- (a) The percolation test shall be conducted in the most restrictive permeable soil horizon above the seasonal high water table and below the A horizon.
- (b) Where no A horizon exists, the percolation test shall be taken in the most restrictive layer above the seasonal high water table.
Source. (See Revision Notes #1 and #2 at chapter heading for Env-Wq 1000) #11184, eff 10-1-16; ss by #14486, eff 2-1-26, EXPIRES: 2-1-36