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American Water Works Association W W a a t t e e r r Q Q u u a a l l i i t t y y T T e e c c h h n n o o l l o o g g y y C C o o n n f f e e r r e e n n c c e e a a n n d d E E x x p p o o s s i i t t i i o o n n 2 2 0 0 0 0 7 7 “Fast Tracks to Water Quality” November 4-8, 2007 Charlotte, North Carolina, USA Volume 1 of 6 Printed from e-media with permission by: Curran Associates, Inc. 57 Morehouse Lane Red Hook, NY 12571 www.proceedings.com ISBN: 978-1-60560-049-9 Some format issues inherent in the e-media version may also appear in this print version.

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Page 1: Water Quality Technology Conference and Exposition 2007toc.proceedings.com/02520webtoc.pdf · Water Quality Technology Conference and Exposition ... Water Quality Technology Conference

American Water Works Association

WWaatteerr QQuuaalliittyy TTeecchhnnoollooggyy CCoonnffeerreennccee aanndd EExxppoossiittiioonn

22000077

“Fast Tracks to Water Quality”

November 4-8, 2007 Charlotte, North Carolina, USA

Volume 1 of 6

Printed from e-media with permission by:

Curran Associates, Inc. 57 Morehouse Lane

Red Hook, NY 12571 www.proceedings.com

ISBN: 978-1-60560-049-9

Some format issues inherent in the e-media version may also appear in this print version.

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Copyright Policy

The American Water Works Association (AWWA) is dedicated to the promotion of public health and welfare in the provision of drinking water of unquestionable quality and sufficient quantity. To fulfill this mission, the content of this web site is dedicated to advancing to our members, as well as the public, the technology, science, management, and government policies relative to the stewardship of water. However, to protect the value of our member benefits, AWWA must enforce the following restrictions with regard to the information provided on this web site.

Copyright

Copyright © 2007 American Water Works Association. All rights reserved.

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American Water Works Association

Water Quality Technology Conference and Exposition 2007

TABLE OF CONTENTS

VOLUME 1

CONVENTIONAL RESIDUALS MANAGEMENT AND REUSE/RECYCLING Studying Seasonal Variations of Aluminium and Other Residuals at Water Treatment Plants Using Aluminium-based Coagulants.................................................................. 1

D. Berube, C. Dorea

Underground Injection Wells for the Disposal of Drinking Water Treatment Residuals ........................................................................................................................................... 10

C. Sham

Possibilities of Recycling And/or Discharge of Waste Waters Originated from Conventional Surface Water Treatment.......................................................................................... 46

A. Lerch, V. Bagehorn, K. Schurz, W. Uhl

TASTE AND ODOR POSTERS

Public Outreach Tool Used in Determining Customer Preferences Determining of Water Aesthetics ............................................................................................................................... 52

J. Biggs, T. Thomure, K. Arnold, C. Cotton

Computer Aided Source Water Monitoring For Quality and Security Optimization .................. 81D. Kroll, K. King, K. Craig, G. Klein

Identifying the Best Treatment Approach Using Focused Laboratory-Scale Testing ............................................................................................................................................... 91

P. Swaim, I. Najm, G. Briest, N. Brown, T. Maloney, K. Martin

Formation of Iodinated Organic Compounds on Manganese Dioxide ...................................... 105S. Allard, R. Nicolau, H. Gallard

PROCESS OPTIMIZATION OF EXISTING AND FUTURE WTPS

The Drinking Water Treatability Database.................................................................................... 114

R. Miltner, C. Hill, T. Speth

Disinfection with Sonication – Impact on Trihalomethane Formation Potential...................... 125J. Plummer, E. Ringer

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Enhanced Rapid Organic Characterisation Techniques to Assess NOM Treatability ....................................................................................................................................... 129

C. Chow, R. Fabris, M. Drikas

DISTRIBUTION SYSTEM POSTERS

Black Specks in LCSA’s, VA Water Distribution System............................................................ 154

B. Wright, G. Iversen, W. Becker, M. Bishop, T. Danielson, R. Mowe

Early Warning Biomonitor Used for Testing a Set-up of European Environmental Technology Verification Programme. ........................................................................................... 184

J. Appels

Practical Evaluation of Corrosion Before Water Quality Changes ............................................ 187B. Rosenfeldt, M. Bishop, G. Iversen, S. Drew, J. Scher, T. Broome

Improving Hydraulic Mixing in a 90-Year Old 10.5 MG Reservoir With I/O Redesign .............. 197B. Murphy, A. Peck, J. Dummer, P. Van Duser

The Influence of Water Chemistry on Dissolution Rates of Lead Corrosion Products ………204J. Noel, D. Giammar

Developing a Pressure Management Strategy to Protect Water Quality .................................. 221K. Fleming

Using Microfiltration and Nanofiltration to Remove TOC and Meet DBP Regulations in Yucaipa, California................................................................................................ 236

R. Stratton, J. Zoba

On-line Monitoring of Drinking Water Treatment Efficacy Using UV/Vis-spectrometry ................................................................................................................................... 249

J. Van Den Broeke, P. Ross, A. Van Der Helm, L. Rietveld

DISINFECTION STRATEGIES

Tracking Utility Disinfection over Four Decades of Change, Disinfection Survey 2007-Preliminary Summary ............................................................................................................ 260

