Okla. Admin. Code § 252:515-11-37

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

Section 252:515-11-37 - Verification tests

(a)Verification of thickness. After installation, liner thickness shall be verified on a 100-foot grid.

(b)Visual inspection. The liner shall be visually inspected to evaluate its integrity.

(c)Hydraulic conductivity. Hydraulic conductivity tests shall be performed in the top 12 inches of the finished liner.

(1)Locations. At least one test per acre shall be performed on the sideslopes and two per acre on the bottom, at DEQ approved locations.

(2)Test methods. Tests shall be conducted using one of the following methods:

(A) laboratory testing of soil samples using ASTM D5084. Soil samples for an in-situ laboratory test shall be retrieved in accordance with ASTM D1587;

(B) field testing using the sealed double ring infiltrometer test (ASTM D5093); or

(C) any other method approved in advance by the DEQ.

(d)Information required. The results from (a) through (c) of this Section shall be verified by the QA officer and included in the LIT report.

Okla. Admin. Code § 252:515-11-37

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