35 Ill. Adm. Code 811.504
Sampling Requirements
Section 811
Section 811.504 Sampling
Requirements
A sampling program shall be
implemented as part of the CQA plan, for all construction activities, in order
to insure, at a minimum, that construction materials and operations meet the
following requirements:
a) The sampling program shall be designed prior to construction.
b) The sampling program shall be based upon statistical sampling
techniques and shall establish and specify criteria for acceptance or rejection
of materials and operations.