IR 05000329/1980004
| ML19309D322 | |
| Person / Time | |
|---|---|
| Site: | Midland |
| Issue date: | 02/27/1980 |
| From: | Gallagher E, Hayes D NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | |
| Shared Package | |
| ML19309D319 | List: |
| References | |
| 50-329-80-04, 50-329-80-4, 50-330-80-04, 50-330-80-4, NUDOCS 8004100252 | |
| Download: ML19309D322 (6) | |
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U.S. NUCLEAR REGULATORY COMMISSION
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OFFICE OF INSPECTION AND ENFORCEMENT
REGION III
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Report Nos. 50-329/80-04; 56-330/80-04 Docket Nos. 50-329; 50-330 License Nos. CPPR-81; CPPR-82 Licensee:
Consumers Power Company 1945 West Parnall Road Jackson, MI 49201 Facility Name: Midland Nuclear Power Plant, Units 1 and 2 Inspection At: Midland Site, Midland, Michigan Inspection on uct d: F,ruary 12-15, 1980
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Approved by:
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E gineering Support Section 1 Inspection Summary Inspection on February 12-15, 1980 (Report Nos. 50-329/80-04; 50-330/80-04 Areas Inspected: Containment prestressing system work procedures, work activities, and quality records (Units 1 and 2); status of soils work activities and site settlement monitoring.
The inspection involved a total of 30 inspector hours by one NRC inspector.
Results: No items of noncompliance or deviations were identified in the areas inspected.
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DETAILS
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Persons Contacted Principal Licensee Employees (CPCo)
T. C. Cooke, Project Superintendent J. L. Corley, Section Head, IE & TV D. E. Horn, Group Supervisor, QAE G. T. Black, Quality Assurance Engineer R. G. Wollney, Group Supervisor, QAE Bechtel Power Corporation A. Boos, Project Field Engineer W. Barclay, Project Field QC E. Smith, Project QA Engineer
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W. Creel, Quality Assurance Engineer R. Schulman, Resident Civil Engineer P. Corchran, Resident Assistant Project Engineer Licensee Action on Previously Identified Items (Closed) Noncompliance (329/79-19-02; 330/79-19-02):
lean concrete back-fill to be used in lieu of safety-related backfill was classified as non "Q" (non-safety related).
Specification C-211, Revision 9 has been changed to require lean concrete backfill shall be made of "Q" material and workmanship" (Section 8.1.2).
The same controls for "Q" listed con--
crete shall apply for batching, placing, and inspecting lean concrete backfill. This item is considered resolved at this time.
Followup on the implementation of the requirements is to be performed during subsequent inspections.
Functional or Program Areas Inspected During this inspection the containment prestressing system procedures, work activities, and quality records were reviewed.
In addition, the monitoring of the site soils settlement was reviewed.
1.
Containment Prestressing System (Unit 2)
a.
Prestressing System Work Activities The inspector observed selected work activities relative to the stressing and greasing operations on the Unit 2 containment.
The following specific items were observed:
(1). Stressing operation: Tendon H-13-227, H-21-227, and H-32-219 were observed being tensioned using calibrated stressing jacks and gauges. The elongation, overstress, and lift off values met the design values. Work was performed in accord-ance with field installation requirements.
Installation of shims and grease cans _ was also properly performed.
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(2) Greasing operation: Tendon H-32-227, H-32-235, H-32-239,
and H-13-227 was observed being greased with tendon casing filler material for corrosion protection. Grease tempera-tures were within the required 140 F and 250 F range. Work was performed in accordance with field installation procedures.
b.
Prestressing System Material Records (1) Tendon casing filler material:
Visconorust 2090P-4 was specified and used as corrosion protective grease material for the tendons.
Specification C-208 requires grease to be tested for physical and chemical properties. One four ounce sample shall be selected for each 100 drums or tank.
Tank trucks are being used at the Midland site. The following lot numbers were reviewed and found to meet the physical and chemical limits for the material:
4046 2879 3335 2609 3122 6012 (2) Field anchor heads: The specification for field anchor heads requires the material to meet the properties of ASTM 322, AISI 4142. A review of the records indicates the following heats of material used for fabrication of the field anchor heads:
Steel Supplier Heat No.
