Wis. Admin. Code NR § 512.085
The applicant may propose an alternative geotechnical investigation program to the department prior to initiating the geotechnical investigations required for a feasibility report that are identified in ss. NR 512.09 and 512.10. A proposal shall include a detailed description of the proposed alternative program, detailed explanations of the rationale for the proposed differences between the code requirements in s. NR 512.09 or 512.10 and the proposed alternative program, and the anticipated benefits of the proposed alternative program. The department shall respond in writing and may accept the program as submitted, identify deficiencies in the proposed alternative program that must be addressed, or may reject the program. The program may not be implemented prior to receipt of written review by the department. The feasibility report shall include documentation of any alternative geotechnical investigation accepted by the department and justification for any reductions to the requirements in ss. NR 512.09 and 512.10. Formal approval of an accepted alternative geotechnical program shall be made in the department's feasibility determination.
Wis. Admin. Code Department of Natural Resources § NR 512.085