source or sources of fecal contamination at a beach are often not
known for certain because of the complex workings of wind, weather
and water patterns, in concert with the origin of fecal contamination,
warm-blooded animals. These animals include waterfowl (geese, sea
gulls, terns, etc.), wildlife (deer, beaver, rabbits, bear, etc.),
domesticated animals (horses, cows, pigs, etc.), pets (dogs, cats, etc.),
Fecal contamination can reach waterways through multiple methods, including direct deposition, stormwater runoff that carries fecal matter from inland, failing or leaking individual septic systems, sanitary sewer systems breakages and overflows, improper diaper disposal, swimmer fecal accidents, improper boat waste disposal, and much more.