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Abbreviations

Water Distribution & Treatment Abbreviations

TermDefinition
cfs cubic feet per second
MGD Million Gallons per Day
DO dissolved oxygen
mL mililiter
ft feet
ppb parts per billion
ppm parts per million
gpd gallons per day
psi pounds per square inch
gpm gallons per minute
gpg grains per gallon
Q Flow
SS Suspended Solids; Settleable Solids
in inches
TTHM Total Trihalomethanes
TOC Total Organic Compounds
kW kilowatt
TSS Total Suspended Solids
mg/L milligrams per liter
g grams
HAA Haloacetic Acids
HP Horsepower
VS Volatile Solids
amp ampere
BHp Brake Horsepower
EHp Electrical Horsepower
ft-lb/min foot pounds per minute
KWh kilowatt hour
W Watt
WHp Water Horsepower
ac acre
ft2 square feet
in2 square inches
yd2 square yards
ft3 cubic feet
yd3 cubic yards
C Celcius
F Fahrenheit
af or ac-af acre-feet
gpcpd gallons per capita per day
gal gallon
DAF Dissolved Air Flotation
DBP Disinfection By-Product
EPA Environmental Protection Agency
SDWA Safe Drinking Water Act
MCL Maximum Contaminant Level (water quality standards)
NTU Nephelometric Turbidity Unit
pH potential Hydrogen
ppt parts per trillion
PRV Pressure Reducing Valve
GV Gate Valve
HYD Hydrant
PVC Polyvinyl Chloride
DI Ductile Iron
SCADA Supervisory Control and Data Acquisition
TWL Top Water Level
WC Water Column
WTP Water Treatment Plant
Cl Chlorine
TRC Total Residual Chlorine
Created by: jeffwhite
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