The general intent of the project is to develop an interactive watershed model of existing conditions. The preferred modelling software is ICPR, although other software may be acceptable with appropriate justification. The selected software shall be capable of running multiple storms and shall be able to be modified as basin conditions change. The model will include the primary St. Augustine Creek flow path plus major tributaries such as the system which drains the north Pooler area. The model shall be developed with a moderate level of detail which shall include: - The major St. Augustine Creek flow path of natural channels and associated roadway crossings, - Major tributary systems, such as the one draining the north Pooler area. This will include existing lagoon systems and connecting pipes or an acceptable simulation of such but will not reach the level of assessing collector pipes, - Major contributing developments such as The Villages at Godley Station Lakeshore Subdivision, including lagoon systems and outfalls or an acceptable simulation of such, and - Other commercial, industrial, or residential developments which outfall into the basin, have a contributory area of 20 acres or more, and which have a separate storm water management system.