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Table ES-2. Present Watershed Loads, Thresholds Loads, and the percent reductions necessary to achieve the Thresholds <br /> Loads for the Waquoit Bay system. <br /> Percent <br /> Present Target Direct Benthic Flux 4 watershed <br /> Net <br /> Watershed Threshold Atmospheric 3 TMDL reductions <br /> Load' Watershed Deposition needed to <br /> Sub-embayments Load Z ) (kg/day) achieve <br /> (kg/day) (kg/day) (kg/day) (kg/day threshold load <br /> levels <br /> WAQUOIT BAY SYSTEM <br /> groundwater sources <br /> Waquoit Bay 2.088 2.088 11.956 -56.779 -42.735 0.0% <br /> Childs River-upper 12.019 4.076 0.455 -4.291 0.240 -66.1% <br /> Eel Pond-east branch 2.170 0.820 1.011 19.480 .21.310 -62.2% <br /> Eel Pond-south basin 0.523 0.523 0.663 -4.632 -3.445 0.0% <br /> Eel Pond-west branch 16.337 8.808 0.890 -2.900 6.798 -46.1% <br /> Quashnet River 2.773 1.497 0.252 9.496 11.245 -46.0% <br /> Hamblin Pond 4.381 0.953 1.529 5.712 8.194 -78.2% <br /> Little River 1.096 0.211 0.156 2.554 2.922 -80.7% <br /> Jehu Pond 3.912 1.025 0.674 6.897 8.596 -73.8% <br /> Great River 3.671 0.997 1.307 14.222 16.526 -72.8% <br /> Sage Lot Pond 1 2.753 1 1.622 1 0.471 1 -2.726 1 -0.633 1 -41.1% <br /> surface water sources <br /> Childs River 10.622 4.115 - - 4.115 -61.3% <br /> Quashnet River 20.507 13.469 - - 13.469 -34.3% <br /> Red Brook 8.014 2.096 - - 2.096 -73.8% <br /> Waquoit Bay System Total 90.866 42.300 19.364 -12.967 48.697 .53.4% <br /> (1) Composed of combined natural background, fertilizer, runoff, and septic system loadings. <br /> (2) Target threshold watershed load is the load from the watershed needed to meet the embayment threshold concentrations <br /> identified in Table ES-1. <br /> (3) Projected future flux (present rates reduced approximately proportional to watershed load reductions). <br /> 4 Sum of target threshold watershed-load, atmospheric deposition load, and benthic flux load. <br /> Executive Summary 13 <br />