Hi All! I am working through sample questions in the NCEES book, and hoping someone can help me with something. I am on page 31 - Morning Sample Questions - #131. I guessed at this during my "trial-run" and got it right, but when I look at the solution on pg. 79, it makes an actual reference to the LeGrega Haz Waste Mgmt book (1994 version; pg. 139). Here is my question - I don't have the same version of the Haz Waste mgmt book - I have the 2001 version and the answer is referencing the 1994 version. I tried to go read up on the explanation and can't find the same solution reference in my book - understanding page numbers and topics changed from the 1994 version to the 2001 version. I was hoping my version would still cover the material but I don't see it. Does anyone (1) either have the 1994 version and can provide me a brief synopsis of what pg. 139 says about oxidized lake sediment effects on chromium, or (2) have the 2001 version and can find the reference about oxidized lake sediment effects on chromium that I am obviously missing? Any help is greatly appreciated. Thanks Everyone - Hope your Monday is going well!