Supervisors facing years of scrutiny over their handling of a discretionary fund have failed to adequately reform a spending practice involving hundreds of thousands of taxpayer dollars each year, according to a grand jury report released early last week.

The report, made public last Monday after a three-month investigation by the Marin County Civil Grand Jury, called for sweeping structural changes to the so-called Community Service Fund by the 2013-14 fiscal year.

In interviews with…