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4725.1855 CUTTING FORMATION SAMPLES.

A licensee or registrant must submit cutting samples as specified in this part when the commissioner determines that samples are needed to provide subsurface geological and hydrological information for the state water information system.

A.

The commissioner shall notify licensees and registrants of the areas from which cutting samples are required and provide licensees and registrants operating within the areas with maps or lists indicating counties, townships, sections, or other designated areas where cutting samples are required.

B.

Licensees and registrants so notified and supplied shall collect cutting samples during the course of drilling in the designated areas according to the requirements specified. Licensees or registrants not supplied with sample collecting materials but who drill in an area designated for sampling shall notify the commissioner. Licensees or registrants shall collect the cutting samples in a manner representative of the materials encountered. Samples must be taken at five-foot intervals and at every change in geological material type. The cuttings must be placed in the sample bags provided, which shall have an attached tag on which the unique number, owner's name, location, and sample depth must be written.

C.

Licensees or registrants shall notify the commissioner within 30 days of completion of work, so that the cutting samples can be collected. Until collected, the licensee or registrant shall store the samples protected from weather and disturbance and segregated by unique number and depth interval.

History:

17 SR 2773; 33 SR 211

Published Electronically:

September 2, 2008

Official Publication of the State of Minnesota
Revisor of Statutes