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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 <br />converted o Bio -P <br />2,500,000 Metro Plant Effluent Total Phosphorus, 1998-2013 <br />2,000,000 <br />al 1,500,000 <br />47 <br />0. 1,000,000 <br />O500,000 <br />1 <br />All of Metro Plant <br />converted to Bio -P <br />:e re re .40 '410 :60 :60. .4, '4, :e <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 />