Part 1 Summary report: advancing ICA technology by eliminating the constraints, G. Olsson. Part 2 Invited paper: future directions in instrumentation, control and automation in the water and wastewater industry, T.D. Vassos. Part 3 Management commitment and strategies: critical variables in system success - top managements' commitment is key, M.H. Winter and A.W. Manning; functional approach leads to successful ICA across 124 water and 389 wastewater treatment works, M.J. Parker et al. Part 4 Collection system monitoring and control: integrating a catchment simulator into wastewater treatment plant operation, L.-G. Gustafsson et al; pollution measurement accuracy using real time sensors and wastewater samples analysis, G. Ruban et al. Part 5 Water distribution control systems: an overview of the trunk scheduling system for the London ring main, D. Burnell et al; uprating and development of a regional telemetry scheme, R. Huntington. Part 6 Dynamic modelling and simulation: modelling and simulation of wastewater treatment processes, J.F. Andrews; reduced order models for on-line parameter identification of the activated sludge process, U. Jeppsson and G. Olsson; evaluation of sensitivity and observability of the state vector for system identification and experimental design, E. Ayesa et al. Part 7 Process control strategy development: diagnosis expert system for the activated sludge process using biota observed by microscopic examination, M. Ichikawa et al; experience with the relay procedure for tuning controllers in automatic control of chlorination, M.T. Garrett et al; activated sludge control advisor, K.R. Stimson. Part 8 Fuzzy control: intelligent operations support system for activated sludge process, S. Watanabe et al; statistical analysis of operation data and automatic control on fluidized bed incineration plant with dryer, S. Minami et al. Part 9 Respirometry based process control: control of activated sludge plants based on measurement of respiration rates, A. Klapwijk et al; on line respirometry - a powerful tool for activated sludge plant operation and design, J.B. Watts and W.F. Garber; on-line estimation of the respiration rate in an activated sludge process, B. Carlsson. Part 10 Instrumentation applications and maintenance: development of the ammonia biosensor monitoring system, H. Tanaka et al; measurement of trihalomethanes (THM) in drinking water with an automatic THM analyzer, K. Kawakami et al. Part 11 Control strategies application: effect of supplemental carbon source on phosphate removal in an alternating activated sludge process, S.H. Isaacs et al; alternative method for the control of balancing tank at a wastewater treatment plant, A.J. Mather and I.S. Shaw; the usefulness of on-line monitoring in effecting savings in combined biological and chemical removal of phosphorus in activated sludge plants, L.H. Lotter and A.R. Pitman.