ML18044A967

Offsite Airborne Iodine Monitoring Under Accident Conditions.

ML18044A967
Person / Time
Site:	Palisades
Issue date:	04/30/1980
From:	CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML18044A959	List: ML18044A958 ML18044A960 ML18044A961 ML18044A962 ML18044A963 ML18044A964 ML18044A965 ML18044A966 ML18044A967
References
EI8-9, NUDOCS 8006040330
Download: ML18044A967 (5)

Text

• PALISADES NUCLEAR. PLANT llIERGENCY IMPLEMENTATION PROCEDURE PROC NO EIB-9 PAGE 1

• OF 5 REVISION o consumers Power TITLE i OFF SITE AIRBORNE IODINE MONITORING UNDER ACCIDENT CONDITIONS DATE 4/30/80. REVIEWED BY PRC -DATE 4/28/80 QA-05 APPROVED tNERAL MANAGE lt°i DATE 1. 0. PURPOSE Toprovide a method to determine airborne iodine concentrations off site under accident conditions.

2.0 REFERENCES

2.1 NRC submittal for Palisades Plant, "Requirements Resulting from Review of Three Mile*Island 2 Accident:

Actions Taken in Response to", dated December 27, 1979, Section 2.l.8.b(2).

3.0 3.1 3.1.1 3.1. 2 3.1.3 3.1.4. 3.1.S *.4.0 . 4.1 4.2 s.o* 5.1 5.1.l PREREQUISITES Special Equipment Special equipment is located in a Company van reserved for use in. environmental sampling, etc .. The van is located in the plant: parking. lot the Training Center. . -Hfgh Volume Air Sampler -battery operated high volume air sam:pler,-Radeco model H-809C or equivalent, AC operated sampler (to be operated via portable generator);

or equivalent. . Two-inch .. particurate

.. filter and cartridge holder .. Airborne iodine cartridge (silver zeolite, silver gel, etc.). . . '* . . . . . Rate.":leter wi:th Eber.line 210 pancake probe or equivalent,.

PRECAUTIONS.

AND Lil!ITATIONS

.. Sampling locations and. frequencies will be determined by the Site .Emergency**

Direc.t.or depending on environmental conditions and population distriqud.ons.

Suggested locations are. indicated on Figµre s*ampling

• may take place* in: highly contaminated areas.:..

• clothing and respirators may* be needed under these conditions.

• PROCEDURE . Sampling Disassemble sample head. Clearly mark an arrow on cartridge in direction of air soofln 4.o.

I I i ! I l ! I. i l. : I I I I l ' .@l *... PALISADES NUCLEAR PLANT EMERGENCY IMPLEMENTATION PROCEDURE OFF SITE AIRBORNE Ioo;rnE MONITORING UNDER ACCIDENT CONDITIONS PROC tlO EI8-9 . PAGE 2 OF s REVISlON o consumers Power DATE 4/29/80 . 5.1.3 5.1.5 5.1.6 5.1. 7 5.2 5.2.P . *.* -2 .* 2 . . 5.2. 3 5.2.4 Place cartridge in sample head with arrow in directio.n of air flow through the cartri_dge and reassemble sample head. Place particulate pre-filter place to prevent buildup of radioactive particulates on cartridge.

Screw on retaining and attach sample head .to air sampler . . Turn on sampler and adjust air flow to 1. 0-2. 0 cfm. Note initial air flow reading and time.when sample collection started. A ten (10) minute sample should be taken. At the end of 10-minute sample period, note airflow reading and time and turn off sampler. Remove cartridge frc.m sample head and place cartridge in polyethylene Record: -a. Date. . b. Starting and ending tiu.e . **Initial and final air flow. d. Location and include with cartridge.

Analysis Take carfridge to* low background ar.ea or use lead bricks to shield if background radiation levels exceed 300 c?m

• Place:-probe: in contact with side away from arrow on cartridge..

Note reading on rate meter after meter has-stabilized*.: . If range of meter is exceeded, repeat air sample (section 5.1) but decrease sample time. to aEpro,..."i.mately one-half.

af.. previous.

sample time.**

concentrations using the following equation:.

C =. (G. 7E-ll) (Rs-Rb) ts 1/2 (F1+Fz) Where: C = Concentration (uCi/cm 3) Rs = sample count rate (cpm) ., . = background count rate (cpm) . Fi = initial flow rate (cfm) F2 = final flow rate (cfm) ts = elapsed sample time (minutes)

• ,,.,,I Ii . *;-* PALISADES NUCLEAR *PLANT EMERGENCY Il1PLEMENTATION

!>ROCEDURE.

consumers Power TITl[j OF.F SITE AIRBORNE IODINE MONITORING . . mn>ER ACCIDENT C01'.TDITIONS 5.2.4 (continued)

PROC NO EI8-9 PAGE 3

• OF s REVISION O DATE 4/29/80 6.7E-ll =conversion factor accounting.for units and instrument and filter

--5.2.S Record results and report to Site Emergency Director.

5. 3. Retain cartridges for gamma spectra analysis.

6.0 ACCEPTANCE

N/A 7.0 RECORDS AND ATTACffi-1ENTS

7.1 Figure

1 "Recommended Off site Sampling Location" 7.2 Data sheet for off site.airborne iodine sampling. . .. . . .. ***-: ... .. * ..... *.. . .

.. *. .:.* . .:.:-.* ,. (_;I.__----

..

(_ ,* i : ' 1*** .. --*-* -;;: .. I I ---. : .. --.. * * . O:'\..,LETEO f./1217'!/F.A'I Mf'/SUP.VH ( EI8-9 Rev. O Page 4 of 5 4/30/80

..........

__ ._..;,.,_

... ***: ....... ........... . DATA SHEE'-r FOR OF.F Sl'!':E AIRBORNE IOin'l1E SAMPLING 1 DATE TIME SAMPLE.* . LOCATION . SERIAL COUNT_RATE MEtER . ; SAMPLE TillE (MIN) **-'lNlTIAL FLOW HATE ._----1----4--------1---

.. .J9J..l12 o*'*'.

I l ; .. I I I i .. _... . .... ' .... -*:: .:. ! FINAL BACKGROUND SAMPLE fLOW COUNT RATE COUNT RATE RATE (CPM) (CPM) (CFML -* CALCULATED BY REVIEWED HEALTH PH¥SiCIST j .. ,,..-, EI8,-9 "'_. . \

0. AIRBORNE IODINE CONC. (Ci/m3) Page5. 4/30/80 -e .,,