Complex sentence: Within Farmville there are several different areas which are a concern due to high amounts of heterotrophic bacteria and "Escherichia coli", classified as coliform bacteria they live within the intestines of warm blooded animals.
Split into simpler sentences: Within Farmville there are several different areas which are a concern due to high amounts of heterotrophic bacteria and Escherichia coli. It is classified as coliform because it lives within the intestines of warm blooded animals.