AWWA DSS58703

Statistics are given on the performance of the Rolling River Water Treatment Plant as of January 1, 2003. Questions regarding the assessment of these readings are asked that inlcude: what should be checked before making adjustments; what action should be taken when filter turbidity remains stable but settled water turbidity rises; what results should be expected for turbidity, pH, and filter performance; how could filter turbidity be improved temporarily while waiting for adjustments to take effect; whether alum metering pump is delivering alum to the rapid mix; would filter aid help; and, what action should be taken when the settled water turbidity comes down but the chlorine contact basin turbidity reaches 0.30 NTU?