ML20204H451

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Rev 9 to Procedure OP-9A, Liquid Waste Process Sys Operation
ML20204H451
Person / Time
Site: Point Beach  NextEra Energy icon.png
Issue date: 02/28/1984
From:
WISCONSIN ELECTRIC POWER CO.
To:
Shared Package
ML20204H448 List:
References
NUDOCS 8411120295
Download: ML20204H451 (3)


Text

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OP-9A MAJOR

Revision 9 02-28-84 LIQUID WASTE PROCESS SYSTEM OPERATION 1.0 PURPOSE To provide general instructions for operation of the liquid waste disposal system.

2.0 PRECAUTIONS & LIMITATIONS 2.1 All-liquid discharges must be in accordance with the requirements of the Technical Specifications and other applicable regulatory requirements.

2.2 Radioactive liquids shall be discharged in strict compliance with a properly authorized " Permit for Discharge of Radioa':tive Waste."

2.3 Verify that the appropriate radiation monitor remains in service during each release.

( 2.4 Do not exceed 1 pC/ml activity in evaporator bottoms.

2.5 Do not exceed 25% total dissolved solids in evaporator bottoms.

Excess concentrations can not be solidified properly.

2.6 Wisconsin state law prohibits discharge of chemical drain tanks directly to the lake.

2.7 Operate the blowdwon evaporator per OI-16.

2.8 Operate the 5 pn waste evaporator per OI-67.

3.0 DISCUSSION 3.1 The waste holdup tank should be kept on recirculation any time level is above 5%. Recirculation by either continuous evaporator operation while wasting distillate or by way of the waste evaporator feed pump filter is aacceptable.

3.2 When waste holdup tank level reaches approximately 40%, or as directed by the Duty shift Superintendent, secure recirculating the waste holaap tank and begin processing water for release.

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T, i OP-9A Page 2

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3.3 operate the selected evaporator per the unit operating instructions.

3.3.1 The 2 gpm waste evaporator distillate should nonnaFly be discharged to the "A" waste condensate tank. When the tank level reaches approximately 90%, begin transferring the water to the "B" waste condensate tank via the polishing domineralizer designated for waste water cleanup.

3.3.2 The blowdown evaporator distillate should normally be discharged to the "A" waste distillate tank. When the level reaches 80%, divert the evaporator output to the waste holdup tank and shut the waste distillate tank fill valve.

3.3.3 Distillate quality may vary with evaporator conditions and that quality determines subsequent requirements.

a. If the distillate quality has been good, the tank would be sampled for release and possibly have the release made directly from the "A" waste distillate tank.
b. If the evaporator conditions should require that the water be further purified, pump the "A" waste distillate tank to the "B" waste distillate tank via the polishing
demineralizer designated for waste water cleanup. The

( "B" tank must then be sampled before release. (Refer the Chemistry Group Standing Orders for acceptability

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criteria concerning polishing demineralizer use.)

3.4 Obtaining a representative sample requires that each tank be

, recirculated according to volume and pump capacity. Recirculate waste condensate tanks 5 minutes per 100 gallons. Recirculate monitor tanks and waste distillate tanks 15 minutes per 1000 gallons.

NOTE: WHEN WASTE DISTILLATE TANK "A" IS TRANSFERRED TO WASTE DISTILLATE TANK "B" VIA THE POLISHING DEMINERALIZER, THE 15 MIN /1000 GALLON RECIRCULATION FOR SAMPLING MAY BE WAIVED PROVIDED CHEMISTRY OBTAINS A SAMPLE WITHIN TWO

, HOURS FOLLOWING COMPLETION OF THE TRANSFER.

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! 3.5 The service water system must be aligned to the circulating water system that provides dilution flow specified on the " Permit for

Radioactive Release."

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! 3.6 During circulating water system ice melt operation, releases should only be made to the ice melt unit if the other unit's circulating water system is inoperable.

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OP-9A Page 3 l

3.7 Complete the release permit data sections as they are performed and inform the control room at the time a release is begun or terminated.

4.0 PROCEDURE 4.1 Check that the radiation monitor to be used for the discharge (RE-218 or RE-223) is being displayed in WHITE on the CRT in control.

This indicates the monitor is on computer scan and in FAIL status due to no flow through the detector.

4.2 Align the pallet to be used for the discharge so there is a parallel flow path through the pallet.

Main flow through the detector bypass line.

Sample flow through the dete: tor portion of the pallet.

4.3 Commence the discharge not to exceed the specified flow rate of the discharge permit. At this time the sample flow meter on the pallet will indicate >10 1pm and the status for this monitor should change from WHITE to GREEN on the. controller circuit.

( 4.4 Should the fail status occur during the discharge, it is an indication of insufficient sample flow. If proper flow cannot be maintained, the discharge must be terminated.

4.5 When discharge is completed, secure the pallet lineup and relock the waste liquid discharge valve shut.

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