This category contains courses and reference materials that are associated with the NPDES Sewage and Industrial Water Permitting Process.

Chemical Additives
This course will cover chemical additives for NPDES permits. In this course you will learn what products are considered chemical additives, how to add chemical additives to the DEP Approved Chemical Additives List and when to begin using chemical additives.
History of NPDES Permitting

30 minute introductory overview of the history of NPDES Permitting in Pennsylvania