Folder containing photographs; a letter from the San Diego County Water Company regarding the reinforced concrete slab on the dam face; and statement as to the authority of San Diego County to tax water impounded in the dam as personal property.

Folder containing miscellaneous photographs of various features of the Escondido Irrigation District water system and aspects of the river, etc.

Folder containing reports, clippings and correspondence regarding the enlargement and repair of the Sweetwater Reservoir structures and the Sweetwater Water Corporation's system.

Folder containing photographs of the dam failure in the flood of 1916 and its reconstruction; drawings of temporary structures, betterments, extensions; topographic drawings, tables of gage heights, etc.

Folder containing maps and an article.

Folder of reports, correspondence, clippings, and photographs regarding the effect of the canal and project on San Diego's water supply, amount of water potentially available, allocation, utilization, etc.