Sources of lead in drinking water are primarily lead pipe, lead/tin solder, and brass fixture materials.
Lead levels in the water depend upon many solubility factors, such as pH, concentrations of substances such as inorganic carbonate, orthophosphate, chlorine, and silicate, the temperature, the nature of the pipe surface, etc. Physical factors, time, and chemical mass transfer are significant in governing lead levels in nonequilibrium systems. The diameter and length of lead pipe is extremely important, as well as the age and chemical history of the solder and brass fixtures. Analytical variability is not particularly significant relative to between-site and within-site variability. Knowledge of temporal variability at each site is necessary to define a statistically valid monitoring program. An analysis of published data covering repetitive measurements at a given site show that the variability of lead concentration at each site tends to be characterized by the frequent occurrence of ‘spikes’. Variability expressed as approximate relative standard deviations tends to be of about 50 to 75% in untreated water, regardless of the mean lead concentration. The distributions are frequently nonnormal for small numbers of samples. Monitoring programs must incorporate controls for the causes of the within-site and between-site variability into their sampling design. The determination of necessary sampling frequency, sample number, and sample volume must be made with consideration of the system variability, or the results will be unrepresentative and irreproducible.
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American Chemical Society Committee on Environmental Improvement: 1983, ‘Principles of Environmental Analysis’, Analytical Chemistry 55, 14, 2210.
American Society for Testing and Materials: 1983, ‘Standard Practice for Intralaboratory Quality Control Procedures and a Discussion on Reporting Low-Level Data’, Annual Book of ASTM Standards, Vol. 11.01, D4210–83.
Ahmadi, A. B.: 1981, ‘Effects of Water Quality Parameters on Corrosion of Mild Steel, Copper and Zinc’, Ph.D. Dissertation, University of Florida, Gainesville.
Bailey, R. J. et al.: 1986, ‘Lead Concentration Tid Stagnation Time in Water Drawn Through Lead Domestic Pipes’, Water Research Centre Technical Report TR 243.
Bailey, R. J. and Russel, P. F.: 1981, ‘Predicting Drinking Water Lead Levels’, Environ. Technol. Letters 2, 57.
Birden, H. H. Jr. et al.: 1985, ‘Lead Dissolution from Soldered Joints’, Jour. AWWA 77, 11, 66.
Britton, A. end Richards, W. N.: 1981, ‘Factors Influencing Plumbosolvency in Scotland’, Jour. Inst. Water Engr. and Scientists 35, 4, 349.
Cox, D. D.: 1988, ‘Personal Communication’, University of Illinois Statistics Office, Champaign, Illinois.
Gregory, R. and Jackson, P. J.: 1984, ‘Central Water Treatment to Reduce Lead Solubility’, Proc. AWWA Annual Conf., Dallas, TX, June.
James M. Montgomery, Consulting Engineers, Inc.: 1983, Internal Corrosion Mitigation Study Addendum Report, Prepared for the Bureau of Water Works, Portland, OR.
Karalekas, P. C. Jr. et al.: 1976, ‘Lead and Other Trace Metals in Drinking Water in the Boston Metropolitan Area’, Jour. NEWWA 90, 150.
Karalekas, P. C. Jr. et al.: 1983, ‘Control of Lead, Copper, and Iron Pipe Corrosion in Boston, Jour. AWWA 75, 2, 92.
Keller, B.: 1987, ‘Personal Communication’, Analytical Chemistry Laboratory Unit, Illinois State Water Survey, Champaign, Illinois.
Kuch, A. and Wagner, I.: 1983 ‘A Mass Transfer Model to Describe Lead Concentrations in Drinking Water’, Water Res. 17, 10, 1303.
Lacey, R. F. and Jolly, P. K.: 1986, ‘Sampling for Household Water-Lead’, Water Research Centre Technical Report tr 244.
Lyon, T. D. B. and Lenihan, J. M. A.: 1977, ‘Corrosion in Solder Jointed Copper Tubes Resulting in Lead Contamination of Drinking Water’, Br. Corros. Jour. 12, 1, 41.
Mattsson, E.: 1980, ‘practical Experience in Relation to Basic Data’, Br. Corros. Jour. 15, 1, 6.
