Industrial Demand in Havelock - Records show there are three ‘big’ consumers in Havelock that account for around 100 m/day. Two of the three consumers have significant amount of3 underground pipework and should be encouraged to undertake on-site water balance audit to check for leaks within their property as it is not obvious where the water is being used. Community Demand - Around 17% of the population of Marlborough is self-reliant for water supply. Water is supplied from individual on-site wells or small community schemes. These schemes were assessed in the Water Sanitary Services Assessment (WASSA) 2005. The Assessment considered 22 small community schemes. The Register of Community Drinking Water Suppes 2011 or the Marlborough region lists 63 comunity suppes of geater tan 25 persons (for >60 days/annum) There are a number of individual properties and communities on the periphery of the current supply areas that have either actively sought to connect to the reticulation or would benefit from doing so. The Council considers applications from small communities to develop a municipal supply on the basis of the needs of the community, the availability of a water source, the costs and the willingness of the community to pay for the infrastructure. Applications from individual property owners are considered on their merits for an ‘out of district’ connection and maybe granted depending on the available capacity of the system. Leakage - All reticulation systems have an amount of unaccounted for water, of which leakage is normally the largest component. In areas where all customers are metered it is possible to get an indication of pipeline losses by deducting the amount of water delivered from the volume leaving the treatment plants. In the absence of universal metering it is more common to estimate losses by analysing flows during periods of minimum consumption. Midnight to 04.00 hours is a time when of minimum domestic flows and in most cases it is possible to measure or estimate industrial use. The marginal costs of supplying additional water in all areas are relatively low whilst the costs of finding and fixing leaks are relatively high. In most cases active leak detection and prevention of losses only becomes efficient when it enables deferment of capital investment. A leak detection and repair project was undertaken in Renwick in the spring 2014 the results have yet to be assessed. Page 44