ML031920550

Emergency Plan Implementing Procedure EP-PS-130, Revision 16, HP II Dose Calculator.

ML031920550
Person / Time
Site:	Susquehanna
Issue date:	06/24/2003
From:	Susquehanna
To:	Document Control Desk, Office of Nuclear Reactor Regulation
References
EP-PS-130, Rev 16
Download: ML031920550 (76)

Text

Jun. 24, 2003 Page 1 of 1 MANUAL HARD COPY DISTRIBUTION DOCUMENT TRANSMITTAL 2003-29455 USER INFORMATION:

NamelG LACH* E M EMPL#:28401 CA#:0363 Add ess: A2 Pho 54-3 TRANSMITTAL INFORMATION:

TO: UhFftk1 RM- - 06/24/2003 LOCATION: DOCUMENT CONTROL DESK FROM: NUCLEAR RECORDS DOCUMENT CONTROL CENTER (NUCSA-2)

THE FOLLOWING CHANGES HAVE OCCURRED TO THE HARDCOPY OR ELECTRONIC MANUAL ASSIGNED TO YOU:

130 - 130 - HP II DOSE CALCULATOR: EMERGENCY PLAN- POSITION SPECIFIC PROCEDURE REMOVE MANUAL TABLE OF CONTENTS DATE: 04/16/2003 ADD MANUAL TABLE OF CONTENTS DATE: 06/23/2003 CATEGORY: PROCEDURES TYPE: EP ID: EP-PS-130 REPLACE: REV:16 REPLACE: REV:16 UP DE BE DISTRIBUTED WITHIN 5 DAYS IN ACCORDANCE WITI ZE ALL CHANGES AND ACKNOWLEDGE COMPLETE IN YOUR I

NI1 R )PY. FOR ELECTRONIC MANUAL USERS, ELECTRONICALLY RE Remove Tab ND ACKNOWLEDGE COMPLETE IN YOUR NIMS INBOX.

Deleted

Tab 4 EP-PS-1 30-4 ONSITE EMERGENCY MONITORING LOCATONS

• Remote Monitoring Station Locations

• OSCAR Monitoing Team Locations EP-AD-000-177, Revision 4, Page 1 of 1 (File R36-9)

Tab 7 EP-PS-1 30-7 PAR AIRBORNE RELEASES I II 1

PA-4 NOTES:

1. PA-# CAN BE USED TO REFER TO PROCEDURE STEPS FOR MORE DETAILED INFORMATION ON THE ACTION TO BE TAKEN.

2. DOSE PROJECTIONS DO NOT INCLUDE DOSE ALREADY RECEIVED.

3. TEDE - WHOLE BODY (TEDE) IS THE SUM OF EFFECTIVE DOSE EQUIVALENT RESULTING FROM EXPOSURE TO EXTERNAL SOURCES. THE COMMITTED EFFECTIVE DOSE EQUIVALENT (CEDE) FROM ALL SIGNIFICANT INHALATION PATHWAYS AND THE DOSE DUE TO GROUND DEPOSITION.

4. CDE - COMMITTED DOSE EQUIVALENT TO THE CHILD THYROID.

EP-AD-000-126, Revision 10, Page 1 of 6

Tab 7 EP-PS-1 30-7 PAR LIQUID RELEASES ENTRY:

INDICATIONS OF A POTENTIAL LIQUID RELEASE

- UNISOLABLE RADWASTE TANK RELEASE

- LEAK TO COOUNG TOWER BASIN

- LEAK TO SPRAY POND EC Values RADIONUCUDE (pCUml)

Co-60 3E4 Sr-91 2E46 Mo-99 2E46 Te-132 9E4 j 1-131 1 IEl 1-133 7E4 1-134 4E4 1-135 3E4 Cs-134 9E-r :I Cs-136 6E 4 I Cs-137 IE4 I Ba-139 2EJ Ba-140 SE4 I Ba-141 3E4 Np-239 2E 4 I

I I

I NoTES: .

1. PL4 CAN BE USED TO REFER TO PROCEDURE STEPS FOR MORE DETAILED INFORMATION ON THE ACTION TO BE TAKEN.

2. CALLS TO DANVILLE ARE COURTESY INFORMATION CALLS ONLY.

PROTECTIVE ACTION RECOMMENDATION CALLS MUST BE MADE BY DEPIBRP.

Yes T

RAD PERSONNEL NOTIFY DEPIBRP FOR DOWNSTREAM USERS TO DIVERT WATER SUPPLY & ESTIMATED TIME OF ARRIVAL OF RELEASE AT DANVILLE PL-9 EP-AD-000-1 26, Revision 10, Page 2 of 6

Tab 7 EP-PS-1 30-7 PUBLIC PROTECTIVE ACTION RECOMMENDATION GUIDE AIRBORNE RELEASES a PA-1 MONITOR CONDITIONS FOR PAR APPLICATION The following conditions should be continuously evaluated to determine if a PAR should be implemented or changed:

0 Plant status and prognosis for changes in conditions Onsite radiological conditions Status of actual or potential radioactive releases 0 Offsite dose projections or actual offsite radiological conditions Escalation in Emergency Classification (i.e., General)

(Go to PA-2)

PA-2 HAS A GENERAL EMERGENCY BEEN DECLARED?-

o YES - If a GENERAL EMERGENCY has been declared, a PAR must be made within 15 minutes of the emergency declaration. The PAR requirement is found in NUREG-0654. (Go to PA-3) o NO- If a GENERAL EMERGENCY has not been declared, continue to monitor plant status, parameter trends, and prognosis for termination or escalation of the event. (Go to PA-1)

PA-3 IS THERE A VALID DOSE PROJECTION INDICATING DOSES OF 2 I REM TEDE OR > 5 REM CDE CHILD THYROID AT A DISTANCE OF > 2 MILES?

O YES - If the projected doses at 2 miles are 2 I REM TEDE or 2 5 REM CDE child thyroid, then full evacuation (0-10 miles) is recommended.

(Go to PA-5)

El NOIUNKNOWN- (Go to PA-4) o PA-4 RECOMMEND EVACUATION 0-2 MILES; SHELTER 2-10 MILES Limited Evacuation (0-2 miles) and sheltering is appropriate for events that are significant enough to cause a General Emergency classification and dose projections are low, unknown, or below full evacuation guidelines.

0 PA-5 EVACUATE 0-10 MILES Full evacuation of members of the general public is recommended at this point based on the emergency classification and dose projections.

EP-AD-000-1 26, Revision 10, Page 3 of 6

Tab 7 EP-PS-1 30-7 LIQUID 0 PL-1 ENTRY This section is entered when there are indications of a potential unplanned radioactive liquid release.

Indications of potential unplanned releases include:

• an unisolable radwaste tank release

• leaks to cooling tower basin

• leak to spray pond (Go to PL-2)

O PL-2 CHEMISTRYIENVIRONMENTAL SAMPLING-DIRECTOR (ESD)

TAKES AND ANALYZES SAMPLE (Go to PL-3)

PL-3 IS THERE AN UNPLANNED RELEASE TO THE RIVER?

O YES - An unplanned release to the river has occurred when event-related radioactive materials are released to the river that are not controlled by the release methodologies described in the ODCM and applicable Chemistry procedures.

(Go to PL-4) o NO- If there is no unplanned release to the river, then no notifications are required and monitoring should continue.

o PL-4 RAD PERSONNEL NOTIFY DEP/BRP THAT A RELEASE HAS OCCURRED Depending on which facility is activated, the notification to BRP will be made by the RPC (TSC), Dose Assessment Supervisor, or Radiological Uaison at the EOF.

DO NOT MAKE ANY PROTECTIVE ACTION RECOMMENDATIONS AT THIS TIME.

(Go to PL-5)

EP-AD-000-1 26, Revision 10, Page 4 of 6

Tab 7 EP-PS-1 30-7 LIQUID (CONT'D)

PL-5 IS RELEASE 2 TECHNICAL REQUIREMENTS LIMITS (AT THE RELEASE POINT)?

0 YES- Releases are at or greater than Technical Requirements limits when Chemistry determines that the limits are exceeded based on methodologies described in the ODCM and applicable Chemistry procedures.

(Go to PL-6) 0 NO- If the release is < Technical Requirements limits, then no further notifications are required and monitoring should continue.

O PL-6 RAD PERSONNEL NOTIFY DANVILLE THAT A RELEASE HAS OCCURRED Depending on which facility is activated, the notification to Danville will be made by the RPC (TSC), Dose Assessment Supervisor, or Radiological Liaison at the EOF.

DO NOT MAKE ANY PROTECTIVE ACTION RECOMMENDATIONS AT THIS TIME.

(Go to PL-7)

O PL-7 CHEMIFTD EVALUATES RELEASE VERSUS. PAGs The results of the sample analysis are compared to the PAGs for radionuclides in drinking water. The analysis calculates the expected concentration at Danville, taking into account the dilution afforded by the river.

PL-8 DOES RELEASE EXCEED PAGs (AT DANVILLE)?

o YES - If a single isotope exceeds its effluent concentration (EC) value or the sum of EC fractions exceeds 0.85, then a protective action recommendation should be made for downstream water users (e.g.,

Danville) to DIVERT DRINKING WATER supply to a backup supply or terminate user intake until the release has passed.

(Go to PL-9) o NO- If the PAGs are not exceeded, monitoring should continue and the State should be notified that no PAR for the liquid release is required.

(Go to PL-10)

EP-AD-000-1 26, Revision 10, Page 5 of 6

Tab 7 EP-PS-1 30-7 LIQUID (CONT'D)

O PL-9 RAD PERSONNEL NOTIFY DEP/BRP OF PAR.

Depending on which facility is activated, the PAR notification to DEP/BRP will be made by the RPC (TSC), Dose Assessment Supervisor, or Radiological Liaison at the EOF. The PAR FORM shall be used to document the PAR.

DO NOT COMMUNICATE THE PROTECTIVE ACTION RECOMMENDATION TO DANVILLE. THE DEPIBRP IS RESPONSIBLE FOR THIS COMMUNICATION AND ANY COMMUNICATION TO OTHER DRINKING WATER SUPPLIERS OR WATER USERS.

0 PL-10 RAD PERSONNEL NOTIFY DEPIBRP No PAR is required. Depending on which facility is activated, the RPC (TSC), Dose Assessment Supervisor, or Radiological Liaison at the EOF shall notify DEP/BRP that no PAR is required.

EP-AD-000-1 26, Revision 10, Page 6 of 6

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE TABLE OF CONTENTS SECTION PAGE 1.0 EMERGENCY DOSE LIMITS 2 2.0 EMERGENCY EXPOSUREIACCIDENTAL OVEREXPOSURE 3 3.0 PROTECTIVE ACTIONS , 3 4.0 EMERGENCY EXPOSURE NOTIFICATION AND HEALTH CONSEQUENCE INVESTIGATION 7 EMERGENCY EXPOSURE EXTENSIONS 8 HEALTH PHYSICS AND ALARA CONSIDERATIONS DURING AN EMERGENCY 12 NOTE: EMERGENCY EXPOSURE EXTENSION REQUEST FORM and POTASSIUM IODIDE TRACKING FORM can be found as Forms EP-AD-000-135 and EP-AD-000-141, respectively.

EP-AD-000-125, Revision 9, Page 1 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK 0 1.0 Limits for EMERGENCY doses.

3 1.1 An EMERGENCY DOSE AUTHORIZATION (see EMERGENCY EXPOSURE EXTENSIONS) may be granted in order to protect facilities, and or equipment to substantially limit the escape of radioactive effluents or control fires. The maximum planned doses are:

1.1.1 Whole body (TEDE)(') dose shall not exceed 10 rem.

1.1.2 Dose to any organ (CDE)(2), including the skin and extremity (SDE)(3), shall not exceed 100 rem.

1.1.3 Dose to the lens of the eye shall not exceed 30 rem (LDE)(4).

O 1.2 An EMERGENCY dose authorization may be granted for life-saving actions or protection of large populations. The maximum doses are:

1.2.1 Planned whole body (TEDE)(1 ) doses shall not exceed 25 rem.

1.2.2 Planned dose to any organ (CDE) 2 ), including skin and extremity doses, shall not exceed 250 rem.

1.2.3 Dose to the lens of the eye shall not exceed 75 rem (LDE)(4).

1.3 RARE situations may occur.in which a dose GREATER THAN those specified in SECTION 1.2 above for emergency dose would be unavoidable to carry out a lifesaving operation or to avoid extensive exposure of large populations. It is not possible to prejudge the risk that one should be allowed to take to save lives of others, therefore no upper limit has been established.

(1) The sum of the Effective Dose Equivalent resulting from the exposure to external sources and the Committed Effective Dose Equivalent incurred from all significant inhalation pathways during the early phase.

(2) The Committed Dose Equivalent to the thyroid from radiolodine.

