Abstract
A statistical quality control approachto detect changes in groundwater quality from aregulated waste unit is described. The approachapplies the combined Shewhart-CUSUM control chartmethodology for intrawell comparison of analyteconcentrations over time and does not require anupgradient well. A case study from the U.S.Department of Energy's Hanford Site is used forillustration purposes. This method is broadlyapplicable in groundwater monitoring programs wherethere is no clearly defined upgradient location, thegroundwater flow rate is exceptionally slow, or wherea high degree of spatial variability exists inparameter concentrations. This study also indicatesthat the use of the Data Quality Objectives (DQO)process can assist in designing an efficient andcost-effective groundwater monitoring plan to achievethe optimum goal of both low false positive and lowfalse negative rates (high power).
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References
ASTM: 1996, Provisional Standard Guide for Developing Appropriate Statistical Approaches for Ground-Water Detection Monitoring Programs, PS 64–96, American Society for Testing and Materials, West Conshohocken, Pennsylvania.
Barnett, D. B. and Chou, C. J.: 1998, Groundwater Monitoring Plan for the Hanford Site 216-B-3 Pond RCRA Facility, PNNL-11903, Pacific Northwest National Laboratory, Richland, Washington.
Cameron, Kirk M. D.: 1996, 'RCRA leapfrog: how statistics shape and in turn are shaped by regulatory mandates', Remediation 7(1), 15–25.
Davis, C. B.: 1994, 'Environmental Regulatory Statistics', in: G. P. Patil and C.R. Rao (eds.), Environmental Statistics, Handbook of Statistics, Volume 12, North-Holland, New York, pp. 817–865.
EPA: 1989, Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities Interim Final Guidance, EPA/530-R-93-003, U.S. Environmental Protection Agency, Washington, D.C.
EPA: 1992, Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities – Draft Addendum to Interim Final Guidance, EPA/530-R-93-003, U.S. Environmental Protection Agency, Washington, D.C.
EPA: 1994, Guidance for the Data Quality Objectives Process, EPA QA/G-4, EPA/600/R-96/055, Office of Research and Development, U.S. Environmental Protection Agency, Washington, D.C.
Gibbons, R. D.: 1994, Statistical Methods for Groundwater Monitoring, John Wiley & Sons, New York, New York.
Lucas, James M.: 1982, 'Combined Shewhart-CUSUM quality control schemes', J. Qual. Technol. 14(2), 51–59.
Montgomery, Douglas C.: 1997, Introduction to Statistical Quality Control, 3rd Edition, John Wiley, New York, New York.
RCRA – Resource Conservation and Recovery Act: 1976, Public Law 94–580, as amended, 90 Stat. 2795, 42 USC 6901 et seq.
Starks, Thomas H.: 1989, Evaluation of Control Chart Methodologies for RCRA Waste Sites, EPA/600/4-88/040, U.S. Environmental Protection Agency Office of Research and Development, Las Vegas, Nevada.
Westgard, J. O., Groth, T., Aronson, T., and De Verdier, C.: 1977, 'Combined Shewhart-CUSUM control chart for improved quality control in clinical chemistry', Clinic. Chem. 28(10), 1881–1887.
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Chou, C.J., O'Brien, R.F. & Brent Barnett, D. Application of Intrawell Testing of RCRA Groundwater Monitoring Data When No Upgradient Well Exists. Environ Monit Assess 71, 91–106 (2001). https://doi.org/10.1023/A:1011647913366
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DOI: https://doi.org/10.1023/A:1011647913366