Miller, I. and Freund, J. E.: 1985, ‘Probability and Statistics for Engineers’, Third Edition, Prentice-Hall, Inc., Englewood Cliffs, NJ.
Moore, M. R.: 1973, ‘Plumbosolvency of Waters’, Nature 243, 222.
Murrell, N. E.: 1985a, ‘Summary of Impact of Metallic Solders on Water Quality’, Plumbing Materials and Drinking Water Quality, Proceedings of a Seminar, Cincinnati, Ohio, May 16–17, EPA 600/9-85/007.
Murrell, N. E.: 1985b, ‘Impact of Lead Solder and Lead Pipe on Water Quality’, 1985 Annual Conference Proceedings, Washington, D.C., June 1985, American Water Works Association.
Neff, C. H., Schock, M. R., and Marden, J. I.: 1987, ‘Relationships Between Water Quality and Corrosion of Plumbing Materials in Buildings’, Project Report for Grant No. CR80856010, USEPA, EPA/600/S2-87/036.
Oliphant, R.: 1978, ‘Dezincification of Potable Water of Domestic Plumbing Fittings: Measurement and Control’, Water Research Centre Technical Report TR88.
Oliphant, R.: 1983, ‘Summary Report on the Contamination of Potable Water by Lead from Soldered Joints’, Water Research Centre External Report 125E.
Patterson, J. W., and O'Brien, J. E.: 1979, ‘Control of Lead Corrosion’, Jour. AWWA 71, 5, 264.
Richards, W. N. et al.: 1980, ‘Reducing Plumbosolvency—The Effect of Added Lime on the Loch Katrine Supply to Glasgow’, Jour. Inst. Water Engr. and Scientists 34, 4, 315.
Schaut, G. C.: 1942, ‘The Action of a Chlorinated Water Supply Upon Lead Pipe’, Amer. Jour. Pharm.,2441–249.
Schlotzhauer, S. D. and Littell, R. C.: 1987, SAS System for Elementary Statistical Analysis, SAS Institute Inc., Cary, NC.
Schock, M. R.: 1980, 1981, ‘Response of Lead Solubility to Dissolved Carbonate in Drinking Water’, Jour. AWWA 72, 12, 1695, 73, 3, 36 [News].
Schock, M. R. and Gardels, M. C.: 1983, ‘Plumbosolvency Reduction by High pH and Low Carbonate-Solubility Relationships’, Jour. AWWA 75, 2, 87.
Schock, M. R. and Neff, C. H.: 1988, ‘Trace Metal Contamination from Brass Fittings’, Jour. AWWA 80, 11, 47.
Schock, M. R. and Wagner, I.: 1985, ‘The Corrosion and Solubility of Lead in Drinking Water’, Chapter 4 in Internal Corrosion of Water Distribution Systems, AWWARF/DVGW-Forschungsstelle Cooperative Research Report.
Schock, M. R., Levin, R., and Cox, D. C.: 1988, ‘The Significance of Sources of Temporal Variability of Lead in Corrosion Evaluation and Monitoring Program Design’, Proc. AWWA WQTC, St. Louis, MO, Nov.
Sharrett, A. R. et al.: 1982, ‘Daily Intake of Lead, Cadmium, Copper, and Zinc from Drinking Water: The Seattle Study of Trace Metal Exposure’, Envir. Res. 28, 456.
Snoeyink, V. L. and Jenkins, D.: 1980, Water Chemistry, John Wiley and Sons, New York, 463 pp.
Taylor, J. K.: 1987, Quality Assurance of Chemical Measurements, Lewis Publishers.
Treweek, G. P. et al.: 1985, ‘Pilot-Plant Simulation of corrosion in Domestic Pipe Materials’, Jour. AWWA 77, 10, 74.
Walker, G. D.: 1977, ‘An SEM and Microanalytical Study of In Service Dezincification of Brass’, NACE Corrosion 33, 7.
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Schock, M.R. Causes of temporal variability of lead in domestic plumbing systems. Environ Monit Assess 15, 59–82 (1990). https://doi.org/10.1007/BF00454749
- Temporal Variability
- Monitoring Program
- Lead Concentration
- Lead Level
- Analytical Variability