Title: Corrective Action Investigation Plan for Corrective Action Unit 410: Waste Disposal Trenches, Tonopah Test Range, Nevada, Revision 0 (includes ROTCs 1, 2, and 3)

Abstract

This Corrective Action Investigation Plan contains the U.S. Department of Energy, 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) 410 under the Federal Facility Agreement and Consent Order. Corrective Action Unit 410 is located on the Tonopah Test Range (TTR), which is included in the Nevada Test and Training Range (formerly the Nellis Air Force Range) approximately 140 miles northwest of Las Vegas, Nevada. This CAU is comprised of five Corrective Action Sites (CASs): TA-19-002-TAB2, Debris Mound; TA-21-003-TANL, Disposal Trench; TA-21-002-TAAL, Disposal Trench; 09-21-001-TA09, Disposal Trenches; 03-19-001, Waste Disposal Site. This CAU is being investigated because contaminants may be present in concentrations that could potentially pose a threat to human health and/or the environment, and waste may have been disposed of with out appropriate controls. Four out of five of these CASs are the result of weapons testing and disposal activities at the TTR, and they are grouped together for site closure based on the similarity of the sites (waste disposal sites and trenches). The fifth CAS, CAS 03-19-001, is a hydrocarbon spill related to activities in the area. This sitemore » is grouped with this CAU because of the location (TTR). Based on historical documentation and process know-ledge, vertical and lateral migration routes are possible for all CASs. Migration of contaminants may have occurred through transport by infiltration of precipitation through surface soil which serves as a driving force for downward migration of contaminants. Land-use scenarios limit future use of these CASs to industrial activities. The suspected contaminants of potential concern which have been identified are volatile organic compounds; semivolatile organic compounds; high explosives; radiological constituents including depleted uranium, beryllium, total petroleum hydrocarbons; and total Resource Conservation and Recovery Act metals. Field activities will consist of geophysical and radiological surveys, and collecting soil samples at biased locations by appropriate methods. A two-step data quality objective strategy will be followed: (1) define the nature of contamination at each CAS location by identifying any contamination above preliminary action levels (PALs); and, (2) determine the extent of contamination identified above PALs. The results of this field investigation will support a defensible evaluation of corrective action alternatives in the corrective action decision document.« less

Authors:

NNSA/NV

Publication Date:

Tue Jul 16 00:00:00 EDT 2002

Research Org.:

IT Corporation, Las Vegas, NV (US)

Sponsoring Org.:

USDOE National Nuclear Security Administration (US)

OSTI Identifier:

807033

Report Number(s):

DOE/NV-827
TRN: US200307%%242

DOE Contract Number:  

AC08-97NV13052

Resource Type:

Technical Report

Resource Relation:

Other Information: Supercedes report DE00807033; PBD: 16 Jul 2002; PBD: 16 Jul 2002

Country of Publication:

United States

Language:

English

Subject:

11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS; 45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE; 98 NUCLEAR DISARMAMENT, SAFEGUARDS, AND PHYSICAL PROTECTION; 54 ENVIRONMENTAL SCIENCES; BERYLLIUM; CHEMICAL EXPLOSIVES; DEPLETED URANIUM; LAND USE; NEVADA; ORGANIC COMPOUNDS; RESOURCE CONSERVATION; TONOPAH TEST RANGE; WASTE DISPOSAL; WEAPONS; CORRECTIVE ACTION INVESTIGATION PLAN; U.S. DEPARTMENT OF ENERGY, NATIONAL NUCLEAR SECURITY ADMINISTRATION NEVADA OPERATIONS OFFICE; CORRECTIVE ACTION ALTERNATIVES; CORRECTIVE ACTION UNIT; CAU; 410; FEDERAL FACILITY AGREEMENT AND CONSENT ORDER; TTR; NEVADA TEST AND TRAINING RANGE; NELLIS AIR FORCE RANGE; CORRECTIVE ACTION SITE; CAS; TA-19-002-TAB2; DEBRIS MOUND; TA-21-003-TANL; DISPOSAL TRENCH; TA-21-002-TAAL; 09-21-001-TA09; DISPOSAL TRENCHES; 03-19-001; WASTE DISPOSAL SITE; VOLATILE ORGANIC COMPOUNDS; SEMIVOLATILE ORGANIC COMPOUNDS; HIGH EXPLOSIVES; RADIOLOGICAL CONSTITUENTS; RESOURCE CONSERVATION AND RECOVERY ACT; PRELIMINARY ACTION LEVEL; PAL