1994.
Request for Approval of Areas of Contamination for Investigation and Remediation Actions at Potrillo and Fence Canyon Aggregate Area Excavation Sites
1995.
Submittal of the Response to the Second Notice of Disapproval for the Phase II Investigation Report for Material Disposal Area C and the Phase III Investigation Work Plan for Material Disposal Area C
1997.
Response to Notice of Disapproval Corrective, Measures Evaluation Report (CME) for Material Disposal Area G and Request for Extension to Submit a Revisted Corrective Measures Evaluation Report