Water and Wastewater Terms Beginning S

A B C D E F G H I J K L M N O P Q R S T U V W Y Z

sacrificial anode
saddle
saddle connection
Safe Drinking Water Act (SDWA)
safe water
safe yield
safety data sheet (SDS)
salinity
salt
sand equivalent
sand nozzle
sand trap
sanitary collection system
sanitary sewer
sanitary survey
saprophytes
SAR (sodium adsorption ratio)
saturated soil
saturation
saturator
SCADA system (supervisory control and data acquisition system)
scale
SCFM (standard cubic feet per minute)
schedule, pipe
schmutzdecke
scooter
scouring
screen
scum
SDGS system
SDS
SDWA
seal
sealing
sealing water
seasonal water table
Secchi disk
secondary clarifier
secondary element
secondary treatment
sediment
sedimentation
sedimentation basin
seed sludge
segregate
seismic
seizing
select backfill
select bedding
selector
selector recycle
sensitivity
sensor
septage
septic
septic tank
septic tank effluent filter (STEF) system
septic tank effluent pump (STEP) system
septicity
sequencing batch reactor (SBR)
sequestration
series operation
service
service connection
service pipe
service root
set point
settleometer
sewage
sewer
sewer ball
sewer cleanout
sewer gas
sewer jack
sewer main
sewer root
sewer system
sewerage
shear pin
sheave
sheeting
shelf
shield
shim
shock load
shoring
short-circuiting
shredding
SIC code
sidestream
signal word
significant figure
significant industrial user (SIU)
significant noncompliance
silting
simulate
single-stage pump
sink
siphon
skatole
slake
slaked lime
sleeve
sliplining
slope
slough
sloughings
sludge
sludge age
sludge density index (SDI)
sludge digestion
sludge gasification
sludge volume index (SVI)
sludge/volume (S/V) ratio
slug
slurry
small-diameter gravity sewer (SDGS) system
SMCL (secondary maximum contaminant level)
smoke test
snake
SNARL (suggested no adverse response level)
soap cake
sodium adsorption ratio
soffit
soft water
soil displacement
soil pipe
soil pollution
soil stabilization
solenoid
solids concentration
solids retention time (SRT)
soluble BOD
solute
solution
solvent
solvent extraction
solvent management plan
sounding rod
sounding tube
span
SPC chart (statistical process control chart)
specific capacity
specific capacity test
specific conductance
specific gravity
specific yield
spherulitic
splash pad
split sample
spoil
spore
springline
square bar corkscrew
SRT
SSES (sewer system evaluation survey)
SSO (sanitary sewer overflow)
stabilization
stabilized waste
staff gauge
stale water
standard
standard deviation (S)
standard methods
standard solution
standardize
starters (motor)
static head
static lift
static pressure
static water depth
static water head
static water level
station
station, lift
stator
STEF system
STEP system
step-feed aeration
sterilization
stethoscope
stilling well
stop log
stoppage
storativity (S)
storm sewer
stormwater
stormwater collection system
stormwater inlet
stormwater runoff
strain-relief cable
stratification
stray current corrosion
stretch
stringers
stripped gases
stripped odors
structural defect
structural failure
struvite
stuck digester
submergence
subsidence
subsoil geology
substrate
subsurface leaching system
subsystem
sucker rods
suction head
suction lift
sump
sump card
superchlorination
supernatant
supersaturated
surcharge
surcharged manhole
surface loading rate
surface runoff
surface-active agent
surfaced defect
surfaced void
surfactant
surge chamber
surveillance television equipment
suspended growth processes
suspended solids
SVI
swab
switchgear
synergistic reaction