ML062000149

E-Mail from D. Croulet of Entergy to Various, Regarding Results 4-10-06

ML062000149
Person / Time
Site:	Indian Point
Issue date:	04/12/2006
From:	Croulet D Entergy Corp
To:	Boska J, Gregory Bowman, Cox M, Noggle J Office of Nuclear Reactor Regulation
References
FOIA/PA-2006-0195
Download: ML062000149 (6)

Text

-if- /1 I-Unknown-___

From: Sent: To:

Subject:

Croulet, Donald K Wednesday, April 12, 2006 11:19 AM Conroy, Patric W; Cox, Mark R; Bowman, Greg ; 'Timothy Rice'; 'James Noggle'; 'jrwl @nrc.gov';

PRICE, ERNEST JR; Robert Oliveira (boliveira@amnucins.com);

Janicki, John W;'paul-eddy@

dps.state.ny.us' Emailing:

Results 4-10-06.pdf Results 4-10-06.pdf Monitoring Well Status as of 4-10-06 kiomabo n Mm tsretd was de&et, inaxmb w Frebodf~orm ofW oni Page 1 MONITORING WE LL APRIL 10, 2006 at 1700 hrs PHASE I WELL STATUS Location Status Notes Most Recent IPEC Tritium IPEC Strontium See note below MW-30 E I -jL 'V In Service N/A In Service N/A MW-31 U2 MOB sidewalk MW-32 I' egro"Pt e'In Service Packer testing in progress 511,000 pCi/L 65,000-179,000 26,200 pCi/L 17,700 pCi/L-253,000 pCi/L 230,000 pCi/L 119,000 pCi/L 58,100 pCi/L MW-33 MW-34 MW-35 MW-36 MW-37 U2 Transformer Yard U2 Trafisformer Yard U2 Transformer Yard In Service N/A In Service N/A In Service NA (2/07/06)(3/13/06)(2/23/06)(2/7/06)+(3/3/06)(3/3/06)(3/3/06)(3/23/06)(3/27/06)East side of Discharge Canal West Side of Discharge Canal In Service Highest reading at 52' depth 1.29 pCi/L (2/7/06)In Service Highest readingat 32' depth 34,100 pC/L 2.4-22.7 pCi/L (2/28/06)MW-38 I In Service N/A Not Detected on (3/13/06)MW-Ill U2 Transformer Yard In Service N/A 236,000 pCi/L (3/3/06)1.17 pCi/L (2/7/06)0 0 0 0 0 On 3/13/06 the 74', 78', and 76' depths on MW-30 were taken for IPEC tritium counting (results:

179,000, 142,000, 65,000 pCi/L respectively)

The above MW-30 sample at 72' el was also taken, and sent directly to Teledyne for analysis, as this has been typically higher tritium activity MW-30 cannot be sampled for next 30 days because of outage equipment placement, and area dose rates from demineralizer skid Attempts will be made to get representative Transformer Yard wells ( MW-33,34,35, 111) if possible during outage for MW-30 trending correlation 4/3/06 Tei vacuum truck is onsite to vacuum dirt from the drums at each well site. (Dirt produced from the drilling process).

This dirt has been sampled and will be dumped onsite. Drums at 31,32,37,39,41,42,44,45, and 52 have been emptied at this time.

