Okla. Admin. Code § 252:515-9-72

Current through Vol. 41, No. 19, June 17, 2024

Section 252:515-9-72 - Revisions to monitoring constituents

(a)Groundwater quality constituents. During detection monitoring, the DEQ may approve an alternative list of groundwater quality constituents upon successful demonstration that the alternative list of constituents will detect changes in groundwater quality due to the presence of the facility.

(b)Volatile and semi-volatile organics. During detection monitoring, the DEQ may approve deletion of any of the volatile or semi-volatile organic constituents of the approved groundwater monitoring program upon successful demonstration that the removed constituents are not reasonably expected to be in or derived from the waste contained in the site.

(c)Heavy metals. During detection monitoring, the DEQ may approve the use of an alternative list of indicator constituents, in lieu of some or all of the heavy metal constituents of the approved groundwater monitoring program, if the alternative constituents provide a reliable indication of inorganic releases from the disposal facility to the groundwater. The use of an alternative of indicator constituents shall be based on:

(1) the types, quantities, and concentrations of constituents in wastes managed at the facility;

(2) the mobility, stability, and persistence of waste constituents or their reaction products in the unsaturated zone beneath the facility;

(3) the detectability of indicator parameters, waste constituents, and reaction products in the ground water; and

(4) the concentration or values and coefficients of variation of monitoring constituents in the groundwater background.

Okla. Admin. Code § 252:515-9-72

Added at 20 Ok Reg 1151, eff 6-1-03