Okla. Admin. Code § 252:606-6-84

Current through Vol. 42, No. 8, January 2, 2025

Section 252:606-6-84 - Criteria long-term averages for the implementation of mineral constituent criteria to protect the Agriculture beneficial use

(a)LTA_YMS. LTA_YMS = WLA_YMS. See Equation N-3.

(b)LTA_SS. LTA_SS is calculated using a 99% probability basis according to Equation N-4. A CV value of 0.6 is assumed in determining LTA_SS unless a CV was determined from effluent data in accordance with OAC 252:606-6-7.

(c)Limiting LTAs. LTA_YMS and LTA_SS are compared with each other for each mineral constituent, and the more stringent of the two LTAs is the limiting LTA for that mineral constituent, as described in Equations N-5, N-6, and N-7.

Okla. Admin. Code § 252:606-6-84

Adopted by Oklahoma Register, Volume 41, Issue 23, August 15, 2024, eff. 9/15/2024