ML20076K943
| ML20076K943 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 05/24/1983 |
| From: | Briden D, Jonathan Evans, Murray T TOLEDO EDISON CO. |
| To: | |
| Shared Package | |
| ML20076K935 | List: |
| References | |
| PROC-830524-01, NUDOCS 8307180306 | |
| Download: ML20076K943 (33) | |
Text
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's THE TOLEDO EDISON COMPANY DAVIS-BESSE NUCLEAR POWER STATION
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EMERGENCY PLAN SUPPORTING PROCEDURES REVISION INDEX PAGE REVISION PROCEDURES REVISION TEMPORARY MODIFICATIONS 1
HP 1604.02 0
AD 1827.01 3
AD 1827.02 9
3 AD 1827.03 2
AD 1827.04 2
I AD 1827.05 2
AD 1827.06 2
AD 1827.07 3
AD 1827.08 2
AD 1827.09 2
AD 1827.10 13
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AD 1827.11 4
AD 1827.12 9
AD 1827.13 6
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AD 1827.15 5
AD 1827.16 2
AD 1827.17 4
AD 1850.04 5
j AD 1850.05 6
AD 1850.06 0
i ADMINISTRATIVE MEMORANDUMS REVISION P
No. 37 ECS Pager and Telephone Numbers 30 No. 38 First Aid Team 12 No. 39 Fire Brigade 15 No. 41 Emergency Duty Officer (EDO) 27 No. 42 Radiation Monitoring Teams (RMT) 19
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.4 Health Physics Procedure EP 1602.01
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,,j Record of Approval and C.anges i3 Prepared By Ibn Scott & John Tapley -
11/28/73
-.< y" Date
.f Subnitted By D. W. Briden 5/17/74 Sectim Head Date
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+ - - *-Aad By Jack Evans 5/17/74 SRB chai=="
Date M Approved N/A Quality A*s -+ + Director Date A;: proved By Jack Evans
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Stat:.cn super:.ntere.ent Date Pavisicn SRB M
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Recamer42tien.Cate Approved Date App 2. ural Date 12 S.u. G#. A 2./s /S3 N/A g w_
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-1.
PURPOSE 1.1 This procedure describes the monitoring and recording of external personnel radiation exposure and the monitoring for personnel contamination.
2.
REFERr.NCES 2.1 Health Physics Procedures - Guides and Limits for Radiation Exposure, HP 1601.01.
2.2 Title l'O.CFR Part 20 (Standards for Protection Against Radiation).
2.3 FSAR, Section 12.3 (Health Physics).
(TS) 2.4 Technical Specifications Section 6.10.2 (Station Operat ing Records).
2.5 American National Standards INSI N13.6 - 1966 (R1972), Practice for Occupational Radiation Exposure Records System.
2.6 AD 1808.08 Access Control 2.7 HP 1601.03 Radiation Exposure Permits 2.8 NRC Regulatory Guide 8-14, Personnel Neutron Dosimeters 3.
EQUIPMENT REQUIRED 3.1 Thermoluminescent dosimeters (TLD's) 3.2 Self-reading pocket dosimeters 3.3 Dosimeter chargers 3.4 Neutron sensitive dosimeters 3.5 Health physics personnel contamination monitoring equip-ment 3.5.1 Portal monitors 3.5.2 Hand and foot counters 3.5.3 Hand-held friskers 4.
DATA SHEETS REQUIRED 4.1 NRC Form 4 (Attachment 1) e iui i __....
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, i s-HP 1602.01.10 2
4.2.NRC Form 5 (Attachment 2) 4.3 Radiation Exposure Record, ED 6458 (Attachment 3) 4.4 Dosimeter Record, ED 6547 (Attachment 4) 4.5 Visitors TLD Log (Attachment 5) 4.6 Temporary TLD Exposure Record (Attachment 6) 4.7 Extremity Badge Log (Attachment 7) i 4.8 Toledo Edison Temporary TLD Issue (Attachment 8) 4.9 Current Radiation Exposure Record (Attachment 9) 4.10 Dosimeter Record for Neutron Calculation (Attachment 10) 5.
PRECAUTIONS AND SAFETY 5.1 TLD's and self-reading dosimeters must be protected against loss or damage. Report any loss or damage to the Chemistry and Health Physics Section immediately. Badges and dosimeters must not be removed from the site.
