Stuck in the mud.
D000818:Animals; D002417:Cattle; D004784:Environmental Monitoring / Q000331:legislation & jurisprudence; D005308:Fertilizers / Q000009:adverse effects* / Q000633:toxicity; D006801:Humans; D012722:Sewage / Q000009:adverse effects* / Q000706:statistics & numerical data; D014481:United States; D014484:United States Environmental Protection Agency / Q000331:legislation & jurisprudence*
D005308:Fertilizers; D012722:Sewage