ML19249D351
| ML19249D351 | |
| Person / Time | |
|---|---|
| Site: | Crane  |
| Issue date: | 05/25/1979 |
| From: | Chilk S NRC OFFICE OF THE SECRETARY (SECY) |
| To: | |
| Shared Package | |
| ML19249D299 | List: |
| References | |
| NUDOCS 7909240324 | |
| Download: ML19249D351 (4) | |
Text
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.q i s 9.'h @:<[p STATEMENT g,
3 The staff is directed to prepare an Environmental A.ssessment regarding proposals to decontaminate and dispose of radioactively contaminated waste s
water 'from the Three Mil ~e Island facility.
The Assessment will be divided into several portions.
The first portion of the Assesszment will deal with the proposed decontamination of intermediate-level waste water using the EPICOR-II system at TMI. The Assessment should include discussion of potential t-isks to the public health and safety, including occupational ex;:csures and the risk of ac:idental releases, and a discussion of alternatives to the EPICOR-II sys15em.
pending completion of this portion of the Assessment and opportunity for public coment, the staff should direct the licensee not to operate the EPICOR-II system. Testing of the EPICOR-II system with=mt using contaminated waste may pro'ceed.
Except for discharge of waste wate-deconta=inated by the existing EPICOR-I decontamination systemE and discharge of industrial waste waterE as consistent with the facility operating licenses, no discharge of waste water shall be permitted until completion of a se=:end portion of the Assessment dealing with any such proposed discharges.
T' dis portion shall in-clude a discussion of alternatives to discharge into the Susquehanna River.
The decontamination and disposal of high-level waste water will be the s:sfect of a subsequent Assesstent.
However, the Director of the Office of Nuclear '
Reactor Regulation may authorize measures deemed necessary to cope with an j
j I/
Prir.arily pre-accident waste water from Unit I which has been partially contaminated by water from Unit 2, with an activity level of less than 1 microcurie per cc. prior to treatment anc with an activity level approxi-ma:ely 10-7 microcuries per ec. in the dis:narse ca.nal after treat:nen:.
~
6, Waste water slightly contaminated (approximately 1C-7 c.icrocuries per cc. )
cue to leakage from secondary plant service support systems.
The disenarge of this industrial waste water is necessary to taintain TMI Unit 2 'n a safe condition.
"""M we:9 001 177
.=-
2 ernergency.
If the Director of the Office of Nuclear Rea=t.o:- Regulation be-lieves the public health and safety requires the use of tile EPICOR-II system p:-ior to completion of the first portion of the Assessment, he shall so report to the Comission and the Comission may then permit use of the system The staff should inform the Co:: mission promptly regarding its estimated schedule for completing each portion of the Assessment and f6r cc=pleting the entire Assessment.
For the Comission A
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SAMUEL J. EHILK Secretary of thd Comission Dated at Washington, DC, thisZ5 day of % 7 1979.
L O
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N s
TMI EFFLUENT WATER RELEASE FOR THE PERIODS 3/28/79-5/11/79 vs 3/28/78-5/11/79 1 31 3
TOTAL VOLUME TOTAL 7
H RELEASED ACTIVITY ACTIVITY ACTIVITY YEAR (GALS)
'(Ci)
(Ci)
(Ci) 1978 13 Billion 16.036
- MDA 15.878 1979 31 Billion 12.738 0.239 12.433
- Minimum Detectable Activity
i-COMPARIS0NS OF COSES TO MAXIMUM INDIVIOUAL DRINKING TREATED SUSQUEHANNA RIVER WATER DOWNSTREAM OF TMI*
Columbia i
Intake Actual Upstream Control Environmental Dose from Actual Calculated From Sample
" Measurements in Release Data Pathway Downstream Dose The Environment Downstream Dose 45 Day and Critical 3/28 to 5/11 3/28 to 5/11 3/28 to 5/11 Natural Nuclide Organ 1979 1978 1979 1979
Background
mrem mrem mrem mrem o0?;29,33, Tayroid
<0.04
<0.05
<0.04 0.011 none 0.002 0.002 0.002 3 x,0-5
.0004 ogag93n ge Ea Thyroid
< 0.02 4 0.02 40.02 0.004 None 131; 5 x 10-5 5 x 10-5 4 x 10 4 x 10-5
.00001
-5 E
kl e
Boating,131; Whole 4 7 x 10 42 x 10 1 x 10 3 x 10-7 None
-7
-6
-6 Body l
- Allowable Technical Specification dose for the period 3/28 to 5/11/79 is 0.6 mrem for all pathways o
and nuclides.
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