J. Routt, E. Mackey, E. Whitby, G. Connell, L. Passantino, R. Noak

Development and Application of a QMRA Model for Process Evaluation and Selection .......................................................................................................................................... 277

M. Prevost, K. Jaidi, P. Payment, B. Barbeau

Chlorine Dioxide Proves Feasible for Mitigating Drought Related Raw Water Quality Changes at 890-MGD Municipal Water District............................................................... 292

T. Cooke

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FILTRATION POSTERS

Optimizing Water Treatment to Respond to Quality Changes Due to Reservoir Management and Climate Change ................................................................................................ 317

I. Slavik, W. Uhl

Startup and Operating an Arsenic Treatment Technology......................................................... 326H. Durbin III, D. Williams

Bench-and Pilot-Scale Arsenic Removal Study of Coagulation/Filtration and Adsorption Technologies............................................................................................................... 360

W. Lee, T. Galeziewski, P. Westerhoff

Achieving the Critical Balance in Chlorine Dioxide Levels with Accurate Monitoring Practices....................................................................................................................... 373

V. Malkov, M. Sadar

An Advanced Monitoring & Control System for An Advanced Monitoring & Control System for.......................................................................................................................... 382

D. Kim, H. Oh, T. Hwang, S. Lee

Developing a Contingency Plan and Response Strategy for a 160 MGD Direct Filtration Facility ............................................................................................................................. 389

D. Williams, B. Zachman, C. Seidel, H. Durbin, L. Devkota

Appliication of Floc Size Analyzer for the Efficiency Assessment of Flocculation Process ............................................................................................................................................ 429

J. Jung, T. Hwang, H. Oh

Effects of Pre-Treatment Conditions and Media Type on the Hydraulic Behavior of Deep Bed Rapid Filters Treating Public Water Supplies ............................................................ 434

S. Abreu, N. Brinck, S. Filho

CURRENT APPLICATIONS OF RIVERBANK FILTRATION

Removal of Perchlorate Through Riverbank Filtration and Aquifer Recharge and Recovery: Benefits of Water Treatment Residual ....................................................................... 452

M. Yarkin, K. Daver, K. Carlson

Riverbank Filtration for SWTR Compliance-Kennewick, Washington ...................................... 469W. Gollnitz, J. Clancy, M. Cunnane, B. Beauchene

Framework for Assessing Feasibility of Riverbank Filtration For Water Treatment ............... 473S. Sharma, D. Chaweza, E. Holzbecher, G. Amy

LABORATORY POSTERS

In Vitro Assessment of Thyroid and Estrogenic Endocrine Disruptors in WWTPs and Surface Waters in the Great Paris (France) Area ................................................................. 490

M. Jugan, M. Bimbot, V. Huteau, L. Oziol, S. Karolak, Y. Levi

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A Simple and Rapid F+ Coliphage Detection and Serotyping System for Water Quality Monitoring .......................................................................................................................... 493

D. Love, M. Sobsey

Impact of Sample Storage and Acid Preservation on Toc Measurement ................................. 498C. Westbrook, E. Milks, M. Stoner, D. Heza, S. States

Voluntary Environmental Compliance: Using Influential Tactics and Motivation to Gain Compliance............................................................................................................................. 505

L. Phillips, C. Bishop, P. Scheuerman

VOLUME 2

Reduction of Nitrate Through the Use of Nitrate Reductase for the SmartChem Autoanalyzer.................................................................................................................................... 649

B. Almassalkhi, K. Kelty

Automated IMS using the Dynal® BeadRetrieverTM for the detection of Giardia and Cryptosporidium (oo)cysts from environmental water samples ........................................ 653

S. Jones, D. Barton, D. Wareing, J. Meegan, B. Strohecker

Protein Assay in Drinking Water and Reclaimed Water.............................................................. 663W. Lee, P. Westerhoff

HALF-LIFE ON RADIONUCLIDES

Accumulation of Radionuclides in Drinking Water Distribution Accumulation of Radionuclides in Drinking Water Distribution Systems ............................................................. 667

E. Morris, D. Lytle

Evaluation of Variability in Radionuclide Measurements for the Radionuclide Rule .............. 692A. Eaton, L. Geddes, Y. Cha, K. Morley

St. Charles, IL Radium Removal and Softening Using Split Stream Hydrous Manganese Oxides and Cation Exchange.................................................................................... 709

T. Dumbaugh, S. Trotter, D. Willers

MEMBRANE POSTERS

Determining Critical flux in Submerged Membrane Filtration of Han River Water .................. 734

Y. Choi, H. Oh, S. Lee, J. Choi, B. Choi, T. Hwang

Desalination of Estuarine River Water Source in New York....................................................... 744V. Veerapaneni, S. Master, J. Dyksen

Treatment of Phosphoric Acid CIP Waste .................................................................................... 774J. Edwards-Brandt, K. Abraham, C. Tona, C. Anderson

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The Development of a Monitoring Program to Assess Source Water Quality in Conjunction with the Siting and Construction of a Desalination Facility on the Hudson River ................................................................................................................................... 780

