ML19207C138

Forwards Final Design Criteria for WG-21 Interim Solid Waste Staging Facility

ML19207C138
Person / Time
Site:	Crane
Issue date:	06/05/1979
From:	Pastor M GENERAL PUBLIC UTILITIES CORP.
To:	Graber W, Logan J, Rusche B GENERAL PUBLIC UTILITIES CORP.
References
NUDOCS 7909060479
Download: ML19207C138 (5)

Text

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Inter-Office Memorandum La June 5, 1979

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'J a-Sunta DESIGI; CRITERIA FOR II;TERIM SOLID WASTE STAGING FACILITY - WO-21

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E. GMIER Waste Management J. B. LOGAN ~

L. R'JSCHE R. L. WILLIAMS Attached for your record is the final design criteria for the subject facility.

Co=medts cade by J. Collins have been incorporated into this revision and initialled by all addresses.

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3 DESIGN CRITERIA APPROVAL The at ached design criteria fcr

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WG-21 INTERIM SOLID UASTE STACING FAC!LITY 1

Task Number Title Revision is approved..

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l SYSTC: DESCRIPTION INTERIM SOLID WASTE STAGING FACILITY

1.0 INTRODUCTION

Currently, there are several large metal containers of depleted,,,,

radioactive resin that have been generated by Epicor 1 and are-~

being stored in concrete culvert pipes along the west side of the Unit 1 Auxiliary Building where the Epicor I system is located.

It is expected that within the next two weeks, similar (although smaller) liners of depleted, radioactive resin will be generated by Epicor II.

It is the intention of all concerned to ship these liners to-approved burial sites as soon as possible.

however, because of the long distances involved in trucking this waste to the western burial sites and the limited number of casks available for making these trips, it has become necessary to provide an on-site staging crea to safely store these liners until they can be shipped. At pr.esent, a design is being finalized for a long term staging facility to handle these vastes as well as the waste from the system (s) selected to process the higher activity wastes still inside centainment.

Until this long term facility is operational, a quick, incxper sive and easy to construct, interim staging facility is needed to allow Epicor II to start up as soon as possible.

2.0 DESIGN CRITERIA The safety, radiological, and functional design criteria for the interim staging facility are as follows:

1.

The facility must be operational before Epicor 11 is started up.

2.

The design shall be such that a construction duration of more than two weeks will not be necessary.

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3.

The bottom of the cells shall be above the ncreal water table.

The design shall also preclude the possiblity of the maxium expected runoff from any one rainfall from pooling around the cell bottoms.

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The. radiation level at the surface of the cells shall be 5 mrem /hr or less.

5.

Interior surfaces of cells shall be easily decontaminated.

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s 2.0 DESIGN CRITERIA (cont.)

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Outsidt the metal resin liners therselves. twc additional barriers shall be provided against any leakage from the cells.

7.

The cells shall be protected against in-leakage of ground water er rainwater.

S.

The facility shall be sized to handle all solid waste generated by Epicor II in processing 120,000 gallons of

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waste water.

The facility shall also be capable of staging

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ten liners produced by Epicor I.

Based on these criteria, the total capacity of the staging area shall be:

4-4' O x 68" charcoal filter liners - 2500 R/hr each 12-4'.0 x 68" demineralizers - 400 R/hr each 2-6' O x 72" polishing denineralizer - 25 R/hr each 10-6' O x 72" Epicor I liners - 25 R/hr each 9.

Arca around the cells shall be graded and covered in such a manner that, rainwater runoff. drains away from the cells.

10.

The moverent of liners in and out cf the cells shall be donc using a shielded pick when required.

Exposures to operating nersonnel ahall he within administrative limits set b:. Me t-Ed Ecalth Phynics Trocedures.

11.

The ground around each cell shall be protected against con-tamination durir.g movement of disposable liners in and out of that cell.

12.

Earth embankments used for shielding around cells shall be protected against erosion.

13.

The area around interim staging facility shall be designated an R'JP area, with appropriate security provided.

14 All movenent of containers in and out of the cell shall be done in clear weather, with reasonable assurance that no pre-cipitation will occur during the period of time that the transfer cperation is planned for.

15.

Prior to any construction work on the interim staging facility, a surface radiation survey shall be performed for the area.

16.

The design life of^the facility shall be four months. commencing with placement of first waste centainer into f acilityi* Following use, the f acility shall be decontaminated (as req ui re d), dismantled, and the area restored as directed by the arte Management Activity.

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2.0 D' SIGN CRITERIA (cont.)

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The facility shall be designed to permit snow removal.

How-e v e:r, freeze / thaw protection need net be considered if the design life of the facility does not enend pas: ?-

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The facility shall be located in an area which allows easy

' /D C access using a Manitcwoc 4000 crane and 40 foot low-boy ~ '-.@

trailer.

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19.

I The cells shall be reuseable to allow liners containing I f ye*

to be stored for decay and then reused.

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All major construction activities must be done before any 3

t waste containers are placed in the facility, so that radi-

<J wm ation from the first liners transferred to the facility does a A ~-

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not hamper completion of construction.

At any time up until the f acility is completed, enough cell covers shall be ensite to cover both the filled cells, and the adjacent unfilled cell or cel.ls.

21.

As much as possibic, the facility shall be designed to per-mit reuse of material (such as cell liners and shield plugs) in the long *.erm en-site s ta t,in g facility.

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