ML20071P956

Rev 1 to FNP-0-ETP-4338, Svc Water Storage Pond Sounding Survey

ML20071P956
Person / Time
Site:	Farley
Issue date:	06/15/1994
From:	SOUTHERN NUCLEAR OPERATING CO.
To:
Shared Package
ML20071P955	List: ML20071P951 ML20071P956 ML20071Q283 ML20071Q305 ML20071Q315 ML20071Q334 ML20071Q355 ML20071Q360 ML20071Q366 ML20071Q375 ML20071Q387 ML20071Q403
References
FNP--ETP-4338, FNP-0-ETP-4338, NUDOCS 9408100272
Download: ML20071P956 (11)

Text

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I FNP-0-ETP-4338 June 15, 1994 g

Revision 1 FARLEY NUCLEAR PLANT ENGINEERING TECHNICAL PROCEDURE FNP-0-ETP-4338 s.

S.

A F

E T

Y SERVICE WATER STORAGE POND SOUNDING SURVEY O

L A

T E

D UNCONTROLLED COPY CAUTION: reme.,namatana

-- Approved:

Current. Do not uae in a Safety Related Activity.

MC

' Systems Perfbraance Manager

'I b

Date Issued:

SP DEC/ETP-162/16

+ UNCCNTR0tfJED COPY O

CAUTtON: This Copyis g

not maintained current.

Do Not use in Safety Retetod ActMty.

9408100272 940729 PDR ADOCK 05000348 F

PDR L

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d SYSTEMS PERFORMANCE TEST RESULTS

SUMMARY

REPORT Section I Test Description

Title:

Service Water Storage Pond Sounding Survey Procedure Number:

FNP-0-ETP-4338 Revision Number:

1 Start Date:

Completion Date:

Section II Test Results, Evaluation and Recomendations C

Test satisfactory (test results recomended for approval)

C Test unsatisfactory (explain below, as needed)

O All data sheets.and other test data are attached.

U All test data steps and data sheets have been coupleted and signed off.

C Otlar disposition as recomunended below.

q Remarks:

s I

Performed By:

Date:

Section III Systems Performance Supervisor's Review i

Comments:

]

i l

Approved:

Date:

O i

The provisions of'FNP-0-AP-24 are not applicable.

SP ETP-162/26 Rev. 0

r

9?pp, n -

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LIST OF EFFECTIVE PAGES 4 ~~

e FNP-0-ETP-4330 REVISION NO.

PAGE NO.

0 1

2 3

4 5

6 7

8 9

10 1

X X

2 X

X 3

X X

4 X

a i

FIGURE 1 X

1 Data Sheet 1 e

1 X

X

~ t 2

X X

Data Sheet 2 1

X X

l l

1 i

i 1

i DEC ETP 162/18 Page 1 of 1

. mgrpy+. m -

c 7

j N "" '

FNP-0-ETP-4338 FARLEY NUCLEAR PLANT

~x ENGINEERING TECHNICAL PROCEDURE j,

q_)

FNP-0-ETP-4338 SERVICE WATER STORAGE POND SOUNDING SURVEY 1.0 Purpose This procedure specifies the survey technique required to obtain data for the purpose of calculating the volume and surface area of the service water pond.

Provisions of FNP-0-AP-24 are not applicable.

2.0 Acceptance criteria 2.1 The Data recorded is reviewed on-site to ensure that the service water pond has been j-adequately covered and that the data is j

properly transferred to diskette.

Otherwise, no quantitative acceptance criteria exist.

l t

2.2 IF scour is indicated under the river water makeup concrete structure, the manager of Nuclear Maintenance Support at Southern 1

(~

Nuclear should be contacted for an engineering evaluation of the condition.

3.0 References 3.1 Delnorte Model 540, Microwave Distance Measuring Unit Operating Instructions.

3.2 Innerspace Fathometer Operating Instructions.

4.0 Test Equipment, Special Tools and. Materials.

~

4.1 De1norte Model 540 Microwave Distance-Measuring Unit (DMU) to be supplied by PGTS-Civil.

4.2 Hewlett Packard, 200 series,' computer to be supplied by PGTS-Civil.

4.3 Innerspace Fathometer to be supplied by l

PGTS-Civil.

PGTS 5.0 Precautions and I-icitations a

5.1 Unable to sound at water depth of 2.4 feet and under due to size of equipment.

O 1

SP DEC/ETP-162/16 Rev. 1

.j g g...c FNP-0-ETP-4338 5.2 Approval of the Test Supervisor is required prior to performing procedure sections or.

O steps out of sequential order..LSupervisor approval shall be documented on the data sheet..

,, t 5.3 IF a procedural step that required documentation.is purposely not performed, and is not required, THEN "N/A" (Not Applicable)

I shall be entered in the sign-off space.

IP-the procedure or controlling work order does not provide specific instructions for "not

-i' applicable" steps, THEN the Test Supervisor will N/A the step not performed, document in j

the-margin by the step the reason; for: the - step l

being not applicable, and provide his-signature and the date.

5.4 Steps of the procedure with a designator (described below) in the left margin denote r'

the requirement for the individual-performing the step to provide his signature and date on the data sheet.

'i 5.4.1 Designator PGTS, APCO Power Generation Se'rvices.

1 5.4.2 Designator SP, Systems Performance.

SP/PGTS 6.0 Prerequisites and Initial Conditions 6.1 PGTS-Civil has coordinated work-through the j

General Manager of Nuclear Support at Southern Nuclear.

