
    (iii) Submitted a corrective action plan that meets the substantive requirements of 146.64, the implementation of which shall become a condition of petition approval; and
    (iv) Submitted the results of pressure and radioactive tracer tests performed within one year prior to submission of the petition demonstrating the mechanical integrity of the well's long string casing, injection tube, annular seal, and bottom hole cement. In cases where the petition has not been approved or denied within one year after the initial demonstration of mechanical integrity, the Director may require the owner or operator to perform the tests again and submit the results of the new tests.

    Note: The requirements of 148.20(a)(2) need not be incorporated in a permit at the time of petition approval.

    (b) A demonstration under 148.20(a)(1)(i) shall identify the strata within the injection zone which will confine fluid movement above the injection interval and include a showing that this strata is free of known transmissive faults of fractures and that there is a confining zone above the injection zone.
    (c) A demonstration under 148.20(a)(1)(ii) shall identify the strata within the injection zone where waste transformation will be accomplished and include a showing that this strata is free of known transmissive faults or fractures and that there is a confining zone above the injection zone.
    (d) A demonstration may include a showing that:
    (1) Treatment methods, the implementation of which shall become a condition of petition approval, will be utilized that reduce the toxicity or mobility of the wastes; or
    (2) A monitoring plan, the implementation of which shall become a condition of petition approval, will be utilized to enhance confidence in one or more aspects of the demonstration.
    (e) Any person who has been granted an exemption pursuant to this section may submit a petition for reissuance of the exemption to include an additional restricted waste or wastes or to modify any conditions placed on the exemption by the Director. The Director shall reissue the petition if the petitioner complies with the requirements of paragraphs (a), (b) and (c) of this section.
    (f) Any person who has been granted an exemption pursuant to this section may submit a petition to modify an exemption to include an additional (hazardous) waste or wastes. The Director may grant the modification if he determines, to a reasonable degree of certainty, that the additional waste or wastes will behave hydraulically and chemically in a manner similar to previously included wastes and that it will not interfere with the containment capability of the injection zone.


148.21  Information to be submitted in support of petitions.

    (a) Information submitted in support of 148.20 must meet the following criteria:
    (1) All waste analysis and any new testing performed by the petitioner shall be accurate and reproducible and performed in accordance with quality assurance standards;
    (2) Estimation techniques shall be appropriate, and EPA-certified test protocols shall be used where available and appropriate;
    (3) Predictive models shall have been verified and validated, shall be appropriate for the specific site, waste streams, and injection conditions of the operation, and shall be calibrated for existing sites where sufficient data are available;
    (4) An approved quality assurance and quality control plan shall address all aspects of the demonstration;
    (5) Reasonably conservative values shall be used whenever values taken from the literature or estimated on the basis of known information are used instead of site-specific measurements; and
    (6) An analysis shall be performed to identify and assess aspects of the demonstration that contribute significantly to uncertainty. The petitioner shall conduct a sensitivity analysis to determine the effect that significant uncertainty may contribute to the demonstration. The demonstration shall then be based on conservative assumptions identified in the analysis.
    (b) Any petitioner under 148.20(a)(1)(i) shall provide sufficient site-specific information to support the demonstration, such as:
    (1) Thickness, porosity, permeability and extent of the various strata in the injection zone;
    (2) Thickness, porosity, permeability, extent, and continuity of the confining zone;
    (3) Hydraulic gradient in the injection zone;
    (4) Hydrostatic pressure in the injection zone; and
    (5) Geochemical conditions of the site.
    (c) In addition to the information in 148.21(b), any petitioner under 148.20(a)(1)(ii) shall provide sufficient waste-specific information to ensure reasonably reliant predictions about the waste transformation. The petitioner shall provide the information necessary to support the demonstration, such as:
    (1) Description of the chemical processes or other means that will lead to waste transformation; and
    (2) Results of laboratory experiments verifying the waste transformation.


148.22  Requirements for petition submission, review and approval or denial.

    (a) Any petition submitted to the Director pursuant to 148.20(a) shall include the following components:
    (1) An identification of the specific waste or wastes and the specific injection well or wells for which the demonstration will be made;
    (2) A waste analysis to describe fully the chemical and physical characteristics of the subject wastes;
    (3) Such additional information as is required by the Director to support the petition under ÿ1A148.20 and 148.21; and
    (4) This statement signed by the petitioner or an authorized representative:

    I certify under penalty of law that I have personally examined and am familiar with the information submitted in this petition and all attached documents, and that, based on my inquiry of those individuals immediately responsible for obtaining the information, I believe that submitted information is true, accurate, and complete. I am aware that there are significant penalties for submitting false information, including the possibility of fine and imprisonment.

    (b) The Director shall provide public notice and an opportunity for public comment in accordance with the procedures in ÿ1A124.10 of the intent to approve or deny a petition. The final decision on a petition will be published in the Federal Register.
    (c) If an exemption is granted it will apply only to the underground injection of the specific restricted waste or wastes identified in the petition into a Class I hazardous waste injection well or wells specifically identified in the petition (unless the exemption is modified or reissued pursuant to 148.20(e) or (f).
    (d) Upon request by any petitioner who obtains an exemption for a well under this subpart, the Director shall initiate and reasonably expedite the necessary procedures to issue or reissue a permit or permits for the hazardous waste well or wells covered by the exemption for a term not to exceed ten years.


148.23  Review of exemptions granted pursuant to a petition.

    (a) When considering whether to reissue a permit for the operation of a Class I hazardous waste injection well, the Director shall review any petition filed pursuant to 148.20 and require a new demonstration if information shows that the basis for granting the exemption may no longer be valid.
    (b) Whenever the Director determines that the basis for approval of a petition may no longer be valid, the Director shall require a new demonstration in accordance with 148.20.


148.24  Termination of approved petition.

    (a) The Director may terminate an exemption granted under 148.20 for the following causes:
    (1) Noncompliance by the petitioner with any condition of the exemption;
    (2) The petitioner's failure in the petition or during the review and approval to disclose fully all relevant facts, or the petitioner's misrepresentation of any relevant facts at any time; or
    (3) A determination that new information shows that the basis for approval of the petition is no longer valid.
    (b) The Director shall terminate an exemption granted under 148.20 for the following causes:
    (1) The petitioner's willful withholding during the review and approval of the petition of facts directly and materially relevant to the Director's decision on the petition;
    (2) A determination that there has been migration from the injection zone or the well that is not in accordance with the terms of the exemption, except that the Director may at his discretion decide not to terminate where:
    (i) The migration resulted from a mechanical failure of the well that can be corrected promptly through a repair to the injection well itself or from an undetected well or conduit that can be plugged promptly; and
    (ii) The requirements of 146.67(i) are satisfied.
    (c) The Director shall follow the procedures in 124.5 in terminating any exemption under this section.