bids are invited for custom bid for services - monitoring and assessment of various environmental paratmeters at kamarajar port limited, chennai, tamil nadu - ambient air quality [5 locations x 52 weeks a year x 2 times a week x 3years = 1560 s les] , marine water quality [6 locations x 12 months a year x 2 times a month x 3years = 432] , surface water quality [4 locations x 12 months a year x 2 times a month x 3years = 288] , fresh/drinking water quality [8 locations x 12 months a year x 2 times a month x 3years = 576] , ambient noise levels [5 locations x 52 weeks a year x 2 times a week x 3years = 1560] , ground water quality [2 locations x 12 months a year x 2 times a month x 3years = 144] , sediment quality [4 locations x 12 months a year x 2 times a month x 3years = 288] , stp outlet water quality [3 locations x 12 months a year x 2 times a month x 3years = 216] , providing logistic and operational support during annual ambient air quality, noise level and effluent water quality monitoring surveys conducted by tamil nadu pollution control board (tnpcb), including transportation, supply of consumables, deployment of manpower, shifting and handling of monitoring instruments, and all allied arrangements required for smooth conduct of surveys at designated locations, complete as directed by the engineer-in-charge. (4 times in a year x 3 days x 3 years = 36 days)