Attachment_10_-_MEC_Completion_Report_Examples.pdf

Description of N-Line MEC Activities

Section1: ESS Compliance Statement.

A: ESS Compliance Statement Contains the ESS Compliance Statement and Description of Activities, which is a brief overview of MEC activities in the N-Line Area.

B: Description of Activities

Section 2: N-Line MEC Sewers Removed Maps.

Section 2: B: N-Line MEC Sewers Removed Map.

This map identifies the MEC sewers removed under the contract. Red lines identify MEC sewers on the contract. Green lines identify sewers that were encountered that were not in the contract.

Section 2: C: N-Line MEC Contamination Map.

Indicates areas where MEC contamination was found and the type of MEC. The bulk of energetic materials encountered in N-line were in the form of JPN propellant. The JPN encountered was in the form of paste, sheets, trimmed ends of propellant grains and chips. Some N-5 was encountered in the Machining and old rework areas, but was usually in the form of pieces and chips from the trimming of grains. Large amounts of MEC were encountered in the sewers in the north extension. With portions of the sewers being 50% full of JPN chips. The Catch Tank Houses (6809-1&2) held considerable amounts of JPN and were thermally decontaminated. Additional sewers B-119’s were found to contain considerable amounts of JPN chips and trimmings. Scaling in the pipes was more common in pipes and on blocks made of concrete. Only minimal amounts of propellants were found in interior pipes in several buildings.

Section 3: MEC Sewer 5X Certification

Contains documentation of 5X certification of MEC sewers.

Section 4: N-Line TD Building 5X Certification:

Contains documentation of the 5X certification of TD buildings and equipment.

Section 5: N-line FR1 Foundation Removed Map This map identifies the FR1 foundations removed under the contract. Green outlines identify FR1 foundations removed. Black outlines identify NFR foundations that were not removed.

Section 6: N-Line, MEC Sampling Results for Sewers and FR1 Foundations

Section 7: N-Line FR1 Foundation WI&PR (FR1 Foundation Removal Checklist)

Section 8: Supplemental Maps supporting MEC Sewer Removal.

SOP-DEM-11, Explosive Characterization of Below Ground Sewer Piping Supplemental Maps Maps supporting the removal of identified MEC sewers and additional sewers encountered.

(Maps not included in the 88 MKM Contract Maps) (NOTE: All Maps in this section are in PDF Format)

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