Literature Review of Contaminants in Livestock and Poultry Manure and Implications for Water Quality
http://nepis.epa.gov/Exe/ZyPDF.cgi/P100H2NI.PDF?Dockey=P100H2NI.PDF
See page 13 for pathogens and page 39 for artificial hormones
In 5 years, no decrease in Lake Erie pollutants, study finds
http://www.vindy.com/news/2018/apr/22/5-years-no-decrease-lake-erie-pollutants-study-fin/