5.2 Care should be exercised not to jar, or drop pocket dosimeters as false readings may be obtained. Dropping a dosimeter discharges the electroscope which may give an off scale reading indicative of a high exposure dose. Return a pocket dosimeter to the Health Physics Monitor Room immediately when an offscale reading is observed. An estimate of the dose received will be made and the dosimeter rezerced.
6.
PROCEDURE 6.1 Thermoluminescent Dosimeter Badges (for beta and gamma dosimetry)
NOTE:
For neutron dosimetry, see Section 6.1.5.
6.1.1 Personnel assigned to the station and any person likely to receive a dose in any calendar quarter in excess of 25 percent of the quarterly dose limit for whole body, extremities, or skin of whole body shall be given a " permanent" or a
" temporary" TLD Badge.
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~1.
Any individual likely to receive an exposure to his extremities in excess of 5 times his whole body exposure, his extremities shall be monitored
'if a significant dose is expected.
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3 HP 1602.01.12 2.
Special attention must be given to nonuniform radiation fields so that the region of body (head, chest, or gonadal area) is monitored, whichever receives the highest exposure.
3.
Personnel with " permanent" TLD badges will pick up their badges at the gate office upon entering the station and return them to the gate office when leaving the station. Badges are supplied by the Chemistry and Health Physics Section.
12 4.
Personnel with " temporary" TLD badges normally pick up their badges at the PPF and return them to the PPF exit whenever leaving the Station.
Temporary TLD's are issued by Chemistry and Health Physics personnel at the beginning of each month or whenever needed.
NOTE:
Visitors will turn their " temporary" TLD's in at the exit to RACA.
NOTE:
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A self-reading dosimeter or an alternate means of estimating personnel exposure approved by the Chemist & Health Physicist or his designee may be substituted for a TLD.
5.
For personnel issued permanent TLD's, the following must be done by Chemistry & Health Physics personnel.
(1) An NRC Form 4 (Attachment 1) must be com-pleted as instructed on the form.
(2) Past radiation exposure records must be obtained before the quarterly whole body exposure is permitted to exceed 1.25 Rem.
(3) A radiation exposure record must be kept (NRC Form 5, Attachment 2).
This record shall be up/sted quarterly from monthly TLD readouts. This record must be pre-served indefinitely and the data reported annually within the first calendar quarter to the NRC as required in 10 CFR 20.401 and 20.407.
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4 HP 1602.01.9 (4) Upon termination of employment or work, or in the event of overexposure, the NRC and the individual must be furnished a report of personnel exposure as required in 10 CFR 20.405, 20.408, and 20.409. Upon request, the individual must be furnished a report of his exposure.
6.1.2 Other persons required to enter RACA shall be issued a
" visitor" or " temporary" TLD badge. For these persons, the following applies:
1 1.
Continuing visitors, contractors, and other utility personnel not assigned to DBNPS who will i
be entering known radiation areas shall be issued a " temporary" TLD badge by the Chemistry and Health Physics Section. " Temporary" TLD badges are to be read monthly.
2.
" Temporary" TLD's shall be issued the first time an individual enters RACA for the current calendar month. Attachment Nos. 6 and 8, " Temporary TLD 9
Issue Log"and " Toledo Ediron Temporary TLD Issue Report", shall be filled out for each Temporary TLD as it is issued. The Temporary TLD will be removed from use at the end of each month. These individuals requiring a Temporary TLD shall have Chemistry and Health Physics re-issue them a new Temporary TLD each month.
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3.
Attachment No. 8 shall contain all required information and is to be updated from monthly TLD readouts with each individual's monthly exposure recorded. This record must be
-preserved indefinitely and the data reported annually within the first calendar quarter to the NRC as required in 10 CFR 20.401 and 20.407.
4.
Upon termination of employment or work, or in the event of overaxposure, the NRC and the individual must be furnished a report of per-sonnel exposure as required in 10 CFR 20.405, 20.408, and 20.409. Upon request, the individual.
must be furnished a report of his exposure.
5.
Visitors-who are at DBNPS for only a few days and who will be entering RACA, shall be issued a l
" visitor's" TLD. The visitor's TLD will be f
issued at the entrance to RACA the first tLae the visitor enters RACA and returned to the RACA entrance when exiting.
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5 HP 1602.01.11 NOTE:
Persons wearing a " VISITOR" TLD badge and have completed RCT may enter RACA unescorted. Those 11 persons who do not have current RCT training must be escorted by an individual who has current training. This does not remove necessity for escorts for security reasons.