INRYC0 Heat Code Jorgenson 7836 M0 Jorgenson AIC-129 MS Jorgenson A1C-134 MR Jorgenson 15118 MP Jorgenson 15008 MN Bethlehem 182L959 MQ A review of the certified mill test reports for the above heats indicate the physical and chemical properties to meet the designated steel requirements. Heat treatment records were not available on-site and retained by INRYC0 as quality records, c.
Review of Nonconformance Reports As indicated in NRC Inspection Report No. 329/80-01; 330/80-01, the open nonconformance reports were to be reviewed after resolution.
The following nonconformance reports have been reviewed:
i NCR No.
Status 2842 Closed 2757 Closed i
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2750 Closed I-3-l
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NRC No.
Status
2841 Open 2812 Open 2735 Open 2583 Open 2383 Open 2852 Open 2857 Open 2861 Open 2862 Open 2863 Open 2876 Open 2891 Open 2894 Open Nonconformance reports identified as open are to be reviewed during subsequent inspections to review the resolution.
In particular, NCR number 2863 is regarding tendon H-32-231 which has 12 wires with defects. The inspector was told that this tendon was to be rejected and replaced.
d.
Review of Quality Records The inspector reviewed quality records related to the containment prestressing system. The
.sords contain tendon pulling card, buttonheading card, stressing records, and tendon greasing card. The following are the specific records reviewed and findings:
(1) Dome tendons:
(Unit 2)
D-313 through D-316; D-225 through D-228; D-209 through D-212; D-209 has incorrect tendon elongation calculated.
D-109 through D-112; D-105 through D-108 (2) Vertical tendons:
(Unit 2)
V-61 through V-68 V-74, 75, 82, 78, 79, and 109 have the incorrect identifi-cation number for the anchor head and bushings used.
V-80, 85, and 77 required pine jack 9363 or 9365 to be used for stressing while the record indicates jack number 1.
Jack number 1 is also referred to as Prescon jack number 1.
Based on the above, it is apparent that the quality records for the prestressing work activities are not accurate and require to be reviewed. The inspector ascknowledged that a final review had not been performed by quality assurance.
l The inspector indicated that an in process review after
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cach activity should be required in order to prevent in-
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accurate records throughout a work activity and only to l
identify this at the completion of the activity.
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This item is considered to be unresolved pending the licensee
review of the subject records. This area is to be reviewed during a subsequent inspection.
(329/80-04-01; 330/80-04-01)
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No items of noncompliance or deviations were identified in the above areas. One unresolved item has been identified as discussed in paragraph 1.(d.).
2.
Status of Soil Settlement Monitoring The NRC Region III office received Consumers Power Company letter dated February 7, 1980 (Howe-23-80) consitituting final notification of the 50.55(e) issue regarding the Midland site settlement problem.
Resolution of this issue is to occur as a result of the NRC action regarding CPCo ammendment 72 to the application after review and issuance of a Safety Evaluation Report directed specifically to the settlement problem.
Site soils settlement monitoring is continuing.
The following are latest results of the settlement as a result of hydro filling tanks founded on fill material:
a.
Condensate tanks:
Although these tanks are non-safety related they are located near the D. G. Building and founded on fill material. The following are the settlement results after fill-ing the tanks with water:
Tank I.D.
Settlement (Recorded in Feet)
1/12/80 1/18/80 2/4/80
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2T06 STI
.002
.076
.096 ST2
.162
.249
.262 ST3
.145
.223
.233 ST4
.032
.083
.091 Settlement reading on January 12, 1980 was prior to hydro filling of tank; other readings are subsequent to filling tank.
Settlement on
the order of 0.1 ft. or 1 1/4 inches occurred during filling of the tank.
Tank I.D.
Settlement (Recorded in Feet)
1/12/80 1/18/80 2/4/80 1T06 STS
.146
.194
.200 ST6
.190
.264
.267 ST7
.215
.285
.289 ST8
.113
.160
.166 No items of noncompliance or deviations were identified in the above area.
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Unresolved Matters Unresolved matters are matters about which more information is required in order to ascertain whether they are acceptable items, items of noncompliance, or deviations. An unresolved item disclosed during this inspection is discussed in paragraph 1(d.).
Exit Interview The inspectors met with licensee representatives (denoted in the Persons Contacted paragraph) at various times during their inspection activities.
The scope and purpose of the inspections were outlined along with the summarizations of the results of the inspection. The licensee representa-tives acknowledged the indicated results.
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