6.2 Performance of this procedure has been, j

scheduled.by FNP-SP.-

}

6.3 Permission has been obtained from the Shift Supervisor to perform this procedure.

7. 0, Instructions 7.1 Calibration PGTS 7.1:1 Calibrat4 the fathometer,-using a

{

1ead line. check at-approximately 15 feet deep.

j PGTS 7.1.2 Calibrate the distance measuring unit.

7.2 Testing PGTS-7.2.1 Visually inspect the das and; record

[

results on Data Sheet 2.

()

2 Rev.'l SP DEC/ETP-162/16 a.

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--r-

l 3

FNP-0-ETP-4338 7.2.2 Determine if scour or erosion is occurring around or under the edges

(

of the concrete slab of the SW Pond N

river water makeup structure as shown on Figure 1.

Using a rigid rod (such as an 8 foot long section of #6 rebar or 1/2" pipe) probe around the edges of both sides of the 23' - 6" section of concrete slab.

With the pond level at 185 feet, scour is indicated if the probe can be immersed more than 2 feet into the water without contacting the soil or if any portion of the bottom of the 23' - 6" slab can be detected.- If scour is indicated, note the location, depth and extent on Data Sheet 2.

PGTS 7.2.3 Run level survey to determine the I

storage pond water elevation and record on Data Sheet 1.

PGTS 7.2.4 Input preprogrammed sounding line l

coordinates to the computer and begin r

sounding survey.

PGTS 7.2.5 Survey the dike area with sounding l

l lines located 20 feet apart.

)

PGTS 7.2.6 Survey the slough area with sounding l

2 lines located 20 feet apart.

PGTS 7.2.7 Survey the main body area with l

sounding linea located 50 feet apart.

Acceptance Criteria:

Sounding is acceptable if (a.) a minimum of 90% of the sounding lines are sounded and (b.) two consecutive sounding lines are not missed.

7.2.8 IF the acceptance criteria was met, l

THEN proceed to Step 7.2.9.

7.2.9 IP the acceptance criteria (a.)

l and/or (b.) was NOT met, THEN resound until (a.) and (b.).are met (not to exceed 5 resounds).

PGTS 7.2.10 Check the storage pond elevation, by l

survey, a minimum of once every 5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br /> (a minimum of 2 rechecks each work day).

3 SP DEC/ETP-162/16 Rev. 1

i FNP-0-ETP-4338 PGTS 7.2.11 Calibrate the distance measuring unit l

at the end of each work day (3 days i

O typically required to complete l

sounding).

PGTS 7.2.12 IF the distance measuring unit l

calibration error check exceeds 10 feet, THEN recalibrate the distance measuring unit.

PGTS 7.2.13 Calibrate the fathometer at the end l

of the job.

8.0 Restoration I

PGTS 8.1.

Remove all equipment from the pond area.

SP 8.2 Notify the Shift Supervisor that the job is complete.

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4 SP DEC/ETP-162/16 Rev. 1 l

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FNP-0-ETP-4338 Data Sheet 1 Sounding Survey for the service water Storage Pond Step Description Signature /Date 5.0 Precautions and Limitations read PGTS

/

and understood 6.0 Prerequisites and initial PGTS

/

conditions completed / satisfied SP

/.

7.1.1 Calibrate the fathometer PGTS

/

7.1.2 Calibrate the distance PGTS

/

measuring unit I

7.2.1 Dam inspected and results PGTS

/

recorded on Data Sheet 2 r

7.2.2 River Water makeup structure PGTS

/

checked for scour and results recorded on Data Sheet 2.

7.2.3 Storage Pond Elevation l

Elev.

Time PGTS

/

7.2.4 Input programs:

PGTS

/

l

)

-FAR SC1 FAR L3 I

~

FAR L1 FAR L4

~

FAR_L2

~

7.2.5 Survey the dike area PGTS

/

l i

7.2.6 Survey the slough area PGTS

/

l 7.2.7 Survey the main body of water, PGTS

/

l Acceptance Criteria:

Sounding is acceptable if (a.) a minimum of 90% of the sounding lines are sounded and (b.) two consecutive sounding lines are J

not missed.

Remarks:

O DEC ETP-162/17 Rev. 1 I

FNP-0-ETP-4338 Sheet 2 of-2 4

Data Sheet 1 l

Sounding Survey for the i

Service Water Storage Pond O

Step Description Signature /Date 7.2.10 Survey pond elevation Elev.

Time PGTS

/

l Elev.

Time PGTS

/

7.2.11 Calibrate the distance (Day 1) PGTS

/

l measuring unit at the (Day 2) PGTS

/

i end of the work day (Day 3) PGTS

/

7.2.12 Calibrate the distance PGTS

/

measuring unit if error exceeds 10 feet i

7.2.13 Calibrate the fathometer PGTS

/

at the end of the job.

l 8.1 Remove all equipment PGTS

/

8.2 Notify Shift Supervisor SP

/

of job completion l

Remarks:

DEC ETP-162/17 Rev. 1 j

I

i.

ree.

'FNP-0-ETP-4338 5

Shoot 1 of 1 Data Sheet 2 Service Water Storage Pond Dam Reservoir Area O

YES NO LOCATION I.

Inside Slopes A.

GRASSED

1. Sluffing

'3.

Erosion

3. Undermining (conc. aprons)

4. Shrinkage Cracks

5. Scouring B.

RIP RAP

1. Settlement

2. voids II. Outside Slopes

()

A.

GRASSED (All Areas)

I

1. Wet Zones

2. Seepage

3. Erosion

4. Shrinkage Cracks

5. Animal Burrows

6. Scouring III. River Water Pond Makeup Structure A.

Underwater Concrete Slab

~

/

1. Scouring IV.

Comments:

(List Any Abnormalities)

DEC ETP-162/17 Rev. 1