The study monitor the dynamic pressure from phosphorus deposition on E.coli transport in coastal deltaic lake, such environment were observed to develop lots of negativities from various factors, the study observed high deposition of phosphorus, these substance are micronutrient family that increase the deposition of E.coli in lake and other river environments, the study monitor the behaviour of E.coli in lake under variation of phosphorus pressure in the system, dispersion and dynamic influences from such substances generated fluctuation of E.coli migration in the study environment, the derived solution generated simulation values that were compared with experimental values, and both parameters developed some level of faviourable fits, the study has also observed other environmental factors that may cause fluctuation of the E.coli in the study area.