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<br />Conclusion <br /> <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br />I <br /> <br />Ammonium <br /> <br />Ammonium is a form of nitrogen that is highly available to plants and can be <br />found in septic and agricultural inputs. The values found at Trott Brook are within the <br />range expected for a system of this type and remain relatively constant. <br /> <br />Nitrate/Nitrite <br /> <br />Nitrate/nitrite is another form of nitrogen that can be used by plants. It can be <br />found in high quantities in septic seepage and agricultural runoff, especially from animal <br />manure. High concentrations of these compounds are a health hazard to young children. <br />They interfere with the uptake of oxygen by the red blood cells and can cause brain <br />damage and death in children less than two years of age. The U.S. Environmental <br />Protection Agency's Maximum Contaminant Level for drinking water is 10 mg/L. The <br />nitrate levels in Trott Brook on average are approximately 3 mg/L, well below legal <br />limits. <br /> <br />In-Vivo Chlorophyll <br /> <br />This is an estimate of the amount of algae within the water. There values obtained <br />at Trott Brook were very low. This is not unusual considering the time of year the <br />samples were taken. A better estimation of the amount of primary productivity in the <br />stream could be obtained if these measurements are taken during the spring and summer. <br /> <br />Since our water quality sampling represents only one period in time, it is difficult <br />to draw conclusions from this data. It is suggested that further monitoring be conducted <br />and periodic monitoring be established for Trott Brook. <br /> <br />6 <br />