Case study 1
The site was highlighted as having unacceptable variances. Investigation led to the identification of a tank leak.
- Back Office PC data and Console data did not match.
- Back Office PC data incorrect and had not been amended.
- Sales figures missing from Back Office PC data.
- Till ZD reads and Pump Console reads did not match.
- Dip readings either read incorrectly or not taken.
- Dipsticks damaged and short.
- Pump tote readers disabled.
On Site Investigation
- Tank 1 Dipstick short by the equivalent of up to 450lt variance
- Tank 2 Dipstick short by the equivalent of up to 100lt variance
- Tank 3 Dipstick short by the equivalent of up to 880lt variance
- One Pump priced incorrectly, dispensing at £0.644 per litre actual price should have been £0.669, leading to a cash variance
- No Communications Link between POS and PC giving rise to data input errors
Sales figures missing and incorrect on one day for example
|Tank||Back Office PC Data||Console Data|
|1||4442 ltrs||1242 ltrs|
|2||375 ltrs||1862 ltrs|
|3||867 ltrs||2581 ltrs|
Dips not taken every day. Also three of the dipsticks were short.
- Pump maintenance contractor to visit site to replace the missing pump totes, and to instruct the site manager in their use
- Replacement dipsticks ordered
- Tank testing for 2 out of the 7 tanks arranged. One tank failed therefore site operator re-lined tank.
- Site manager shown how to use pump controller report to ensure that all transactions were transferred to POS.
- Site operator to ensure dips were taken accurately and everyday.