- (a) Rainfall measurements. Daily and monthly precipitation data shall be obtained from the climatological station closest to the proposed site or expansion area, for the months in which the on- site measurements were taken and for the preceding 12 months.
- (b) Average rainfall. CLIMOCS shall be used to obtain the 30-year mean precipitation from the climatological station closest to the proposed site or expansion area.
Added at 33 Ok Reg 1469, eff 9-15-16