The results of far field modeling of the wastefield formed by the Sand Isla
nd, Honolulu, ocean outfall are presented. A far field model, FRFIELD, was
coupled to a near field model, NRFIELD. The input data for the models were
long time series of oceanographic observations over the whole water column
including currents measured by Acoustic Doppler Current profilers and densi
ty stratification measured by thermistor strings. Thousands of simulations
were made to predict the statistical variation of wastefield properties aro
und the diffuser. It was shown that the visitation frequency of the wastefi
eld decreases rapidly with distance from the diffuser. The spatial variatio
n of minimum and harmonic average dilutions was also predicted. Average dil
ution increases rapidly with distance. It is concluded that any impact of t
he discharge will be confined to a relatively small area around the diffuse
r and beach impacts are not likely to be significant. (C) 1998 Published by
Elsevier Science Ltd. All rights reserved.