M. Principe, S. Master, J. Dyksen, S. Mallavaram

EFFLUENT REUSE: The Good, the Bad, and the Ugly The True Story ..................................... 781G. Witt, J. Derrevere, F. Bloetscher, J. Klontz, S. Ehrbar

MANGANESE MANAGEMENT

Black Brook Water Treatment Plant, Synthetic Alternative to Traditional Glauconite Removal Synthetic Alternative to Traditional Glauconite Green Sand for Manganese Removal................................................................................................................. 788

F. Marascia, J. Civardi

Effect of Chemical and Biological –oxidation and –reduction of Manganese in Drinking Water Quality and Supply............................................................................................... 832

J. Cerrato, J. Falkinham III, A. Dietrich

Control of Periodically Elevated Raw Water Manganese with Oxide Coated Media................ 838J. Tobiason, W. Knocke, A. Islam, J. Goodwill

ORGANICS POSTERS

Powdered Activated Carbon for Controlling Total Organic Carbon: Application and Model Development................................................................................................................. 849

H. Cho, R. Summers

Adsorption of Trimethoprim and Sulfamethoxazole on Alternative Adsorbents..................... 857A. Rossner, D. Knappe

Impact of MIEX Pretreatment on Downstream Conventionally Treated Water Quality Parameters ......................................................................................................................... 863

N. Charlton, P. Kohl

Removing Toc in Brute Cold River Water for Membrane Pre-treatment Evaluation of a 2-stage High-rate Clarification Process ................................................................................ 875

R. Wikramanayake, G. Baker, S. Scott, T. Muilenberg

Photodegradation of chlorpyrifos: the Roles of Carbonate Radicals and Hydroxyl Radicals ........................................................................................................................................... 886

C. Wu, K. Linden

Small Systems Remove TOC from Groundwater the Easy Way ................................................ 891J. Nattress, S. Shannon, J. Kalmbacher

Removal of an Antimicrobial Compound by Sequential Photochemical and Biological Oxidation Processes .................................................................................................... 900

C. Baeza, D. Knappe

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Developing a Strategy for Removing MTBE from a Groundwater Source in New York City .......................................................................................................................................... 905

M. Bell, M. Lenz

TOTAL COLIFORM RULE ISSUES

Development of a Revised Method for Increased Sensitivity for Recovery of Total Coliform and E coli in Drinking Water .......................................................................................... 928

R. McCuin, T. Hargy, J. Rosen, J. Clancy

Total Coliform Monitoring: Lessons from a Monitoring Program Using Large Sample Volumes and Large Number of Samples ........................................................................ 937

C. Owen, R. Powell, J. Rosen, J. Troutt, M. Pryor, J. Sobrinto, D. Mooren, J. Clancy, C. Fricker

Class Action Lawsuits: An Unintended Consequence of the Total Coliform Rule .................. 940J. Clancy

THM & HAA CONTROL

Use of SDS-THM to Evaluate Treatment Need for Unfiltered Supplies ..................................... 943

B. Barbeau, A. Carriere, F. Vaillancourt

Impact of Wastewater Effluent Organic Matter (EfOM) Properties on Drinking Water Disinfection By-Products (DBPs) in Indirect Potable Reuse........................................... 963

S. Nam, S. Krasner, G. Amy

Modeling Approach to Treatability Analyses: Impact of Source Water Degradation on an Existing Treatment Plant ..................................................................................................... 996

O. Lu, S. Krasner, R. Yates, S. Liang

Innovative Ways of Utilizing GAC for Stage 2 Compliance ...................................................... 1014K. Nowack, M. Pirnie

Occurrence and Control of Disinfection Byproducts in Consecutive Drinking Water Systems .............................................................................................................................. 1043

C. Hill, Z. Chowdhury, C. Valenti, M. Pirnie, M. Sclimenti, S. Krasner, R. Summers

A Simple Technology for THM Control in Consecutive Systems ............................................ 1057S. Sherant, H. Yeuell, Y. Xie

DISTRIBUTION SYSTEM MONITORING: WATER QUALITY/CONTAMINATION WARNING SYSTEMS

Evaluation of Tools to Detect Distribution System Water Quality Anomalies........................ 1063

K. Umberg, S. Allgeier

Development of a Contamination Warning System for the Pittsburgh Water and Sewer Authority............................................................................................................................. 1083

S. States, M. Stoner, C. Westbrook, D. Heza, L. Casson

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Development of a Contamination Warning System for Glendale, AZ ..................................... 1099K. Thompson, R. Scott

Online Toxicity Monitors (OTM) for Distribution System Water Quality Monitoring ............. 1110H. Allen, S. Panguluri, N. Muhammad, D. Macke, G. Meiners

Distribution System Water Quality Monitoring Stations - Challenges and Solutions ........................................................................................................................................ 1120

B. Jeppson, S. Ruppenthal

UV VALIDATION AND OPERATIONAL FLEXIBILITY

The Changes in the UV Disinfection O&M Guidelines: New Options Provide Operational Flexibility................................................................................................................... 1154

C. Cotton, J. Collins, L. Passantino

Estimating Dose Distributions from Biodosimetry Data........................................................... 1163H. Wright, K. Bircher