6.
When " visitor" TLD is issued, the visitor shall supply the information requested in Attachment 5, Visitor's TLD Log. The " visitor" TLD badge may i
be reused by 'another visitor unless.a radiation exposure is known or suspected. If an exposure is suspected,.the " visitor's" badge is to be retained for readout (ie., a net exposure on self-reading dosimeter in excess of 20 MREM).
7.
The visitor's TLD's shall be read out monthly and the dose recorded accor. ding to TLD badge number only.
CAUTION:
Individuals who have " visitor" TLD badges should receive essentially no dose; the Chemistry and Health Physics Section should be notified when visitors will be allowed to enter radiation areas to determine whether a " permanent" or
" temporary" TLD badge should be issued. Under no circumstances should " visitor". badged individuals be permitted to receive a dose in any calendar quarter in excess of 25% of the quarterly dose limit for the whole body.
8.
Individuals using Visitor TLD's being being escorted are not required to sign in on an REP.
The escort is responsible to verbally inform his visitor (s) of the conditions and health physics requirements in the area. The dosimeter readings and times are entered on the Visitor Badge Record Sheet (Attachment 5).
6.1.3 Personnel shall wear the TLD badge on the front of the body between the knee and head so that an accurate measurement of whole body dose can be made.
NOTE:
11 The whole body includes the area of the body from the top of the head to the' knees. The TLD should be worn J
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6 HP 1602.01.11 in that region o'f the whole body which is likely to receive the highest dose.
A.
When worn in an area of contamination or high contamination, the TLD badge should be worn in the pocket of the coveralls so that it is protected from contamination.
NOTE:
If the work area has higher radiation levels which require checking the dosimeter frequently, place dosimetry in a plastic bag.
B.
TLD badges must be secured so that there is no chance for loss.
6.1.4 Extremity TLD's shall be used when specified as a requirement on a Radiation Exposure Permit (REP). They 11 should.be worn on the hand or foot which is likely to receive the highest radiation dose. They should be worn so that the TLD is not shielded by the hand or :
foot.
NOTE:
I If extremity monitoring is to be provided then the Extremity Monitoring Log Sheet (Attachment 7) must be filled out and placed in the Temporary Badge Issue book for that month.
6.1.5 Neutron Dosimetry 11 1.
Neutron whole body doses should be limited to 300 mrems per quarter.
2.
There are three methods which can be used to assign personnel exposures from neutrons:
(1) Multiply the self-reading dosimeter reading times five (5); or (2) Multiply the time exposed to neutrons times the neutron dose rate determined from the measurement of a Neutron Rem-Counter; or (3) Use the integrated neutron dose ~ determined l
with the RASCAL Neutron Rem-Counter.
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HP 1602.01.12 3.
When working in areas where there is a potential for neutron exposures, each individual is to sign in on Attachment 10 (Dosimeter Record for Neutron Calculation). Send the completed Attach-ment 10 to the Health Physics Supervisor to ensure that the individual's neutron exposure is added to his exposure record.
6.2 Self-Reading Dosimeters 6.2.1 The self-reading dosimeter is used as a dayby-day indication of personnel gamma exposure so that expo-sure guide values given in HP 1601.01 will not be inadvertently exceeded. In the event that a TLD badge is lost or damaged, the dosimeter readings are used to replace the lost TLD badge official records.
6.2.2 All personnel entering RACA shall wear a self-reading dosimeter. Personnel are to wear the dosimeter in close proximity to the TLD badge.
6.2.3 Persons requiring access to the Radiation Access Control Area (RACA) shall be issued a self-reading 12 pocket dosimeter for which they shall be responsible.
l 6.2.4 Before entering the RACA, personnel may "zero" their own dosimeter by inserting it in the dosimeter charger and adjusted the control until the hairline is on zero.
NOTE:
After the dosimeter is removed from the charger, the zero position should be checked because the hairline may shift its position when the dosimeter is removed from the charger. If this happens, the dosimeter should be replaced in the charger and adjusted below zero to compensate for the shift.
6.2.5 At the end of each work day when the RACA was entered,
" permanent and temporary" TLD badge wearers shall read their dosimeter and record the radiation dose received on their Radiation Exposure Record, ED 6458 (Attachment 3).
1.
The Radiation Exposure Record is signed the first i
time an entry is made for each month.
2.
