Federal biologists are pointing to indicators that Fish Creek which flows through Wilson is polluted. A recent study by the US Geological Survey and published recently in the Jackson Hole News and Guide says the creek is seeing high levels of algae now. The cause of the increased algae growth may be linked to nitrates coming from septic and sewage effluent, manure or a mixed source. In the words of the report, “local residents began observing an increase in the growth of algae and aquatic plants in Fish Creek during the last decade.” To better understand the hydrologic system and the possible relation to aquatic life in the stream, the U.S. Geological Survey in cooperation with the Teton Conservation District, began conducting a multi-phase study of the situation as early as 2004. As yet, no solution to the situation has been proposed.