Who Needs Red? An Empirical Method for Validating the Log-inactivation of a Uv Reactor Thereby Eliminating the Need for Red and Red Bias ................................................. 1172

K. Bircher, H. Wright

Evaluation of Challenge Organisms for UV Inactivation of Pathogens .................................. 1180P. Rochelle, P. Huang, K. Hanley

Evaluation of UV Disinfection System Operations Leading to Proposed System Improvements at Poughkeepsies' Water Treatment Facility .................................................... 1194

M. Heath, H. Wright, P. Lill, M. Geho

Long Term Interior and Exterior Sleeve Fouling in a Medium-pressure Ultraviolet Drinking Water Disinfection Reactor .......................................................................................... 1211

I. Wait, A. Mofidi, E. Blatchley III

PROTECTING WATER SOURCES

Modifying Reservoir Operations to Reduce Turbidity .............................................................. 1223

G. Pyke, T. Pulokas, R. Gelda, T. Johnstone

Implementing an Agricultural Chemical Removal Project to Protect Water Quality ............. 1251N. Toth, K. Morgenstern

Minimizing Impacts from Animal Feeding Operations on Drinking Water Quality ................ 1263R. Gullick, R. Brown, D. Cornwell

VOLUME 3

Antibiotics in the Environment: A Watershed-Scale Fate and Transport Study .................... 1314

L. Richards, H. Weinberg

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A Toxic Spill and a Dying River. How Will Water Supplies Be Guaranteed? Problems and Solutions ............................................................................................................... 1318

M. Gomez, J. Martin, E. Fernandez

Source Water Protection Strategies for an Urban Groundwater Supply ................................ 1328M. Bell, D. Cohen

REVERSE OSMOSIS AND ION EXCHANGE RESIDUALS

Regulatory, Technical and Cost Impacts of Inland Membrane Concentrate Disposal; The Assessment of the Colorado Membrane Treatment Workgroup..................... 1354

P. Brandhuber

Inland RO Brine Management and Disposal .............................................................................. 1360P. Kwan, L. Christensen

Coagulation of Simulated High-Pressure Membrane Concentrates for Removal of Trace Pollutants ............................................................................................................................ 1374

K. Mercer, J. Tobiason

Reducing the Costs for Desalination with Zero Liquid Discharge .......................................... 1382R. Bond, V. Veerapaneni

Treatment of Ion Exchange Brine Waste for Barium Reduction by a High Rate Clarification Process .................................................................................................................... 1393

D. Willers, S. Scott, E. Lawrence

Use of Hydrogel Media to Remove Arsenic and Chromium from Water, IX Brine, and RO Concentrate ..................................................................................................................... 1414

J. Min, J. Zhang, C. Tasser, G. Crozes, J. Hering

LEAD AND COPPER

Impact of Sampling Flow Rate, Flushing, and Faucet Aerator on Dissolved and Particulate Lead Concentrations at Consumer Tap .................................................................. 1445

S. Nour, M. Prevost, C. Cartier, L. Laroche, M. Edwards

Switching to Chloramines in the New York City Water System: Impacts on Lead and Copper Leaching, Corrosion, and Regrowth ...................................................................... 1454

R. Sharp, B. Gaylord, E. Coleman, B. Rosenfeldt, W. Becker, C. Glaser

The Effect of Phosphate on the Morphological and The Effect of Phosphate on the Morphological and Spectroscopic Properties of Copper Drinking Water Spectroscopic Properties of Copper Drinking Water Pipes Experiencing Localized Corrosion...................................................................................................................... 1464

C. White, D. Lytle

Effect of Changing Disinfectants on Distribution System Lead and Copper Release........................................................................................................................................... 1471

G. Boyd, K. Dewis, A. Sandvig, S. Hendrickson, A. Vetrovs, G. Korshin, M. McFadden, S. Reiber, R. Giani, T. Otten

The Application of Electrochemical and Surface Analysis Approaches to Studying Copper Corrosion in Water: Fundamentals, Limitations and Examples ................ 1491

Y. Kang, W. Van Ooij, D. Lytle

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Comparison of Sampling Methods to Monitor Lead and Copper at Consumer's tap ............ 1519M. Prevost, S. Nour, L. Laroche, C. Cartier

DETECTION AND OCCURRENCE OF WATERBORNE PATHOGENS

Host Cell Capture Quantitative PCR Detection of Viruses ....................................................... 1549

G. Di Giovanni, L. Sifuentes, K. Mena

Naegleria fowleri Proposed Operational Practices .................................................................. 1553S. Bontrager, B. Robinson

Occurrence and Control of Naegleria fowleri in Well Water Chlorine Resistance ................. 1582C. Gerba, B. Blair, P. Sarkar, K. Bright

Hydrophobic Behavior of Mycobacterium Avium Ssp Avium in Pure Culture....................... 1597A. Jacque, G. Harrington, M. Collins

Legionella in Water Systems in Spain: Comparison of Detection Methods ........................... 1620G. Saucedo, A. Terradillos, B. Galofre, I. Salazar, F. Ribas

Yersinia as a Waterborne Pathogen: Implications of Method Selection on Detection ........................................................................................................................................ 1664

