ML20009G504

Forwards Responses to NRC Requests Re Plant Fill.Includes Updated List of Marker Settlement,Piezometer Plots & Explanatory Notes for Piezometer Settlement plots.W/200 Oversize Drawings.Aperture Cards Are Available in PDR

ML20009G504
Person / Time
Site:	Midland
Issue date:	07/27/1981
From:	Jackie Cook CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:	Harold Denton Office of Nuclear Reactor Regulation
References
12809, NUDOCS 8108040359
Download: ML20009G504 (8)

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I Consumels power James W Co Vice Presiden. - hojects, Engineering and Construction General offices: 1943 West Parnell Road, Jackson, MI 49201 * (517) 788 0453 July 27, 1981 O!- s

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Harold R Denton, Director S Py lp Office of Nuclear Reactor Regulation h ud,- <\ '

US Nuclear Regulatory Commission ---I

• s' Washington, DC 20555 ( AUG 0 31ggw,;

MIDLAND PROJECT -

UA1*$m m Y DOCKET NOS 50-329, 50-330 N RESPONSES TO NRC REQUESTS REGARDING PLANT FILL - yj 8 UPDATES OF DIESEL GENERATOR BUILDING AREA

• SETTLEMENT AND PIEZ0 METER E1.0TS FILE: 0485.16 SERIAL: 12809 ENCLOSURES: (1) DIESEL GENERATOR BUILDING 106 UPDATED MARKER SETTLEMENT PLOTS AND l 48 UPDATED PIEZOMETEP PLOTS WITH LISTING l

(2) EXPLANATORY NOTES FOR PIEZ0 METER SETTLEMENT PLOTS I

i We are herewith forwarding six (6) copies of those enclosed and updated markers settlement and piezometer plots ider.tified in the listing of Enclosure 1. Enclosure 1 includes the following types of updated plots:

(1) settlement plots designated "DG": (2) Borros anchor plots designated "BA",

l (3) settlement plate graphs designated "PL" and (4) piezometer plots

! designated "PZ".

These updated plots will provide additional and revised settlement information to replace that previously provided fa the graphs of Question No 27 located in i

Volumes II and III of the "Responser to NRC Questions Regarding Plant Area r Fill." The listing of Enclosure 1 -includes a separate column in which we have characterized the changes on each figure as revised (R) and/or additional (A) data points. Please note that not all of the 2urrent plots have been changed to include revised and supplemental information. Borros anchor plots BA's 1, 55-58 and settlement plate graphs PL's 1-6, 8, 9, 11, 14, 15, 18, 20, 24-43 and 52 remain unchanged and are not included with Enclosure 1.

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Enclosurs 2 includes an explanation of the terms which appear on the piezometer plots to describe the abnormal readings obtained from select piezometers during certain periods. Also included are explanations of the aberrant readings of specific piezometers which can not be easily characterized in more general terms. It is intended that this information w 11 enhance the NRC's understanding of those piezometers which appear to have behaved erratically.

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Thank you for your cooperation on this matter.

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JVC/RLT/cr j/

CC Atomic Safety & Licensing Appeal Board w/o plots Atomic Safety & Licensing Board Panel w/o plots Charles Bechhoefer, Esq w/o plots Myron M Cherry, Esq, w/o plots RJCook, Midland Resident Inspector w/o Dr Frederick P Cowan, w/o plots Ralph S Decker w/o plots NRC Docketing and Service Section w/a Steve Gadler, w/o plots RWHuston, w/o plots JDKane, NRC w/a Frank J Kelley, Esq w/o plots Wendell H Marshall, w/o plots Michael I Miller, Esq w/a W Otto, US Army Corps of Engineers, w/a William D Paton, Esq w/o plots Mary Sinclair, w/o plots Barbara Ctamiris, w/o plots l

oc0781-0346a100

Enclosure 1 Serial 12809 Page 1 DIESEL GENERATOR BUILDING LISTING OF UPDATED MARKER SETTLEMENT AND PIEZ0 METER PLOTS Responses to 10 CFR 50.54 Revised (R)/ Enclosure 1 Additional (A) tiarkers Figure Data Points Sheet No DG-1 Supplemental 27-51 A 1 DG-3 27-6 A 2 DG-4 Supplemental 27-52 A 3 DG-5 Supplemental 27-53 A 4 DG-6 Supplemental 27-54 A '5 DG-7 Supplemental 27-55 A 6 DG-8 Supplemental 27-56 A 7 DG-9 Supplerental 27-57 A 8 DG-10 Supplemental 27-58 A 9 DG-11 Supplemental 27-59 A 10 DG-12 Supplemental 27-60 A 11 DG-13 Supplemental 27-61 A 12 DG-14 Supplemental 27-62 A 13 DG-15 Supplemental 27-63 A 14 DG-16 Supplemental 27-64 A 15 DG-17 Supplemental 27-65 A 16 DG-18 Supplemental 27-66 A 17 DG-19 Supplemental 27-67 A 18 DG-20 Supplemental 27-68 A 19 DG-21 Supplemental 27-69 A 20 DG-22 Supplemental 27-70 A 21 DG-23 Supplemental 27-71 A 22 DG-24 Supplemental 27-72 A 23 DG-25 Supplemental 27-73 A 24 DG-26 Supplemental 27-74 A 25 DG-27 Supplemental 27-75 A 26 DG-28 Supplemental 27-76 A 27 PG-29 Supplemental 27-77 A 27A BA-61 to 64 Supplemental 27-78 A 27B

