Short answers, pulled from the story.
The Lunar Receiving Laboratory (LRL) was a facility at NASA's Lyndon B. Johnson Space Center, housed in Building 37. It was constructed to quarantine astronauts and materials returned from the Moon during the Apollo program, guarding against the risk of back-contamination of Earth.
Crews from Apollo 11, Apollo 12, and Apollo 14 were quarantined at the Lunar Receiving Laboratory after recovery. Beginning with Apollo 15, the quarantine requirement was dropped entirely for subsequent missions.
Between 1969 and 1972, six Apollo missions returned 382 kilograms (842 pounds) of lunar material, comprising 2,200 individual samples from six exploration sites. These included rocks, core samples, pebbles, sand, and dust.
After quarantine protocols were lifted, the LRL shifted to study, distribution, and safe storage of lunar samples. In 1979 a dedicated Lunar Sample Laboratory Facility was built as the permanent repository, and in 1976 some samples were also moved to Brooks Air Force Base in San Antonio, Texas, for second-site storage.
Three automated Soviet spacecraft returned small lunar samples to Earth: Luna 16 in 1970, Luna 20 in 1972, and Luna 24 in 1976. Together they brought back a total of 300 grams, roughly three-quarters of a pound.
In September 2019, NASA announced the Lunar Receiving Laboratory had not been used for two years and would be demolished. Before demolition, the building had been repurposed for NASA's Life Sciences division, hosting biomedical and environment labs focused on human adaptation to microgravity.