Sources of E. coli can include untreated human sewage, failing septic tanks, livestock agriculture, pets, wildlife, and illegal connections from home sewer systems to surface water.
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A: Bacteria in coastal recreational waters can come from a variety of sources, both near the shore and inland. These sources include development, sewage treatment plants, septic tanks, storm water runoff, boating waste, humans, and animals.
E. coli and beach pathogensUnfortunately, unsafe water conditions can prevent their safe use and enjoyment. The two most common reasons for beach closures are elevated concentrations of E. coli and/or cyanobacteria (blue-green algae) blooms.
Beach-related IllnessesChildren, the elderly and people with weakened immune systems are the most likely populations to develop illnesses or infections after coming into contact with polluted water, usually while swimming. Fortunately, while swimming-related illnesses are unpleasant, they are usually not very serious.
Read the beach safety signs at the entrance to the beach. Once on the beach, look for beach warning flags, often posted on or near a lifeguard's stand. A green flag means water conditions are safe and other colors mean conditions are not safe. These flags are there to protect you.
Another potential source of illness includes some types of cyanobacteria that form algal “blooms” (discolored water) and the toxins they produce. When people are exposed to cyanotoxins, they may have hay fever-like symptoms, skin rashes, sore throat, cough, nausea, vomiting, diarrhea, or even kidney or liver damage.
Not necessarily. Beach water quality problems are often localized because our lakes are so large. A number of beaches tend to experience high E. coli after a large rainstorm when contaminants on land can be quickly delivered to the lake.
Surf/Rip ResourcesA trip to the beach should be fun. Unfortunately, many people are injured or killed along our nation's beaches by hazards such as dangerous currents, tsunamis, heat and lightning. The National Weather Service can help ensure you leave the beach with good memories.
When it comes to walking along the shore, our bodies need to compensate for a number of challenges: Typically, we need to trek through dry, loosely-packed sand before making it to the beach. Loose sand shifts under the weight of the body, making leg, seat, and back muscles work much harder to keep us upright.
The beach is a popular summer playground for humans, but pathogens like to hang out there, too, and can infect you, if you're unaware of them. These bacteria, viruses and microorganisms can get into the water through runoff after rainfall, untreated sewage and even from other beachgoers.