An individual's daily dose is recorded in the
" Daily" column next to the number correspond-ing to the day of the month.
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HP 1602.01.12 3.
The " Daily" dose is added to the accumulated whole-body exposure and recorded in the " Quarter" column.
4.
Radiation Exposure Record cards are administered by the C&HP Section. When the monthly TLD results are received, the cards will be corrected.
(1) When the dose for the " running total calendar quarter" from TLD results exceeds 300 mrem, the current Radiation Exposure Record card shall be corrected to agree with the TLD record.
(2) Corrected entries are made on the card by Chemistry and Health Physics personnel who will initial and date any corrections.
12 5.
The C&HP Section will provide assistance in zeroing dosimeters, readings, and recording exposures.
6.2.6 Four models of the self-reading dosimeter are used.
-Selected according to REP requirements.
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0-200 or 0-500 mR range - for normal use 1
2.
0-IR range - dosimeter used for entering high radiation areas 3.
0-5R range - dosimeter used when the quarterly dose is approached for a single exposure 4.
0-100R range - dosimeter for lifesaving NOTE:
The 0-IR and higher dosimeters are used only on a planned basis.
6.2.7 Personnel zero their own dosimeters before entering the RACA when the reading is greater than 20% (40 mR for 0-200 mR, and 100 mR for 0-500) of fu11' scale. On the Dosimeter Record ED 6547 (Attachment 4), enter the information required. The issuance and use of the Dosimeter Record is covered in HP 1601.03, Radiation-Exposure Permits.
6.2.8 Personnel will periodically check the reading (expo--
sure) ion their dosimeters during the course of a day.
l When working in a high radiation area, personnel shall L
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.c HP 1602.01.10 9
check their dosimeter readings (exposures) before entering, during occupancy, and upon leaving the area.
10 6.2.9 If at any time during the course of a day, a 0200 or 0-500 mR range dosimeter exceeds 80% of the full scale reading (160 mR for 0-200 mR range, or 400 mR for 0-500 mR range), the wearer shall return to the Health Physics Monitor Room to have C&HP personnel record the dose, check his quarterly accumulated dose, and rezero the dosimeter before re-entering the RACA.
6.2.10 If at any time a personnel dosimeter is found to be off scale, a read-out of the individual's TLD Badge is required before an individual is allowed to return to RACA, unless the Chemist & HP or his designee determines that the off scale reading is not due to over exposur'e.
6.2.11 Personnel who are working in contaminated areas shall not read dosimeters by holding with contaminated gloves. Gloves shall be removed carefully or clean gloves placed on over contaminated gloves before handling personnel dosimeter. A second individual who is known to have " clean" non-contaminated gloves may read other persons' dosimeters in order to determine exposures.
6.2.12 Every effort should be made to prevent contamination of personal dosimeters. When it is known or suspected that they have become contaminated, they shall-be delivered to C&HP Section for surveying and de-con-tamination if necessary.
6.2.13 Whenever personal dosimeters are lost or damaged, the individual shall immediately leave the RACA and notify C&HP Section. A reasonable estimate of the dose received by the lost or damaged dosimeters will be made for record purpose.
6.3 Friskers 10 6.3.1 The NRC and INPO guideline for personnel contamination 2
is 5000 dpm/100 cm. A frisker is the only type of personnel monitor capable of detecting contamination at 5000 dpm (or 500 cpm as read from the rate meter).
Anyone leaving a Contamination or High Contamination Area must frisk as described in this section before leaving RACA.
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i HP 1602.01.12 10 6.3.2 Count-rate meters (friskers) will be installed in locations in the station where monitoring for per-sonnel contamination is deemed necessary. The moni-tors will be set up and the alarm point set by the Chemistry and Health Physics Section. The alarm setting and range selection switch must not be changed by personnel using the monitor. Personnel other than Chemistry & HP should use only the volume control and the reset button.
6.3.3 Approach to probe (detector) of the unit with the hands, but don't pick it up until the hands are moved slowly near the probe (as close to the probe as possible without touching it).
If the alarm sounds, de-contaminate the hands before touching the probe.
i 6.3.4 Once hands are shown to be free from contamination, pick up the probe.
6.3.5 Survey the rest of the body by passing the probe slowly over the body. Make an thorough survey of the bottoms of shoes, elbows, knees, face, and rear.
.A.
If no increase in the clicking rate is heard, no significant contamination is present.
