Roberts, P.V., P.L. McCarty, M. Reinhard, and J. Schreiner. (1980). Organic Contaminant Behavior During Ground Water Recharge. J. Water Pollu. Control Fed. 52: 161- 172. Rogers, R.D., J.C. McFarlane, and A.J. Cross. (1980). Adsorption and Desorption of Benzene in Two Soils and Montmorillonite Clay. Environmental Science & Technology 14: 457-460. Sauty, J.P. (1980). An Analysis of Hydrodispersive Transfer in Aquifers. Water Resources Research 16: 145-158. Sawyer, C.N., and P.L. McCarty. (1967). Chemistry for Sanitary Engineers. New York, NY: McGraw-Hill, Inc. Schellenberg, K., C. Leuenberger, and R.P. Schwarzenbach. (1984). Sorption of Chlorinated Phenols by Natural Sediments and Aquifer Materials. Environmental Science & Technology 18: 652-657. Schmidt, S.K., and M. Alexander. (1985). Effects of Dissolved Organic Carbon and Second Substrates on the Biodegradation of Organic Compounds at Low Concentrations. Applied and Environmental Microbiology 49: 822-827. Shimp, R.J., and F.K. Pfaender. (1985). Influence of Easily Degradable Naturally Occurring Carbon Substrates on Biodegradation of Monosubstituted Phenols by Aquatic Bacteria. Applied and Environmental Microbiology 49: 394-401. Shimp, R.J., and F.K. Pfaender. (1985). Influence of Naturally Occurring Humic Acids on Biodegradation of Monosubstituted Phenols by Aquatic Bacteria. Applied and Environmental Microbiology 49: 402-407. Skopp, J., W.R. Gardner, and E.J. Tyler. (1981). Solute Movement in Structured Soils: Two-region Model with Small Interaction. Soil Sci. Soc. Am. J. 45: 837. Smith, J.A., and J.T. Novak. (1987). Biodegradation of Chlorinated Phenols in Subsurface Soils. Water, Air and Soil Pollution 33: 29-42. Smith, J.H., D.C. Bomberger, and D.L. Haynes. (1980). Prediction of the Volatilization Rates of High- Volatility Chemicals from Natural Water Bodies. Environmental Science & Technology 14: 1332-1337.