Lithologic sample logs shall be made for each borehole for its entire depth. Each log shall include the following information:

1. (1) geotechnical information about drilling, such as penetration rates, hydraulic conductivity test intervals and results, and drill bit changes;

2. (2) identification of all soil and rock layers encountered during drilling describing:

   1. (A) color, texture, thickness, degree of compaction or consolidation and amount of moisture present in each layer;
   2. (B) soil classifications based on the Unified Soil Classification System along with the geological classification; and
   3. (C) rock classifications as defined in the American Geological Institute Dictionary of Geological Terms; and
3. (3) the depths at which groundwater was encountered and stabilized groundwater elevations.

Added at 20 Ok Reg 1151, eff 6-1-03