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The surficial aquifers in Midwestern states that border the Ohio River and are east of the Mississippi River are similar to those described previously, but are primarily of glacial origin. These aquifers are very productive (1,000 gallons per minute) and supply almost 50 percent of the fresh groundwater produced in the region. The course-grained aquifers are divided into two categories: • Deposits at or near the land surface occurring in stream and river valleys. • Deposits buried by a layer of fine-grained material that occur in former river valleys cut into bedrock and filled with coarse-grained glacial outwash. The sands and gravels range in thickness from less than 100 to over 600 ft in some buried bedrock valleys. Large yields are possible from wells completed in the glacial outwash aquifers that are hydraulically connected to streams, rivers, and lakes, and the wells are sufficiently close to the surfacewater body (Lloyd and Lyke, 1995). Communities located near rivers such as the Illinois, Kaskaski, Wabash, White, Kankakee, Maumee, Great Miami, and Scioto rivers could benefit from RBF. Valley-fill glacial aquifers also occur in the Northeastern United States. While extensive, the aquifer thickness and productivity is less than those occurring in Midwestern states (Olcott, 1995). In general, the valley-fill aquifers are less common along major streams and rivers, so the potential for RBF is considered lower than in the Midwestern United States. Alluvial aquifers occur along streams and rivers in the Northwestern states, but sparse population and relatively low water demands can be met through either surface-water intakes or groundwater wells. In the arid Southwest, few major rivers or streams are perennial, thereby limiting RBF potential. Water supplies in Gulf Coast states are met through groundwater withdrawals from productive regional aquifers and surface water. In the Piedmont region, water needs are met through surface water, as rainfall is usually adequate to meet demands and aquifers are fractured crystalline rock, which are not considered viable RBF areas. REFERENCES Eckert, P., C. Blomer, J. Gothardt, S. Kamphausen, D. Liebich, and J. Schubert (2000). “Correlation between the Well Field Catchment and Transient Flow Conditions.” Proceedings, International Riverbank Filtration Conference, November 2 - 4, Dusseldorf, Germany. Lloyd, O.B., and W.L. Lyke (1995). “Ground Water Atlas of the United States, Segment 10 - Indiana, Illinois, Kentucky, Ohio.” U.S. Geological Survey Hydrologic Investigations Atlas 730 -K. Miller, J.A., and C.L. Appel (1997). “Ground Water Atlas of the United States, Segment 3- Kansas, Missouri, Nebraska.” U.S. Geological Survey Hydrologic Investigations Atlas 730 -D. Olcott, P.G. (1995). “Ground Water Atlas of the United States, Segment 12 - Connecticut, Maine, Massachusetts, New Hampshire, New York, Rhode Island, Vermont.” U.S. Geological Survey Hydrologic Investigations Atlas 730 -J. Olcott, P.G. (1992). “Ground Water Atlas of the United States, Segment 12 - Iowa, Michigan, Minnesota, Wisconsin.” U.S. Geological Survey Hydrologic Investigations Atlas 730 -M. Schubert, J. (2000). “How Does it Work: Field Studies on Riverbank Filtration.” Proceedings, International Riverbank Filtration Conference, November 2 - 4, Dusseldorf, Germany. Todd, D.K. (1980). Groundwater Hydrology, John Wiley & Sons, New York. United States Geological Survey (1965). Productive Aquifers in the Conterminous United States, United States Geological Survey. Wang, J.Z., S.A. Hubbs, and R. Song (2002). Evaluation of Riverbank Filtration as a Drinking Water Treatment Process, American Water Works Association Research Foundation and American Water Works Association. 171
172 LEO GENTILE is Senior Hydrogeologist and Group Manager with Jordan, Jones & Goulding in Atlanta, Georgia. He has a broad range of experience in applied geology and hydrogeology in the United States. His background includes over 20-years of experience in technical support and management on a broad range of projects, including waterresources development, remedial investigations, and feasibility studies at Comprehensive Environmental Resource Compensation and Liability Act sites; Resource Conservation and Recovery Act facility investigation and closure; investigation and remediation of agricultural chemical sites; and assessments and reclamation for mining and petroleum-related sites. Gentile received a B.S. in Geology/Mineralogy from Ohio State University, an M.S. in Petroleum Geology from Oklahoma State University, and an MBA in Enterprise Risk Management/Finance from Georgia State University. He is a Registered Professional Geologist in seven states and Puerto Rico, and is a Certified Professional Geologist by the American Institute of Professional Geologists.
