Tex. Natural Resources Code § 91.654

(a) A person who desires to participate in the voluntary cleanup program under this subchapter must submit to the commission an application and an application fee as prescribed by this section.

(b) An application submitted under this section must:

(1) be on a form provided by the commission;

(2) contain:

(A) general information concerning:

(i) the person and the person's capability, including the person's financial capability, to perform the voluntary cleanup;

(ii) the site; and

(iii) the name, address, and telephone number of all surface and mineral owners;

(B) other background information requested by the commission;

(C) an environmental assessment of the actual or threatened release of the contaminant at the site; and

(D) if the person applying is not the surface owner, written authorization from the surface owner agreeing to the applicant's participation in the program;

(3) be accompanied by an application fee of $1,000; and

(4) be submitted according to schedules set by the commission.

(c) The environmental assessment required by Subsection (b) must include:

(1) a legal description of the site;

(2) a description of the physical characteristics of the site;

(3) the operational history of the site to the extent that history is known by the applicant;

(4) information of which the applicant is aware concerning the nature and extent of any relevant contamination or release at the site and immediately contiguous to the site, or wherever the contamination came to be located; and

(5) relevant information of which the applicant is aware concerning the potential for human exposure to contamination at the site.

(d) An application shall be processed in the order in which it is received.

(e) Fees collected under this section shall be deposited to the credit of the oil and gas regulation and cleanup fund under Section 81.067.