PRACTICAL APPLICATIONS OF TURBIDITY MONITORING

The Philadelphia Water Department (PWD) has expended considerable effo rt to achieve a voluntary 0.1-ntu turbidity goal. This was motivated i n large part by heightened concern about Cryptosporidium, by the expec tation of changes in regulatory requirements under the Safe Drinking W ater Act, and by voluntary participation in the Partnership for Safe W ater. This article summarizes PWD's understanding of, concerns about, and perspectives on the practical applications of turbidity monitoring .