Text

Proposed Tech Specs,Adding Throttling Requirement to Plant Svc Water Pumps at Low River Level
	ML20237C414
Person / Time
Site:	Hatch
Issue date:	12/15/1987
From:	; GEORGIA POWER CO.
To:	;
Shared Package
ML20195G888	List: ML20195G881; ML20237C414;
References
	NUDOCS 8712210305
	Download: ML20237C414 (6)
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LIMITING CONDITIONS FOR OPERATION SURVEILLANCE REQUIREMENTS 4.5.H.l.

Maintenance of Filled Dis-charge Pipes (con't) from the high point and water flow observed.

2.

Following any period where the LPCI or core spray sys-tems have not been required to be operable, or have been inoperable the discharge piping of the system or sys-tems being returned to ser-vice shall be vented from the high point prior to re-turn of the system to service.

3.

Whenever the HPCI or RCIC system is lined up to take suction from the condensate storage tank, the discharge piping of the HPCI and RCIC shall be vented from the high point of the system and water flow observed on a monthly basis.

4.

The level switches which monitor the discharge lines l

shall be functionally tested every month and calibrated every three months.

3.5.1.

Minimum River Level I.

Minimum River level 1.

If the water level, as The water level as measured measured in the pump well, in the pump well and the is less than 61.2 feet MSL, level in the river

shall the discharge f rom each plant be verified with the follow-service water pump will be ing frequencies:

throttled such that each pump does not exceed 7000 gpm.

Level (MSL)

Freouency 2.

If the water level as measured 1.

>61.7 feet Biweekly in the pump well decreases to less than 60.7 feet MSL, or if 2.

561.7 feet Every 12 hrs the level in the river

would drop to a level equivalent to less than 60.7 feet in the pump well of the intake structure, an orderly shut-down of the reactor shall be initiated, and the reactor shall be in the Cold Shutdown Condition j

within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months until the level in the river is greater than or equal to 60.7 feet MSL equivalent in the pump well.

0nly pump well monitoring is required if a temporary weir is not in place.

l l

HATCH - UNIT 1 3.5-11 Proposed TS/0181a/328-14 pg22ggg guaggi P

4 PLANT SYSTEMS SERVICE WATER SYSTEMS LIMITING' CONDITION FOR OPERATION 3.7.1.2 Two independent plant service water system loops and the standby service water subsystem shall be OPERABLE with:

The water level in the pump well of the intake structure greater a.

than or equal to:

1.

61.2 feet mean sea level (MSL), or 4

2.

60.7 feet MSL, with the discharge from each plant service water pump throttled such that each pump does not exceed 7000 gpm.

b.

The river level

equivalent to greater than or equal to 60.7 feet MSL in the pump well, and c.

Er.ch plant service water system loop containing two OPERABLE plant service water pumps, and d.

The standby service water system containing one OPERABLE stand-by service water pump.

APPLICABILITY:

CONDITIONS 1, 2, 3, 4, and 5.

ACTION:

a.

In CONDITION 1, 2, or 3:

1.

With one plant service water pump inoperable, operation may continue and the provisions of Specification 3.0.4 are not applicable; restore the inoperable pump to OPERABLE status within 30 days or be in a least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

+

2.

With one plant service water pump in each loop inoperable, operation may continue and the provisions of Specification 3.0.4 are not applicable; restore at least one inoperable pump to OPERABLE status within 7 days or be in at least HOT SHUTOOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

3.

With one plant service water system loop inoperable, restore the inoperable loop to OPERABLE status with at least one OPERABLE pump within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

l

0nly pump well monitoring is required if a temporary weir is not in place.

l HATCH - UNIT 2 3/4 7-3 Proposed TS/0182q/328-73 IL--_-

PLANT SYSTEMS-LIMITING CONDITION FOR OPERATION (Continued)

ACTION (Continued)

I 4.

With the standby service water subsystem inoperable for up to 60 days, provide Hatch - Unit I service water cooling to the IB Diesel. generator by verifying OPERABILITY of the Hatch - Unit 1 service water cooling source per Hatch - Unit I technical specifications within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months . Otherwise, declare the IB diesel generator inoper-i able and take the ACTION required by Specification 3.8.1.1.

5.

With water level 'less than specified in' 3.7.1.2.a or 3.7.1.2.b, be in at least HOT SHUTDOWN within the next

12. hours and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , b.

In CONDITION 4 or 5:

1.

With up to three plant service water pumps or one plant service water loop inoperable, or 2.

With two plant service water pumps and the standby service water subsystem inoperable, i

restore both plant service water loops with at least one pump in each loop and the standby service water subsystem to '0PERABLE status within 7 days or declare the core spray system, the LPCI system and the associated diesel generators inoperable i

and take the ACTION required by Specifications 3.5.3.1, 3.5.3.2 l

and 3.8.1.2.

SURVEILLANCE REQUIREMENTS i

4.7.1.2 The plant service water system and the standby service water subsystem shall be demonstrated OPERABLE:

By verifying that the water level in the pump well of the intake a.

structure is greater than or equal to 60.7 feet MSL** and the river level

would correspond to a level in the pump well of the intake structure of greater than or equal to 60,7 feet.

1.

At least once per 14 days when the level in the pump well i

of the intake structure is above 61.7 feet MSL, and 2.

At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months when the level in the pump well of the intake structure is less than or equal to 61.7 feet MSL.

0nly pump well monitoring is required if a temporary weir is not in place.

{

- Note the throttling requirements of Specification 3.7.1.2.a.2 l

HATCH - UNIT 2 3/4 7-4 Proposed TS/0182q/328-0

i ENCLOSURE 3 VENDOR LETTER ON PUMP SUBMERGENCE REQUIREMENTS l

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ENCLOSURE 3 1

NPSD HATCH RECEIVED Jahaaran Pump w sm erzuws*m

'JUL 241986 2601 East 34th Street i

l Chattanooga, Tennessee 37407

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N Phone: (615) 6291415 0 TWX: 810 573-52' Ei~o~Yntr?$l

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w July 21, 1986 5^

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FILE #_MZT.bS.'NNI SOUTHERN COMPANY SERVICES

' COPY REQD FOR.

Post Office Box 2625 Birmingham. Alabama 35202 N k,............

J ATTENTION: Mr. William Garner SUEJECT:

RHRSW, PSW, Stand By Service Water Pumps, Submergence i

I Requirements I

REFERENCE:

Letter dated July 21, 1986 Please refer to the attached sheet when adjusting the submergence of the referenced pumps.

If I can be of further assistance please do not hesitiate to call.

Best Regards, JOHNSTON PUMP COMPANY Gerald D. Harrelson Nuclear Account Manager GDH#b ATTACHMENT cc: JPCO Distribution Tim Long A Divssion ofJohnston Purnp/ General Vahr, Inc

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ML20237C414

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