COMPLIANCE INFO_FILE 9 - Laserfiche WebLink

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Jo Ann Knight May 25, 2001 Page 3 of 4 DTSC Ludlum-19. However, no spikes occurred while the LLNL instrument was used. There was no obvious source for these spikes, and Terusake stated that he would ask the LLNL health physics department to investigate. Monitorin Results— Permitted Waste Storage Area Time Instrument Serial Nr. Readin Comments 1100-1130 Ludlum-19 167798 13-15 11 RAD/Hr Background 1100-1130 Ludlum-19 167798 7—250 11 RAD/Hr Inside area. Periodic spikes up to 250 11 RAD 1100-1130 PGM-7600 110-003603 0.0 RRU Background 1100-1130 PGM-7600 110-003603 0.0 RRU Inside area RRU = Relative Response Units The group moved to building 851 referred to as an "Explosives Firing Table". This is one of two active locations where experiments are conducted to study projectile impact characteristics on various materials, and to test effects of high explosives. The area is comprised of a heavily fortified manned bunker and a testing area outside. The testing area is covered with 2 — 3 inches of pea-size gravel. Experiments are photographed with an ultra high-speed camera, and the film is developed inside the bunker. Projectiles containing depleted Uranium are often used in tests, and eventually contaminate the ground to a point where the gravel surface layers must be removed and managed as hazardous waste. The entire area emitted radiation at 5-6 times normal (please define "normal")background. Monitoring for VOC was not conducted in this area due to the absence of sources. DTSC PPE consisted of boots and boot covers. The boot covers were provided by LLNL and were disposed at the building. Monitoring Results — Building851 Time Instrument Serial Nr. Reading Comments 1300-1330 Ludlum-19 167798 50 ItRAD/Hr_1 All around and inside the building The next location visited was referred to as the Building 827 complex. This area is where explosives are formulated, blended, and shaped. A manned control room remotely monitors and directs the mixing and forming of high explosives in outlying unoccupied buildings. A radiation spike exceeding 250 µRAD/Hr was noted at the doorway between the control room and the administrative area. DTSC personnel only visited remotely controlled location 827B since it was idle at the time. No VOC monitoring was done in either area due to the lack of exposure sources. DTSC PPE consisted of boots only. MonitorinQ Results — Buildin827 Control Room Time Instrument Serial Nr. Reading Comments 1330-1350 Ludlum-19 167798 10 D/Hr Background outside 1330-1350 Ludlum-19 167798 52 RAD/Hr Inside building 1330-1350 Ludlum-19 167798 250 RAD/Hr Doorway between control room and admin area