(3) Shallow Dose Equivalent.

(4) Lens Dose Equivalent.

EP-AD-000-125, Revision 9, Page 2 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK 0 2.0 For any EMERGENCY EXPOSURE OR ACCIDENTAL OVEREXPOSURE, the assessment actions in step 2 of the EMERGENCY EXPOSURE EXTENSIONS must be performed.

3.0 PROTECTIVE ACTIONS 3 3.1 Potassium Iodide 3.1.1 For thyroid doses that are strongly expected to exceed 10 rem (CDE) (2), ingestion of a KI dose of 130 mg (100mg - iodine) should be recommended, except as noted in paragraph 3.1.2, to personnel whose emergency assignment or qualifications do not allow other protective measures to be taken (e.g. respiratory protection, evacuation, relocation, etc.) to maintain the dose to the thyroid at less than 10 rem.

NOTE: HHSIFDA guidance is that adults over 40 years of age need take KI only in the case of a projected large internal radiation dose to the thyroid ( > 500 rem) to prevent hypothyroidism; the guidance is 10 rem for adults over age. 18 to age 40.

3.1.2 KI should not be administered to any emergency worker who:

a. does not concur with its use, or

b. has a known allergic reaction to iodine and/or foods containing iodine such as shellfish, or

c. has been directed by their Physician or Pharmacist to avoid ingestion of iodine and/or foods containing iodine such as shellfish.

(2) The Committed Dose Equivalent to the thyroid from radioiodine.

EP-AD-O00-125, Revision 9, Page 3 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK O 3.1.3 Onsite issuance of KI for iodine prophylaxis requires the approval of the EMERGENCY DIRECTOR. Issuance to EOF and FIELD EMERGENCY MONITORING/SAMPLING TEAM personnel requires the approval of the RECOVERY MANAGER when the EOF has relieved the TSC of emergency management activities.

The EMERGENCY DIRECTOR will approve issuance prior to that time. These approvals must be documented on the POTASSiUM IODIDE (KI) TRACKING FORM.

3.1.4 Unless the EMERGENCY DIRECTOR or RECOVERY MANAGER instructs personnel to do otherwise, the KI tablets should generally be taken as soon as possible after thyroid dose exceeding 10 rem CDE (2) is projected.

NOTE: Stable iodine (KI) is most effective when administered immediately prior to exposure to radioiodine. Significant blockage of the thyroid dose can be provided by administration within a few hours after uptake of radiolodine.

3.15 In the event a significant exposure to the thyroid is projected to continue over a period of several days the CONSULTING RADIOLOGICAL PHYSICIAN should be requested to provide a recommended KI dosage for subsequent KI usage. (See Emergency Telephone Directory for telephone number.)

3.16 Until input/advice from the CONSULTING RADIOLOGICAL PHYSICIAN is available, a quarter of a tablet should be taken on days of exposure that follow the day on which the initial full tablet dose (130 mg) was taken.

3.17 If a worker expresses concern with the use of KI and/or is unsure if it will interact with his/her current medication,

a. the CONSULTING RADIOLOGICAL PHYSICIAN should be requested to provide input/advice to the individual concerning the administration and cessation of KI use prior to its ingestion by the individual. (See Emergency Telephone Directory for telephone number.)

(2) The Committed Dose Equivalent to the thyroid from radioiodine.

EP-AD-000-1 25, Revision 9, Page 4 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK D

b. control and track workers' dose, to limit their projected thyroid dose to 40 rem total organ dose. As warranted, ensure adjusted RWP controls and dose extensions are in place.

3.1.8 Should the projected dose to the thyroid not exceed 10 rem CDE (2) but the worker expresses the strong desire to use KI, the worker may do so at his/her own risk. In such case, the RPC or DASU as appropriate will inform the worker of the potential risks and benefits as described below and will recommend the person contact the CONSULTING RADIOLOGIC-AL PHYSICIAN for further guidance.

NOTE: Radiation exposure to the thyroid glands of adults does not appear to lead to cancer but has been shown to cause other deterministic effects (such as hypothyroidism resulting from thyroid ablation) from very high radiation doses to the thyroid.

For persons over 40 years of age, HHS/FDA recommends KI only for projected doses to the thyroid of above 500 rem, to prevent hypothyroidism.

The National Council on Radiation Protection and Measurement (NCRP Report No. 55) concludes that the risk of adverse effects from use of KI is on the order of 5 in 10 million.

In some cases, hyperthyroidism (excessive functional activity of the thyroid gland) is possible.

Those most at risk are patients with thyroid pathologies. This is most common in patients with goiter. This complication can be serious when the person also has heart disease. The risk of adverse effects is higher in adults of age 45 years and older, due to the frequency of diagnosed and sub-clinical thyroid disease and the use of certain prescription pharmaceuticals that would lead to a drug interaction.

°2) The Committed Dose Equivalent to the thyroid from radioiodine.

EP-AD-000-125, Revision 9, Page 5 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK0 HHS/FDA observes that short-term administration of KI at thyroid blocking doses is safe. The risks of stable iodine administration include sialadenitis (an inflammation of the salivary gland), gastrointestinal disturbances, allergic reactions, and minor rashes.

Other risks may apply if repeated doses of KI are ingested.

3.1.9 If the individual states the intent to take KI absent a projected dose of 10 rem (CDE)(2) or more, the RPC or DASU will document in his/her logbook that individual's intent,ithat information on risks and benefits was described to the individual, and the statement that the individual was notified that ingestion was at the individual's own risk.

3.1.10 For an injured and/or contaminated worker sent to a hospital for treatment, the patient will be under the care of the attending physician. As such, plant procedures no longer apply and KI issuance will be at the discretion of the attending physician. The physician can rely on a senior Health Physics Technician Level II or Health Physics Management to provide the in-plant radiological data on which to base their decision.

o 3.2 Protective measures should be implemented for EOF personnel at the direction of the DOSE ASSESSMENT SUPERVISOR, within the bounds of RWPs #8001 and #8002. Consultation with and approval by the RPC is needed for RWP revisions.

o 3.3 Exposures to members of local offsite support groups, (ambulance workers, fire fighters) shall not exceed 500 mrem (TEDE)(1) for the performance of support duties on the site of the Susquehanna SES.

(2) The Committed Dose Equivalent to the thyroid from radioiodine.

(1) The sum of the Effective Dose Equivalent resulting from the exposure to external sources and the Committed Effective Dose Equivalent incurred from all significant inhalation pathways during the early phase.

EP-AD-000-125, Revision 9, Page 6 of 13

Tab 8 EP-PS-1 30-8 PPL EMERGENCY PERSONNEL DOSE ASSESSMENT AND PROTECTIVE ACTION RECOMMENDATION (PAR) GUIDE CHECK 0 4.0 EMERGENCY EXPOSURE NOTIFICATIONS AND A HEALTH CONSEQUENCE INVESTIGATION must be conducted for any emergency exposure as outlined in step 6 of the Emergency Exposure Extensions.

NOTE: Reference for section 3.1 are as follows:

1. HHS/FDA Guidance-Potassium Iodide as a Thyroid Blocking Agent in Radiation Emergencies, December 2001.

2. LeGuen, B. et.al., French Approach for the Distribution of Iodine Tablets in the Vicinity of Nuclear Power PMints, Health Physics 2002.

3. PEMA, Report to the REPAC from the Potassium Iodide Working Group, January 2001.

EP-AD-000-1 25, Revision 9, Page 7 of 13

Tab 8 EP-PS-1 30-8 EMERGENCY EXPOSURE EXTENSIONS CHECK El

1. Fill out the attached EMERGENCY EXPOSURE EXTENSION REQUEST Form.

2. Review the following factors:

El Rescue personnel should be volunteers or professional rescuers.

El Other considerations being equal (e.g., skill, potential need for person on another mission) personnel above the age of 45 are preferred.

D3 Rescue personnel should be familiar and briefed with the consequences of exposure.

E3 Women capable of reproduction should not take part in an effort requiring EMERGENCY exposure.

El Use of personnel with high lifetime cumulative exposure should be discouraged.

E All reasonable measures must be taken to control contamination and internal exposure.

E3 Exposure under these conditions shall be limited to once in a lifetime.

E3 For exposures greater than 25 rem whole body (TEDE), the persons undertaking any emergency operation in which the dose will exceed 25 rem to the whole body (TEDE) should do so only on a voluntary basis and with full awareness of the risks involved, including the numerical levels of dose at which acute effects of radiation will be incurred and numerical estimates of the risk of delayed effects.

See the following two tables for general information concerning Health Effects &

Cancer Risks.

EP-AD-000-125, Revision 9, Page 8 of 13

Tab 8 EP-PS-1 30-8 EMERGENCY EXPOSURE EXTENSIONS CHECK 0 Health Effects Associated with Whole Body Absorbed Doses Received Within a Few Hours(a)

Whole Body Absorbed Early Fatalities() Whole Body Absorbed Prodromal Effects()

Dose (rad) (percent) Dose (rad) (percent affected) 140 5 50 2 200 15 100 15 300 50 150 50 400 85 200 85 460 95 250 98 (a) Risks will be lower for protracted exposure periods.

° Supportive medical treatment may increase the dose at which these frequencies occur by approximately 50 percent.

Symptoms (nausea, vomiting) which occur within a few hours after exposure to large doses of radiation and which usually precede more serious health effects.

Approximate Cancer Risk to Average Individuals from 25 Rem Effective Dose Equivalent Delivered Promptly Average Years of Life Lost If Age at Exposure Approximate Risk of Premature Death Premature Death Occurs (years) (deaths per 1,000 persons exposed) (years) 20 to 30 9.1 24 30to40 7.2 19 40to50 5.3 15 50to60 3.5 11

3. Review the HEALTH PHYSICS AND ALARA CONSIDERATIONS DURING EMERGENCIES which is attached.

4. Obtain appropriate approval signatures as outlined in the table below.

EXTENSION FROM TO mrern ffEDE) mrern (TEDE) APPROVAL ACTIONS 4000 <25000 (ED or RM) and RPC ALARA REVIEW AND APPLY EMERGENCY EXPOSURE CONSIDERATIONS

>25000 (ED or RM) and RPC ALL OF ABOVE AND BRIEFING ON RISKS EP-AD-000-125, Revision 9, Page 9 of 13

Tab 8 EP-PS-1 30-8 EMERGENCY EXPOSURE EXTENSIONS CHECK D

5. If the Emergency Dose Extension is for greater that 4 rem (TEDE), have the volunteer sign the EMERGENCY EXPOSURE REQUEST Form acknowledging that they are a volunteer and are fully aware of the radiological risks of acute and delayed effects.

6. Upon completion of the activity requiring the Emergency Exposure perform the following:

o Collect, process, and evaluate personnel dosimetry devices when technically appropriate.

o Investigate the circumstances of all emergency exposures and confirm the dose received.

o Notify the NRC of emergency exposure as follows:

Immediate notification of the NRC is required for:

a. Exposure of the whole body of greater than 25 rem (TEDE); or

b. Exposure of the skin of the whole body of greater than 150 rem (SDE); or

c. Exposure of the extremities of greater than 375 rem (SDE).

Notification of the NRC within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> is required for:

a. Exposure of the whole body of greater than 5 rem (TEDE); or

b. Exposure of the skin of the whole body of greater than 30 rem (SDE); or

c. Exposure of the extremities of greater than 75 rem (SDE).

o Assess the health consequences of all emergency exposures. Consult with a physician to determine the need for and extent of physical and biochemical examinations.

O Whole body greater than 25 rem (TEDE) should result in an examination of the exposed person by a physician.

o If internal exposure is suspected, quantitative measurements should be made as soon as reasonably feasible. Bioassays are required based on the following:

• Nasal smear or facial contamination greater than 1,000 cpm above background.

• Greater than 4 DAC-HRS in a day or less, or 20 DAC-HRS in a week or less.

EP-AD-000-125, Revision 9, Page 10 of 13

Tab 8 EP-PS-1 30-8 HEALTH PHYSICS AND ALARA CONSIDERATIONS DURING EMERGENCIES CHECKD 1.0 Evaluate radiological conditions.

1.1 Obtain detailed survey data to ascertain:

1.1.1 Beta-Gamma radiation levels 1.1.2 Need for neutron measurements 1.1.3 Contamination levels and protective clothing requirements 1.1.4 Airbome radioactive materials 1.1.5 Variability of conditions over space and time 1.2 Evaluate personnel status.

1.2.1 Determine available dose under normal administrative dose objectives.

- 1.2.2 If essential, obtain approval from RADIATION PROTECTION COORDINATORIEMERGENCY DIRECTOR for persons expected to exceed administrative objectives.

1.2.3 Follow criteria in PPL Emergency Personnel Dose Assessment and Protective Action Recommendation Guide when emergency exposures are deemed appropriate by EMERGENCY DIRECTOR.

