LONDON WATER RING MAIN.

Keywords: THAMES WATER, WATER SUPPLY, SYSTEMS, SUPPLY, WATER, TRUNK, DISTRIBUTION, POTABLE, MAINS, RETICULATION, SOURCES, TREATMENT, WORKS, URBAN, REPLACEMENT, AGEING, AREAS, LONG TERM, PLANNING, RELIEF, RING, RINGS, PUMPED, PUMPS, GRAVITY FED, TUNNELS, CONSTRUCTION, DEEP, CLAYS, LONDON CLAY, CAPACITY, DEMAND, ECONOMICS, MANAGEMENT, COSTS, BENEFITS, COST BENEFIT, ESTIMATING, SAVINGS, FEASIBILITY, STUDIES, HYDRAULIC, ANALYSIS, SIMULATION, DEVELOPMENT, CONTROL, OPTIMISATION, HISTORY, OPERATION, MODES