SECTION 252:515-7-33. Lithologic sample logs

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

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

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

(A)   color, texture, thickness, degree of compaction or consolidation and amount of moisture present in each layer;

(B)   soil classifications based on the Unified Soil Classification System along with the geological classification; and

(C)   rock classifications as defined in the American Geological Institute Dictionary of Geological Terms; and

(3)   the depths at which groundwater was encountered and stabilized groundwater elevations.

[Source: Added at 20 Ok Reg 1151, eff 6-1-03]