- (a) General. OAC 252:730 Appendix F contains yearly mean standards and sample standards for protection of the Agriculture beneficial use. Historical values for chlorides, sulfates and TDS for water quality segments identified in OAC 252:730 Appendix F will not be updated. Data from surrounding segments shall be used by the permitting authority to develop yearly mean standards and sample standards for those segments with inadequate historical data.
- (b) Segment averages. Segment averages of yearly mean standards and sample standards or more appropriate determinations as prescribed in (e) and (f) of OAC 252:730-5-13 or (a) of 252:740-9-2 shall be the criteria for chlorides, sulfates and TDS to protect the Agriculture beneficial use.
Added at 40 Ok Reg 329, eff 10-25-22 (emergency)
Added at 40 Ok Reg 2062, eff 9-15-23