Turbidity fluctuations and levels greater than that in water leaving the treatment plant. Follow the actions given in Figure 3.3 of the Required DWSNZ:2000. actions: Identify the reason for the failure and rectify. Record cause of system failure and steps taken to correct. Modify water safety plan if necessary. Manager designated responsible for the water supply. Responsibility: Safety Plan Performance Assessment To make sure that your supply’s water safety plan (formerly known as a Public Health Risk Management Plan, PHRMP) is working properly, periodic checks are needed. The overview document outlines what needs to be done. The following table provides the detailed information for checking this particular supply element. Bacteriological sampling of burst main repairs and mains What to measure renewal projects. or observe: Chemical Priority 2 determinands (if any exist). Hygiene and disinfection practices. Job sheets to record procedures used, observations made and problems encountered. Continuous chlorine residual. Minimal consumer complaints about suspected waterborne disease, discoloration, staining and taste and odours. coliforms or heterotrophic plate count. E. coli, Turbidity. Remember that these measurements can be influenced by a wide range of factors including site-specific characteristics of the distribution system and the performance of the treatment plant.
Turbidity fluctuations and levels greater than that in water leaving the treatment plant. Required actions: Follow the actions given in Figure 3.3 of the DWSNZ:2000. Identify the reason for the failure and rectify. Record cause of system failure and steps taken to correct. Modify water safety plan if necessary. Responsibility: Manager designated responsible for the water supply. Safety Plan Performance Assessment To make sure that your supply’s water safety plan (formerly known as a Public Health Risk Management Plan, PHRMP) is working properly, periodic checks are needed. The overview document outlines what needs to be done. The following table provides the detailed information for checking this particular supply element. What to measure or observe: Bacteriological sampling of burst main repairs and mains renewal projects. Chemical Priority 2 determinands (if any exist). Hygiene and disinfection practices. Job sheets to record procedures used, observations made and problems encountered. Continuous chlorine residual. Minimal consumer complaints about suspected waterborne disease, discoloration, staining and taste and odours. E. coli, coliforms or heterotrophic plate count. Turbidity. Remember that these measurements can be influenced by a wide range of factors including site-specific characteristics of the distribution system and the performance of the treatment plant.
distribution-operation-feb14-v2.docx