1.2.4 Assess individual's history of exposure to airborne materials.

1.2.5 Assess individual's skills in relation to proposed task.

1.2.6 Assess individual's lifetime exposure history.

EP-AD-000-1 25, Revision 9, Page 11 of 13

Tab 8 EP-PS-130-8 HEALTH PHYSICS AND ALARA CONSIDERATIONS DURING EMERGENCIES CHECK 0 1.3 Determine proper type and placement of dosimeters.

1.3.1 Evaluate need for additional whole body dosimeters.

NOTE: For emergency exposures above 4 rem, the placement of several dosimeters on an Individual is recommended to determine spatial distribution of dose to the Individual.

1.3.2 Evaluate need and placement of extremity dosimeters.

1.3.3 Evaluate need for additional dosimetry devices such as high range self-reading dosimeters, electronic dosimeters, and neutron dosimeters.

1.3.4 Evaluate need for time keeping.

1.4 Determine proper respirator equipment required to perform task.

NOTE: For tasks expected to last more than several hours, consider need for relief of team members.

1.5 Review the following ALARA items:

NOTE: The detail and scope of ALARA reviews are to be commensurate with the magnitude of doses expected, numbers of people Involved, and urgency of required task.

1.5.1 Consider the trend of exposures vs. the importance of the task:

a. Important and critical task with rising exposure rates will require the dispatch of teams as quickly as possible to reduce exposures.

b. Unimportant or less critical task could be delayed until exposure rates begin to trend downward.

EP-AD-000-1 25, Revision 9, Page 12 of 13

Tab 8 EP-PS-1 30-8 HEALTH PHYSICS AND ALARA CONSIDERATIONS DURING EMERGENCIES CHECK O 1.5.2 When time permits the following should be included in the ALARA review:

a. Consider the use of remote handling devices or other special tools.

b. Consider the use of portable shielding.

c. Consider the need for mock-ups or other practice exercises.

d. Assess the number of people required to assure all have essential productive roles.

e. Consider the magnitude of doses received by team members in transit to work location.

EP-AD-000-125, Revision 9, Page 13 of 13

Tab 9 EP-PS-1 30-9 METNENT DATA ACQUISITION OPTIONS The following are sources of meteorological and ventilation data at Susquehanna SES:

A. ACQUISITION OF METNENT DATA FROM THE PICSY TERMINAL

1. From the SSES LOGO display, select E-PLAN MENU or type EPM and [ENTER].

2. All required meteorological and ventilation (METNENT) inputs for the MIDAS dose projections can be obtained by selecting the METNENT DATA display option on the E-PLAN menu.

a. Vent and Primary Met Tower Data is displayed on page 1 of this display.

b. Use the PAGE FORWARD command if the Back-up Tower data is required.

c. Should neither the Primary or Back-up Tower be available, obtain the Downriver Tower data as follows:

1) At the command line, type GD_VMS05B and [ENTER] for Downriver Tower wind speed.

2) At the command line, type GD.VMX09B and [ENTER] for Downriver Tower wind direction.

3) At the command line, type GDVMX1 OB and [ENTER].for Downriver Tower sigma theta.

4) Press Escape [ESC] to return to the SSES Logo display.

d. Other options - see Step 6 below.

3. If the Primary Met Tower AT data is not available, determine the wind speed corrected stability class as follows:

a. Determine the initial (uncorrected) stability class using the measured value of sigma theta and the Supplemental Meteorological Information Table 1 (or page 2 of the PICSY screen).

b. Determine the wind speed corrected stability classification using the initial classification, the measured wind speed, and, as appropriate, either Table 2 or Table 3.

EP-AD-OO0-1 24, Revision 21, Page 1 of 8

Tab 9 EP-PS-1 30-9

4. The PICSY QUALITY CODES for the display colors are as follows:

YELLOW: DATA ACCEPTABLE RED: DATA EXCEEDS WARNING LIMIT MAGENTA: DATA EXCEEDS ALARM SETPOINT WHITE: DATA SUSPECT

5. If a hard copy printout of the information is required you may either:

a. Select the PRINT option using the pull down menu (screen copy takes approximately 3 minutes to complete); or

b. Initiate the METNENT DATA LOG option as follows:

1) On the E-PLAN menu, select the FREE FORMAT LOG MENU.

2) To activate the TSC log, press [F11], [22], and [ENTER].

To activate the EOF log, press [F11, [9], and [ENTER].

NOTE: Be sure to read the log description because there are 2 logs for the TSC and 2 logs for the EOF.

3) The log will start printing at the next quarter hour.

4) To deactivate the TSC log, press [F3], [22], and [ENTER].

To deactivate the EOF log, press [F3], [9], and [ENTER].

6. If historical METNENT information is required, refer to the following instructions:

a. At the command line, type: GD._AMETVENT1 and [ENTER].

b. Group point display for that display file will come up. Press the (F3] key for history.

(See bottom of screen for F key menu.) A dialog box will appear.

c. The work file name to be used Is ARCHIVE.D, which is the default for that field.

d. Enter the desired retrieval time. Click on OK.

e. Group point display will return with values for the specified retrieval time.

f. Press the [F4] key to step through data points from the specified retrieval time to the current time.

NOTE: Not all desired data is likely to be available for any one particular point In time.

EP-AD-000-124, Revision 21, Page 2 of 8

Tab 9 EP-PS-1 30-9

g. Press the [F4] key If you want to step slowly through the data. Press the [F5S key if you want to step quickly through the data. (See bottom of screen for F key menu for more options.)

h. The group point display will return to real time when history is complete. A message at the top of the screen will alert you that it is returning to real time.

6. To exit the menu, select the [ESC] key.

B. Site-specific meteorological information can be obtained by contacting either ABS Consulting or the National Weather Service (NWS).

1. ABS Consulting ABS Consulting is the primary meteorological contractor for the Susquehanna Steam Electric Station (SSES). ABS Consulting has the ability to interrogate the primary and backup meteorological towers on a real-time basis and provide short and long-term weather forecasts for the site and surrounding area.

ABS Consultinq provides this emergency service to PPL ONLY during normal working hours. The SSES Project Manager's name, phone number and mailing address are as follows:

ABS Consulting Mark Abrams (301) 907-9100 (301) 921-2362 (Fax)

ABS Consulting Suite 200 4 Research Place Rockville, MD 20850 EP-AD-000-1 24, Revision 21, Page 3 of 8

Tab 9 EP-PS-1 30-9

2. NATIONAL WEATHER SERVICE The National Weather Service's (NWS) primary meteorological support responsibility for a radiological emergency at SSES resides with the NWS office at Binghamton, New York. In the event the Binghamton office is unable to provide this support, the designated backup is the NWS office In State College, Pennsylvania.

The role of the local NWS office is to provide weather information and forecasts in support of emergency response activities at SSES. The NWS can be consulted over the telephone if data interpretations, assessment, or forecasting assistance are needed.

This information will include the following:

• Forecasts at current time and 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> of:

a. 10-meter and 6O-meter wind speed and wind direction,_

b. Precipitation rate in inches per 15 minutes, and,

c. Boundary layer atmospheric stability described as STABLE, UNSTABLE, or NEUTRAL

• Estimates of current 10-meter and 60-meter wind speed and wind direction in the event of complete loss of onsite and offsite meteorological instrumentation. -

• General weather forecast from current time to 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> with special emphasis on significant weather occurrences such as major changes in wind speed, wind direction or synoptic weather patterns.

• Periodic weather updates at time intervals dictated by the on-going weather and emergency situation.

NOTE: The NWS should ONLY be contacted when meteorological support from ABS Consulting Is not available (i.e.. weekends. holidaVs, and during the overnight hours).

Whenever contacting the NWS, be sure to provide the following information:

• Name, Title, Facility, and Location

• Reason for the call

• Status of the Emergency

• Retum telephone number EP-AD-000-124, Revision 21, Page 4 of 8

Tab 9 EP-PS-130-9 The followina telephone numbers are UNLISTED and should onlv be used for EMERGENCY situations.

PRIMARY CONTACT NWS EMERGENCY METEOROLOGICAL SUPPORT OFFICE National Weather Service Office Binghamton Regional Airport 32 Dawes Drive Johnson City, NY 13795 (607) 798-6625 (607) 729-7629 (607) 798-6624 (Fax)

BACKUP CONTACT NWS EMERGENCY METEOROLOGICAL SUPPORT OFFICE National Weather Service Office 227 W. Beaver Avenue, Suite 402 State College, PA 16801 (814) 237-1152 (814) 237-1153 (814) 234-9703 (Fax)

EP-AD-000-1 24, Revision 21, Page 5 of 8

Tab 9 EP-PS-1 30-9 PLANT COMPUTER METEOROLOGICAL DATA POINT IDENTIFIERS METEOROLOGICAL T AVERAGING PARAMETER POINT ID* UNITS PERIOD PRIMARY TOWER - east of the plant, 300' high redhwhite tower.

1Om Wind Direction vmaO3 degrees 15 minutes 1Om Wind Speed vmaO6 mph 15 minutes Delta T NA vmaO1 0C/50m 15 minutes Delta T B vmaO2 0C/50m 15 minutes 60m Wind Direction vmaO4 degrees 15 minutes 60m Wind Speed vmaO7 mph 15 minutes 1Om Sigma Theta vma1O degrees 15 minutes 60m Sigma Theta vmx24 degrees 15 minutes Precipitation Rate vmaO9 in/hr 15 minutes Ambient Temperature vmtO8b OF1 hour BACKUP TOWER - across fromnthe SSES Learn ng Center.

Im Wind Direction vmaO5 degrees l 15 minutes 1Om Wind Speed vmaO8 mph 15 minutes 1Om Sigma Theta vma12 degrees j 15 minutes DOWNRIVER TOWER - on Route 93 ust east of Nescopeck.

10m Wind Direction vmxO9b degrees [ 2 minutes -

1Om Wind Speed vmsO5b mph l 2 minutes" 1Dm Sigma Theta vmx1Ob degrees 2 minutes**

• Letters are given here in lower case to differentiate the letter o from the number 0.

EP-AD-000-124, Revision 21, Page 6 of 8

Tab 9 EP-PS-1 30-9 SUPPLEMENTARY METEOROLOGICAL INFORMATION TABLES TABLE 1 ATMOSPHERIC STABILITY CLASSIFICATION Stability Class Delta (Afternate) Plume Width Temperature Sigma Theta @ 10 miles  % of Hrs at Code Title ( 0C150m) (degrees) (miles) SSES A Very Unstable _ -.95 >22.5 5.7 6 B Unstable -.94 to -.85 17.5 to 22.4 4.3 3 C Slightly Unstable -.84 to -.75 12.5 to 17.4 3.3 4 D Neutral -.74 to -.25 7.5 to 12.4 2.3 35 E Slightly Stable -.24 to .75 3.8 to 7.4 1.6 32 F Stable .76 to 2.0 2.1 to 3.7 1.1 12 G Very Stable >2.0 <2.1 .75 8 TABLE 2 TABtE 3 DAYTIME NIGHTTIME (08:00 to 18:00) (18:00 to 08:00)

Initial Stability Class/ FINAL Initial Stability Class/ FINAL Wind Speed (MPH) VALUE Wind Speed (MPH) VALUE A _ A Wind Speed < 7 A Wind Speed < 6 F 7 -Wind Speed < 9 B 6:SWind Speed < 8 E 9

• Wind Speed < 13 C Wind Speed 2 B D Wind Speed 2 13 D B . _ _ _ _ _

B B Wind Speed < 9 B Wind Speed <5 F 9 5 Wind Speed < 13 C 5

• Wind Speed < 7 E Wind Speed 213 D Wind Speed 2 7 D C C Wind Speed < 13 C Wind Speed < 5 E Wind Speed 2 13 D Wind Speed > 5 D D, E, F, G _ D Any wind speed. D Any wind speed. D E

Wind Speed < 11 E Wind Speed 211 D Example: If wind speed is 9 mph and sigma F,G theta is 18 degrees @ 10 a.m., the initial Wind Speed < 7 F stability class from Table 1 is 0B" and the wind speed corrected stability class from Table 2 is 7:SWind Speed < 11 E "Co. Wind Speed a 11 D EP-AD-000-124, Revision 21, Page 7 of 8

Tab 9 EP-PS-1 30-9 TABLE 4 WIND SECTORS AND DISTANCES Wind From Affected Affected EPB* On-Site Team Site Boundary  % of Hrs Sector Degrees Sector Sector Distance (ml) Distance (mi) Distance (ml) Affected SSES 348 -11 N S 0.34 0.25 0.38 6 12 -33 NNE SSW 0.34 0.37 0.39 9 34 - 56 NE SW 0.34 0.33 0.61 12 57 - 78 ENE WSW 0.34 0.39 1.22 11 79-101 E W 0.34 0.37 1.03 6 102- 123 ESE WNW 0.34 0.41 0.61 4 124 - 146 SE NW 0.34 0.35 0.66 4 147- 168 SSE NNW 0.34 0.29 0.59 4 169 -191 S N 0.34 0.29 0.59 5 192 - 213 SSW NNE 0.34 0.39 0.78 7 214-236 SW NE 0.34 0.42 -0.58 11 237 - 258 WSW ENE 0.34 0.52 0.49 7 259 - 281 W E 0.34 0.45 0.48 4 282 - 303 WNW ESE 0.34 0.18 0.50 3 304 - 326 NW SE 0.34 0.20 0.43 3 326 - 348 NNW SSE 0.34 0.20 0.41 5 1EPB distances established at Exclusion Area Boundary distance of 1800 ft.