3 B.
If clicking rate increases, survey that area even more carefully. If the alarm does not sound, no significant contamination is present.
C.
If the alarm sounds, contamination is present and must be removed. Put on the clean gloves or shoe covers provided if the hands or feet 12 are contaminated. Reset the alarm.. Go to the H.P. Monitor Area'until clean. Seek assistance from Chemistry & HP if necessary. Restrict movements until the source of contamination is determined and cleaned up.
NOTE:
Persons must not leave the RACA with contamination on their bodies, clothing, or equipment.
6.4 Hand and Foot Monitor 6.4.1 A beta-gamma hand and foot monitor, located at the Radiation Access Control Area at Door 415, will provide a means of detecting the presence and general location of contamination on hands and shoes. After removing protective clothing and washing hands, the l
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. o 11 HP 1602.01.12 hand and foot monitor shall be used before leaving the Radiation Access Control Area at Door 415.
6.4.2 To use the hand and foot monitor, stand on t' e front a
apron and place hands in the slots provided.
6.4.3 Wait for the time period indicated on the monitor. If there is no alarm response, the hands and shoe bottoms may be considered free of contamination.
t 6.4.4 If there is an alarm response, observe the various meters to determine which hand or foot has the high count rate. Proceed as in Part C of Section 6.3.5.
Reset the alarm.
6.4.5' A hand-held frisker is located on the side of the unit to detect contamination on clothing and localized areas of the body. Use it as described in step 6.3.
6.5 Portal Monitor 12 6.5.1 A portal monitor (walk-thru) provides complete head to foot monitoring for beta gamma contamination detec-tion. All personnel must pass through the portal monitor as they exit the RACA through Door 415 or Door 310 and as they pass through the gate office when leaving the station.
6.5.2 Enter the portal monitor and stand for the pre-deter-mined count time. If at the end of the counting time, there has been no alarm response, no contamination is present.
6.5.3 If the alarm sounds, contamination is present. Observe the various meters to determine the gensral location of the contamination. Proceed as in Part C in Section 6.3.5.
Reset the alarm.
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12 HP 1602.01.3 ATTACIDfENT 1
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14 HP 1602.01.7 ATTACH'Y..NT 2
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CURRENT OCCUPATIONAL EXTERNAL RADIATION EXPCSURE s
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15 HP 1602.01.7 ATTACIDENT 2 The eseesamen ane setenseeme et the fosat or e e*eer and togiese essas 9 Seef onesenaterv. The wanwes se to su oa=ea se vesa as easemeremeats we to ao ia*erereten sae test reeere ce**manae w ee meermeeren re%.ree en ca s versa ie **
10ene where ca.ne ma aae e accaresace =.ua 8eraseesa ** 44e me ree swenemas to Senea 23 40t ed "teneares ter #reescemme i s.
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e for essa ae aem weeaana maa.eerma 4 saweee awa er is reis eaa tC*. et tae vei.e esse.e.en.e eat ue n awe waser Seseen 2032. %ere taas a womme 5orm MC & 4 re es how es a smwes wae.se 'ee taan 10'. ' =ev ee 7 tosssa. tae enca wese per rec e enram esseawre to s in tae = ace enev weaeasm ease-(23 eaa es ma ne i33 asass ane rerooms: er tea 'en aae Demun 12.
Aceme se eremi 9.10 eae I t for enn eseios samass e oro.e.cos,ev aeum t assee.
er essen.ro aas r,ecere ao tetr sa uewaat ae tae'eu taen 10 * =av ewwor**arees.
Lais are estrussene aree asemanat meermesies Team owemer geruse,se neew e eiearnaeas te caracen ag towe term.
Issue 33,
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es es eves are aretectee sam eve en es ase sco o e
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3.ess Tae cose *e ce in.a se es ese a-cea a
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essen.re.
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e se reeere maea neev enseaw e ee wie=se m waeer ene crow.s as e* earaesen Isme 15.
froa seem iJ it e sterte cones are eateres.a e*em a2t 92tL1016i =asen mee=s we se J rems eer svarter to tae ane the case sewe artae tse eae e+ ao sme=a y eva-w estee neer. Ipswiri si.e item tee w wees care et ser-Ace ste== 14 ar.ne was rece=ec ie e.
