ML20042B081

Public Version of Revised Emergency Plan Implementing Procedures,Including Procedure HNP-4828 Re Transferring Primary Coolant from 75-m1 Bomb During post-accident Conditions

ML20042B081
Person / Time
Site:	Hatch
Issue date:	03/09/1981
From:	GEORGIA POWER CO.
To:
Shared Package
ML20042B079	List: ML20042B081
References
PROC-820309-01, NUDOCS 8203240542
Download: ML20042B081 (11)

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9 PROCEDURE {

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Transferring Primary Coolant from 75dL3 %:warrasse T" Bomb During Post Accident ConditionA M " G- sc '

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PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED ( X ) NON-SAFETY REL ATED ( )

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- Georgia Power 1 me o See_ Title Page 1 of 3 TRANSFERRING PRIMARY COOLANT FROM 75ML BOMB DURING POST ACCIDENT CONDITIONS A. PURPOSE .

To provide a procedure to transfer the 75 ml.'s'of primary coolant to a 250 ml flask for chemical analysis.

To minimize dose rates to the technician who is transferring the sample f rom the 75 ml bomb to the sample 250 ml erlenmeyer flask.

B. SAFETY Observe Radiation Protection Procedures.

C. PRECAUTIONS Due to the high' dose rates and contamination levels which are to be expected with this kind of sample, extreme care and good technique must be adhered ~to and followed.

Laboratory supervision shall be consulted on all activities associated with analysis and counting any material obtained for post-accident analysis.

All attempts to analyze samples will be followed with the most restrictive H.P. practices. Constant H.P. monitoring will be provided and adhered to. A minimum of two persons will be required while analyzing the sample.

N_OTE_

At no time during analysis will personnel be ' allowed to receive more than 1.25 R unless a Lab Supervisor or his designee signs

' FORM 2 of HNP-8002, Authorization to Exceed Administrative Exposure Guides.

l D. EQUIPMENT

1. High range survey meter (PlC-6A, Teletector, or equivalent)

2. Count rate instrument (E-120, or equivalent)

3. High range dosimeter (10R) and TLD's

4. Full PC's l '

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5. Remote handling tools with various attachments

6. Finger ring TLD's

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E. TRANSFERRING .

NOTE The sample is still in the 75 mi sample bombThe anddoseis contained in rates on the the sample pig and located in the hot lab.

bomb are extremely high approximately 100 R/hr contact reading.

All transfering must be done in a sample hood. Most if not all of the equipment will be already set up in the lab and ready for transferring. Prior to transferring the sample, be sure to sign in on a blanket RWP.

The technicians doing the transfer will be dressed out. l

1. While bomb is still in the shield place the other end of the quick disconnects on the bomb using remote tools.

2. Remove lead brick from top of the lead shield. Monitor area and bomb for dose rates.

' . Using remote handling tools, lift the bomb out of the cask and place bomb on the three-fingered ring stand behind lead bricks in the sample hood. The bomb will be attached to the ring stand low enough not to cause off balancing of the stand.

NOTE Once Sections E-1 and E-2 have been completed, the area i

! will be surveyed for contamination and dose rates. Working time will be limited by the dose recieved.

4. Using remote tools, open the valves on the bomb and drain the sample into the flask.

l 5. Cap the flask with rubber stopper.

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6. Survey 75 ml bomb for contamination and dose rates, if less than 1000 dpm and less than 1 R/hr, place bomb in plastic bag and place in shielded area as required by Lab If the bomb exceeds 1 R/hr or 1000 dpm, place l

Supervision.

in bag and put bomb back into the sample pig.

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I Refer to llNP-4329 for analysis to be done on the sample.

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3 of 3 F. DISPOSAL NOTE Keep sample bomb and all samples in the fume hood behind lead bricks until proper disposal methods are arranged.

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. GEORGIA POWER COMPANY HATCH NUCLEAR PLANT PROCEDURE Primary Coolant Analysis During Post-Accident Condition PROCEDURE TITLE HNP-4829 PROCEDURE NUMBER Lab RESPONSIBLE SECTION SAFETY RELATED (X ) NON-SAFETY RELATED ( )

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PRIMARY COOLANT ANALYSIS DURING POST-ACCIDENT CONDITION A. PURPOSE To provide a procedure for the analysis to be performed on the (Fuel cladding primary coolant during post-accident condition.-*

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B. SAFETY Observe Radiation Protection Procedures.

C. PRECAUTIONS

1. Due to the high dose rates and contamination levels which are to be expected with this kind of a sample, extreme care and good sampling technique must be adhered to and followed.

2. Laboratory Supervision shall be consulted on all activities associated with analysis and counting any material obtained for post-accident analysis.

3. All attempts to analyze samples will be followed with the most restrictive Health Physics practices. Constant H.P.

monitoring will be provided.

4. Samples greater than 100 R/hr will be shipped to an outside vendor for analysis. See HNP-8016 for Radioactive Shipment procedure. (100 R/hr/ liter = approximately 10 mci /cc).

