P1.1.1.1 Start water Water Drop in system Prepare new conservation demand. pressure. resource Drought. measures as soon as consent Source Customer water shortage application. rate. complaints becomes likely. about low Find new System Plan the development pressure. sources. pressure. and use of the water Increase source, and the need storage to identify and capacity. develop new sources, Partially close based on the valves through river/stream’s safe the network to yield. equalise pressures. P1.1.1.2 Negotiate new Water Drop in system Find new resource consents or demand. pressure. sources. Resource emergency consent Source usage Customer Increase provisions. limitations. rate. complaints storage about low capacity. System pressure. pressure. Event: RAW WATER QUALITY TOO POOR TO TREAT Possible hazards: Germs and chemical determinands particularly disinfection by-products (trihalomethanes, haloacetic acids, chloral hydrate). Level of risk: High1
P1.1.1.1 Drought. Start water conservation measures as soon as water shortage becomes likely. Plan the development and use of the water source, and the need to identify and develop new sources, based on the river/stream’s safe yield. Water demand. Source rate. System pressure. Drop in system pressure. Customer complaints about low pressure. Prepare new resource consent application. Find new sources. Increase storage capacity. Partially close valves through the network to equalise pressures. P1.1.1.2 Resource consent limitations. Negotiate new resource consents or emergency provisions. Water demand. Source usage rate. System pressure. Drop in system pressure. Customer complaints about low pressure. Find new sources. Increase storage capacity. Event: RAW WATER QUALITY TOO POOR TO TREAT Possible hazards: Germs and chemical determinands particularly disinfection by-products (trihalomethanes, haloacetic acids, chloral hydrate). Level of risk: High1