This chapter seeks to implement provisions of the Act, the general pretreatment regulations found at 40 CFR, Part 403, and the Iowa Administrative Code, Chapter 567, Sections 62.4 and 62.8. This chapter is to be construed and applied in accordance with the Clean Water Act amendments, the general pretreatment regulations, the Iowa Administrative Code and the purpose and policy provision set forth in Section 100.05 of this chapter.