B. Cheyne, M. Van Dyke, W. Anderson, V. Morton, K. Pintar, F. Pollari, P. Huck

TASTE AND ODOR: METHODS, CONSUMERS AND CONTROL

T&O Removal Using Ozone and UV Oxidation Processes ....................................................... 1668

S. Kommineni, M. Pirnie

Novel Method for In-situ Capture of Taste and Odour (T&O) in Drinking Water : Implementation of an Enrichment Tool ...................................................................................... 1692

D. Benali, D. Benanou, J. Cigana

Factors Influencing Drinking Water Consumption in a Municipal Network............................ 1706F. Proulx, M. Rodriguez, J. Serodes, C. Bouchard, L. Miranda-Moreno

Using a Consumer Panel as a Tool for Making Water Resource Blending Decisions ....................................................................................................................................... 1713

M. McGuire, K. Arnold, J. Biggs, M. Pearthree

Finding an Odor Standard for Flavor Profile Analysis of Drinking Water............................... 1722P. Omur-Ozbek, A. Dietrich

DBP POSTERS

Advantages of Using a Consumer Panel to Examine Aesthetic Challenges in a Northern California Water System .............................................................................................. 1727

M. McGuire, J. Leserman, D. Requa, S. Stephenson, M. Lang, N. Blute

Photodegradation and Dehalogenation of Aqueous Flame Retardants and Plasticizers .................................................................................................................................... 1739

M. Watts, K. Linden

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Predicting Adsorbability of Organic Compounds on Activated Carbon................................. 1750I. Slavik, H. Bornick, E. Worch

Installation of a High Rate Magnetic Ion Exchange Process to Bring a Groundwater System into Compliance with the Stage 1 DBPR ............................................... 1765

N. Williams, M. Bourke, T. Shaw, M. Kelly, J. McCain

Electrolysis and Volatilization of Bromide from Drinking Water to Minimize Bromate Production by Ozonation.............................................................................................. 1772

D. Kimbrough, L. Boulos, P. Westerhoff, I. Suffet

Techniques for the Simultaneous Control of Manganese and Disinfection By-Products at Conventional Water Treatment Facilities .............................................................. 1815

S. Jeffcoat, S. Lavinder, D. Dye, R. Sosebee

Haloacetic Acid (HAA) Precursor Treatment: Identifying Characteristics for Removal ......................................................................................................................................... 1827

E. Goslan, P. Jarvis, T. Bond, C. Bougeard, B. Jefferson, S. Parsons

Development and Application of the Trihalomethanes Monitoring System in Drinking Water Process................................................................................................................ 1842

T. Hwang, S. Nam, Y. Choi, H. Oh

CORROSION AND CORROSION CONTROL

Modelling the Transport Behaviour of Particles and Corrosion Products in Drinking Water Distribution Systems ......................................................................................... 1851

K. Ripl, C. Wolf, W. Uhl

Three Years After Implementing Corrosion Control: Did We Get it Right? ............................ 1861Q. Muylwyk, I. Douglas

Planning for Ph Change: Maintaining Optimal Corrosion Control Treatment After Changes to Water Quality Treatment Processes....................................................................... 1889

D. Roth, D. Cornwell, N. Cole

Corrosion Control Evaluation for Tucson, Arizona ................................................................... 1898J. Collins, G. Hoeger, M. McGuire, J. Biggs, C. Cotton

Strategies to Control Red Water Occurrences in Distribution System ................................... 1937D. Mishra, S. Kommineni

Polyphosphates - The Solution To Distribution System Low Residuals, Biofilm and Pipe Corrosion-Part III........................................................................................................... 1943

S. Arweiler, D. Webb

VOLUME 4

OZONE AND ADVANCED OXIDATION

Ozone Contactor Flow Visualization and Characterization Using 3-Dimensional Laser Induced Fluorescence ....................................................................................................... 1967

D. Kim, P. Roberts, M. Elovitz, J. Kim

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Comparison of Disinfection Calculation Methods to Actual Inactivation Measured in a Continuous-flow Ozone Contactor ...................................................................................... 1974

I. Najm, N. Brown, T. Hargy, D. Rexing, P. Zhou, M. Hotaling, R. Navratil, S. Via

Using Chlorine-Ammonia Pretreatment for Bromate Control during Ozonation ................... 1990E. Wert, J. Neemann, D. Johnson, D. Rexing, R. Zegers

An Evaluation of the Effects of Coquitlam Source Water Turbidity on Ozone and UV Disinfection.............................................................................................................................. 1996

T. Hargy, L. Landry

Evaluation of the Dynamic Energy Consumption of Ozonation and UV Technologies for Water Treatment.............................................................................................. 2015

Y. Chang, P. Kwan, K. Rakness

Modeling UV/H2O2 Advanced Oxidation Processes in Water: The New ROH,UV Concept .......................................................................................................................................... 2045

E. Rosenfeldt, K. Linden

DISINFECTION POSTER

Evaluation of the Character of Mixed-Oxidant Species formed from Electrolysis of Brine ............................................................................................................................................... 2054

A. Sykes, H. Weinberg

Quality Control Strategies for Continuous Monitoring Ozone Sensors.................................. 2060S. Mahoney, A. Saskowitz

