35 Ill. Adm. Code 817.104
Sampling Frequency
Section 817
Section 817.104Â Sampling
Frequency
a)Â Â Â Â Â Â Â Â All individual wastes streams shall be tested annually
pursuant to 817.103(a).
b)Â Â Â Â Â Â Â Â Additional testing on individual waste streams shall be
conducted when any of the following occurs:
1)Â Â Â Â Â Â Â Â There is a change in the raw materials which could result in a
change in the wastes' classification;
2)Â Â Â Â Â Â Â Â There is a modification to the process which generates the
waste that could result in a change in the waste's leaching characteristics; or
3)Â Â Â Â Â Â Â Â There is an addition of a new process which may generate a new
waste material.