EP-AD-000-1 24, Revision 21, Page 8 of 8

Tab 10 EP-PS-1 30-10 VENT MONITOR DATA ACQUISITION

1. Determine which Channel is alarming on the SPING Control Terminal.

2. Press [PRINT] 6 (ENTER] to obtain a printout of all channels in HI Alarm.

3. Determine Alarming Unit and Channel numbers from Printout.

DESCRIPTION l UNIT # DESCRIPTION J CHANNEL#

RB1 3 NOBLE GAS (LO) 5 RB2 4 NOBLE GAS (MID) 7 TBI 5 NOBLE GAS (HI) 9 SBGT 6 PAVSS N.G. (MID) 1 TB2 7 PAVSS N.G. (HI) 2 PAVSS TB1 8 PAVSS SBGT 9 PAVSS TB2 10

4. Obtain Noble Gas concentrations in gCVmin for each Alarming Unit and Channel as follows:

a. Press [HIST 10 MIN] UNIT # [-] CHANNEL # [ENTER].

b. Press [PRINT] [FILE] [ENTER].

c. Examine the last full 10-minute data period (next to last concentration value).

1. If LO range <2.2E 2 giCVcc, proceed to step 4d to obtain release rates in the gCVcc/min.

2. If LO range >2.2E 2 tiCVcc, repeat steps 4a and 4b using the MID range detector.

3. If MID range >7.8E' 1 g+/-Cicc, repeat steps 4a and 4b using the HI range detector.

d. After the concentration history file is printed out, press [-] to scroll to "RELEASE RATE" and press [ENTER]. Wait for the panel display to change, press [PRINT]

[FILE] [ENTER] to print corresponding release rates in iACiminute.

e. Repeat steps 4a through 4d for all alarming noble gas channels.

5. Sum the release rates for Noble Gas channels in alarm and use this value for the MIDAS dose calculations.

EP-AD-000-183, Revision 6, Page 1 of 1

Tab 11 EP-PS-1 30-11 MIDAS OPERATING PROCEDURE TABLE OF CONTENTS SECTION PAGE A. INTRODUCTION/SYSTEM STARTUP 2 B. MENU B: FORWARD CALCULATIONS 4 C. MENU C: EVENT TREE NUREG-1228 CALCULATIONS 10 D. MENU D: DEFAULT ACCIDENT CALCULATIONS 14 E. MENU E-W: BACK CALCULATIONS 17 F. MENU G: BLOWOUT PANEL CALCULATIONS 23 G. DESCRIPTION OF INFORMATION PROVIDED ON THE MIDAS DOSE

SUMMARY

REPORT 29 H. INFORMATION FOR DISTANCES BETWEEN 10 AND 50 MILES 33 I. ACCIDENT DESCRIPTIONS 34 EP-AD-000-1 12, Revision 21, Page 1 of 40

Tab 11 EP-PS-1 30-11 A. INTRODUCTIONISYSTEM STARTUP

1. The following conventions are used in this procedure to describe computer operations:

a. Bold, upper case text (i.e., CURRENT DATE), denotes text which appears on the screen.

b. Underlined, uppercase text (i.e., LOGIN) denotes text to be typed.

c. Bracketed, upper case text (i.e., [ENTER]), denotes special keys which are to be pressed.

d. Most mouse selections can be made with a single click.

• Single click RESET to cancel previous screen-selections.

• Double click RESET to back out of present menu.

• Double click to EXIT menu.

2. The met and vent spreadsheet will appear with all of the meteorological and ventilation release rate parameters across the top of the page. The current time period is highlighted in the left-hand column. The first time interval is 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> before the current time and the last time interval is 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> after the current time.

3. All required meteorological and ventilation data for MIDAS can be obtained using the MET/VENT DATA ACQUISITION OPTIONS tab.

4. To start MIDAS on a DOS computer:

a. Tum ON each component (monitor, computer, and printer) of the computer system on which MIDAS is loaded.

b. At the MIDAS logon screen, enter the password MIDAS and [ENTER].

c. At the MIDAS MAIN MENU screen, select A: MIDAS (Dose Calculator) and [ENTER].

d. The system will then display the CURRENT DATE. If the date is correct, press [ENTER]. If this date is incorrect, type the correct date using the format which is illustrated in the prompt and press [ENTER].

e. The system will then display the CURRENT TIME, which is stored in the computer system's clock (24-hour clock format). If the time is correct, press [ENTER]. If this time is incorrect, type the correct time using the format which is illustrated in the prompt and press [ENTER].

EP-AD-000-1 12, Revision 21, Page 2 of 40

Tab 11 EP-PS-1 30-11

f. The MIDAS logon screen will now appear for 20 seconds.

9. The ACCIDENT MENU SELECTION screen will appear. Select the appropriate calculation option and CONFIRM your selection.

5. To exit MIDAS on a DOS computer, double-click EXIT on each menu screen that appears. At the SECURITY MENU, press [F8] to log off.

6. To start MIDAS on a Windows computer:

a. Turn on each component (monitor, computer, and printer) of the computer system on which MIDAS is loaded.

b. At the WINDOWS LOGIN Screen, press [CANCEL].

c. On the System Desktop, double click on the MIDAS Icon.

d. The system will then display the CURRENT DATE. If the date is correct, press [ENTER]. If the date is incorrect, type the correct date using the format which is illustrated in the prompt and press [ENTER].

e. The system will then display the CURRENT TIME, which is stored in the computer system's clock (24-hour clock format). If the date is correct, press [ENTER]. If the date is incorrect, type the correct time using the format which is illustrated in the prompt and press IENTER].

f. The MIDAS logon screen will now appear for a short time.

9. The ACCIDENT MENU SELECTION screen will appear. Select the appropriate calculation option and CONFIRM your selection.

7. To exit MIDAS on a Windows computer, double-clock EXIT on each menu screen that appears until you return to the System Desktop.

a. On the System Desktop, select START, SHUTDOWN, SHUTDOWN THE COMPUTER, and press [YES].

EP-AD-000-1 12, Revision 21, Page 3 of 40

Tab 11 EP-PS-130-1 1 B. MENU B: FORWARD CALCULATIONS REQUIRED INPUTS ENGINEERING OR OPERATIONS SUPPORT IS REQUESTED FOR THESE CALCULATIONS.

PLANT CONDITIONS

• TIME OF REACTOR SHUTDOWN RELEASE START TIME DURATION OF RELEASE

• PROJECTION TIME

• ACCIDENT SOURCE TERM SELECTION MET DATA 10 M WIND SPEED 10 M WIND DIRECTION STABILITY CLASS

• PRECIPITATION RATE VENT DATA

• SITE TOTAL NOBLE GAS RELEASE RATES

• SITE TOTAL 1-131 RELEASE RATES (if available from Chemistry or as directed by RPC/DASU)

• SITE TOTAL PARTICULATE RELEASE RATES (if available from Chemistry or as directed by RPC/DASU)

1. The METNVENT DATA CONTROL TABLE screen will appear.

a. Select START NEW SCENARIO and then CONFIRM, OR

b. If you have already initiated calculations and wish to modify either the existing met spreadsheet file or vent spreadsheet, select CURRENT SCENARIO EDIT and CONFIRM.

NOTE: CURRENT SCENARIO EDIT will include releases/doses from previous time steps, if applicable.

c. Other options are available in the lower right hand section of the display if you wish to RESET or change your initial selection or EXIT the screen.

EP-AD-000-1 12, Revision 21, Page 4 of 40

Tab 11 EP-PS-1 30-11

2. The METEOROLOGICAL DATA spreadsheet will appear with all of the required meteorological parameters across the top of the page. Place the cursor on the data period corresponding to the start of release. Input the following met data:

NOTE 1: If the met data remains the same for successive time periods, the operator need only enter the met data once. MIDAS will persist the data to future time periods automatically.

NOTE 2: If a value is to be repeated in a field it can still be manually copied down the spreadsheet using the K (copy last) key while that value is highlighted.

a. In the column labeled 10M SPD, enter the wind speed from the 10 meter onsite (primary) meteorological tower in MILES PER HOUR (MPH).

NOTE: If the primary meteorological tower-data is not available, refer to the Met Vent Data Acquisition Options tab for other options.

If the primary meteorological tower wind speed remains at Nzerou during freezing and/or other inclement weather, that data point is likely invalid, and the backup tower wind speed should be used if available.

b. In the column labeled IOM WD, enter the wind direction from the 10-meter onsite (primary) meteorological tower in DEGREES FROM (DEG FM).

c. In the column labeled STAB CLS, enter the actual value for AT in DEGREES CENTIGRADE (preferred method) or the wind speed corrected stability class (Letter Code) if the primary tower data is not available. MIDAS will convert the letter entry to a numerical value.

d. In the column labeled RAIN-LMH, enter the precipitation rate in INCHES PER 15 MINUTES (IN15M). Divide the PICSY precipitation rate (inches/hr) by 4. If the precipitation rate is not available, estimation may be made by using the following table:

NO PRECIPITATION Q(zero)

DRIZZLE or MIST LIGHT STEADY RAIN MEDIUM HEAVY DOWNPOUR l HEAVY I

e. Type X when all data has been entered to save-the data and exit out of the meteorological spreadsheet.

EP-AD-000-1 12, Revision 21, Page 5 of 40

Tab 11 EP-PS-1 30-11

3. A WEATHER SELECTION screen will appear if any of the meteorological data inputs are missing from the spreadsheet.

a. If this screen appears, select RESET until you have returned to the MET/VENT DATA CONTROL TABLE screen.

b. Select CURRENT SCENARIO EDIT and enter any missing meteorological values on the spreadsheet.

C. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

4. The vent (GASEOUS VENT AND FLOW) spreadsheet will appear next. Enter current vent data. The data entry for each 15-minute period is as follows:

NOTE: Vent data may be entered in a regular numerical presentation (10000) or in scientific notation (1.OE+04).

a. In the column labeled TOT NG RELEASE, enter the site total noble gas release rate in pCi/min.

b. In the column labeled TOT 1-131 RELEASE, enter the site total 1-131 release rate in ILCi/min. Unless valid data is available from Chemistry or data is authorized for use by the RPC/DASU, the 1-131 release rate should be calculated as follows:

TOT NG RELEASE (gCi/min)/1 000 = TOT 1-131 RELEASE (glCi/min)

c. In the column labeled TOT P RELEASE, enter the site total particulate release rate in jiCi/min. Unless valid data is available from Chemistry or data is authorized for use by the RPCIDASU, the particulate release rate should be calculated as follows:

TOT NG RELEASE (gCl/min)/10,000 = TOT P RELEASE (glCi/min)

d. When the data entry is complete, press the X key to save the information and exit the spreadsheet EP-AD-000-1 12, Revision 21, Page 6 of 40

Tab 11 EP-PS-1 30-11

5. From the ACCIDENT SOURCE TERM SELECTION screen, select an appropriate accident source term, then CONFIRM. Select RESET if you wish to change your previous selection.

If no specific information on the type of release is available from Engineering, use the following as a guide in the selection of appropriate accident source term.

a. Obtain Reactor Power from Engineering, Operations, or as follows:

1) From PICSY, select Unit #1 or Unit #2 formats to view affected unit.

2) Type STA and press [ENTER].

3) "Reactor Power" is in the top left section.

4) Click on MET VENT to return to the Met/ent data display.

b. If the reactor is operating at or greater than 10% power, select the ATWS source term.

c. If reactor power is at less than 10%, select the LOCA (Clad Failure) source term.

d. If conditions indicate a fuel handling incident and a release from the refueling floor (Reactor Building floor 818'), select Fuel Handling Accident.

6. The RELEASE TIMING SELECTION screen will appear next. There are three lines to the screen.

a. On Line 1, select TRIP DATE (date and time of reactor trip). Using the calendar wheel, enter the appropriate date and time of reactor trip.

CONFIRM to close the calendar wheel.

1) The time of reactor trip must be equal to or earlier than the START OF RELEASE.

2) The time of reactor trip can be set up to roughly one year (8,190 hours0.0022 days <br />0.0528 hours <br />3.141534e-4 weeks <br />7.2295e-5 months <br />) prior to the START OF RELEASE.

