ML20128D496
| ML20128D496 | |
| Person / Time | |
|---|---|
| Site: | Reed College |
| Issue date: | 03/31/1992 |
| From: | Terdal P REED, J.G. |
| To: | Qualls P NRC |
| Shared Package | |
| ML20126M891 | List: |
| References | |
| FOIA-92-35 NUDOCS 9212070292 | |
| Download: ML20128D496 (1) | |
Text
'
2 t
J
-y 7E8D.C0LLEOE Tortland, Oregon oms em atAC1 M UCfLtTF March 31,1992 Reactorinsmotor NRC' Phil Qualls, donos, Sen or Project danager, NRC To:
Marvin Men Fromi PaulTordal, Assoolate Director, Reed Reactor Foollity Me:
Amendments to Rooovery Plan Attached is a completed copy of the Amendments to the Recovery Plan. Aside from correctlng some typographical errors, the only major change is in the section on setting the alarm and fallsafe setpoints for the CAM and APM.
As you had pointed out, the flow rate of 6.5 CFM was not really 7.8x10e l/ min, m
but 1.8x10s l/ min, or 3000 ml/s. This, of course, radoally changes the alarm m
and f alisafe setpoints, such that they are now even lower than befort. Those equations were, of course, written very conservatively.- Although the CAM and i
APM sample in the Reactor Faolitty, or in the stack were materials leave the reactor, the action levels in the Emergency Plan really refer to the Site -
Boundary,250 feet away. This means that we could take disperelon into the actionlevels are account if we chose to as we did with the GSM. Also' released is based on the assumptfon that the amount of material 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> With the GSM,we assumed that after an hour of release the foollity would be shut down, limiting the amount of additional material released.
We propose to alleviate this problem by assuming that any release will be a 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> release averaged over 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, as we have done with the GSM. Since the reactor will be shutdown 11 the Fallsafe condition la released, this is not unreasonable. This is still quite conservative, since it neglects disperelon.
If you have any additional comments or questions, please contact either Michael Pollock or myself at (503)777 7222.
Sincerely, f
Paul Tordal Associate D! rector, Reed Reactor Facility
.BB i
j i.
g eo g a 920505 o n 2-35_
_