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Devermee tae..m.seg eart of =e A A ev % sweet.ae asen 4. Deus rece=ee e=w a.,aceo se 6ee t=e= a ta.eaae* eu,.
stem I6 ererse stem I F. *ae vassee satt er ce.**3 aos es see eate se sa t*e term erse.ees taas v.aees Gese w is eteg so.rcea es ce titetwas A:r msee eas= eam ter**amt at tne one et ce ser.ca vese.seasse me.w'atea s.as a cierrent recere et f=e esees rece=ee ese gy one me e.as ma*ca
- eve nos es.ver sees enteres,sa tme sewerte of trws s'tset The ser.oe of esseea s smou e seeciPa ce es ce r
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se see ee uws.en. was termeates. Aer amaras esar.eay i
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r ameneer ewerter of ISI2 **eas to *as.ea se #%na.ag 'eera 3
one won.anwe.ac.catee.2. mee.es 7* sev. ' Jar:=, Mar. g7.
temasse rv 1.194 o 19 a Tus eter= as.aa.1. t $62 30 e4 se neeaany mea.#y esses are, enteree a tswei toege seweel.1 Sol ano picmee wp 'assv t062. it weeaag. wn.er geouery S.1942. we.us se inesatse as sea, l. I ad2..aa.14 1862.
MfvACY ACTITATtutNT Awamsus se $ US C. SS2ases 131. missene see ese se mt'en 3 at tas Panese An et it fa # wee.s Les $3 5791. vae sese *g sats.nene e fora voes to memeums mae messe ines,ase ee se one s.s-er A.p.seere Commenes se som see C 3. f ee meermones e mammaee e a s.ame es teueres ese eases on e #C 27 ame ases asas peeses As, esse st244 60s.een 1. ISFil.
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S.S. No.
Birth Date Home Mailing Address Company Date of GOT-2 Completion Current Quarterly Exposure MREM (actual or estimated)
Lifetime Exposure MREM (actual or estimated)
Security Badge Number I hereby certify the above information is correct and accurate to the best of my knowledge.
Signature Date Temporary TLD Issued #
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ATTACIDfENT 9 i.NAusu.amr-m i t
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, HP 1602.01.9 i
9 ATTACHMENT 10 DAvts.3 ESSE NUCLEAR POWER STATION
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OOSIMETER RECORD FOR NEUTRON CALCULATION "*"""I soons
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5 HP 1604.01
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Davis-Besse Nuclear Power Station Unit No. 1 Health Physics Procedure HP 1604.01 Personnel Decenta=ination l4ll pin 4 'Ul~Yl.?l'*n
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~-a1.i;j *fy Record of Approval and Changes 2/6/76 J
Prepared by Bruce L. Geddes Date Submitted by S. (d.
2 /I O / 7 6 Sec d n Head Date Recer. mended by
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' SRB Chairman tate N A.008 QA Approved Manager of ity Assurance Date Approved by
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No.
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ation Date Approved Date pp ed Date
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PURPOSE 1.1 This procedure delineates guidelines to be followed by all personnel in the methods of personnel decontamina-tion.
2.
REFERENCES 2.1 Davis-Besse Radiation Protection Manual, Section 3.5.4.2 2.2 US Department of Health, Education and Welfare Radio-logical Health Handbook 2.3 Health Physics Procedure - External Personnel Radiation Exposure Monitoring, HP 1602.01.
3.
EQUIPMENT NEEDED 3.1 Health Physics personnel contamination monitoring equip ment:
3.1.1 Rm-14 with HP 260 or HP 210 probe.
3.2' Protective clothing to prevent spread of contamination, such as plastic gloves, apron, bib, etc.
4 3.3 Personnel Decontamination Equipment (some of which could be):
3.3.1 Gauze pads 3.3.2 Cotton swabs 3.3.3 Nail clippers 3.3.4
' Hair cutting equipment, such as clippers, scissors, etc.
3.3.5 Safety razor and blades 3.3.6 Soft brush 3.3.7 Mild hand soap 3.3.8 Special decontamination soap, such as Turco's "Decon Hand Soap" 4.
DATA SHEETS REQUIRED 4
4.1 Attachment II Personnel Contamination Worksheet
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HP 1604.01.5 j
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PRECAUTIONS AND SAFETY 5.1 Contact Chemistry and Health Physics Section personnel in event of any contamination of the hands or body or any contamination of the ears, eyes, nose or throat.
5.2 Where contamination spread to open wounds is possible, contact the Chemistry and Health Physics Foreman or his designee before decontamination is started.
