Discussion on Papers 5 and 6

PROFESSOR J. PICKFORD, Loughborough University of Technology, UK During a visit to the Philippines several years ago I was very impressed by LWUA's training programmes, especially those concerned with members of local committees (committees of lay people). Can Dr Padernal say something about these programmes?

MR E. W. WARNER, Water and Sewerage Authority, Trinidad and Tobago Dr Padernal indicated that they were constructing about 12 000 rural water supply systems per year. In Trinidad and Tobago we have been constructing such systems although not on that scale. However, on account of our efforts to increase agricultural activity the problem of pesticides entering the water has arisen. Consequently we sometimes have to install pressure filters with activated carbon to adsorb these pesticides, thus increasing the capital cost of the final system. We are therefore pushed into constructing installations involving much higher capital expenditure so that the initial intention is almost defeated, that is, a low-cost rural water supply system. What is the experience in the Philippines with pesticide contamination of small rural water supplies?