[Code of Federal Regulations]
[Title 40, Volume 26]
[Revised as of July 1, 2007]
From the U.S. Government Printing Office via GPO Access
[CITE: 40CFR280.65]

[Page 519-520]
 
                   TITLE 40--PROTECTION OF ENVIRONMENT
 
         CHAPTER I--ENVIRONMENTAL PROTECTION AGENCY (CONTINUED)
 
PART 280_TECHNICAL STANDARDS AND CORRECTIVE ACTION REQUIREMENTS FOR OWNERS AND 
 
    Subpart F_Release Response and Corrective Action for UST Systems 
 
Sec. 280.65  Investigations for soil and ground-water cleanup.

    (a) In order to determine the full extent and location of soils 
contaminated by the release and the presence and concentrations of 
dissolved product contamination in the ground water, owners and 
operators must conduct investigations of the release, the release site, 
and the surrounding area possibly affected by the release if any of the 
following conditions exist:
    (1) There is evidence that ground-water wells have been affected by 
the release (e.g., as found during release confirmation or previous 
corrective action measures);

[[Page 520]]

    (2) Free product is found to need recovery in compliance with Sec. 
280.64;
    (3) There is evidence that contaminated soils may be in contact with 
ground water (e.g., as found during conduct of the initial response 
measures or investigations required under Sec. Sec. 280.60 through 
280.64); and
    (4) The implementing agency requests an investigation, based on the 
potential effects of contaminated soil or ground water on nearby surface 
water and ground-water resources.
    (b) Owners and operators must submit the information collected under 
paragraph (a) of this section as soon as practicable or in accordance 
with a schedule established by the implementing agency.