Waterworks Road and Scott Road:
Your water is safe to drink!
Amount of water: Consented to take up to 10,000m3/day or 10million litres.
Population: 7500 (as at 2015)
Number of samples taken: 276 samples obtained– no E.coli detected.
Your water comes from here:
Water Works Road:
What we achieved:
- Part 4 of the DWSNZ (Treatment plant)
- Part 4 of the DWSNZ (Distribution zon)
- Part 7 of the DWSNZ (Cyanotoxin compliance)
- Part 8 of the DWSNZ (Chemical compliance)
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What we didn't achieve:
- Part 5 of the DWSNZ (protozoa compliance, process only)
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Why we didn't achieve them:
- Monthly compliance boundaries were not met due to filters not automatically shutting down
- The water leaving the filters was more than the specified limits of NTU (unit to measure water clarity) for more than 1% and 5% of the compliance month
- The NTU (unit to measure clarity of the water) for the water coming out of the filters was greater than the specified limit for the duration of 3 minutes at certain times during the compliance year
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How we're adressing it:
- District wide MPDC have invested over $2M to upgrade treatment plant instruments and processes
- Investigating why automatic shutdown features on filters was failing
- Full alarm review has taken place improving the timeframe between when non-compliances are about to occur and when the alarms are sent to our water treatment technicians (creating faster response times
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Scott Road:
What we achieved:
- Part 4 of the DWSNZ (Distribution zone)
- Part 8 of the DWSNZ (Chemical compliance)
- Part 9 of the DWSNZ (Radiological compliance)
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What we didn't achieve:
- Part 4 of the DWSNZ (treatment plant - there were not enough samples taken)
- Part 5 of the DWSNZ (protozoa compliance process)
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Why we didn't achieve them:
- No protozoa treatment process in place
- The correct amount of samples were not taken at the treatment plant
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How we're addressing it:
- Upgrading our communication network between instruments at the treatment plant and our IT systems so that data cannot go missing
- District wide MPDC have invested over $2M to date, to upgrade treatment plant instruments and processes
- Improving internal processes to ensure the required number of UV manual samples are taken
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