Okla. Admin. Code § 252:301-7-5

Current through Vol. 42, No. 3, October 15, 2024

Section 252:301-7-5 - General requirements

(a) Laboratories seeking to renew accreditation must successfully analyze vendor supplied, regularly scheduled proficiency testing samples approximately six (6) months apart in each calendar year. Failure to meet the semiannual schedule shall be regarded as a failed study on the last day of the seventh (7th) month.

(b) Laboratories shall successfully analyze at least two (2) PT studies within the most recent three rounds attempted (2 of 3) prior to renewal. Laboratories may analyze additional or supplemental studies; however, such studies must be reported to the DEQ.

(c) General water quality proficiency testing samples must be Water Pollution (WP) type testing samples.

(d) Drinking water proficiency testing samples must be Water Supply (WS) type testing samples.

(e) Petroleum hydrocarbon proficiency testing samples must include benzene, toluene, methylbenzene and xylene (BTEX) and Total Petroleum Hydrocarbons (TPH). Both soil and water matrices must be analyzed if both soil and water samples are to be accepted by the laboratory.

Okla. Admin. Code § 252:301-7-5

Added at 25 Ok Reg 2247, eff 7-11-08