 At that time water revenues were extremely low, there was no functioning customer database, virtually no metering, and low bill collection efficiency.At least 22% of customers did not receive bills at all, partly because water connections were carried out by one department and billing by another which did not receive any information about water connections from the former.In November 1992 bids were launched, in March 1993 the results were announced and in November 10-year service contracts were signed with four firms, each for one block of the capital