Evaluating Sequential Disinfection in Continuous Flow Water Treatment Systems ............. 2074B. Richards, J. Ducoste

Testing of Disinfection Alternatives for South Florida ASR Facility ....................................... 2082H. Landis, R. Verrastro, R. Frias

Electrolysis of Drinking Water and It’s Effect on Microbial Survival....................................... 2095D. Kimbrough, Y. Kouame, P. Moheban, S. Springthorpe, L. Boulos

Using an Internal Environmental Audit Program to Improve Compliance.............................. 2134M. Corson

Upgrade of the Ozone Facilities at the Sweeney Wtp in Wilmington, NC ............................... 2156R. Bouchard, J. Coggins, R. Hulsey, M. Richardson

IMPROVEMENTS IN MICROBE RECOVERY

Simultaneous Recovery of Diverse Microbes from Tap Water Using Hollow-Fiber Ultrafiltration.................................................................................................................................. 2161

A. Polaczyk, V. Hill, J. Amburgey

Statistical Analysis of Microbial Data Obtained by Serial Dilution-Agar Plate Methods ......................................................................................................................................... 2185

P. Schmidt, M. Emelko

Evaluation of the Methods for Enumerating Coliform Bacteria from Water Samples Using Precise Reference Standards ........................................................................... 2195

M. Gauci, T. Wohlsen, G. Vesey

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Reducing the Health Risk by Using Rapid Quantification Methods for E Coli Monitoring in Bathing Waters ...................................................................................................... 2221

P. Bergeron, S. Courtois, F. Chaubron, J. Laine

Performance Characteristics of Methods Approved for the Detection of Coliforms in Drinking Water .......................................................................................................................... 2229

C. Fricker, P. Warden, M. DeSarno, B. Eldred

Improved, Rapid Hollow-fiber Ultrafiltration (HFUF) for Recovery of Microbial Pathogens, Indicators, and Surrogate Bioterrorism Agents from San Francisco’s Source and Drinking Waters ........................................................................................................ 2232

O. Simmons III, M. Casteel, H. Lee, E. Andersen, M. Sobsey

MEMBRANE PROCESS EVALUATION: FEASIBILITY TO FULL-SCALE

A Feasibility Assessment of Membrane Process Retrofit in a 40 MGD Ozonation and Softening WTP ....................................................................................................................... 2250

K. Atasi, J. Reynhout, C. McCormack, T. Suszek

Membrane Filtration-Meet More Stringent LT2ESWTR Without Breaking Your Budget ............................................................................................................................................ 2268

Y. Sun, R. Gerlach, C. Canonico, N. Matthews, R. Istre

Membranes and UV-Understanding and Utilizing the Inherent Synergies for LT2ESWTR Compliance ............................................................................................................... 2284

J. Lozier, P. Swaim, J. Garcia-Aleman

Pre-ozonation Prior to Microfiltration Membranes, a Pilot Scale Evaluation ......................... 2318J. Chen, S. Dow, C. Cruz, W. Fryer

Water Quality Performance Comparison of Reverse Osmosis to Dual-Pass Nanofiltration for Seawater Desalination.................................................................................... 2334

T. Tseng, R. Cheng, K. Wattier

Designing Membrane Filtration for Concurrent Operation with Conventional Filtration-Yuba City WTP 30 MGD Expansion Experience........................................................ 2353

S. Pan, I. Pietz, R. Stratton, D. Murbach

INORGANICS TREATMENT USING INNOVATIVE PROCESSES

A Comparative Study of Nitrate Removal from Aqueous Solutions Using Zinc Chloride Treated Granular Activated Carbons .......................................................................... 2359

A. Bhatnagar, M. Ji, Y. Choi, W. Jung, B. Jeon, J. Kang

Electrochemical Removal of Total Dissolved Solids, Nitrate, Ammonia from Drinking Water using Charge Barrier Capacitive Deionisation................................................ 2369

R. Broseus, J. Cigana, B. Barbeau, L. Seed, G. Shelp, C. Daines, H. Suty

Regeneration of Perchlorate and Nitrate Loaded Ion-Exchange Resins Using Biological Reduction .................................................................................................................... 2377

J. Batista, M. Sharbatmaleki, P. Jensen

Optimizing Processes Downstream of Biological Perchlorate Treatment.............................. 2387J. Brown, C. Lauderdale, G. Estevao

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Perchlorate, Arsenic, & TDS Removal From Groundwater Using EDR & Biofiltration: Pilot Testing Through Full-Scale Design & Construction .................................. 2391

M. Barry, J. Brown, E. Hansen, R. Wheadon, C. Christiansen

Nitrification, Iron and Arsenic Removal in Biologically Active Filters: A Case Study .............................................................................................................................................. 2404

D. Lytle, T. Sorg, A. Chen, L. Wang, K. French

INORGANIC POSTERS

Managing Manganese: Understanding Sources to Develop Solutions................................... 2427

S. Clark, P. Brandhuber, G. Fuller, B. Spillman

Tough Water Qualities: How to Treat Hard Sulfur-Laden Groundwaters................................ 2446M. Graves, P. Kwan, R. Noack, T. St. Tours, N. Graff

