Third Comprehensive Five-Year Review, Naval Air Weapons Station (NAWS), China Lake, CA.

The purpose of this task order was to evaluate and confirm that remedies, as spelled out in Records of Decision (RODs), remained effective at protecting human health and the environment. The 5-year review included the evaluation of the groundwater remedy at Armitage Field Operable Unit (OU) and Area R OU, and the Site 6 and Site 12 landfill caps.

The purpose of this task order was to evaluate and confirm that remedies, as spelled out in Records of Decision (RODs), remained effective at protecting human health and the environment (e.g., the remedy was operating and functioning as designed, and institutional controls (ICs) were in place and were protective). The 5-year review included the evaluation of the groundwater remedy at Armitage Field Operable Unit (OU) and Area R OU, and the Site 6 and Site 12 landfill caps. GCE reviewed prior RODs, 5-year reviews, soil vapor extraction (SVE) and free product removal (FPR) operation reports, groundwater, landfill, and IC monitoring reports, and conducted interviews to complete the review and report. GCE prepared two fact sheets. The first fact sheet announced the beginning of the 5-year review process. The second fact sheet announced the completion of the 5-year review process. GCE also prepared notifications for publication in the Ridgecrest Daily Independent and News Review. The first notification announced the beginning of the 5-year review process. The second notification announced the completion of the 5-year review process. GCE also hosted and mediated a two-day groundwater partnering meeting between the Navy and the State Regulatory Agencies, and supported RPM and RAB meetings.