D2.3.1.9 Ensure equipment is FAC. Failure to meet Train staff. cleaned and the Unsuitable Microbiological Re-audit dedicated to water requirements temporary quality. procedures. supply only (see of bypass and/or Identify D2.3.1.5). DWSNZ:2000. supply bypass. reasons for Maintain chlorine Inadequate inadequate residual. residual and Provide training of correct. crews to ensure Identify staff they understand training issues of hygiene. needs and Use of a bypass is provide likely to result in a training. water ‘dirty incident’. Consumers, especially those with special water quality needs (eg, hospitals, food processors), must be informed of the likely deterioration in water quality. Event: INTRODUCTION OF CONTAMINATING MATERIAL INTO THE DISTRIBUTION SYSTEM cont’d D2.3.1.10 Provide securable, Microbiological Failure to meet Re-sample. safe sampling quality. the Contamination Take to locations that allow requirements during sampling. Appropriate avoid access without risk of determinands if of introducing DWSNZ:2000. chemical recurring contamination. contamination is (Guide G2). suspected. Retrain sampling staff.
D2.3.1.9 Unsuitable temporary bypass and/or supply bypass. Ensure equipment is cleaned and dedicated to water supply only (see D2.3.1.5). Maintain chlorine residual. Provide training of crews to ensure they understand issues of hygiene. Use of a bypass is likely to result in a ‘dirty water incident’. Consumers, especially those with special water quality needs (eg, hospitals, food processors), must be informed of the likely deterioration in water quality. FAC. Microbiological quality. Failure to meet the requirements of DWSNZ:2000. Inadequate Train staff. Re-audit procedures. Identify reasons for inadequate residual and correct. Identify staff training needs and provide training. Event: INTRODUCTION OF CONTAMINATING MATERIAL INTO THE DISTRIBUTION SYSTEM cont’d D2.3.1.10 Contamination during sampling. Provide securable, safe sampling locations that allow access without risk of introducing contamination. Microbiological quality. Appropriate determinands if chemical contamination is suspected. Failure to meet the requirements of DWSNZ:2000. Re-sample. Take to avoid recurring (Guide G2). Retrain sampling staff.
distribution-operation-feb14-v2.docx