The second risk-limiting audit under California AB 2023 was conducted on May 6 in Monterey County. The contest was a Special all-mail election for Monterey Peninsula Water Management District Director, Division 1. Monterey uses Sequoia equipment. There were two candidates: Brenda Lewis and Thomas M. Mancini, and write-ins. 2111 ballots were cast in all. The reported totals were 1353 reported for Lewis, 742 for Mancini, and 13 write-ins. The remaining 3 ballots were recorded as undervotes and overvotes. Lewis was reported to have 64.18% of the valid votes.
Two members of the public observed the entire audit process, which took roughly 90 minutes including some preliminary explanation of the procedure. They confirmed that their interpretation of the ballots agreed with mine and the elections officials’, and they helped roll the dice used to select ballots at random. In conversations afterward, they seemed quite satisfied with the transparency of the procedure (although perhaps not utterly convinced by the mathematics that justified the details).
The audit was performed as follows. After the ballots had been tabulated officially, elections officials Bates-stamped each with a unique serial number (1962 ballots that were scanned had been stamped prior to audit day; the remaining 149 were stamped as part of the audit). It is my understanding that stamping the ballots took about 5 person-hours in all.