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Title: Corrective Action Investigation Plan for Corrective Action Unit 527: Horn Silver Mine, Nevada Test Site, Nevada: Revision 1 (Including Records of Technical Change No.1, 2, 3, and 4)

Corrective Action Investigation Plan for Corrective Action Unit 527: Horn Silver Mine, Nevada Test Site, Nevada: Revision 1 (Including Records of Technical Change No.1, 2, 3, and 4) This Corrective Action Investigation Plan contains the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Operations Office's approach to collect the data necessary to evaluate corrective action alternatives appropriate for the closure of Corrective Action Unit (CAU) 527, Horn Silver Mine, Nevada Test Site, Nevada, under the Federal Facility Agreement and Consent Order. Corrective Action Unit 527 consists of one Corrective Action Site (CAS): 26-20-01, Contaminated Waste Dump No.1. The site is located in an abandoned mine site in Area 26 (which is the most arid part of the NTS) approximately 65 miles northwest of Las Vegas. Historical documents may refer to this site as CAU 168, CWD-1, the Wingfield mine (or shaft), and the Wahmonie mine (or shaft). Historical documentation indicates that between 1959 and the 1970s, nonliquid classified material and unclassified waste was placed in the Horn Silver Mine's shaft. Some of the waste is known to be radioactive. Documentation indicates that the waste is present from 150 feet to the bottom of the mine (500 ft below ground surface). This CAU is being investigated because hazardous constituents migrating from materials and/or wastes disposed of in the Horn Silver Mine may pose a threat to human more » health and the environment as well as to assess the potential impacts associated with any potential releases from the waste. The results of this field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document. « less
Authors:
Publication Date:
OSTI Identifier:OSTI ID: 818649
Report Number(s):DOE/NV--856--REV. 1
TRN: US200415%%399
DOE Contract Number:AC08-97NV13052
Resource Type:Technical Report
Resource Relation:Other Information: Supercedes report DE00818649; PBD: 6 Dec 2002; PBD: 6 Dec 2002
Research Org:Stoller-Navarro Joint Venture (US); Nevada Test Site, Mercury, NV (US)
Sponsoring Org:USDOE Office of Environmental Management (EM) (US)
Country of Publication:United States
Language:English
Subject: 54 ENVIRONMENTAL SCIENCES; CLOSURES; DOCUMENTATION; EVALUATION; NEVADA TEST SITE; ORDERS; SECURITY; SILVER; WASTES CAIP; CAU 527; CAS 26-20-01; HORN SILVER MINE; CONTAMINATED WASTE DUMP #1; CAU 168; CWD-1; WINGFIELD MINE; WAHMONIE MINE; NEVADA TEST SITE; NTS; FFACO