NOTE At no time during analysis will personnel be allowed to receive more than 1.25 R unless a and Lab Supervisor or his designee signs FORM 2 of HNP-8002 Authorization to Exceed Administrative Exposure Guides.

D. EQUIPMENT

1. High range survey, meter (PlC-6A, teletector or equivalent)

2. Count rate instrument (E-120 or equivalent)

3. High range dosimeter (10 R) and TLD's

4. Full PC's

5. Remote handling tools with various attachments

6. Finger ring LD'c . Ab

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• E. ANALYSIS ,

NOTE All equipment must be placed behind lead shielding when performing the analysis. At no time will.the liquid waste be allowed to enter the radwaste system, NOTE Siaps E.2, E.3, E.4, E.5, and E.6 all need to be performed in the sample hood whenever possible.

The following analyses are to be performed on the primary

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coolant sample:

(1) D.O. HNP-7139 (2) pH HNP-7202 or 7203 Conductivity HNP-7204 or 7205 (3)

(4) Chlorides HNP-7004 or 7005 (5) Iodine Separation HNP-7110 Borons HNP-7003 (6) I (7) Gross Alpha (8) Isotopic The analysis will be performed while the technicians are fully dressed out. Working time will limited to dose received. High range (10R or 20R) dosimeter and finger

- rings will be worn in addition to normal dosimeters. Prior to analysis, be sure to sign in on a blanket R.W.P.

1. D.O.

l The D.O. probe will have to be placed in line after the 75 ml sample bomb has been taken or prior to taking the sample.

a. Place D.O. probe into sample line using quick disconnects and follow procedure HNP-4825 for valve manipulation.

NOTE The center connection of the D.O. probe is the inlet and the farsided connection Read D.O. directly on meter is the outlet.

face. The D.O. meter will be used with a 50 foot remote cable. ,,,y f g, n an n;> p , ; t , qq ' s

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2. pH With remote tools, pour enough sample in a 100 ml graduated cylinder and perform pH. Pour sample back into original flask when pH is finished.

3. Conductivity With remote tools, pour enough sample into a 100 ml beaker and perform conductivity. Pour sample back Clean into original up flask when conductivity has been performed.

equipment when finished.

4. Chlorides _

Pour 25 mis of sample into a beaker and perform chlorides as per HNP-7004. Clean up all equipment when finished.

Allow no waste to enter the rad waste syste,m.

NOTE Using a remote pipetter, pipet 1 ml of the sample into a one liter coly bottle filled with 999 mis of demin water. Close bottle and shake. Pipet 1 ml of diluted sample into 999 mis of demin water, close, and shake.

Dilution ratio is now af ter diluting two times 1:1x100

5. Iodine Separation Perform iodine separation in normal manner as per HNP-7131, using a diluted sample from section E-4 l

6. Baron Perform barons in normal manner and es per HNP-7003, using a diluted sample from section E-4 l r

l Prepare 2 more diluted samples as per Section E-4.

7. Gross Alpha Perform gross alpha analysis as per HNP-7131.

8. Isotopic _

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F. COUNTING NOTE The counting room must be habitable for counting samples. If it is not, refer to HNP-7251 for pro- '

cedure for mobilizing the counting room.'

l. Open Ge(L1) shield and place sample on the first shelf of the sample holder and close Ge(L1) shield door.

2. Press the collect button If %on DTthe MCA and is greater observe than 20%, the stop% dead time (%DT) meter.

collecting spectra by pressing the collect button again and redilute sample until it reads less than 1 mr/hr. If %DT is less than 20% acquire spectra for 1000 seconds or as directed by the Counting Room Foreman.

3. When 1000 seconds or count time is finished, the light behind the collect button will go out. Check calibration to see if it has drifted.

4. Remove sample from Ge(Li) shield and retain for other analysis as may be required later.

G. ANALYZING SPECTRA NOTE Refer to HNP-7215 Ge(L1) systems for additional information on counter system.

1. Transfer spectra from MCA to 9845 computer using computer program "CI-8100" or "0R7010."

2. After spectra has been transferred completely, run computer program "RWIONE" and answer question as required by computer display. Submit printout to Counting Room Foreman for i

approval and review.

3. Run program " RAP" on the same spectrum if required by Laboratory Foreman. Store spectrum in computer memory for later analysis.

4. Program "RWIDNE" generates data and information on the following:

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a. E Gamma MEV/ DIS

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b. E Beta MEV/ DIS

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d. D.E.I y 131, 132, 133, 134, 135

e. I uci/ml

f. Percent of Tech Spec limit for 0.E.I. [

NOTE ,

Computer libraries are not listed in this procedure l because of the many different isotopes which may need to be identified in the sample. i H. SPECTRA INTERPRETATION ,

NOTE Details of information shall not be released by anyone other than persons allowed to as directed by Plant Management.

All samples and spectrums will be stored for review later.

I. DISPOSAL OF HOT SAMPLES NOTE ,

Keep sample bomb and all samples'in the f0me hood behind lead bricks until proper disposal methods are arranged.

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