Chapter 11, Water
I showed pictures of my tour (in 1994) to San Angelo's water treatment plant and sewage treatment plant. The pictures are no longer up to date, but the basic procedures are about the same.
San Angelo Drinking water treatment.ppt and San Angelo Sewage treatment.ppt
They did some book work:
Water Resources BKWK.docx
Pollution of water BKWK.docx
Use and Management of water BKWK.docx