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Published byAusten Clarke Modified over 8 years ago
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Water Quality and Customer Contacts for 2014
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Water quality events 2010 -2014 and category 3 and above events
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Network water quality events
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Network improvement programmes Improvements to network risk assessment process. Including review of information to be included for dynamic risk assessments (all works). Planned work RA is now split into 2 sections: Initial planning phase and return to normal operation. Increased use of hydraulic modelling. Improved utilization of online turbidity instruments, pressure monitors and loggers. Guidance briefed out via classroom based training.
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Overall water quality performance (MZC)
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Improvements for taste and odour compliance Earth / musty – raw water algae. Algal management plans – source to tap. Risk based sampling for geosmin and 2MIB on raw and final. Onsite taste and odour procedure. Purchase of temporary PAC rigs. » Pencil shavings – black alkathene. Investigate material of service pipe. Replace Company’s side. Advise customer to replace their side if present. Resample.
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Disinfection Control Index Measures taken to improve our coliform bacteria compliance at WTW Sample tap replacement programme. Sample line replacement programme is on-going. Optimum flushing time for sample lines. Increased site audits. Review of effectiveness of disinfection processes. Training and awareness for site personnel
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Customer contacts
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