Viral contaminants, and deadly cryptosporidium. Excess chlorination to attempt to eliminate these contaminants lead to the concomitant buildup of chlorination byproducts posing a human cancer risk. The presence of Caffeine serves as an indicator of inadequate sewage treatment. Also of concern are oral contraceptive hormones and antibiotics along with other pharmaceutical residues from raw sewage. Lake Whatcom watershed is already compromised.
Studies show deterioration and degradation.
Fish from the Lake are contaminated with aroclors and can not be safely eaten by children and pregnant women . Extract by Tim Paxton.