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watershed includes approximately 15.4 acres of athletic fields. Assuming that nitrogen is applied <br /> to these fields at a rate of 3 lbs/1,000 sq. ft.with a 20% leaching rate,this nitrogen input <br /> represents approximately 400 lbs, or 180 kg across the watershed. This estimate does not <br /> include other fertilized municipal properties such as"high-visibility"properties for each <br /> municipality(e.g., Town Hall or a downtown park). <br /> Commercial properties <br /> No fertilizer loads were estimated for commercial properties in the Pleasant Bay watershed. This <br /> is consistent with most, if not all of the other MEP models(Ed Eichner, SMAST personal <br /> communication). <br /> Golf courses <br /> The Pleasant Bay watershed includes four major golf courses. The MEP model nitrogen loading <br /> assumptions differ for various types of turf and for each golf course. Table 1 summarizes the <br /> nitrogen loading applications used for each golf course and turf type as represented in the model. <br /> Current golf course practices are discussed in Section 2.3 and for the most part,represent a <br /> reduction in fertilization. The model assumes a constant leaching rate for golf courses of 20%; <br /> therefore application rates reported in Table 1 should be multiplied by 20%to obtain nitrogen <br /> leached for each turf type. <br /> Table 1. Pleasant Bay golf course nitrogen application rates by turf type(Source: MEP <br /> model <br /> N Fertilizer Application Rate by Turf Type <br /> Golf Course Name (lbs/1,000 sq.ft./year) <br /> Green Tee Fairway Rough <br /> Cape Cod National Golf Club 4.5 2.25 1.75 2 <br /> Captains Golf Course 6 5.5 4.5 4.5 <br /> Eastward Ho! Country Club 3 3 3 2 <br /> Chatham Seaside Links 3 3 3 2 <br /> 2.2 MEP MODEL-PLEASANT BAY LOADINGS <br /> Using the Pleasant Bay MEP model,HW calculated nitrogen inputs for existing and future <br /> residential lawns, cranberry bogs, cemeteries, and golf courses. HW also estimated this load as a <br /> function of the total nitrogen load to the watershed (i.e., controllable sources, and natural and <br /> atmospheric sources) and as a function of the controllable sources (i.e., including wastewater and <br /> impervious cover runoff). Results of nitrogen applied and leached for each land use are <br /> summarized in Table 2 both in lbs and kilograms (kg)per year. Municipal and commercial land <br /> uses did not show any fertilizer inputs in the model, and are therefore not reported in Table 2. <br /> Pleasant Bay Fertilizer Management Plan 3 Horsley Witten Group, Inc. <br /> Final Report December 2010 <br />