© www.mitar.co.uk 2011 Electric Fly Control Unit Risk Calculator Risk Level Probability Severity Unlikely to ever experience flying insect activity Some flying insect activity may be experienced Regular flying insect activity may be expected Extremely likely to experience flying insects in considerable numbers Regular flying insect activity highly likely 1. 5. 4. 3. 2. Virtually no impact on business, stock, building or staff May cause minor damage / contamination / distress / financial loss Likely to cause minor damage / contamination / distress / financial loss Likely to cause substantial damage / contamination / distress / financial loss Likely to cause great damage / contamination / distress / financial loss 5. 3. 4. 2. 1. To establish the need for an electric fly control unit in a particular area, a rating between 1 - 5 should be decided for both the’probability’ and ‘severity’ as shown below Probability Severity 1. 2. 3. 4. 5. 2. 3. 4. 5. 8 15 12 9 6 10 8 6 4 25 20 15 10 20 16 12 The ‘Probability’ (1-5) should be multiplied by the ‘Severity’ (1-5) to give a score between 1 and 25. Risk Assessment Score Electric Fly Control Unit Required QA Visits per Annum 1 - 2 N/A Yes 11 - 25 4 - 10 Yes No If in doubt, the installation of  an electric fly control unit sited appropriately, shoud be considered as it can do no harm No 3 Standard Service plus Catch-tray Analysis if appropriate Standard Service plus Catch-tray Analysis if appropriate N/A The Risk Assessment score is a good indicator as to the ideal service frequency on site, although this can change quickly and so should be considered on an on-going basis.
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