DESCRIPTION:
11/2/04 at 1735 the Plant Shift Superintendent (PSS) office was notified of a tanker truck located outside the east corner of the X-700 has uranium results at 322.0 +/- 64.4 PPM and 4.87 +/- 0.49 U-235 assay. No NCSA applies to this operation. This is reportable per NRCB 91-01 as a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> event.
SAFETY SIGNIFICANCE:
Very Low Safety Significance. The amount and concentration of uranium involved cannot possibly achieve a critical configuration.
POTENTIAL CRITICALITY:
There are no criticality pathways involved due to the limited mass and concentration of material.
CONTROLLED PARAMETERS:
No NCSA was established for this operation, so there are no control parameters. However, the limited mass and concentration of the solution does not warrant double contingency control because a criticality is not credible.
NUCLEAR CRITICALITY SAFETY CONTROLS:
No NCSA controls were established for this operation.
CORRECTIVE ACTIONS:
Upon discovery the PSS office directed entering an anomalous condition. Additional samples are being taken to confirm results. Contents of tanker are to be removed.