[Code of Federal Regulations]
[Title 40, Volume 24]
[Revised as of July 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR280.63]

[Page 470]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
                           AGENCY (CONTINUED)
 
PART 280--TECHNICAL STANDARDS AND CORRECTIVE ACTION REQUIREMENTS FOR OWNERS AND OPERATORS OF UNDERGROUND STORAGE TANKS (UST)--Table of Contents
 
   Subpart F--Release Response and Corrective Action for UST Systems 
              Containing Petroleum or Hazardous Substances
 
Sec. 280.63  Initial site characterization.

    (a) Unless directed to do otherwise by the implementing agency, 
owners and operators must assemble information about the site and the 
nature of the release, including information gained while confirming the 
release or completing the initial abatement measures in Secs. 280.60 and 
280.61. This information must include, but is not necessarily limited to 
the following:
    (1) Data on the nature and estimated quantity of release;
    (2) Data from available sources   and/or site investigations 
concerning the following factors: surrounding populations, water 
quality, use and approximate locations of wells potentially affected by 
the release, subsurface soil conditions, locations of subsurface sewers, 
climatological conditions, and land use;
    (3) Results of the site check required under Sec. 280.62(a)(5); and
    (4) Results of the free product investigations required under 
Sec. 280.62(a)(6), to be used by owners and operators to determine 
whether free product must be recovered under Sec. 280.64.
    (b) Within 45 days of release confirmation or another reasonable 
period of time determined by the implementing agency, owners and 
operators must submit the information collected in compliance with 
paragraph (a) of this section to the implementing agency in a manner 
that demonstrates its applicability and technical adequacy, or in a 
format and according to the schedule required by the implementing 
agency.