EP-AD-000-1 12, Revision 21, Page 7 of 40

Tab 11 EP-PS-130-1 1 NOTE (1): MIDAS assumes the reactor must be shutdown before a release can occur. The TRIP DATE triggers the start of decay for the accident mix.

NOTE (2): Even during an ATWS, where a release is in progress and the reactor has not shut down, a TRIP DATE must be entered to run MIDAS. It is recommended the same date and time for the START OF RELEASE be used for the TRIP DATE. Entering a date and time for reactor trip has no impact on decay of the ATWS mix.

b. On Line 2, select START OF RELEASE. Using the calendar wheel, enter the appropriate date and time of the start of release. CONFIRM to close the calendar wheel.

1) If START NEW SCENARIO was selected,he START OF RELEASE date/time entered should be the current date/time at which you are starting the calculation.

2) If CURRENT SCENARIO EDIT was selected, the previously entered START OF RELEASE should still be used, if met/vent date have been entered for each 15-minute period since that START OF RELEASE. Otherwise, select RESET until START NEW SCENARIO is selected.

NOTE: The START OF RELEASE is defined as the date and time of the first vent data entry.

c. On Line 3, select REMAINING DURATION of the release. Using the numpad enter the duration of release, in minutes, and select EN or press

[ENTER] to close the numpad. If the duration of release is not known, use the default of 360 minutes.

NOTE: The REMAINING DURATION (DURATION OF RELEASE) can use forecasted or persisted data for up to 16 hours1.851852e-4 days <br />0.00444 hours <br />2.645503e-5 weeks <br />6.088e-6 months <br /> into the future.

d. Select CONFIRM to continue with the calculation or RESET to change any of your previous choices.

EP-AD-000-1 12, Revision 21, Page 8 of 40

Tab 11 EP-PS-1 30-11

7. The PPL

SUMMARY

DATA SELECTION screen allows the user to select different options for the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET.

a. Select the projection time from the left-hand column if other than the default of six hours is needed.

NOTE: The 0.25-hour projection time should be used with extreme caution. Projected doses can be substantially underestimated.

b. Select the PEAK SECTOR dose rate option; then CONFIRM. If you wish to change any of your previous choices, select RESET.

NOTE: The PEAK SECTOR is used to determine the highest dose rate in all 16 sectors. The alternate selection (CURRENT AFFECTED SECTOR) is applicable-only when estimated dose rates from the current release period alone are requested by the RPC/DASU.

8. After the calculations have completed, the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET will be displayed on the screen.

a. If you want to select a different projection time or sector designation from the PPL

SUMMARY

DATA SELECTION screen, select RESTART REPORT.

b. If you wish to view additional report options, select CONTINUE and, on the next page, MORE REPORTS.

c. If you wish to continue with the next calculation, double click EXIT. This will return you to the ACCIDENT MENU SELECTION screen where the dose calculation process can be repeated using updated input values.

d. If a hard copy is desired of any printout or plot displayed on the screen, press [PRINT SCRN].

NOTE: If a hard-copy printout is made of the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET, be sure to fill in the required information documenting the name of the dose calculator and approver.

EP-AD-000-1 12, Revision 21, Page 9 of 40

Tab 11 EP-PS-1 30-11 C. MENU C: EVENT TREE NUREG-1228 CALCULATIONS REQUIRED INPUTS ENGINEERING OR OPERATIONS SUPPORT IS REQUESTED FOR THESE CALCULATIONS.

PLANT CONDITIONS

• RELEASE PATHWAY

• CORE CONDITION, INCLUDING PERCENT OF CLAD FAILURE OR FUEL MELT

• CONTAINMENT CONDITIONS

• FILTRATION

• PROJECTION TIME MET DATA

• 10 M WIND SPEED

• 10 M WIND DIRECTION

• STABILITY CLASS

• PRECIPITATION RATE

1. The EVENT TREE NUREG-1228 SELECTION screen will appear.

a. Using information provided by Engineering Support or Operations, select one cell in each row of the menu. When a cell in the current row is selected, the next row then appears.

NOTE: Event tree menu selections, which include a definition of plant release parameters, are included (Section I) for each NUREG-1228 accident release scenario.

b. Using information provided by Engineering Support, select percent clad failure or percent fuel melt as follows:

(1) Left-click on percent clad failure (fuel melt).

(2) Using the numpad on the screen, input the percent clad failure (fuel melt) provided by Engineering Support, the EN (ENTER).

(3) CONFIRM your entry if correct. If incorrect, re-perform steps (1) and (2).

c. CONFIRM entries to continue with the calculation or RESET if you wish to change any of your selections. You may also double-click EXIT to return to the ACCIDENT MENU SELECTION screen.

EP-AD-000-1 12, Revision 21, Page 10 of 40

Tab 11 EP-PS-130-1 1

2. The MET/VENT DATA CONTROL TABLE screen will appear.

a. Select START NEW SCENARIO and then CONFIRM.

b. Other options are available in the lower right hand section of the display if you wish to RESET your initial entries or EXIT the screen.

3. The METEOROLOGICAL DATA spreadsheet will appear with all of the required meteorological parameters across the top of the page.

NOTE: Ensure met data is entered for the current time. MIDAS will persist the data to future time periods automatically.

a. In the column labeled 1DM SPD, enter the wind speed from the 10-meter onsite (primary) meteorological tower in MILES PER HOUR (MPH).

NOTE: If the primary meteorological tower data is not available, refer to the Met Vent Data Acquisition Options tab for other options.

If the primary meteorological tower wind speed remains at

"'zero' during freezing and/or other inclement weather, that data point is likely invalid, and the backup tower wind speed should be used if available.

b. In the column labeled 1DM WD, enter the wind direction from the 10-meter onsite (primary) meteorological tower in DEGREES FROM (DEG FM).

c. In the column labeled STAB CLS, enter the actual value for AT in DEGREES CENTIGRADE (preferred method) or the wind speed corrected stability class (Letter Code) if the primary tower data is not available. MIDAS will convert the letter entry to a numerical value.

d. In the column labeled RAIN-LMH, enter the precipitation rate in INCHES PER 15 MINUTES (IN/I5M). Divide the PICSY precipitation rate (inches/hr) by 4. If the precipitation rate is not available, estimation may be made by using the following table:

NO PRECIPITATION 2(zero)

DRIZZLE or MIST LIGHT STEADY RAIN MEDIUM HEAVY DOWNPOUR HEAVY EP-AD-000-1 12, Revision 21, Page 11 of 40

Tab 11 EP-PS-1 30-11

e. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

4. A WEATHER SELECTION screen will appear if any of the meteorological data inputs are missing from the spreadsheet

a. If this screen appears, select RESET until you have returned to the METNENT DATA CONTROL TABLE screen.

b. Select CURRENT SCENARIO EDIT and enter any missing meteorological values on the spreadsheet.

c. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

5. The PPL

SUMMARY

DATA SELECTION screen allows the user to select different options for the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET.

a. Select the projection time from the left-hand column if other than the default of six hours is needed.

NOTE: The 1-hour projection time should be used with caution.

Projected doses can be underestimated.

b. Select the PEAK SECTOR dose rate option; then CONFIRM. If you wish to change any of your previous choices, select RESET.

NOTE: The PEAK SECTOR is used to determine the highest dose rate in all 16 sectors. The alternate selection (CURRENT AFFECTED SECTOR) is applicable only when estimated dose rates from the current release period alone are requested by the RPCIDASU.

6. After the calculations have completed, the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET will be displayed on the screen.

a. If you want to select a different projection time or sector designation from the PPL

SUMMARY

DATA SELECTION screen, select RESTART PROGRAM.

b. If you wish to view additional report options, select CONTINUE and, on the next page, MORE REPORTS.

c. If you wish to continue with the next calculation, double click EXIT. This will return you to the ACCIDENT MENU SELECTION screen where the dose calculation process can be repeated using updated input values.

EP-AD-000-1 12, Revision 21, Page 12 of 40

Tab 11 EP-PS-1 30-11

d. If a hard copy is desired of any printout or plot displayed on the screen, press [PRINT SCRN].

NOTE (1): If a hard-copy printout is made of the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET, be sure to fill in the required information documenting the name of the dose calculator and approver.

NOTE (2): Engineering Support or Operations concurrence with the selections may be documented by their representatives' signatures on the printout.

EP-AD-000-1 12, Revision 21, Page 13 of 40

Tab 1 1 EP-PS-1 30-11 D. MENU D: DEFAULT ACCIDENT CALCULATIONS REQUIRED INPUTS ENGINEERING OR OPERATIONS SUPPORT IS REQUESTED FOR THESE CALCULATIONS.

MET DATA

• 10 M WIND SPEED

• 10 M WIND DIRECTION

• STABILITY CLASS

• PRECIPITATION RATE SOURCE TERM

• ACCIDENT SOURCE TERM SELECTION

• PERCENT OF CLAD FAILURE OR FUEL MELT

• PROJECTION TIME

1. The METNENT DATA CONTROL TABLE screen will appear.

a. Select START NEW SCENARIO and then CONFIRM.

b. Other options are available in the lower right hand section of the display if you wish to RESET your initial entries or EXIT the screen.

2. The METEOROLOGICAL DATA spreadsheet will appear with all of the required meteorological parameters across the top of the page.

NOTE: Ensure met data is entered for the current time. MIDAS will persist the data to future time periods automatically.

a. In the column labeled 10M SPD, enter the wind speed from the 10-meter onsite (primary) meteorological tower in MILES PER HOUR (MPH).

NOTE: If the primary meteorological tower data is not available, refer to the Met Vent Data Acquisition Options tab for other options.

If the primary meteorological tower wind speed remains at "zero" during freezing andlor other inclement weather, that data point is likely invalid, and the backup tower wind speed should be used if available.

EP-AD-000-1 12, Revision 21, Page 14 of 40

Tab 11 EP-PS-130-1 1

b. In the column labeled 1OM WD, enter the wind direction from the 10-meter onsite (primary) meteorological tower in DEGREES FROM (DEG FM).

C. In the column labeled STAB CLS, enter the actual value for AT in DEGREES CENTIGRADE (preferred method) or the wind speed corrected stability class (Letter Code) if the primary tower data is not available. MIDAS will convert the letter entry to a numerical value.

d. In the column labeled RAIN-LMH, enter the precipitation rate in INCHES PER 15 MINUTES (IN/15M). Divide the PICSY precipitation rate (inches/hr) by 4. If the precipitation rate is not available, estimation may be made by using the following table:

NO PRECIPITATION l(zero)

DRIZZLE or MIST LIGHT STEADY RAIN MEDIUM HEAVY DOWNPOUR HEAVY

e. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

3. A WEATHER SELECTION screen will appear if any of the meteorological data inputs are missing from the spreadsheet.

a. If this screen appears, select RESET until you have returned to the METNENT DATA CONTROL TABLE screen.

b. Select CURRENT SCENARIO EDIT and enter any missing meteorological values on the spreadsheet.

c. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

4. From the ACCIDENT SOURCE TERM SELECTION screen, select an appropriate accident source term, then CONFIRM.

5. A PERCENT FAILURE FOR LOCA screen will appear if the clad failure or fuel melt accident source term is selected. Input the percent of clad failure or fuel melt using the numpad and CONFIRM.

EP-AD-000-1 12, Revision 21, Page 15 of 40

Tab 11 EP-PS-130-1 1

6. The PPL

SUMMARY

DATA SELECTION screen allows the user to select different options for the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET.

a. Select the projection time from the left-hand column if other than the default of six hours is needed.

NOTE: The 1-hour projection time should be used with caution.

Projected doses can be underestimated.

b. Select the PEAK SECTOR dose rate option; then CONFIRM. If you wish to change any of your previous choices, select RESET.

NOTE: The PEAK SECTOR is used to determine the highest dose rate in all 16 sectors. The alternate selection (CURRENT AFFECTED SECTOR) is applicable only when estimated dose rates from the current release-perod alone are requested by the RPC/DASU.

7. After the calculations have completed, the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET will be displayed on the screen.

a. If you want to select a different projection time or sector designation from the PPL

SUMMARY

DATA SELECTION screen, select RESTART PROGRAM.

b. If you wish to view additional report options, select CONTINUE and, on the next page, MORE REPORTS.

c. If you wish to continue with the next calculation, double click EXIT. This will return you to the ACCIDENT MENU SELECTION screen where the dose calculation process can be repeated using updated input values.

d. If a hard copy is desired of any printout or plot displayed on the screen, press [PRINT SCRN].

NOTE: If a hard-copy printout is made of the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET, be sure to fill in the required information documenting the name of the dose calculator and approver.

EP-AD-000-1 12, Revision 21, Page 16 of 40

Tab 11 EP-PS-130-1 1 E. MENU E-W: BACK CALCULATIONS REQUIRED INPUTS ENGINEERING OR OPERATIONS SUPPORT IS REQUESTED FOR THESE CALCULATIONS.