5.3 Only water will be used to decontaminate the mouth or nose.
5.4 When washing, caution must be exercised to prevent breaking the skin, as this creates a potential for internal contamination.
5.5 Never use water which is warmer than body temperature for washing, as this opens the body pores which may absorb contamina-tion, creating a more difficult problem and potential internal contamination.
5.6 Decontamination shall be performed using the necessary precautions and protective clothing to prevent the spread of contamination.
5.7 Decontamination of skin with iodine absorption cannot be achieved.
If levels of skin contamination cannot be reduced after several attempts have been made, a whole body count should be used to
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determine the presence of iodine contamination. If contamination levels are greater than 10,000 dpm, medical help may be necessary.
Iodine levels in the skin less than 10,000 dpm could be released and so noted on Attachment I.
5l 5.8 Deleted 6.
ONSITE DECONTAMINATION PROCEDURE 6.1 Contamination of Hands or Body 6.1.1 If contamination is detected on the body of radiation worker, contact the Health Physics Department for assistance.
NOTE:
A person is considered contaminated when there is greater than 100 cpm over background as indicated on a RM-14 Frisker or other similar instrument.
6.1.2 Thoroughly wash the affected areas with mild soap for 2-3 minutes. When washing hands pay particular attention'to finger nails and areas between fingers.
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6.1.3 Use lukewarm water, using caution to prevent contamination j
from entering any body openings or skin breaks, wash, starting with the head and proceeding downwards.
6.1.4 Rinse thoroughly with large amounts of clean water, dry and monitor with a survey instrument such as a RM-14 using HP 260 or HP 210 probe.
If contamina-4 tion levels exist greater than 100 cpm above background, repeat the washing and rinsing process two (2) more times using fresh water for each wash.
6.1.5 When surveying for contamination, be sure to check in areas where contamination may be hidden. Areas not previously contaminated must be surveyed as contamination may have been spread to those areas.
6.1.6 Decontamination is considered complete when the area 4l is 100 cpm above background or less when monitored with an RM-14 with a HP 260 or HP 210 probe.
4l 6.2 The following steps are to be performed under the supervision of Chemistry and Health Physics Foreman:
6.2.1 Cleanse the area with special decontamination soap, such as Turco's "Decon Hand Soap" (a soft brush may be used); dry the area and survey.
6.2.2 Repeat Step 6.2.1 until contamination levels are less 4l than 100 cpm above background or until there is no decrease in the level of contamination.
6.2.3 If the contamination is located in and around the finger nails, clip or trim the finger nails as much as possible.
6.2.4 If none of the proceeding steps are sufficient to remove the contamination, any further decontamination will be administered by the Chemist and Health Physicist or a medical coordinator.
6.3 Hair Contacination 6.3.1 Contamination of the hair shall require the immediate notification of the Chemistry and Health Physics Foreman or his designee.
6.3.2 If the contamination is present only in a small area, the hair may be cut off.
6.3.3 If washing is required, the hair should be washed with t
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HP 1604.01.4 the individual in a position that will prevent the spread of contamination to other parts of the body.
6.3.4 Dry the hair and survey for contamination.
6.3.5 Continue Steps 6.3.3 and 6.3.4 until contamination 4
levels are less than 100 cpm above the background or until there is no decrease in the level of contamination.
6.3.6 If none of the proceeding steps are sufficient to remove the contamination from the hair any further decontamination will be administered by the Chemist and Health Physicist or a medical coordinator.
6.4 Contamination of the Ear 6.4.1 Contamination of the ear shall require the immediate notification of the Chemistry and Health Physics Foreman or his designee.
6.4.2 Contamination in the outer ear may be decontaminated with soap and tepid water on a cotton tipped swab, using care not to get any water in the inner ear. The swabs should only be damp and the individual shall tilt his head so that the ear is down.
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6.4.3 Do not flush the ear with water or anything else.
6.4.4 Contamination in the inner ear or other methods of decontamination of the outer ear will only be administered under the supervision of the Chemist and Health Physicist or a medical coordinator.
6.5 Contamination of the Eyes.or Mouth 6.5.1 Contamination of the eyes or mouth shall require the immediate notification of the Chemistry and Health Physics Foreman or his designee.
6.5.2 The eyes and mouth may be flushed with tepid water but no other action may be taken.
6.5.3 When flushing the mouth, bend the individual over the sink to prevent swallowing of the water.
I 6.5.4 Any further decontamination steps will only be administered i
under the supervision of the Chemist and Health l
Physicist or a medical coordinator.
