CSO Control Program -- Glossary of Terms The following is a list of definitions of terms about combined sewers and more generally about wastewater treatment. a-c | d-g | h-l | m-p | r-s | t-z Telemeter To transmit to a distant receiving station by radio or other electronic means. Toxic Causing death, disease, behavioral abnormalities, cancer, genetic mutations, physiological malfunctions (including malfunctions in reproduction), or physical deformations in any organism or its offspring upon exposure, ingestion, inhalation, or assimilation. Treatment Chemical, biological, or mechanical procedures applied to industrial or municipal wastewater or to other sources of contamination to remove, reduce, or neutralize contaminants. Trunk sewer This is a larger pipe in which smaller branch and submain sewers are connected. It may also be called a main sewer. Washington Administrative Code (WAC) The codified regulations adopted by various Washington state agencies through the rule-making process. Wastewater Total flow within a sewerage system. In separated systems, it includes sewage and infiltration/inflow. In combined systems, it includes sewage and stormwater. Wastewater collection system The piping and pumping system used for the collection and conveyance of domestic, commercial, and industrial wastewater. Water quality criteria Standards used to protect of water for drinking, swimming, raising fish, farming or industrial use. Water pollution The addition of harmful or objectionable material to water in concentrations or sufficient quantities to adversely affect is usefulness or quality. Weir An overflow section of a pipe. a-c | d-g | h-l | m-p | r-s | t-z |