Removal of Silica Coating from Porous Media to Improve Adsorption Capacity .................. 2458R. Dennis, D. Bitter, N. Abboud

Predicting Contaminant Removal by Adsorptive Media Using the Triple Layer Model .............................................................................................................................................. 2472

A. Vieira, L. Katz, C. Chen

Modeling Multi-Contaminant Removal by Ion Exchange.......................................................... 2482G. Ghurye, D. Clifford

METHOD DEVELOPMENT FOR ORGANISMS IN WATER

Decay Rate Index for E Coli and Enterococci in Fresh and Salt Bathing Waters .................. 2502

W. Hijnen, A. Lugtenberg, H. Ruiter, R. Vink, G. Medema

Improvements in Cryptosporidium Recovery and Variability Through Modifications to USEPA Method 1623 ........................................................................................ 2510

G. Kimble, J. Amburgey, H. Hilger

Detection of Infectious Cryptosporidium in Treated Drinking Water Using Multiple Cell Culture Assays and Genotyping.......................................................................................... 2525

A. Johnson, G. Di Giovanni, P. Rochelle

Molecular Forensic Profiling of Cryptosporidium Spp to Determine the Diversity of Fecal Contamination in Four Canadian Watersheds ............................................................ 2536

N. Ruecker, E. Topp, T. Edge, D. Lapen, E. Van Bochove, H. Schreier, W. Koning, J. Miller, I. Khan, V. Gannon, C. Sensen, N. Neumann

Isolation of Lactose-negative Coliform Bacteria from a Water Treatment Plant.................... 2548J. Huguet, B. Galofre, A. Terradillos, G. Saucedo, F. Ribas, A. De Barcelona

Quantitative Microbiological Risk Assessment; New Tools to Assess and Manage Risks from Pathogens in Drinking Water ................................................................................... 2565

E. Hartnett, S. McFadyen, I. Douglas, W. Robertson, G. Paoli

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MICROBE POSTERS

LIMS Implementation Improves Efficiency, Reduces Costs and Enhances Data Quality ............................................................................................................................................ 2580

J. Keith, A. Trentman

Identification of Mycobacterium avium subsp hominissuis Isolated from Drinking Water and Food ............................................................................................................................. 2588

D. King, A. Beumer, S. Pfaller

GEOSMIN AND MIB: PERCEPTION TO TREATMENT

European Reassessment of MIB and Geosmin Perception in Drinking Waters..................... 2595

P. Piriou, R. Devesa, M. De Lalande, K. Glucina

Method Development for Analysis of Trace Taste and Odor Compounds in Drinking Water............................................................................................................................... 2602

W. Davis II, Y. Li

Effect of TOC, TDS, Temperature, and Concentration on Henry's Law Constants of Geosmin and Trichloromethane ............................................................................................. 2603

C. Jo, H. Johnson, A. Dietrich

Removal of 2-methylisoborneol and Geosmin with High-silica Zeolites ................................ 2610B. Yuncu, D. Knappe

VOLUME 5

Modeling Biodegradation and Adsorption of Geosmin and MIB at Low Concentrations in Biofilters ......................................................................................................... 2621

W. Uhl, F. Persson, G. Heinicke

Evaluating UV/H2O2 Performance for Taste and Odor Control David Dani1, Karl Linden2, R. Scott Summers3 ....................................................................................................... 2636

D. Dani, K. Linden, R. Summers

THE MANY USES OF DISTRIBUTION SYSTEM MODELS

Nitrification Inhibition Kinetics by Low Levels of Chlorite ....................................................... 2646

M. Rungvetvuthivitaya, R. Song, M. Campbell, J. Wang, C. Ray

Identifying Backflow Hotspots Using Meters and Models........................................................ 2658K. Fleming, D. Hughes

A Water Quality Improvement Plan Using Combined Distributed Treatment and Distribution System Modeling Technology ................................................................................ 2673

L. Jacobsen, M. Fang, J. Chan

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Halftime Report: IDSE Models vs. DBP Measurements ............................................................ 2705J. Cruickshank

Calibration and Application of Water Quality Modeling in Distribution Systems .................. 2735J. Yang, D. Swailes

Using GIS and Water Quality Model to Analyze Potential Risk Areas of Lead leaching in Water Distribution Systems ..................................................................................... 2755

M. Wang, W. Zhang, H. Devine

HIGH-EFFICIENCY/ENHANCED PROCESS TECHNOLOGIES

Study of Conventional and Engineered Granular Media Filtration Performance................... 2775

D. Scott, M. Emelko, J. Bolton

Evaluating Pre-oxidation Alternatives for Upgrade of Surface Water Treatment with Dissolved Air Flotation......................................................................................................... 2806

F. Zraick, K. Cartnick, X. Wang

DAF: Water Quality Considerations and the World’s Largest DAF Plant ............................... 2829W. Becker, M. Valade, S. Freud, S. Bishop

Long-term Comparison Testing with Sand Ballasted Flocculation (SBF) and High-rate Dissolved Air Flotation (DAF) .............................................................................................. 2877

S. Kempeneers, J. Clement, J. Van Cappellen, G. Budd, W. Bossaerts, G. Milton

Evaluation of High-rate Clarification Processes As a Pretreatment to Microfiltration of a Surface Water ............................................................................................... 2881

