Okla. Admin. Code § 252:515-11-33

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

Section 252:515-11-33 - Liner soil standards

Soils shall meet a majority of the following standards. Minor deviations may be proposed so long as the hydraulic conductivity standard in OAC 252:515-11-31 is satisfied.

(1)Plasticity index (ASTM D4318). Plasticity index shall be greater than or equal to 10%.

(2)Liquid limit (ASTM D4318). Liquid limit shall be greater than or equal to 24%.

(3)Percent fines (ASTM D422). Percent fines passing #200 mesh sieve shall be greater than or equal to 30%.

(4)Gravel amount (ASTM D422). The amount of gravel (dry-weight percentage retained on the No. 4 sieve) shall be less than or equal to 20%.

(5)Particle size. Particle size shall be less than one inch in diameter.

(6)Water content. After the soil is compacted, the water content of the soil shall be equal to or greater than optimum.

(7)Soil density. After the soil is compacted, the minimum density of the soil shall be greater than or equal to:

(A) 95% of the standard proctor density (ASTM D698); or

(B) 90% of the modified proctor density (ASTM D1557).

Okla. Admin. Code § 252:515-11-33

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