, BA-2 Supplemental 27-81 R 28 BA-3 Supplemental 27-82 R 29 BA-4 Supplemental 27-83 R 30 BA-5' Supplemental 27-84 R 31 BA-6 Supplemental 27-85 R 32 BA-7 Supplemental 27-86 R 33 BA-8 Supplemental 27-87 R 34 BA-9 Supplemental 27-88 R 35 BA-10 Supplemental 27-89 R 36 BA-11 Supplemental 27-90 R 37 BA-12 Supplemental 27-91 R 38 oc0781-0345a100

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) Enclosure 1 Serial 12809 i Page 2 i Recponse to 10 CFR 50.54 Revised (R)/ Enclosure 1 -

Additional (A)

Markers Figure Data Points Sheet No BA-13 S7pplemental 27-133 R 39 BA-14 Sapplemental 27-134 R 40 BA-15 Supplemental 27-135 R 41 BA-16 Supplemental 27-136 R 42' BA-17 Supplemental 27-92 R 43 BA-18 Supplemental 27-93 R 44 BA-19 Supplemental 27-94 R 45 BA-20 Supplemental 27-95 R 46 BA-21 Supplemental 27-96 R 47 BA-22 Supplemental 27-97 R 48 BA-23 Supplemental 27-98 R 49 Bt.-24 Supplemental 27-99 R 50 BA-25 Supplemental 27-100 R 51 BA-26 Supplemental 27-101 R 52 BA-27 Supplemental 27-102 R 53 BA-28 Supplemental 27-103 R 54 BA-29 Supplemental 27-104 R 55 BA-30 Supplemental 2'i-105 R 56 BA-31 Supplemental 27-106 R 57 BA-32 Supplemental 27-107 R 58 BA-33 Supplemental 27-108 R 59 l BA-34 Supplemental 27-137 R 60 BA-35 Supplemental 27-138 R 61 BA-36 Supplemental 27-139 R 62 BA-37 Supplemental 27-109 R 63 BA-38 Supplemental 2/-110 R 64 BA-39 Supplemental 27-111 R 65 BA-40 Supplemental 27-112 R 66 BA-41 Supplemental 27-113 R 67 BA-42 Supplemental 27-114 9 68 BA-43 Supplemental 27-115 69 BA-44 Supplemental 27-116 i 70 BA-45 Supplemental 27-117 R 71 BA-46 Supplemental 27-118 R 72 BA-47 Supplemental 27-119 R 73 BA-48 Supplemental 27-120 R 74 BA-49 Supplemental 27-121 R 75 BA-50 Supplemental 27-122 R 76 BA-51 Supplemental 27-123 R 77 BA-52 Supplemental 27-124 R 78 BA-53 Supplemental 27-125 R 79 BA-54 Supplemental 27-126 R 80 BA-59 Supplemental 27-131 R 81 BA-60 Supplemental 27-132 R 82 PL-7 Supplemental 27-146 R 83 PL-10 Supplemental 27-148 R 84 PL-12 Supplemental 27-150 R 85 PL-13 Supplemental 27-151 R 86 oc0781-0345a100

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i Enclosure 1 Serial 12809 Page 3 Response to 10 CFR 50.54 Revised (R)/ Enclosure 1 l Additional (A)

Markers Figure Data Points Sheet No I

PL-16 Supplemental 27-154 R 87

' PL-17 Supplemental 27-155 R 88 PL-19 Supplemental 27-157 R 89 j PL-21 Supplemental 27-159 R 90 i PL-22 Supplemental 27-160 R 91

! PL-23 Supplemental 27-161 R 92 1 PL-44 Supplemental 27-166 R 93A PL-45 Supplemental 27-167 R 93B PL-46 Supplemental 27-168 R 94 PL-47 Supplemental 27-169 R 95 PL-48 Supplemental 27-170 R 96 l PL-49 Supplemental 27-171 R 97

, PL-50 Supplemental 27-172 R 98 3 PL-51 Supplemental 27-173 R 99

, PZ-1 Supplemental 27-5 R 100-101 l PZ-2 Supplemental 27-6 R 102-103 I PZ-3 Supplemental 27-7 R 104-105 I PZ-4 Supplemental 27-8 R 106-107

PZ-5 Supplemental 27-9 R 108-109 PZ-6 Supplemental 27-10 R 110-111 j PZ-7 Supplemental 27-11 R 112-113

