How To Test Sewage Treatment Plants Properly.

How To Test A Sewage Treatment Plant Properly. By: Peter Maier, PhD,PE Date: February 2017 Introduction. When EPA in 1973 established secondary sewage treatment standards to implement the Clean Water Act (CWA) or 85% treatment, it used mainly two testing methods for its NPDES (National Pollution Discharge Elimination System) permits. 1. The BOD5 (Biochemical Oxygen […]

How Environmental Regulations Are Diminishing Public Health Concerns.

How Environmental Regulations Are Diminishing Public Health Concerns. By : Peter Maier, PhD, PE and edited by John M. Ackerman, MD. March 2015 To understand present environmental regulations, one should first know some of the historical background. Prior to the nineteenth century, drinking water was obtained primarily from wells, it looked clear and hence was […]