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GLOSSARY OF WATER AND WASTEWATER TERMS
A
B
C
D
E
F
G
H
I
J
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M
N
O
P
Q
R
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U
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W
X
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Z
Symbols and Numbers
All information in this glossary is copyrighted by the CSUS Foundation, Office of Water Programs.
O And M Manual
Obligate Aerobes
Obstruction
Odor Panel
Odor Threshold
Off Line
Off Pounds
Offset
Offset Invert
Offset Joint
Offset Manhole
Offset Pipe
Offset Trough
Ohm
Olfactometer
Olfactory Fatigue
Oligotrophic
Operating Pressure Differential
Operating Ratio
Operator Interface
Organic
Organic Waste
Organics
Organism
Organizing
Orifice
Orp
Orthotolidine
OSHA
Osmosis
Ouch Principle
Outfall
Outfall Sewer
Outlet
Overall Efficiency, Pump
Overdraft
Overflow Manhole
Overflow Rate
Overflow Relief Line
Overhead
Overturn
Oxidation-reduction Potential
Oxidation-reduction Reaction
Oxidation
Oxidation Ditch
Oxidation State Oxidation Number
Oxidized Organics
Oxidizing Agent
Oxygen Deficiency
Oxygen Enrichment
Ozonation