PZ-8 Supplemental 27-12 R 114-115 PZ-9 Supplemental 27-13 R&A 116-118 PZ-10 Supplemental 27-14 R&A 119-121

. PZ-11 Supplemental 27-50 New Plot /No Change 122

PZ-12 Supplemental 27-15 R 123-124 l PZ-13 Supplemental 27-16 R 125-126 4

PZ-14 Supplemental 27-17 R 127-128 PZ-15 Supplemental 27-18 R 129 PZ-16 Supplemental 27-19 R 130-131 PZ-17 Supplemental 27-20 R&A 132-134 PZ-18 Supplemental 27-21 R&A 135-137 PZ-19 Supplemental 27-21A R&A 138-140

PZ-20 Supplemental 27-22 R 141 PZ-21 Supplemental 27-23 R&A 142-144 l PZ-22 Supplemental 27-24 R&A 145-147 i PZ-23 Supplemental 27-25 R&A 148-150

PZ-24 Supplemental 27-26 R&A 151-153 i PZ-25 Supplemental 27-27 R&A 154-156 l PZ-26 Supplemental 27-28 R 157-158 PZ-27 Supplemental 27-29 R 159-PZ-28 Supplemental 27-30 R 161 PZ-29 Supplemental 27-31 R 162-163 PZ-30 Supplemental 27-32. R&A 164-166 i PZ-31 Supplemental 27-33 R 167-168 PZ-32 Supplemental 27-34 R 169-170 j PZ-33 Supplemental 27-35 R&A 171-173 PZ-34 Supplemental 27-36 R 174-175 l

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r=--r--,y ,c<wnvw-e re nm ,g e , w w- w -9',y- - - = - ,mmu*-+y-w=***%--,m-, v-*-m.e-e--,-r-ww-,,w,r-m-ww-e-*-e-,+-+ --.=~.o-,,--=-,g- -+---e -~.~e+-e

Enclosure 1 Serial 12809 Page 4 Response to 10 CFR 50.54 Revised (R)/ Enclosure 1 Additional (A)

Markers Figure Data Points Sheet No PZ-35 Supplemental 27-37 R&A 176-178 PZ-36 Supplemental 27-38 R 179-180 PZ-37 Supplemental 27-39 R 181-182 PZ-38 Supplemental 27-40 R 183 PZ-39 Supplemental 27-41 R 184 PZ-40 Supplemental 27-42 R 185-186 PZ-41 Supplemental 27-43 R 187-188 PZ-42 Supplemental 27-44 R 189-190 PZ-43 Supplemental 27-45 R 191-192 PZ-44 Supplemental 27-46 R&A 193-195 PZ-45 Supplemental 27-50 New Plot /No Change 196 PZ-46 Supplemental 27-47 R 197 PZ-47 Supplemental 27-48 R 198 PZ-48 Supplemental 27-49 R 199-200

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RLT 7/10/81 oc0781-0345a100

1 Enclosure 2 Serial 12809 Page 1 EXPLANATORY NOTES FOR PIEZ0 METER SETTLEMENT PLOTS

1. General Definitions The following are general definitions of the terms used to describe other than normal readings of the piezometers. Item 2 below is a specific list of piezometers with exceptions which cannot be characterized by the following general definitions A. Inoperable - a reading was attempted, i.e. , the tubing of the PZ reader was inserted into the piezometer, but no water was indicated. The tubing was inserted as far as it would go, generally, to a depth such that the piezometer was not believed obstructed. It could not be determined why the PZ reader did not indicate the presence of water.

B. No Readings Taken - no piezometer readings were taken during this period.

C. Inaccessible - inability to read piezometer due to temporary construction interferences.

D. Permanently Inoperable - piezometer physically damaged beyond repair.

2. Specific Piezometers This is a listing of specific exceptions to the preceeding general explantory notes for the following piezometers.

l PZ 9 - The difficulty experienced in October and November of 1980 may have been due to problems experienced with the piezometer reader.

PZ 10 - See note for PZ 9. Also, all piezometers were flushed during the week of 11/3/80, which may account for the readings after that date.

I PZ 17 - See note for PZ 9. Also, mechanical difficulties were experienced with the PZ reader in May of 1980.

PZ 18 - See notes for PZ 9, PZ 10.

PZ 19 - For readings after 12/12/80 see note for PZ 10.

PZ 22 - See note for PZ 10.

PZ 23 - Location subject to construction interference during placing of concrete floor and diesel generators (1 of 2 working PZ's in Bay 1). For readings after 12/80 see note for PZ 10.

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Enclosure 2 Serial 12809 Page 2 PZ 24 - Difficulty experienced soon after piezometer installation which indicates possible tampering.

1 I PZ 30 - Difficulty in 1980 due to construction interference during placement of concrete floors and diesel generators (1 of 2 vorking piezometers in Bay 1). For readings after 12/80 see note for PZ 10.

3 PZ 35 - See note for PZ 10.

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