P10.1.2 Carry out biennial Flows. No water. Prepare and inspection of power follow No System Reservoir source, connections inspection because of pressures. levels are and electrical schedule. pump failure difficult to Reservoir equipment. due to power maintain. Modify levels. failure. Set up standby standby Frequent Pump generator to cut in generator to pump maintenance automatically when allow breakdowns. log. main power fails. automatic cut Frequency of in. E. coli. Run standby unacceptable generator monthly. Carry out FAC. pressure residual drops in the disinfection in system. the Maintenance distribution log not kept. zone if not presently done. with DWSNZ:2000. P10.1.3 Locate above No water. Relocate likely flood levels. pumps. No water System Reservoir because of Correctly align and pressures. levels are Re-align pump failure bolt pumps to plinth. difficult to pumps and Reservoir due to flooding maintain. secure. Protect pump(s) from levels. or other the weather. Frequent Provide Pump damage. pump for pump(s). maintenance breakdowns. log. Disinfect the Frequency of distribution E. coli. unacceptable zone if not FAC. pressure presently drops in the disinfected. system. Maintenance log not kept. with DWSNZ:2000. INCORRECT CHEMICAL DOSING LEADS TO POOR TREATMENT Possible hazards: Germs and chemical contaminants. Level of risk: High
P10.1.2 No because of pump failure due to power failure. Carry out biennial inspection of power source, connections and electrical equipment. Set up standby generator to cut in automatically when main power fails. Run standby generator monthly. Flows. System pressures. Reservoir levels. Pump maintenance log. E. coli. FAC. No water. Reservoir levels are difficult to maintain. Frequent pump breakdowns. Frequency of unacceptable pressure drops in the system. Maintenance log not kept. with DWSNZ:2000. Prepare and follow inspection schedule. Modify standby generator to allow automatic cut in. Carry out residual disinfection in the distribution zone if not presently done. P10.1.3 No water because of pump failure due to flooding or other damage. Locate above likely flood levels. Correctly align and bolt pumps to plinth. Protect pump(s) from the weather. System pressures. Reservoir levels. Pump maintenance log. E. coli. FAC. No water. Reservoir levels are difficult to maintain. Frequent pump breakdowns. Frequency of unacceptable pressure drops in the system. Maintenance log not kept. with DWSNZ:2000. Relocate pumps. Re-align pumps and secure. Provide for pump(s). Disinfect the distribution zone if not presently disinfected. INCORRECT CHEMICAL DOSING LEADS TO POOR TREATMENT Possible hazards: Germs and chemical contaminants. Level of risk: High