[Rolls of hydrograph charts], 1978-1980

The majority of the files in this subseries relate to the San Luis Valley Ad Hoc Committee and its study of artificial recharge. Materials are arranged alphabetically by folder title, with committee files first, and files with well recorder charts (having roman numerals with two exceptions) at the end. Rolls of recorder charts are housed separately in a document box. Besides charts, material types include correspondence, memoranda, maps, data, proposals, and reports.