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Acronyms and Abbreviations

BOD5
Biochemical oxygen demand (the amount of oxygen consumed by micro-organisms in a water sample measured over 5 days at 20°C).
cumec
cubic metres per second
DIN
Dissolved Inorganic Nitrogen (NH)
DO
Dissolved Oxygen
DoC
Department of Conservation
DRP
Dissolved Reactive Phosphorus
NH4-N
ammoniacal nitrogen, organic form
NIWA
National Institute of Water and Atmospheric Research
NO3-N
nitrate nitrogen or nitrate-N
NWQN
National Water Quality Network
ppb
parts per billion
SS
Suspended solids
TKN
Total Kjeldahl nitrogen (organic nitrogen plus ammonia)
TN
Total Nitrogen
TP
Total Phosphorus
WCO
Water Conservation Order