ML20090L924

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QA Program Re Soils Placement & Insp
ML20090L924
Person / Time
Site: Midland
Issue date: 07/05/1977
From: Johnson G
CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.)
To:
Shared Package
ML17198A223 List: ... further results
References
CON-BOX-04, CON-BOX-4, FOIA-84-96 F-77-21, NUDOCS 8405260111
Download: ML20090L924 (3)
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Text

{{#Wiki_filter:.__ 3 - - ". Jf4Klackin Q' p.. {yj'.g ~' ' ~ ~ ' ' ' " JFNewgen h./ PLANT: Midland UNIT 1 ?, ' paOcR[ I ger SUBJECT OF AUDIT: Soils Placement h and Insoectionl h ' OA SUSJ FILE t s. I. AUDIT SCOPE lt The purpose of this audit is to verify that soils placement and inspection are being accomplished in accordance with Bechtel's procedures, specifications and codes. II. AUDITOR q G. B. Johnson, CPCo Field Quality Assurance Enginee'r (Civ., JUI. 0 61077 COR III. PERSONNEL CONTACTED BECHTE!. POWER Jc5 7220

    • Ben Cheek, Bechtel Lead Civil Quality Control En ineer m
  • Daryle Osborn, Bechtel Quality Control Engineer Civil)

IV.

SUMMARY

OF AUDIT A. A Pre-Audit Conference was held on May 23, 1977 at Daryle Osborn's desk with those in attendance as noted in Sections II and III above. The A d audit scope was the only item discussed. cut 2 jp 4 B. ~ U^I I4! The audit was performed on the placement and inspection of zone 2 material in the plant area South of the Turbine Building at elevations 620' - 622'. wit f ". The backfilling operation was centered around plant coordinates S 5070 and E 36Q., The attached checklist was used. , [R C. The soils placement and inspection seemed adequate except as described in .5:rt rep M. ?!r:G j

'ECT.

j ll D. Future audits will be run the same, when scheduled. !N I E. A Post-Audit Conference was held on June 16, 1977 in Ben Cheek's office .EC'Y ! !l with those in attendance as noted in Sections II and III.above. The Post-1 tsii5 l iAudit Conference consisted of telling Ben Cheek and Daryle Osborn that the I results of this audit were adequate except for Findings #1 t. f2 in.Section CLOSED OUT c<- l V. FINDINGS y i 'c fy. '~~, . ~ Finding #1 /r j Bechtel Specification 7220-C-210, Rev. 4, Section 12.6.1, states in part: 4 The water content during compaction shall not be more than 2 percentage i points below optimum moisture content and shall not be more than 2 l pe'rcentage points above optimum moisture content....... i SB125560 i d

  • Attended Pre-Audit Conference and Post-Audit Conference
    • Attended Post Audit Conference f ey Md>. !dW DATE G ib 1 7 7 SHEET.

1 OF 3 8405260111 840517 / PDR FOIA RICE 84-96 PDR

.T Plant: 'idland 1 & 2 Subject sf Audit: Soils Placement tand Inspection' Report No F-77-21 CLOSED OUT V. FINDINGS Finding #1 (Contd) Contrary to These Requirements: N 1 Backfill was placed on.a lift which was determ'ined to be greater than 2% below optimum moisture content (Plant Backflill Test #1352, optimum 15.2%, actual 12.8%). WWnastioned. %= ca'-'- d E::'#-~ 'h= "#S e O,$IIThh)2 5b_5 '"4 ~ m-Recommended Corrective Action: 4-l. The Foreman directing the soils work should be instructed as to the required moisture content limits. 2. Bechtel QC should determine if a re-test had bee'n accomplished on the lift in question. If a re-test had not been. accomplished.it will be necessary to obtain one. If the affected m.aterial is found to be nonconforming', gn evaluation will have to 'be inade tas to the acceptability of the in-place material by Project Engineering. Corrective Action Taken: 1. Bechtel QC informed the foreman directing the soils work of the required moisture content limits and what to do if a failing test o'ccurs. ~ p 2. A retest was taken in the area and the retest passed (Plant Backfill 1 Test 1414). I Finding #2 Bechtel Specification C-208, Rev.10, Table 9-1,, states in part: ~ 1 Field Dansities and Moisture Contents wi11. be taken at the frequency of l one test per every 500 cubic yards of, fill. i i Contrary to These Requirements: During the audit it was discovered that the Foreman directing the soils work M :;c:' +b + +% m "#

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' :'d fx ;:.,, and moisture content was one test per 1000 cubic yards of fill. . Recommended Corrective Action: i 1. The foreman directing the s' oils work should be instructed as to the correct test frequency requirements. S3 '%5c3 Sheet 2 of. 3 1

Inspection Report No F-77-21 Ct.0 SED OUT' V. FINDI.'1GS i Findino #2 (Contd) Recommended Corrective Action: (Contd) 2. Bechtel QC should determine if the 1/500 cy test frequency has been exceeded. If the test frequency has been exceeded, an evaluation will have to be made as to the acceptability of the in-place material by Project Engineering. Corrective Action Taken: 1. Bechtel QC informed the foreman directing the soils work of the correct test frequency requirements. 2. Bechtel QC made an evaluation concerning the frequency of testing in the affected area. It was determined that between 5/13/77 and 6/17/77,18,200 cy of random backfill was placed South and East of the Turbine Building. 57 tests were taken on this material which results in an overall test frequency of 320 cy/ test. The majority ~ of this 18,200 cy wai; placed in a M0t.(-Q area. VI. NONCONFORMANCE REPORTS None l QcI - T. R.. ut e < kl p au y -{. I. u s tesf iq wa as +- tse wan t v/e m 's s fim ) 3-fann kup.s fraad af yarA*S c~ /,,f w,, m

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