Responses of phytoplankton productivity in the Red River to unbleached pulp and paper mill wastewaters were monitored using in situ ^14C incubation. Preoperational studies, conducted prior to the discharge of mill wastewaters varied seasonally, but revealed similar productivity trends when compared with postoperational studies, conducted after mill discharges began entering the Red River. Carbon assimilation rates measured downstream of mill discharge were generally greater than upstream levels in both preoperational and postoperational studies. Selected physical, chemical, and biological parameters varied seasonally, but showed similar upstream-downstream values and preoperational-postoperational values. Total Organic Carbon (TOC), Dissolved Organic Carbon (DOC), and Biochemical Oxygen Demand (BOD_5) were positively correlated with postoperational productivity rates. Apparent color was negatively correlated with productivity rates.

Federal guidelines required prime sponsors under the Comprehensive Employment and Training Act, or CETA, to serve the "significant segments" of the eligible population. This study analyzes whether prime sponsors in Texas and Louisiana correctly identified and served those segments. This study finds that eligible ethnic groups were properly identified and were served equitably; age and gender distinctions, however, were inadequately observed in the providing of services.