Here you'll find answers to questions we receive about water.
Tap water is sometime safer.
Read this story. The DEP and local departments of health sometimes close swimming areas due to bacterial overloads and the impairment to human health caused by this bacteria. The answer depends on how long the water has been contaminated and how you eat the fish. If the water has only been contaminated for a few days and you cook the fish thoroughly to kill any bacteria, you should suffer no affects. However if you eat the fish raw, this could cause illness and I would advise against this practice.