PLANT CONDITIONS TIME OF REACTOR SHUTDOWN RELEASE START TIME

• DURATION OF RELEASE

• ACCIDENT SOURCE TERM SELECTION

• PROJECTION TIME MET DATA

• 10 M WIND SPEED

• 10 M WIND DIRECTION

• STABILITY CLASS

• PRECIPITATION RATE FIELD DATA 3 FT (CW) SURVEY METER READING

• DISTANCE FROM PLANT

• IODINE CARTRIDGE NET CPM, IODINE CONCENTRATION IgCi/cc, OR DEFAULT IODINE MIX

1. The METNENT DATA CONTROL TABLE screen will appear.

a. Select START NEW SCENARIO and then CONFIRM.

b. If you have already initiated calculations and wish to modify the existing met spreadsheet file, select CURRENT SCENARIO EDIT and CONFIRM.

C. Other options are available in the lower right hand section of the display if you wish to RESET your initial entries or EXIT the screen.

EP-AD-000-1 12, Revision 21, Page 17 of 40

Tab 11 EP-PS-1 30-11

2. The METEOROLOGICAL DATA spreadsheet will appear with all of the required meteorological parameters across the top of the page.

NOTE: Ensure met data is entered for the current time. MIDAS will persist the data to future time periods automatically.

a. In the column labeled IOM SPD, enter the wind speed from the 10-meter onsite (primary) meteorological tower in MILES PER HOUR (MPH).

NOTE: If the primary meteorological tower data is not available, refer to the Met Vent Data Acquisition Options tab for other options.

If the primary meteorological tower wind speed remains at uzeroW during freezing and/or other inclement weather, that data point is likely invalid, and the backup tower wind speed should be used if available.

b. In the column labeled 1M WD, enter the wind direction from the 10-meter onsite (primary) meteorological tower in DEGREES FROM (DEG FM).

c. In the column labeled STAB CLS, enter the actual value for AT in DEGREES CENTIGRADE (preferred method) or the wind speed corrected stability class (Letter Code) if the primary tower data is not available. MIDAS will convert the letter entry to a numerical value.

d. In the column labeled RAIN-LMH, enter the precipitation rate in INCHES PER 15 MINUTES (IN/I15M). Divide the PICSY precipitation rate (inches/hr) by 4. If the precipitation rate is not available, estimation may be made by using the following table:

NO PRECIPITATION 2(zero)

DRIZZLE or MIST LIGHT STEADY RAIN MEDIUM HEAVY DOWNPOUR HfEAVY

e. Type A when all data has been entered to save the data and exit out of the meteorological spreadsheet.

EP-AD-000-1 12, Revision 21, Page 18 of 40

Tab 11 EP-PS-1 30-11

3. A WEATHER SELECTION screen will appear if any of the meteorological data inputs are missing from the spreadsheet.

a. If this screen appears, select RESET until you have returned to the METNENT DATA CONTROL TABLE screen.

b. Select CURRENT SCENARIO EDIT and enter any missing meteorological values on the spreadsheet.

c. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

4. From the ACCIDENT SOURCE TERM SELECTION screen, select an appropriate accident source term, then CONFIRM.

If no specific information on the type of release is available-from Engineering, use the following as a guide in the selection of an appropriate accident source term:

a. Obtain Reactor Power from Engineering, Operations, or as follows:

1) From PICSY, select Unit #1 or Unit #2 formats to view affected unit.

2) Type STA and press [ENTER].

3) "Reactor Power" is in the top left section.

4) Click on MET VENT to return to the Met/ent data display.

b. If the reactor is operating at or greater than 10% power, select the ATWS source term.

c. If reactor power is at less than 10%, select the LOCA (Clad Failure) source term.

d. If conditions indicate a fuel handling incident and a release from the refueling floor (Reactor Building floor 818'), select Fuel Handling Accident.

EP-AD-000-1 12, Revision 21, Page 19 of 40

Tab 11 EP-PS-1 30-11

5. The next screen is the FIELD MONITOR PARAMETER SELECTION screen.

Select the appropriate cells and input the information requested using the numpad on the screen or enter the data using the computer keyboard. Once the data entry is complete, CONFIRM to continue with the calculation.

a. Enter Field Team or ERMS Fixed Monitor gamma (EDE) dose rate whichever is appropriate.

b. Enter the distance of the Field Team or Fixed Monitor from the plant as noted on the RMS Report or for the on-site team as noted on Table 4 of EP-AD-000-124.

c. If iodine air sample data is available, enter either the IODINE CARTRIDGE reading in net counts per minute or an IODINE CONCENTRATION value in igCi/cc. A zero (0) value may be entered for the net count per minute or ILCicc measurementf indicated.

d. If iodine data is not available, select the DEFAULT MIX option to characterize the iodine source term.

6. On the RELEASE TIMING SELECTION screen, enter the estimated remaining duration for the release, then CONFIRM. If the duration of release is not known, use the default of 360 minutes.

7. The PPL

SUMMARY

DATA SELECTION screen allows the user to select different options for the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET.

a. Select the projection time from the left-hand column if other than the default of six hours is needed.

NOTE: The 1-hour projection time should be used with caution.

Projected doses can be underestimated.

b. Select the PEAK SECTOR dose rate option; then CONFIRM. If you wish to change any of your previous choices, select RESET.

NOTE: The PEAK SECTOR is used to determine the highest dose rate in all 16 sectors. The alternate selection (CURRENT AFFECTED SECTOR) is applicable only when estimated dose rates from the current release period alone are requested by the RPC/DASU.

EP-AD-000-1 12, Revision 21, Page 20 of 40

Tab 11 EP-PS-130-1 1

8. After the calculations have completed, the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET will be displayed on the screen.

a. If you want to select a different projection time or sector designation from the PPL

SUMMARY

DATA SELECTION screen, select RESTART PROGRAM.

b. If you wish to view additional report options, select CONTINUE and, on the next page, MORE REPORTS.

c. If you wish to continue with the next calculation, double click EXIT. This will return you to the ACCIDENT MENU SELECTION screen where the dose calculation process can be repeated using updated input values.

d. If a hard copy is desired of any printout or plot displayed on the screen, press [PRINT SCRN].

NOTE: If a hard-copy printout is made of the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET, be sure to fill in the required information documenting the name of the dose calculator and approver.

e. Remote Monitoring System perimeter monitoring location dose rates can be displayed by MIDAS using the perimeter monitoring dose rate screen option.

NOTE: The displayed values are only numeric dose estimates based on MIDAS calculations. They are not "real-time" readings from the perimeter monitor system.

Directions for accessing the MIDAS perimeter monitor dose rate screen option are as follows:

1) At the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET screen, select CONTINUE.

2) On the next screen select MORE REPORTS.

3) From the MORE REPORTS SELECTION screen, select FM GAMMA DOSE RATE PLOT and CONFIRM.

4) From the REPORT PARAMETER SELECTION screen, choose the appropriate projection time and CONFIRM.

5) From the MAP SELECTION screen, select MAP SCALE and input 1.25 miles, then CONFIRM.

EP-AD-000-1 12, Revision 21, Page 21 of 40

Tab 11 EP-PS-1 30-11

6) On the next screen, select MAP FEATURES.

7) On the next screen, select CALCULATED PERIMETER MON DOSE RATES and CONFIRM.

8) To exit, select CONTINUE, MORE REPORTS, and EXIT.

EP-AD-000-1 12, Revision 21, Page 22 of 40

Tab 11 EP-PS-1 30-11 F. MENU G: BLOWOUT PANEL CALCULATIONS REQUIRED INPUTS ENGINEERING OR OPERATIONS SUPPORT IS REQUESTED FOR THESE CALCULATIONS.

PLANT CONDITIONS

• TIME OF REACTOR SHUTDOWN

• RELEASE START TIME

• PROJECTION TIME BLOWOUT PANEL ASSUMED TO HAVE LIFTED (RELEASE PATHWAY)

CORE CONDITION, INCLUDING PERCENT OF CLAD FAILURE OR CORE MELT MET DATA

• 10 MWIND SPEED

• 10 M WIND DIRECTION

• STABILITY CLASS

• PRECIPITATION RATE

1. The METNENT DATA CONTROL TABLE screen will appear.

a. Select START NEW SCENARIO and then CONFIRM, OR

b. If you have already initiated calculations and wish to modify the existing met spreadsheet file, select CURRENT SCENARIO-EDIT and CONFIRM.

NOTE: CURRENT SCENARIO EDIT will include releases/doses from previous time steps, if applicable.

c. Other options are available in the lower right hand section of the display if you wish to RESET or change your initial selection or EXIT the screen.

EP-AD-000-1 12, Revision 21, Page 23 of 40

Tab 11 EP-PS-130-1 1

2. The METEOROLOGICAL DATA spreadsheet will appear with all of the required meteorological parameters across the top of the page. Place the cursor on the data period corresponding to the start of release. Input the following met data:

NOTE 1: If the met data remains the same for successive time periods, the operator need only enter the met data once. MIDAS will persist the data to future time periods automatically.

NOTE 2: If a value is to be repeated in a field it can still be manually copied down the spreadsheet using the K (copy last) key while that value is highlighted.

a. In the column labeled 1OM SPD, enter the wind speed from the 10 meter onsite (primary) meteorological tower in MILES PER HOUR (MPH).

NOTE: If the primary meteorological tower-data is not available, refer to the Met Vent Data Acquisition Options tab for other options.

If the primary meteorological tower wind speed remains at "zero" during freezing and/or other inclement weather, that data point is likely invalid, and the backup tower wind speed should be used if available.

b. In the column labeled IOM WD, enter the wind ditection from the 10-meter onsite (primary) meteorological tower in DEGREES FROM (DEG FM).

c. In the column labeled STAB CLS, enter the actual value for AT in DEGREES CENTIGRADE (preferred method) or the wind speed corrected stability class (Letter Code) if the primary tower data is not available. MIDAS will convert the letter entry to a numerical value.

d. In the column labeled RAIN-LMH, enter the precipitation rate in INCHES PER 15 MINUTES (IN115M). Divide the PICSY precipitation rate (inches/hr) by 4. If the precipitation rate is not available, estimation may be made by using the following table:

NO PRECIPITATION l(zero)

DRIZZLE or MIST LIGHT STEADY RAIN MEDIUM HEAVY DOWNPOUR I HEAVY I

e. Type X when all data has been entered to save the data and exit out of the meteorological spreadsheet.

EP-AD-000-1 12, Revision 21, Page 24 of 40

Tab 11 EP-PS-1 30-11

3. The BLOWOUT PANEL SELECTION screen will appear.

NOTE: Blowout panel locations are shown on Figure 1 of this procedure tab.

a. Using information provided by Engineering Support or Operations, select one cell in each row of the menu. When a cell in the current row is selected, the next row then appears.

b. CONFIRM entries to continue with the calculation or RESET if you wish to change any of your selections. You may also double-click EXIT to return to the ACCIDENT MENU SELECTION screen.

c. On the PERCENT CLAD FAILURE (or PERCENT FUEL MELT) screen, using information provided by Engineering Support, select percent clad failure or percent fuel melt as follows:

(1) Left-click on percent clad failure (fuel melt).

(2) Using the numpad on the screen, input the percent clad failure (fuel melt) provided by Engineering Support, then EN (ENTER).

(3) CONFIRM your entry if correct. If incorrect, re-perform steps (1) and (2).

NOTE: Release rates used by MIDAS are those shown in Table 1 of this procedure tab, multiplied by the percent clad failure (fuel melt) entered, expressed as a fraction (e.g., the multiplier for 50% fuel melt would be 0.5).

4. A WEATHER SELECTION screen will appear if any of the meteorological data inputs are missing from the spreadsheet

a. Missing information will be indicated by a black box (with white lettering) in the left-hand column.

(1) Left-click on the black box in the left column.

(2) Using the numpad on the screen, input the response to the missing data.

(3) Repeat steps (1) and (2) to supply any other required information.

(4) CONFIRM your entry if correct. If incorrect, re-perform steps (1) and (2) for the data in error.

EP-AD-000-1 12, Revision 21, Page 25 of 40

Tab 11 EP-PS-1 30-11

5. The PPL

SUMMARY

DATA SELECTION screen allows the user to select different options for the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET.

a. Select the projection time from the left-hand column if other than the default of six hours is needed.

NOTE: The 0.25-hour projection time should be used with extreme caution. Projected doses can be substantially underestimated.

b. Select the PEAK SECTOR dose rate option; then CONFIRM. If you wish to change any of your previous choices, select RESET.

NOTE: The PEAK SECTOR is used to determine the highest dose rate in all 16 sectors. The alternate selection (CURRENT AFFECTED SECTOR) is applicable-only when estimated dose rates from the current release period alone are requested by the RPC/DASU.

