Bio-Analytical Laboratories, located 30 miles east of Shreveport in Doyline, Louisiana, is a small, woman-owned business specializing in whole effluent toxicity testing (also known as biomonitoring or bioassay) and microbiological analyses for municipal and industrial wastewater (sewerage) discharges. Opened in 1993, Bio-Analytical's staff has over 20 years of experience and is currently certified by the states of Louisiana, Oklahoma, Arkansas, Florida, and Texas.