US County - Water Utilities
• There is some rise in number of bill payers till 2010.
• Maximum of 200 customers added in last six years(14792 in 2006 to 14979 in 2011) .
• Overall 1.4% is the net increment in the customer numbers.
Number of customers per year
Potential Fraud Cases - Customer Billing
If we consider the list of all customers who were billed more than 15 times in 7.5 years tenure(17,264 such
• 115 customers received same bill throughout their tenure. There was absolutely no change in the bill
• 800 customers (5%) customers have shown a very minimal or negligible change in their overall bill
• Around 18% of the customers have a deviation of $10 or less, in their overall tenure
A special investigation on these 3,064 customers and their meters might expose fraud /tampered /faulty meters.
The graph shows the
frequency of customers Vs. bill
Analysis on default customers
1. There are 16,255 customers defaulted at least once.1303 customers defaulted 10 or more
times, 360 customers defaulted 20 or more times
2. 16 customers defaulted more than 40 times. Can we put a check to the default
frequency(if not defaulters)? Is late fee independent of frequency of defaults?
3. Defaulted amount till date is more than $ 5 millions, 90% of the defaulted amount is
4. Street sweepers & Construction constitute 79% of the overall defaulted customers.
CustomerID Numberof times
Customers with more than $ 2,500 due