“Equivalent method” means any testing or analytical method approved by the department under Env-Hw 401.05 or by the administrator under 40 CFR 260.20 and 260.21.

Source. (See Revision Note #1 and Revision Note #2 at chapter heading for Env-Hw 100) #12343, eff 8-14-17; (formerly Env-Hw 103.46, renumbered by #12920) (See Revision Note #3 at chapter heading for Env-Hw 100)