Evaluation of methods to minimize contamination hazards to wildlife using agricultural evaporation ponds in the San Joaquin Valley, California : final report efficacyevappond00gop Year: 1989 • What changes are expected to occur in the mineralogy and chemistry of pond wasters subjected to cychc evaporative salinization (drying) and dilution-dissolution (wetting) of evaporites? • Which trace elements might co-precipitate with evaporites? Will salt deposits containing toxic trace elements need to be ultimately disposed in Class I hazardous dump sites? • What pond design and management practices


Evaluation of methods to minimize contamination hazards to wildlife using agricultural evaporation ponds in the San Joaquin Valley, California : final report efficacyevappond00gop Year: 1989 • What changes are expected to occur in the mineralogy and chemistry of pond wasters subjected to cychc evaporative salinization (drying) and dilution-dissolution (wetting) of evaporites? • Which trace elements might co-precipitate with evaporites? Will salt deposits containing toxic trace elements need to be ultimately disposed in Class I hazardous dump sites? • What pond design and management practices will best sustain evaporation rates and precipitate salts? Scope of Report This report addresses physical and chemical characteristics and factors in evaporation ponds, with emphasis on seasonal pond water chemistry, water evaporation and salt accumula- tion, but does not address biological aspects. The previous interim report (Tanji and Grismer, 1989) contained a literature review and synthesis on these topics. Oancral study ATM Boundary Prlnd^l Slutfy Ar«a Boundary _ — — Subaraa Boundarlaa -M^^ StraATTW and Canala AtBSFlELD Sourca: S«n Joaquin V»ll»y Drainage Program Figure Areas of Shallow Groundwater page


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