Some of the accusations were made as recently as last month. In many cases, the government noted that some of the claims were resolved administratively, and others were being formally investigated.
The new disclosures lend weight to concerns expressed by Congress that the prostitution scandal exposed a culture of misconduct within the Secret Service. Secret Service Director Mark Sullivan apologized for the incident during a hearing in May but insisted that what happened in Colombia was an isolated case.
Secret Service officials did not respond Friday to questions about the accusations.
Sen. Susan Collins (R., Maine), who has been investigating the Colombia scandal, said that while some of the allegations were "unfounded or frivolous," others appear to be legitimate and that "adds to my concern about apparent misconduct by some of the personnel of this vital law enforcement agency."
"The key question is whether these incidents indicate a larger cultural problem," Collins said Friday.
Sen. Joseph Lieberman (I., Conn.) said Friday that an investigation by the Secret Service's inspector general is continuing and the public should withhold judgment until that review is complete.
The complaints included an alleged sexual assault reported in August 2011. In the heavily censored entry, an employee was accused of pushing a woman who also worked for the agency onto a bed during a work trip. The employee "got on top of [censored] attempting to have sex," even though the woman "told [censored] 'no' several times." The entry noted that supervisors described the accused as "a conscientious and dependable employee." The incident was closed with an "administrative disposition" in February.
They also included an anonymous complaint in October 2003 that a Secret Service agent "may have been involved with a prostitution ring," noting that two telephone numbers belonging to the agent, whose name was censored and who has since retired, turned up as part of an FBI investigation into a prostitution ring. In addition, in 2005, an employee was reported to the Washington field office for being arrested on a charge of solicitation in a park. Documents do not reveal the outcome of that case.
In 2008, an on-duty uniform division officer was arrested in a D.C. prostitution sting. The officer, who was driving a marked Secret Service vehicle at the time, was placed on administrative leave, the records show. Sullivan said during the May hearing that the officer was later fired.