Raymond A. Soltero

• An investigation of the cause and effect of eutrophication in Long Lake, Washington
• Continued investigation of eutrophication in Long Lake, Washington
• Further investigation as to the cause and effect of eutrophication in Long Lake, Washington
• Response of the Spokane River periphyton community to primary sewage effluent and continued investigation of Long Lake
• The effect of continuous advanced wastewater treatment by the city of Spokane on the trophic status of Long Lake, WA
• The effect of continuous advanced wastewater treatment by the city of Spokane on the trophic status of Long Lake, WA. during 1979
• The effect of continuous advanced wastewater treatment by the city of Spokane on the trophic status of Long Lake, WA. during 1980