Well # Location MfW-39 [MW-40 5,. Parking Lot above Sewerage Plant MW-41q £MW-42 '/C MW-43 '/ [MW-44 -/7.MW-45 .MW-46 U3 Transformer Yard M4W-47 -j MW-48 Far South Property Boundary MW-49 West side of Discharge Canal MW-50 East side of Discharge Canal MW-51 South Hill North of MW-40 MW-52 North end of U2 Turbine Bldg PHASE II WELL STATUS Status Notes In Service Packer testing in progress In Service N/A In service N/A jIn service At 42' depth In service Sampled 26' and 62' dept Drilling complete To be sampled Drilled 65' of 65' Drilling complete In Service N/A In service N/A In service N/A ths Most Recent IPEC Results 789 pCi/L (3/02/06)N.D (< MDA) (2/09/06)1031 pCi/L (3/16/06)261,000 pCi/L (3/22/06)N.D (<MDA) (3/15/06)N.D. (<MDA) (3/28/06)1060 pCi/L (4/4/06)1430 pCi/L (3/01/06)N.D. (<MDA) (3/16/06)N.D. (<MDA) (2/10/06)15,200 pCi/L (3/22/06)10,700 pCi/L (3/22/06)N.D (<MDA) (4/4/06)N.D (<MDA) (3/31/06)(1.05E-05 uCi/cc Cs-137)at 25.5' depth at 67' depth In service In service Drilling complete Split sampled 3/22/06 Split sampled 3/22/06 N/A Drilling complete N/A MOST RECENT TRITIUM ACTIVITY IN MONITORING WELLS (BY INCREASING VALUES)-03/31/06 These numbers below represent the highest activity found in the well. Because some of the wells have multiple sample heights, the values may be lower in the well at other elevations but are not listed below.Example: MW-42 has 261,000 pCi/L 49' down in the well (shallow well sample point) and 6,550 pCi/L 78' down in the deeper well sampling point.WELL NUMBER MW-40 MW-43 MW-47 MW-48 MW-38 MW-44 MW-39 MW-41 MW-46 MW-50 MW-49 MW-32 MW-37 MW-31 MW-36 MW-35 MW-30 MW-34 MW-1Il MW-33 MW-42 ACTIVITY (pCi/L)ND ND ND ND ND ND 793 1031 1430 10,700 15,200 17,700 30,000 33,100 58,100 119,000 179,000 230,000 236,000 253,000 261,000 WELL NUMBER MW-45 MW-51 MW-52 ACTIVITY (pCi/L)1060 N.D.N.D.

MW-37 IPEC SPLIT SAMPLE RESULT FROM FEB 28. 2006 SAMPLE FROM TELEDYNE LAB Note: The values given below for Ni-63 are the first reported lab values. Recounting for nickel 63 is in progress and early indication is that tile stated values below are incorrect, and nickel-63 is believed to be either not present, or possibly present at low values. We are awaiting the official Teledyne lab results.Additionally another lab (Framatome) is counting this Feb 28 sample, and a March 17 sample, for nickel -63 comparisons The values for Strontium-90 as counted by Teledyne are in good agreement with the NRC lab results with the exception of tile 40'elevation where Teledyne reported 3.8 pCi/L and the NRC value were higher ( range of 20 pCi/L)TELEDYNE LAB RESULTS DEPTH TO BOTTOM 22'SEA LEVEL ELEVATION-7, H-3 pCi/L 12,800 28,600 14,700 SR-90 pCi/L 2.4 N-63 pCi/L 42.4 (suspect)34.1 (suspect)56.5 (suspect)32'40'-17'-26'18.2 3.8 57' -42'13,300 22.7 29.1 (suspect)

\*MOST RECENT SPLIT SAMPLES TAKEN (March 22-April 7,2006)The data below is the on-site IPEC tritium sample results for screening purposes, prior to ship out to Teledyne Labs: Well 0 0 0 0 S 0 0 0 0 0 S 0 0 0 0 0 MW-50 MW-50 MW-49 MW-49 MW-49 MW-42 MW-42 MW-36 MW-36 MW-36 MW-42 MW-42 MW-42 MW-42 MW-42 MW-42 Sample Depth 42' Depth 67' Depth 25.5' Depth-West 42' Depth-East 65.5' Depth Collected 49' Depth 78' Depth 26' Depth 52' Depth 41' Depth (sampled 3/22/06)(sampled 3/22/06)(sampled 3/22/06)(sampled 3/22/06)(sampled 3/22/06)(sampled 3/23/06)(sampled 3/24/06)(sampled 3/23/06)(sampled 3/23/06)(sampled 3/24/06)(sampled 4/07/06)(sampled 4/07/06)(sampled 4/07/06)(sampled 4/07/06)(sampled 4/07/06)(sampled 4/07/06)IPEC Counted 3/26/05 8,040 10,700 15,200 10,100 6,620 261,000 6,550 29,500 58,100 28,700 (showed 1.05 E-05 uCi/ce Cs-137 from IPEC count results) *41' Depth (1")43' Depth (1")45.5' Depth (1")48' Depth (1")78' Depth (1")51' Depth (2")Awaiting results Awaiting results Awaiting results Awaiting results Awaiting results Awaiting results***This is only well sample (at depth 49') that showed any gamma activity to date All the above wells were counted for PCBs and found clean MW-37 was also recently sampled for PCBs (this was a non-split sample effort for PCB's) and is being sent out for analysis