SECTION 252:515-7-2. General  


Latest version.
  • (a)   Purpose and design. The subsurface investigation shall:
    (1)   be performed to determine the location of the uppermost saturated zone(s); and
    (2)   be designed to protect all saturated zones encountered while drilling.
    (b)   Methods. Dry methods of subsurface exploration, such as auger, air rotary, or cable tool, shall be used. Other methods may be approved by the DEQ on a case-by-case basis.
    (c)   Verification of previously submitted data. When a significant period of time has elapsed between the initial investigation and actual construction that there is a reasonable likelihood subsurface conditions have changed, the DEQ may require verification of data contained in a previously submitted subsurface investigation.
[Source: Added at 20 Ok Reg 1151, eff 6-1-03]