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point and nonpoint sources. Point sources of pollution have identifiable points of entry into the <br /> water such as a discharge from a pipe from a wastewater treatment plant or manufacturing <br /> plant. Nonpoint sources of pollution are more diffuse and generally come from land areas that <br /> contribute pollutants when rain runs over the land or snow melts and washes away the <br /> pollutants. Nonpoint sources of pollution often pick up contaminants such as fertilizers from <br /> lawns and pesticides from farmland, eroded soil from stream and river banks or gas and oil from <br /> parking lots. Appendix B includes a list of common nonpoint source pollutants. <br /> Figure 4. Metropolitan Plant Effluent Total Phosphorus, 1998-2013 <br /> 25%of Metro Plant t <br /> converted Bio-P <br /> 2,5W,,D Metro Plant Effluent Total Phosphorus, 1948-2013 <br /> I � <br /> I <br /> 2,000,000 <br /> Q <br /> CL 1,000,d00 of Metro P#�t <br /> cnreaerte�l to liar P <br /> � 500,000 <br /> 0 , ' r , <br /> 4P isp <br /> . � . . <br /> The Council has made significant progress in reducing our contribution from our wastewater <br /> treatment plants given the technology we have today to reduce the pollutants of concern. Cities <br /> have come a long way with reducing nonpoint sources of pollution by using best management <br /> practices and low impact development practices to treat runoff from smaller urban sites and the <br /> new Agriculture Certification Program aims to reduce pollutants from farm fields but there is still <br /> a lot that can be done in this area. <br /> 26 <br />