Specifications include, but are not limited to: A wastewater discharge modeling technical review and support for the Large Commercial Passenger Vessel Discharge General Permit. The Department of Environmental Conservation, Division of Water, is soliciting proposals for technical support of mixing zone analysis. This project shall review existing uses of mixing zone analysis for the 2014 General Permit, determine what improvements are possible, model ships for permit development, and provide improvements to the existing model or use of alternative models. The scope of work is separated into the following tasks. Task 1 – The contractor shall host a kick off meeting with DEC. Task 2 – The contractor shall develop and provide to DEC a review of the 2014 General Permit modeling, review of the appropriate models or modifications needed to models for future work, and information on the cost and time of implementing recommendations based on the review. A sensitivity analysis shall be completed to document how uncertainty in any of the input parameters could affect the recommended or modified model. Task 3- The Contractor shall use the review and recommendations developed in Task 2 to implement an appropriate mixing zone model. Task 4 - The Contractor shall model large commercial passenger vessel discharges permitted to discharge in 2019 using the model from task 3 in preparation of the next general permit.