This lesson introduces students to the basics of wastewater treatment. Topics include the variety of materials that enter the wastewater system, septic tanks, and municipal treatment systems. Students can review online...

The United States Geological Survey (USGS) presents the most common water measurements in science. These include: temperature, pH, specific conductance, turbidity, dissolved oxygen, hardness and suspended sediments. The...

Contains water resource information focusing on the state of Washington, USA. Includes information on Washington's rivers and streams, ground water, water quality, and many other topics.

Water Resources Penn.: The Office of Water Management plans, directs and coordinates departmental programs associated with the management and protection of the Commonwealth’s water resources; administers and oversees...