On the design of a sampling plan to verify compliance with EPA standards for radium-226 in soil at uranium mill tailings remedial action sites
This paper discusses design aspects of a two-stage compliance sampling program being developed to verify that removal of soil at windblown uranium mill-tailings sites are results in /sup 226/Ra concentrations that meet Environmental Protection Agency (EPA) standards. In the first stage, gamma scans of surface soil would be conducted over the entire remediated region using a tractor-mounted gamma-ray counting system (RTRAK) to measure /sup 214/Bi (Bismuth), which is an indicator of /sup 226/Ra in soil. In the second stage, composite soil samples would be collected from a systematic sample of 10-m by 10-m plots, where the number of plots is determined using a compliance acceptance sampling plan. These soil samples are analyzed for /sup 226/Ra and compared with the EPA standard of 5 pCi/g above background using a selected statistical rule.
- Research Organization:
- Pacific Northwest Lab., Richland, WA (USA); Weston (Roy F.), Inc., Albuquerque, NM (USA); Chem-Nuclear Systems, Inc., Albuquerque, NM (USA)
- DOE Contract Number:
- AC06-76RL01830
- OSTI ID:
- 5565544
- Report Number(s):
- PNL-SA-15256; CONF-8710245-1; ON: DE88003426
- Resource Relation:
- Conference: ASA/EPA conference on compliance sampling, Washington, DC, USA, 5 Oct 1987; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
29 ENERGY PLANNING
POLICY AND ECONOMY
BISMUTH 214
RADIOECOLOGICAL CONCENTRATION
COMPLIANCE
VERIFICATION
NAI DETECTORS
CALIBRATION
RADIUM 226
DECISION MAKING
DESIGN
MATHEMATICAL MODELS
MILL TAILINGS
PLANNING
REGULATIONS
REMEDIAL ACTION
SAMPLING
SELF-POWERED GAMMA DETECTORS
SOILS
US EPA
WIND
ALKALINE EARTH ISOTOPES
ALPHA DECAY RADIOISOTOPES
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BISMUTH ISOTOPES
ECOLOGICAL CONCENTRATION
EVEN-EVEN NUCLEI
HEAVY NUCLEI
ISOTOPES
MEASURING INSTRUMENTS
MINUTES LIVING RADIOISOTOPES
NATIONAL ORGANIZATIONS
NUCLEI
ODD-ODD NUCLEI
RADIATION DETECTORS
RADIOISOTOPES
RADIUM ISOTOPES
SCINTILLATION COUNTERS
SELF-POWERED DETECTORS
SOLID SCINTILLATION DETECTORS
SOLID WASTES
TAILINGS
US ORGANIZATIONS
WASTES
YEARS LIVING RADIOISOTOPES
510300* - Environment
Terrestrial- Radioactive Materials Monitoring & Transport- (-1989)
052002 - Nuclear Fuels- Waste Disposal & Storage
054000 - Nuclear Fuels- Health & Safety
053000 - Nuclear Fuels- Environmental Aspects
056000 - Nuclear Fuels- Legislation & Regulations- (1987-)
290600 - Energy Planning & Policy- Nuclear Energy
290300 - Energy Planning & Policy- Environment
Health
& Safety
293000 - Energy Planning & Policy- Policy
Legislation
& Regulation