6. After the calculations have completed, the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET will be displayed on the screen.

a. If you want to select a different projection time or sector designation from the PPL

SUMMARY

DATA SELECTION screen, select RESTART PROGRAM.

b. If you wish to view additional report options, select CONTINUE and, on the next page, MORE REPORTS.

c. If you wish to continue with the next calculation, double click EXIT. This will return you to the ACCIDENT MENU SELECTION screen where the dose calculation process can be repeated using updated input values.

d. If a hard copy is desired of any printout or plot displayed on the screen, press [PRINT SCRN].

NOTE: If a hard-copy printout is made of the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET, be sure to fill in the required information documenting the name of the dose calculator and approver.

EP-AD-000-1 12, Revision 21, Page 26 of 40

Tab 11 EP-PS-1 30-11 FIGURE 1 SSES BLOWOUT PANEL LOCATIONS FAA~ ~ uu 160M MAgai ZI~

T AE44EL U2 TURBINE TURBINE BUILDING JILDING

'r WF. F a~ +'; 77 11 :e E .': - ' 'L

'Pt I 3 5'~~~.~~ONTROL *~-: L J .. ~~~

~~~~~  ;*

Em.::':':

S 1..;:-.e

!7N U26 1 1 1~W~ E1RR00RHR HR na E LTUNNEL ACCESS M._ NO HIGH ENERGY PIPING EP-AD-00O-1 12, Revision 21, Page 27 of 40

Tab 11 EP-PS-1 30-11 TABLE I EVALUATION OF UNMONITORED RELEASES FROM STATION BLOWOUT PANELS DIRECTIONS

1. Select the appropriate station blowout panel location.

2. Select an appropriate accident source term mix.

3. Use the corresponding design base release rates for input into MENU B.

4. Enter the release rates for one (1) fifteen-minute time period.

NOTE: If Clad Failure or Fuel Melt mixes are selected, multiply the site total noble gas, 1-131, and particulate release rates by the appropriate fraction of clad failure or fuel melt prior to entering the values onto the vent spreadsheet (e.g., the multiplier for 50% FUEL MELT would be 0.5).

1 1 BLOWOUT PANEL LOCATION 131 DESIGN BASIS (SITE TOTAL) RELEASE RATES

_ NOBLE GAS 1-131 PARTICULATE RCIC PUMP ROOM (jcjimin) (WCImin) (WCi/min)

[2 1ACCIDENT SOURCE TERM Normal Reactor Coolant Activity 1.2E+02* 1.8E+02 1.1 E+03 (LOCA) Reactor Depressurization-No FD 2.6E+06 8.4E+04 2.2E+04 (LOCA) 100% Clad Failure 2.IE+09 2.4E+08 9.1E+07 (LOCA) 100% Fuel Melt 4.3E+10 1.3E+09 1.7E+09 HPCI PUMP ROOM (jCilmin) (pCi/min) l (pCi/min)

Normal Reactor Coolant Activity 2.1E+03* l 3.2E+03 l 1.9E+04 (LOCA) Reactor Depressurization-No FD 4.6E+07 1.5E+06 3.8E+05 (LOCA) 100% Clad Failure 3.7E+10 4.3E+09 1.6E+09 (LOCA) 100% Fuel Melt 7.5E+1 I 2.3E+10 3.OE+10 HPCIRCIC ROUTING AREA (lCimin) (pCimin) I (iiCi/min)

Normal Reactor Coolant Activity 3.2E+03* 4.9E+03 2.9E+04 (LOCA) Reactor Depressurization-No FD 7.OE+07 2.2E+06 5.8E+05 (LOCA) 100% Clad Failure 5.7E+10 6.5E+09 2.4E+09 (LOCA) 100% Fuel Melt 1.1E+12 3.5E+10 4.6E+10 RWCU PENETRATION ROOM (liCilmin) (pCI/min) (PCi/min)

Normal Reactor Coolant Activity 7.3E+03* 5.8E+03 6.6E+04 (LOCA) Reactor Depressurization-No FD 1.6E+08 2.6E+06 1.3E+06 (LOCA) 100% Clad Failure 1.3E+1 1 7.6E+09 5.5E+09 (LOCA) 100% Fuel Melt 2.6E+12 4.1E+10 1.0E+11 RB/TB MAIN STEAM TUNNEL (pCimin) (pCi/min) (pCi/min)

Normal Reactor Coolant Activity J 2.6E+04* 3.9E+04 2.3E+05 (LOCA) Reactor Depressurization-No FD 5.6E+08 1.8E+07 4.7E+06 (LOCA) 100% Clad Failure 4.6E+11= 5.2E+10 1.9E+10 (LOCA) 100% Fuel Melt 9.IE+12 2.8E+11 3.7E+11 FD = FUEL DAMAGE

• Value less than the TRM limit for noble gas release rate.

REFERENCE:

EC-RADN-1018, Evaluation of Unmonitored Releases from Station Blowout Panels, Revision 1, File R2-1.

EP-AD-000-1 12, Revision 21, Page 28 of 40

Tab 11 EP-PS-1 30-11 G. DESCRIPTION OF INFORMATION PROVIDED ON THE MIDAS DOSE ASSESSMENT

SUMMARY

SHEET

1. CALCULATION TYPE Menu option chosen for the calculation. Examples are Forward Calculation or Event Tree Calculation.

2. CURRENT TIME PERIOD Current meteorological time period used for dose projections provided on quarter hour increments to match met spreadsheet entries.

3. WEATHER CONDITIONS Meteorological data (wind speed, wind direction, affectedsector, stability class,.

and precipitation rate) used for the summary report dose projections.

4. REACTOR SHUTDOWN TIME Date and time of reactor shutdown.

5. RELEASE START TIME This is the date and time of first dose calculation as indicated by the first positive vent release rate value entered on the vent data spreadsheet or if the vent spreadsheet is not used, the date and time of the calculation..

NOTE: For MENU C: EVENT TREE NUREG-1228 CALCULATIONS, MENU D: DEFAULT CALCULATIONS, and MENU E-W: BACK CALCULATIONS, it is conservatively assumed that the date and time of reactor shutdown is concurrent with the start of release.

6. PROJECTION TIME This is the time X hours into the future, starting from the beginning of the current meteorological time period. WXis the number of hours the user chooses as the projection time (e.g., 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />).

7. REMAINING DURATION This is the remaining duration of the release for the calculation type chosen. For Event Tree calculations, that is always 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and for Blowout Panel calculations, 0.25 hours2.893519e-4 days <br />0.00694 hours <br />4.133598e-5 weeks <br />9.5125e-6 months <br />.

EP-AD-000-1 12, Revision 21, Page 29 of 40

Tab 11 EP-PS-1 30-11 S. SOURCE TERM (for Forward and Back Calculations)

Identifies the source term used for the current dose projection summary report calculations. Choice of six options:

• ATWS-Normal Reactor Coolant Activity (UNDECAYED)

• Normal Reactor Coolant Activity (DECAYED)

• (LOCA) Coolant Activity Leak with Depressurization Spike-No Fuel Damage

• (LOCA) Cladding Failure-Gap Release

• (LOCA) Fuel Melt-Early In-Vessel Release

• Fuel Handling Accident

9. RELEASE CONDITIONS This section lists the release rates used in the calculation. The values are taken from user input for Forward calculations, inferred from user input of event conditions (Event Tree, Default, and Blowout Panel calculations, or inferred from user input of measured data in the field (Back calculations).

10. Content of this section varies by Calculation Type. The objective is to provide information about the assumptions used to infer the Release Conditions for the calculation or to provide additional information about the Release Conditions.

For Forward Calculations, isotopic release ratios are provided. These may be compared to default ratios and used to infer plant conditions, for example, status of filtration.

For Event Tree, Default, and Blowout Panel Calculations-, event or default conditions are listed. From those conditions, Release Conditions are inferred.

For Back Calculations, measured field data are listed. From those data, Release Conditions are inferred.

11. DOSE RATE PROJECTIONS This table provides the TEDE, EDE, and THYROID CDE dose rates calculated at the OSCAR and EPB distances. These rate calculations are based on a variable projection/integration period for the current affected sector or peak sector (the usual user selection).

EP-AD-000-1 12, Revision 21, Page 30 of 40

Tab 11 EP-PS-1 30-11

12. INTEGRATED DOSE PROJECTIONS This table provides a TEDE and THYROID CDE dose projection calculated at the EPB, 2-mile, and 10-mile distances for varying projection times. The projection time will appear in the header line e.g., 4 HOUR INTEGRATED DOSE PROJECTION. The sector designation for this dose projection is based on the maximum calculated dose determined from all sixteen sectors for the given projection time (peak sector option, usually the user's choice) or the calculated dose for the current affected sector. Information for distances between 10 and 50 miles is available using the "More Reports" feature.

13. PERFORMEDIAPPROVED The sign-off for calculation results is done for documentation purposes. The intended "approval" does not necessarily mean an independent verification of each input to the calculation but more an interactive discussion between the RPC/HP Level II Dose Calculator and/or DASU/DAST (or dose calculator) to ensure the calculated results are reasonable based on current plant and environmental information.

This sign-off process should occur before the calculated results are used for any emergency classification determinations or protective action recommendations.

EP-AD-000-1 12, Revision 21, Page 31 of 40

Tab 11 EP-PS-130-1 1 O~~~lm* 4WI3~~~*

• - - I~~~~~~~~~~~~~~~1 EP-AD-00O-1 12, Revision 21, Page 32 of 40

Tab 11 EP-PS-1 30-11 H. INFORMATION FOR DISTANCES BETWEEN 10 AND 50 MILES

1. From the MIDAS DOSE ASSESSMENT

SUMMARY

SHEET screen, select CONTINUE and, on the next page, MORE REPORTS.

2. Select TEDE 4-DAY DOSE REPORT or THYROID CDE DOSE REPORT, depending on which PAR guide has been exceeded at the 10-mile distance.

3. On the REPORT PARAMETER SELECTION screen, select PROJECTION TIME until the appropriate PROJECTION TIME (0.25, 4, 6, or 9 hours1.041667e-4 days <br />0.0025 hours <br />1.488095e-5 weeks <br />3.4245e-6 months <br />) is displayed on the screen; then select CONFIRM.

NOTE: The 0.25-hour projection time should be used with extreme caution. Projected doses can be substantially underestimated.

4. The screen will now display projected doses at the EPB and at 2, 5,10, 25, and 50 miles. To obtain finer increments of distance, select CONTINUE until the desired range of distances is displayed.

NOTE: An objective is to determine the approximate distance from the plant at which dose projections are less than I rem TEDE and 5 rem THYROID CDE. A PAR is then likely to be issued to the next furthest 5-mile distance increment from the plant Example: A PAR for distances to 30 miles may be selected if projected doses become less than the PAG values (1 rem TEDE, 5 rem THYROID CDE) between 25 and 30 miles from the plant.

EP-AD-000-1 12, Revision 21, Page 33 of 40

Tab 11 EP-PS-1 30-11 ACCIDENT DESCRIPTIONS DEFAULT ACCIDENT DESCRIPTIONS (MENU B AND MENU D)

1. NORMAL REACTOR COOLANT ACTIVITY This accident scenario is defined as the release of reactor coolant system liquid and steam activity from the primary coolant system with no damage to the fuel and no activity spiking. The source term for this accident is normal reactor coolant system liquid and steam activity.

2. LOCA (RX DP-NO FD)

This accident scenario is defined as the release of reactor coolant system liquid and steam activity from the primary coolant system. Depressurization of the primary coolant system is assumed, resulting in an activity spike in the reactor coolant. The source term for this accident is normal reactor coolant liquid and steam activity plus the depressurization activity spike. There is no fuel damage.

3. LOCA (CLAD FAILURE)

This accident scenario is defined as a Loss-of-Coolant Accident which results in damage to the reactor fuel cladding. The source term for this accident is hornal reactor coolant liquid and steam activity and a percentage of the activity iri the fuel clad gap. For Menu D calculations, that percentage is entered as part of the calculation process. For Menu B calculations, the valid vent data entered define the severity of the event.

4. LOCA (FUEL MELT)

This accident scenario is defined as a Loss-of-Coolant Accident which results in damage to the reactor fuel. The source term for this accident is normal reactor coolant liquid and steam activity and a percentage of the activity in the reactor fuel. For Menu D calculations, that percentage is entered as part of the calculation process. For Menu B calculations, the valid vent data entered define the severity of the event.

