AMS is supporting the city of Carmel-by-the-Sea in investigating sources of contamination of the Carmel Bay Area of Special Biological Significance (ASBS). AMS has employed microbial source tracking techniques utilizing markers for human, canine, and avian sources, as well as sampling of dissolved and total trace metals in storm drains and sub-watersheds that drain to the ASBS to identify and mitigate upland sources of contamination.