A federal drain (The San Luis Drain) is currently contemplated in the San Joaquin Valley for the purpose of collecting and transporting highly saline agricultural drainage waters to a disposal point in the Sacramento - San Joaquin Delta near the City of Antioch. The effect of the drain on the quality of the Bay and Delta waters was studied. The future fifty year period, 1970-2020, was examined. The scope of this part of the Appendix is limited to description of effects related to nutrient enrichment of the San Francisco Bay-Delta system including effects on fishery, recreation and shoreline real estate values. Material is presented describing laboratory and field studies, literature surveys on fishery resources and water quality requirements, Bay-Delta water quality and biota, and predictive models leading to economic evaluations.