5. FUEL HANDLING ACCIDENT This accident scenario is defined as a fuel handling accident which results in the release of spent fuel activity. The source term for this accident is spent fuel gap activity assuming a decay time after shutdown of 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

EP-AD-000-1 12, Revision 21, Page 34 of 40

Tab 11 EP-PS-1 30-11

6. ATWS This accident scenario is used for releases from a reactor unit continuing to operate at or greater than 10% power. The source term for this accident is normal reactor coolant system liquid and steam activity. The source term is undecayed; that is, no reactor trip is assumed to have occurred.

NOTE (1): For Menu D calculations, design basis assumptions are utilized.

For example, design basis leakage rates are assumed and iodine filtration efficiency of 99% is assumed in those pathways for which filters are in place.

NOTE (2): The source term for Menu D accident types is fixed. Release rate is calculated by MIDAS by dividing the total activity released by a predetermined release duration (6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> for all but fuel handling accidents, for which release duration is 2 heurs). -

NUREG 1228 EVENT TREE ACCIDENT TYPES (MENU C)

1. LOCA - DRYWELL RELEASE This accident is a Loss-of-Coolant Accident with an activity release into the drywell which bypasses the suppression pool for which filtration of activity by the Standby Gas Treatment System takes place before release to the environment

2. LOCA - WETWELL RELEASE This accident is a Loss-of-Coolant Accident with an activity release through the suppression pool for which filtration of activity by the Standby Gas Treatment System takes place before release to the environment.

3. LOCA - CONTAINMENT BYPASS RELEASE This accident is a Loss-of-Coolant Accident with an activity release to the environment that bypasses the containment and the Standby Gas Treatment System.

4. ZiRCALLOY FIRE IN ONE THREE MONTH OLD BATCH This accident is a zircalloy fire in spent fuel that results in an activity release similar to a core melt. It assumes that the activity is filtered by the Standby Gas Treatment System prior to release.

EP-AD-000-1 12, Revision 21, Page 35 of 40

Tab 11 EP-PS-1 30-11

5. SPENT FUEL GAP RELEASE This accident is a release of fuel gap activity from the spent fuel pool with treatment by the Standby Gas Treatment System prior to release.

NOTE: Menu C (from NUREG-1 228 Event Tree Analyses) is used to relatively quickly provide a bounding estimate of offsite dose, for situations where there are substantial uncertainties in prediction of source term and any resultant doses.

EP-AD-000-1 12, Revision 21, Page 36 of 40

Tab 11 EP-PS-1 30-11 NUREG 1228 MENU STRUCTURE FOR DRYWELL RELEASE DRYWELL RELEASE WETWELL RELEASE

] CONTAINMENT BYPASS RELEASE SPENT FUEL POOL RELEASE (Clad Failure) (Fuel Melt) (Fuel Melt) Core Condition GAP RELEASE IN-VESSEL VESSEL MELT UNCOVERED SEVERE THROUGH 15-30 MIN DAMAGE UNCOVERED

>30MIN SPRAY ON SPRAY OFF Status of Drywell Containment Spray HOLDUP TIME HOLDUP TIME HOLDUP TIME Drywell Holdup Time:

<1 HOUR 2-12 HOURS 24 HOURS lime from Release CATASTROPHIC DELAYED CONTAINMENT (DEFAULT) RELEASE into Containment to Start of Release into FAILURE Environment(')

LEAK RATE LEAK RATE LEAK RATE DESIGN DESIGN LEAK RATE 100%/DAY 100%/DAY LEAK RAT E I LEAK RATE 100%/HOUR UNFILTERED FILTERED UNFILTERI FILTERED Catastrophic Failure to Isolate Containment 1%/Day Containment Failure

') HOLDUP TIME is defined as'drywell holdup time prior to release to the environment During this time period, credit is taken for drywell airborne activity removal due to plateout by natural processes and water sprays prior to release to the environment.

EP-AD-000-1 12, Revision 21, Page 37 of 40

Tab 11 EP-PS-1 30-11 NUREG 1228 MENU STRUCTURE FOR WETWELL RELEASE CONTAINMENT DRYWELL WETWELL SPENT FUEL BYPASS RELEASE RELEASE POOL RELEASE RELEASE (Clad Failure) (Fuel Melt) (Fuel Melt) Core Condition GAP RELEASE IN-VESSEL VESSEL MELT UNCOVERED SEVERE THROUGH 15-30 MIN DAMAGE UNCOVERED

> 30 MIN I SATURATED [ SUB-COOLED Conditions in Suppression Pool HOLDUP TIME HOLDUP TIME HOLDUP TIME' Wetwell Holdup Time:

<1 HOUR 2-12 HOURS 24 HOURS Time from Release CATASTROPHIC DELAYED (DEFAULT) RELEASE into Wetwell to Start CONTAINMENT of Release into FAILURE Environment(')

LEAK RATE LEAK RATE - LEAK RATE DESIGN DESIGN 100%/HOUR 100%1DAY 100%/DAY LEAK RATE LEAK RATE UNFILTERED FILTERED UNFILTERED FILTERED Catastrophic Failure to Isolate Containment 1%/Day Containment Failure (1) HOLDUP TIME is defined as wetwell holdup time prior to release to the environment.

During this time period, credit is taken for wetwell airborne activity removal due to plateout by natural processes and water sprays prior to release to the environment EP-AD-000-1 12, Revision 21, Page 38 of 40

Tab 11 EP-PS-1 30-11 NUREG 1228 MENU STRUCTURE FOR CONTAINMENT BYPASS RELEASE DRYWELL RELEASE

[ WETWELL RELEASE CONTAINMENT BYPASS SPENT FUEL POOL RELEASE RELEASE (Clad Failure) (Fuel Melt) (Fuel Melt) Core Condition GAP RELEASE IN-VESSEL VESSEL MELT UNCOVERED SEVERE THROUGH 15-30 MIN DAMAGE UNCOVERED

> 30 MIN I

UNFILTERED I FILTERED I Is Release Filtered?

r RELEASE RATE RELEASE RATE TYPICAL DESIGN Release Rate, in 100%/HOUR 100%/DAY RELEASE RATE Terms of Percent of Core Inventory Catastrophic Failure to Isolate 1%/Day Containment Failure Containment EP-AD-000-1 12, Revision 21, Page 39 of 40

Tab 11 EP-PS-130-11 NUREG 1228 MENU STRUCTURE FOR SPENT FUEL POOL RELEASE WE1WELL CONTAINMENT SPENT FUEL RELEASE RELEASE POOL RELEASE ZIRCALLOY FIRE GAP RELEASE GAP RELEASE Condition of Spent IN ONE 3 MONTH FROM ONE FROM 15 Fuel OLD BATCH 3 MONTH OLD BATCHES I I BATCH (TOTAL POOL)

SPRAY OFF Status of Containment Spray (Default) into Pool HOLDUP TIME Time from Release

<1 HOUR from Fuel to Start of Release into CATASTROPHIC Environment()

FAILURE OF REACTOR BUILDING LEAK RATE LEAK RATE LEAK RATE Release Rate, in 100%/HOUR 100%/DAY 100%/DAY Terms of Percent of UNFILTERED FILTERED Source Inventory Catastrophic Failure of Secondary Containment (1) HOLDUP TIME for a spent fuel pool release is defined as reactor building holdup time prior to release to the environment. During this time period, credit is taken for reactor building airborne activity removal due to plateout by natural processes and water sprays prior to release to the environment.

EP-AD-000-1 12, Revision 21, Page 40 of 40

Tab 15 EP-PS-1 30-15 REMOTE MONITORING SYSTEM BASE STATION INSTRUCTIONS 1.0 Perform RMS Setup/Operational Check prior to initiating field monitoring.

NOTE: For RMS keyboard command reference, see RMS Keyboard Commands included within this tab.

1.1 On the RMS terminal, open the panel located above the keyboard and rotate the power switch (first knob, right side) to the ON position.

1.2 Select the Area Monitor Coverage Screen using [v-] and [ENTER].

1.3 Input BASE for the requested user name, then [ENTER].

1.4 Input STATION for the requested password, then [ENTER].

1.5 If Mobile Survey Plot screen does not appear, select I1l to bring up the Mobile Survey Plot (MSP).

1.6 Select [S] to display the System Summary Screen.

1.7 Verify RMS operability.

1.7.1 If each available Fixed and Remote Monitor reading displayed on the System Summary Screen is being updated approximately every 10 seconds, RMS is considered to be fully functional. Utilize Tab B instructions and the attached RMS Monitoring Strategy (flowchart).

1.7.2 If all of the Fixed and Remote Monitors shown on the System Summary Screen are NOT being updated (i.e., there is no incoming radiological telemetry), then go to Tab A, Step 5a.

1.8 Depress [11 key to restore the MSP screen.

2.0 Implement RMS Monitoring Strategy in accordance with the flowchart on the following page.

EP-AD-000-098, Revision 5,Page 1of 4

Tab 15 EP-PS-130-15 lCear. Off~lie RMS MONITORING STRATEGY IGray-Onlne lYelfw = Release In progress 1) Hit the esoce barl to sience alar, IRed- Site Amea Emergncy select the OSCAR Iodine channel Note 1: Alarms may occur at multiple locations. To determine status of IMegents General Emerigency and then (AL] Iq to cler OSCARs alarms, access Event Log [EJ. Use [1] to return to MSPS.

II Iodine source check alrm. Clear all INote: See RMS F esumment ld I thre OSCAR chane asOSCAR L- Gftrfs fo RMS A lbve8 the Gatehouse are.

_ _ _ 2) the oetmad centelne to kdentf Before next traverse, [Alt (C each channel for team locate he hest ead Fixed I Monitor. Ino

3) From MSPS, use [pa up] or (pag down) keys to display affected Fixed Monitor.

4) Use arrow keys [-1 or [4-] to select larming Fixed Monitor. >4-

5) HnIFAI toproduca masry data repoat, then LAlt)F] to prdnt hM primary end secondary dat reposts.

5) Hlt (Escl o return to MSPS.

7) Give printed report to TSC Does Calculator.

See Note i for multiple alarms.

Continue MonlStrabev:

- Track doseof field team members.

When Pume Is Located:

- Consider dose extensions.

- Continue dredti OSCAR and other teems to - Utilie ALARA to minimize dose.

trver the plune as - Track CDE Iodine and TEDE when directed byTSC Dose Calculator via form In

1) Nottfy TSC Dose Calculator.

• Use (At (C] before each TAB 2of EP4PS-134 (HP Radioman).

teans nex traverse of

-F,

2) At completion of traverse. hit (F41. the plume and ensure all - Consider resiatory protection for OSCAR.

then [Alt] (PI to print report RMS Chennels for that tean are reset pior to lls

3) Give printed report to the TSC next traverse.

Dose Calculator. Contact TSC Dose Calculator to:

After Omw Is eharaclerized.

consult TSC Dose Calculalm Re-evaluae monior Stregy and necessity

4) Hit eecs] to return display to to determine necessity of of additional OSCAR traverses and affected MSPS. addItional traverses. area measurements by other NWeld leams.

OR See Note i for mulliple alarms.

Discontiue monitoring with OSCAR and have OSCAR retrnb to her dispatch location.

Have other teems report to County Decontamination Center and then the EOF.

EP-AD-000-098, Revision 5, Page 2 of 4

i:

Tab 15 EP-PS-1 30-15 RMS FIELD MEASUREMENT GUIDELINES SITE AREA GENERAL I RELEASE I EMERGENCY EMERGENCY RMS mrem/hr GAMMA DOSE RATE: z.i 1100 1000 CHILD THYROID CDE DOSE RATE: 1634 I5000 FRISKER net cam AIR SAMPLE (CARTRIDGE): I iooj 16001 160001 i

Notify TSC Dose Calculator ASAP I IMMEDIATE I IIMMEbIATE I MAGENTA DATA: Indicates the need for immediate consideration of (last column) field team protective actions.

EP-AD-000-098, Revision 5, Page 3 of 4

Tab 15 EP-PS-1 30-15 RMS KEYBOARD COMMANDS

-Select a Key M i F2 I FS] I F 9i luff] PrtSlk F7 ~~~ 4IS 4j I

~~~USEnhanced lI Pau I Keyboad l~~~ I I 11 IML i

t 2 a al _I l I Na J24 it 4I2 A I I II A IS 4jIJ5 Shift Z L Shift I 2 3

< ~~1 Al I I <' >l J I

[SJ: System Summary Screen

[EJ: View Event Log

[11: Display MSP from Main Menu Return to MSP from Event Log

[4-], [J, [J, [1e: Move Cursor (left, up, down, right) to select displayed radiological telemetry

[ENTER]: Inputs command I selection

[PAGE UP]: Pages Up Through System Formats

[PAGE DOWN]: Pages Down Through. System Formats

[ALT] [Z]: Zoom MSP Maps In and Out

[SPACE BAR]: Silences Alarm

[F4]: Generate Report

[ALT] [PI: Print Generated Report

[ESC]: Previous Screen

[ALT] [C]: Clears Trail off MSP for channel selected

[F8]: Transfers display source from EOF to TSC EP-AD-000-098, Revision 5, Page 4 of 4