6.5.5 After decontamination, have the individual whole body counted to evaluate internal exposure.
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b s-5 HP 1604.01.3 6.6 Contamination of the Nose 6.6.1 Contamination of the nose shall require the immediate notification of the Chemistry and Health Physics Foreman or his designee.
6.6.2 Have the contaminated individual blow his nose into a facial tissue or paper towel.
6.6.3 Check the paper for contamination.
6.6.4 Check the nose for remaining contamination. If contamination remains, a damp cotton swab may be used for decontamination.
6.6.5 It is generally better if the contaminated individual performs the following steps himself:
1.
Insert the damp swab into the nostril as far as possible. Exercise caution so that the swab does not touch the sides of the nostril during insertion.
2.
Press the swab lightly against the sides of the nostril and withdraw in a circular motion so all sides of the nostril are wiped. Check swab for contamination.
6.6.6 Continue Steps 6.6.5.1 and 6.6.5.2 until contamination levels are less than 100 counts above background and are no longer decreasing or the nostril becomes tender.
6.6.7 If none of the above steps are sufficient to remove the contamination, any further decontamination will be administered by the Chemist and Health Physicist or a medical coordinator.
6.6.8 After decontamination is complete, the individual showers and then will be whole body counted to check the internal exposure received.
7.
OFFSITE DECONTAMINATION PROCEDURE 7.1 Offsite Decontamination Facilities 3
7.1.1 Decontamination of a few plant employees during an emergency could be accomplished at the DBAB P.adiological Testing Lab.
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6 HP 1604.01.5 7.1.2 The major Decontamination Center for an evacuation of Davis-Besse personnel is the TED Lindsay Service Center. This is located at State Route #590 and State Route #20.
7.2 Offsite Decontamination 7.2.1 The Chemistry and Health Physics Section is responsible for monitoring and decontamination of personnel evacuated from the DBNPS.
7.2.2 The Chemist and Health Physicist or his designee will assign C&HP Testers to the Offsite Decontamin-ation Center to perform monitoring and decontamin-ation as required.
NOTE:
The number of C&HP Testers assigned to the center will be determined by the number of DBNPS personnel evacuating to the center.
7.2.3 Personnel 1 contamination should first be attempted by using sealed towelettes or a spray foam and clean rags.
NOTE:
This first method will generate very little m
liquid radwaste for easier clean up.
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7.2.4 Further decontamination should be accomplished in accordance with Section 6 of this procedure.
7.2.5 Attachment I lists the equipment available from the Station Health Physics Monitoring Room for use at the Offsite Decontamination Center. Additional C&HP Tester Equipment,- if required, is available upon approval by the Chemist and Health Physicist or his designee.
NOTE:
Equipment should be picked up by and accompany the assigned C&HP Tester (s) to the Decontamina-tion Center.
8.
REPORTING AND RETENTION 8.1 All personnel contamination / decontamination will be documented on Attachment II of this procedure.
5 8.2 The completed Attachment II will be forwarded to the Health Physics Supervisor who will maintain a file on an annual basis.
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OFFSITE DECONTAMINATION EQUIPMENT (Not all instruments will be required)
E-520 Survey Meter 1 ea PRM-4A with HP 210 Probe 1 ea RM-14 with HP 260 Probe 1 ea E-400 with HP 270 Probe 1 en i
Additional supplies that may be required and should be considered are as follows:
1.
A special decontamination soap such as "Turco's'Decon Hand Soap" 2.
Soft brush 3.
Mild hand soap 4.
Cotton swabs 5.
Gauze pads 6.
Hair shampoo 7.
Towels 8.
Razors and shaving cream 9.
Towelettes 10.
Spray foam.deconer Page 1 of 1
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HP 1604.01.4 DAVIS-BESSE NUCLEAR POWER STATION PERSONNEL CONTAMINATION WORKSHEET NAME DATE TLD.
TIME LOCATION OF INCIDENT DESCRIPTION OF INDICENT:
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LOCATION OF HOW INITIAL 1st 2nd 3rd CONTAMINATION DETERMINED LEVEL DECON DECON DECON BI0 ASSAY AND/OR WHOLE BODY COUNT INFORMATION i
REMARKS I
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C/H.P. Technician Date
. Health Physics Supervisor END Page 1 of 1 p.
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