Regulatory acceptance of the proposed well abandonment program for the present landfill, Operable Unit 7, Rocky Flats Environmental Technology Site, Golden, Colorado
The regulatory agencies approved a well abandonment program for the Present Landfill, Operable Unit (OU) 7 at the Rocky Flats Environmental Technology Site, only three months after preparation. The proposed well abandonment program consists of abandoning 26 of the 54 existing monitoring wells in OU 7 that are currently sampled quarterly as Resource Conservation and Recovery Act (RCRA) compliance wells or sitewide groundwater protection wells. Well abandonment was proposed on the basis that the purpose of each well has been fulfilled, the wells fall under the footprint of the landfill cap, the presence of the wells would compromise the integrity of the cap because holes would have to be cut in the synthetic liner, and unequal compaction of the fill material around the wells would potentially cause differential settlement of the cap. The proposal provided the technical justification to abandon the wells in place. The timely approval of the proposal by the regulatory agencies will allow the abandonment of the wells during fiscal year 1995 under the sitewide Well Abandonment and Replacement Program (WARP). Cost savings resulting from a decrease in the number of wells to be sampled under the groundwater monitoring program are estimated at $416,000 per year. This paper presents a summary of the well abandonment program, discusses the timely approvals required for implementation, and present the potential cost savings that can be achieved through implementation of the program.
- Research Organization:
- Rocky Mountain Remediation Services, Golden, CO (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC34-90RF62349
- OSTI ID:
- 95210
- Report Number(s):
- RFP-4942; CONF-950868-2; ON: DE95015187; TRN: 95:019260
- Resource Relation:
- Conference: ER `95: environmental remediation conference: committed to results, Denver, CO (United States), 13-18 Aug 1995; Other Information: PBD: [1995]
- Country of Publication:
- United States
- Language:
- English
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