The economic importance of the Hay River harbour to private industry, commercial fishing industry, tourism, and recreational users in the public sector, the Canadian Coast Guard and the National Defence marine supply operations will have an impact on the cost of living. Twelve communities depend on marine resupply for delivery of essential cargo; four communities depend exclusively on marine and air resupply. Fifteen per cent reduction in maximum barge loads last summer for Hay River; a significant infill and the siltation are key locations in the Hay River harbour and East Channel impacts on NTL's commercial fishing vessels and other vessels.