(a) The department shall not issue a hazardous waste facilities permit for an injection well or for the discharge of hazardous waste into an injection well unless all of the following conditions are met:

1. (1) A hydrogeological assessment report has been approved pursuant to Section 25159.18.
2. (2) The groundwater monitoring required by Section 25159.16 is included as a permit condition.
3. (3) The department finds that the hazardous wastes to be discharged cannot be reasonably and adequately reduced, treated, or disposed of by an alternative method other than well injection. This finding shall be in writing and shall be supported by evidence citing specific evidence presented to the department or evidence that is otherwise made available to the department. The department shall provide public notice and opportunity for comment before making this finding.
4. (4) The horizontal and vertical extent of the permitted injection zone specified pursuant to Section 25159.20 is included as a permit condition.
5. (5) The permit complies with and incorporates as a permit condition any waste discharge requirements issued by the state board or a regional board and the permit is consistent with all applicable water quality control plans adopted pursuant to Section 13170 of the Water Code and Article 3 (commencing with Section 13240) of Chapter 4 of Division 7 of the Water Code and with the state policies for water quality control adopted pursuant to Article 3 (commencing with Section 13140) of Chapter 3 of Division 7 of the Water Code, and any amendments made to these plans, policies, or requirements. The department may also include any more stringent requirement that the department determines is necessary or appropriate to protect water quality.

(b) Notwithstanding the requirement to submit a hydrogeological assessment report before application for a hazardous waste facility permit under Section 25159.18, or notwithstanding the requirement to have a hazardous waste facility permit or an approved hydrogeological assessment report before application for an exemption pursuant to subdivision (b) of Section 25159.15, the department shall process any applications for a hazardous waste facility permit to construct a new injection well from any person who has applied between May 15, 1984, and December 31, 1984, for an underground injection control permit from the federal Environmental Protection Agency pursuant to the Safe Drinking Water Act (42 U.S.C. Sec. 300f et seq.), and who has received that permit by July 1, 1986, in the following manner:

1. (1) The department shall accept a concurrent filing of the hydrogeological assessment report required pursuant to Section 25159.18, the application for the hazardous waste facilities permit filed pursuant to this section, and an application for an exemption filed pursuant to subdivision (b) of Section 25159.15.
2. (2) The department shall grant or deny the hazardous waste facilities permit within six months of the concurrent filing of a completed application as specified in paragraph (1). However, the department shall grant the hazardous waste facilities permit only if the conditions in subdivision (a) are met.