A measure to expand public disclosure of commercial, industrial and other institutional water uses in California fell far short of passage in the state Senate on Friday.

Assembly Bill 1520, which would have removed exemptions to the Public Records Act for business customers of local water agencies, garnered only 15 votes on the floor, well below the 21 it needed to advance. The proposal, by Assemblyman Mark Stone, D-Scotts Valley, was opposed by a long list of agricultural and business groups, including winemakers, car washes and restaurants.