» Purification

Water and Disease

Water is a gift of nature. The total amount of water on the earth is finite, while man’s capacity for pollution is accelerating fast with the growth of population, agriculture and industry across the globe. Local water bodies may very quickly be exhausted and become polluted due to greed and ignorance; water can become a source of death and disease rather than life. Read More

Water Basics

Water is generally classified into two groups: Surface Water and Ground Water. Read More

Wastewater Treatment Facilities

Wastewater is generated by every federal facility. It might include sanitary sewage, industrial wastewater, or even stormwater. Depending on the individual facility wastewater might be discharged to a publicly/federally owned treatment works, a sewage lagoon, a leach field, a septic system, a cess pool, or even a composting toilet. Read More

Drinking Water Treatment

Federal Facilities distribute drinking water to their personnel and visitors through a variety of mechanisms. This includes being connected to the local drinking water treatment plant, distributing bottled water, and providing drinking water from their own well. The latter method is used at campgrounds, visitor centers, outbuildings, housing, offices, and any other point where water may be consumed. Read More

Water Treatment Technician

The Water Treatment Technician assists in operating and maintaining a water treatment facility, performs basic laboratory testing and equipment maintenance, completes required recordkeeping, and maintains applicable operator certification in order to Read More

Copper and Your Health

This Wisconsin Department of Natural Resources site contains information related to copper in drinking water. Specific health effects, safety limits, and treatment options are provided. Read More

Water Treatment Primer

This Virginia Tech Civil Engineering Department site provides extensive coverage of techniques used in both drinking water as well as wastewater treatment. There are 11 chapters covering: introduction, water treatment plants, coagulation & flocculation, sedimentation & separation, filtration, disinfection, miscellaneous treatment processes, sludge handling and disposal, legal aspects, distribution systems, and an index. Read More

Bad Bug Book: Cryptosporidium Parvum

Library Holdings. This U.S. Food and Drug Administration site includes a listing of information regarding this protozoan parasite. A link to their Bacteriological Analytical Manual is provided. Read More

Total Coliform Bacterial Testing

This Wilkes University Center for Enviornmental Quality provides useful information related to coliform bacteria in water. Links to other organisms that may be present in water are included. Read More

pH Scale

A basic overview of the pH scale is provided. An excellent color chart illustrates the changes in the hydrogen ion concentration and representative examples of liquid with different pH values. Read More


EERL's mission is to be the best possible online collection of environmental and energy sustainability resources for community college educators and for their students. The resources are also available for practitioners and the public.


EERL is a product of a community college-based National Science Foundation Center, the Advanced Technology Environmental and Energy Center (ATEEC), and its partners.

Contact ATEEC 563.441.4087 or by email ateec@eicc.edu