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2RBF The National Water Research In
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Published by the NATIONAL WATER RES
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Foreword In 1999, the National Wate
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vi 1:30 pm Session 3B: Hydraulic As
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viii 1:15 pm Session 8: Emerging Co
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Acronyms ADA ß-alaninediacetic aci
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Conference Abstracts
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2 conventional treatment train on c
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4 The Louisville Water Company also
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6 Treatment Capital Cost Annual O&M
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8 design engineers needed to addres
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10 Ohio River Pump Station Collecto
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12 Figure 4. Wet/dry tunnel concept
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14 The turbidity of well water is t
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Session 2: Operations Construction
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Land Surface lengths of well screen
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Summary Well systems can be constru
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24 Traditionally, ASR has been used
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26 plans for a pilot-scale bank-fil
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Session 2: Operations Evolution fro
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Today, Cedar Rapids obtains all of
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REFERENCES AND ACKNOWLEDGEMENTS The
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36 source of most nitrate detected
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38 Hallberg, G.R., D.G. Riley, J.R.
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40 Two 10-MGD capacity pumps were i
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Session 3: Hydraulic Aspects Pluggi
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iverbed scouring. This analysis sho
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REFERENCES Schafer, D.C. (2003).
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50 TS GWA Tegel TS Wannsee TS Tegel
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52 contains the lowest concentratio
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54 δ 18 O [ 0⁄00 versus Standard
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56 Acknowledgements We would like t
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58 Phase 1 Investigations Once the
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60 pumping is discontinued and the
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Session 4: Siting Water-Quality Man
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Torgau Case Study The highly produc
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The mean concentration in the “mi
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Session 5: Dynamics Using Models to
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source of induced infiltration to t
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affect the amount of contaminant en
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intuitive system behavior. In the c
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entering the well can be carried ou
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Ray, C., T.W. Soong, Y.Q. Lian, and
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82 Riverbank Filtration Near Torgau
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84 drinking-water quality. Drinking
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Session 5: Dynamics Temporal Change
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• Equalization of fluctuating con
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Session 5: Dynamics An Update of th
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Session 5: Dynamics On Bank Filtrat
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Figure 2. Streamlines for two wells
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well galleries near the Unterhavel
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Dinner Presentation Hydraulic Sensi
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conductivity k (especially of the r
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parameter value: Figure 6. Initial
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Keynote Presentation Riverbank Filt
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esulted in a significant improvemen
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Fritz, B. (2002). Uferfiltration un
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Session 6: Microorganisms Using Mic
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was independent of finished water t
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Session 6: Microorganisms Transport
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Session 6: Microorganisms Laborator
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Cryptosporidium are unreliable, lab
Page 138 and 139: Pathogen Concentration (pathogens/1
Page 140 and 141: Session 6: Microorganisms Fate of D
Page 142 and 143: treatment train optimized for turbi
Page 144 and 145: Acknowledgements We gratefully ackn
Page 146 and 147: Session 6: Microorganisms Assessmen
Page 148 and 149: screens along the entire lateral le
Page 150 and 151: Table 3. Average Distribution of Ri
Page 152 and 153: Location Number of Sampling Events
Page 154 and 155: Session 7: Organics Removal Riverba
Page 156 and 157: uncontaminated groundwater could le
Page 158 and 159: Sacher, F., H.-J. Brauch, and W. K
Page 160 and 161: Session 7: Organics Removal Organic
Page 162 and 163: TOC (mg/L) 9 8 7 6 5 4 3 2 1 Site 1
Page 164 and 165: Conclusions RBF is very effective i
Page 166 and 167: Lunch Presentation Potential Uses o
Page 168 and 169: Session 8: Emerging Contaminants Re
Page 170 and 171: H 3C O O N N H3C N CH3 Cl AMDOPH Be
Page 174 and 175: Results and Conclusion The Santa An
Page 178 and 179: echarge is not well understood. Our
Page 182 and 183: The MS conditions were as follows:
Page 184 and 185: Session 9: Public Policy and Regula
Page 186 and 187: FEET 1,000 900 800 700 600 VERTICAL
Page 194 and 195: that multiple samples should be eva
Page 196 and 197: turbidity. Endospores, Giardia, Cry
Page 198 and 199: Session 9: Public Policy and Regist
Page 200 and 201: For the first phase of the Dyje Pro
Page 202 and 203: Concentration mg.l 1 60 50 40 30 20
Page 204 and 205: Session 11: Case Studies “Lessons
Page 206 and 207: Concentration (mg/L) 35 30 25 20 15
Page 208 and 209: REFERENCE Koterba, M.T, F.D. Wilde,
Page 212 and 213: REFERENCES Laszlo , F., and Z. Homo
Page 216 and 217: Figure 2. A sketch of the study are
Page 218 and 219: By analyzing the δ 15 N-NO 3 of si
Page 222 and 223: Microbial growth was weak in all la
Page 226 and 227: Objectives The aim of the study was
Page 228 and 229: 6000 4000 2000 Suspended Solids (mg
Page 230 and 231: REFERENCES American Public Health A
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