Glossary of Water and Wastewater Terms

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5 random terms from our glossary

Asymmetric (A-sim-MET-rick)

Not similar in size, shape, form, or arrangement of parts on opposite sides of a line, point, or plane.

Reclamation

The operation or process of changing the condition or characteristics of water so that improved uses can be achieved.

Septic (SEP-tick)

A condition produced by bacteria when all oxygen supplies are depleted. If severe, the bottom deposits produce hydrogen sulfide, the deposits and water turn black, give off foul odors, and the water has a greatly increased oxygen and chlorine demand.

SPC Chart

Statistical Process Control chart. A plot of daily performance such as a trend chart.

Key Manhole

In collection system evaluation, a key manhole is one from which reliable or specific data can be obtained.