Statutes, codes, and regulations
Oklahoma Administrative Code
Title 252 - Department of Environmental QualityChapter 740 - Implementation of Oklahoma's Water Quality Standards
Subchapter 15 - Use Support Assessment Protocols
Section 252:740-15-6 - Assessment of Primary Body Contact Recreation support

Okla. Admin. Code § 252:740-15-6

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Current through Vol. 41, No. 19, June 17, 2024
Section 252:740-15-6 - Assessment of Primary Body Contact Recreation support
(a)Scope. The provisions of this Section shall be used to determine whether the subcategory of Primary Body Contact of the beneficial use of Recreation designated in OAC 252:730 for a waterbody is supported during the recreation season from May 1 through September 30 each year. Where data exist for multiple bacterial indicators on the same waterbody or waterbody segment, the determination of use support shall be based upon the use and application of all applicable tests and data.
(b)Escherichia coli (E. coli).
(1) The Primary Body Contact Recreation subcategory designated for a waterbody shall be deemed to be fully supported with respect to E. coli if the geometric mean of 126 colonies per 100 ml is met. These values are based upon all samples collected over the recreation period in accordance with OAC 252:740-15-3(c).
(2) The Primary Body Contact Recreation subcategory designated for a waterbody shall be deemed to be not supported with respect to E. coli if the geometric mean of 126 colonies per 100 ml is not met. These values are based upon all samples collected over the recreation period in accordance with OAC 252:740-15-3(c).
(c)Enterococci.
(1) The Primary Body Contact Recreation subcategory designated for a waterbody shall be deemed to be fully supported with respect to enterococci if the geometric mean of 33 colonies per 100 ml is met. These values are based upon all samples collected over the recreation period in accordance with OAC 252:740-15-3(c).
(2) The Primary Body Contact Recreation subcategory designated for a waterbody shall be deemed to be not supported with respect to enterococci if the geometric mean of 33 colonies per 100 ml is not met. These values are based upon all samples collected over the recreation period in accordance with OAC 252:740-15-3(c).

Okla. Admin. Code § 252:740-15-6

Adopted by Oklahoma Register, Volume 40, Issue 6, December 1, 2022, eff. 10/25/2022
Adopted by Oklahoma Register, Volume 40, Issue 24, September 1, 2023, eff. 9/15/2023