D.C. General Hospital has failed another inspection, this one relating to cleanliness at the city's only public acute care hospital.

Inspectors from the city's Department of Environmental Health gave the hospital's food services a mark of 70 on a July inspection - 85 is needed to pass - because of "some roaches and mice in the food storage areas, some leaking food coolers . . . and a general lack of sanitation," according to Ted Gordon, chief of the department's Institutional Hygiene Division.

In two subsequent inspections, the latest on July 26, the hospital's score rose to 85 and then to 95. The hospital moved "very expeditiously in getting the situation rectified because we said it was serious," said Gordon, who praised the efforts and cooperation of hospital Executive Director Robert Johnson in meeting the standards.

The hospital, which generally serves the poorest of the city's poor, lost its accreditation for two years before recently regaining it. The accrediting body is the Joint Commission on the Accreditation of Hospitals, the national group that provides the most generally recognized form of hospital accreditation.

Gordon said that D.C. General was deficient in several other areas involving sanitation and disease control, but was moving to make improvements in all of them.

He said the hospital had a problem keeping soiled and clean linens separated in its laundry and in storage cited in a 1975 HEW inspection of the hospital.

Hospital officials have said renovation plans for the hospital include provisions to correct those deficiencies, and Gordon said the hospital does seem to be moving in the right direction.

There was a problem, he said, of physicians, particularly residents, failing to follow procedures requiring gowns and masks to be put on prior to entering the rooms of patients with infectious diseases. That problem, he said, has been brought to the attention of the hospital administration, and is being corrected.

Gordon also said that the inspection found that some of the hospital's X-ray equipment was not properly calibrated and needed to be adjusted to make sure that patients received the proper dosages of radiation.