Tillman, Richard E., Dr. Bruce Lesikar, Claude Maynard, Russell PersynProceedings: The State of the Bay Symposium IV. January 28-29, 19992010-02-152010-02-151999http://hdl.handle.net/1969.3/25827pgs. 114-123Adequate on-site waste water treatment in the Galveston Bay watershed and Brazoria County directly effects the in-flow water quality and the ultimate water quality of the estuary. There are more than 90,000 permitted on-site waste water treatment systems in Brazoria County. The heavy clay soils combined with periodic high ground water levels creates an environment for frequent failure of traditional septic systems and for alternative waste water treatment.wastewater treatmentwater qualityChapter