D. Wilson, S. Dow, J. Chen, W. Fryer

Numerical and Experimental Study of a Low Load High Rate Sand Ballasted Technology .................................................................................................................................... 2891

K. Essemiani, A. Gadbois, J. Cigana, E. Laflamme, J. Berard

USEPA’S WATER SECURITY INITIATIVE: CONTAMINATION WARNING SYSTEM DESIGN & IMPLEMENTATION AT THE GREATER CINCINNATI WATER WORKS INITIAL PILOT UTILITY

Implementation of the Contamination Warning System at GCWW ......................................... 2903

D. Hartman, J. Swertfeger

Developing a Concept of Operations for an Integrated, Multi-Component Contamination Warning System.................................................................................................. 2911

S. Allgeier, J. Pulz

Developing a Consequence Management Plan for a Contamination Warning System ........................................................................................................................................... 2921

B. Pickard, J. Fencil

Water Quality Monitoring for the Contaminant Warning System at the Greater Cincinnati Water Works................................................................................................................ 2932

J. Swertfeger, D. Hartman, Y. Lee

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Contamination Warning System Evaluation .............................................................................. 2937J. Pulz, S. Allgeier

MEMBRANE INTEGRITY AND NOVEL APPLICATIONS

Considerations on the Extension of the LT2ESWTR Membrane Regulatory Framework to Other Pathogens .................................................................................................. 2943

B. Alspach

Validation of the Pressure Decay Test for UF membrane integrity monitoring using MS2-phages ........................................................................................................................ 2960

A. Brehant, K. Glucina, J. Laine, P. Sauvade

Mechanical and Chemical Stabilities of Polymeric Membranes .............................................. 2989C. Liu

Innovative Membrane Treatment of Waste Filter Backwash .................................................... 3007J. Tobiason, K. Mercer, A. Nguyen

A Polishing Hybrid AER/UF Membrane Process for the Treatment of a High DOC Content Surface Water ................................................................................................................. 3017

H. Humbert, J. Croue, J. Schrotter

Low-cost Ceramic Membrane Filtration for Application in Developing Countries: the Ceramic Silver-impregnated Pot Filter ................................................................................. 3033

D. Van Halem, B. Heijman, H. Van Dijk, G. Amy

ORGANIC CONTAMINANT OXIDATION: CHEMICAL AND BIOLOGICAL

The Impact of Co-contaminants in Septic Effluents on the Transport of Steroid Estrogens through Soil-Water Treatment................................................................................... 3040

B. Stanford, H. Weinberg

Chlorination of Pharmaceuticals................................................................................................. 3048I. Xagoraraki, R. Hullman, W. Song, H. Li

UV Oxidation for Groundwater Recharge Reuse at West Basin .............................................. 3067G. Bradshaw

Modeling Organics Degradation with the UV/H2O2 Advanced Oxidation Process Using Computational Fluid Dynamics ........................................................................................ 3077

S. Alpert, J. Ducoste

Screening Study and Byproduct Determination for Pesticide Degradation during Disinfection in Water Treatment .................................................................................................. 3094

E. Chamberlain, T. Wang, C. Adams, Y. Ma, H. Shi, M. Meyer, A. Fulmer

Elimination of Microcystins and Associated Toxicity Through Biofiltration Processes ...................................................................................................................................... 3102

L. Ho, D. Hoefel, A. Gaudieux, A. Humpage, C. Saint, G. Newcombe

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INACTIVATION OF ORGANISMS AND LABORATORY PREPAREDNESS

Removal of Cyanobacteria and Their Metabolites Through Water Treatment Processes-south Australian Case Studies................................................................................. 3114

L. Ho, G. Newcombe

Microbial Efficacy of Innovative Water Reuse Technologies ................................................... 3123J. Bandy, P. Ruiz-Haas, K. Cho, A. Salveson, K. Linden

Effect of Pathogen Concentration on Pathogen Removal in Conventional Surface Water Treatment............................................................................................................................ 3132

G. Harrington, P. Assavasilavasukul, B. Lau, R. Hoffman, M. Borchardt

Assessment of UV-Induced Damage to the Adenoviral Genome Using Quantitative PCR........................................................................................................................... 3147

A. Eischeid, K. Linden

The Drinking Water Laboratory Response Preparedness Project: Milestones and Lessons Learned........................................................................................................................... 3150

A. Mudambi

Enrichment, Isolation, and Characterization of Dominant Bacteria That Degrade Haloacetic Acids in Drinking Water ............................................................................................ 3178

P. Zhang, R. Hozalski, T. LaPara, Y. Xie, A. Camper, L. Leach

CHLORAMINES: BY-PRODUCTS AND WATER QUALITY EFFECTS

Using Formation Potential Tests to Elucidate the Reactivity of DBP Precursors with Chlorine versus with Chloramines...................................................................................... 3184

S. Krasner, M. Sclimenti, W. Mitch, P. Westerhoff, A. Dotson

Method Development for Analysis of Carcinogenic Hydrazines in Water .............................. 3195W. Davis II, Y. Li

Measuring the Life Cycle Cost of Chloramines ......................................................................... 3197W. Lovins, R. Powell, S. Duranceau

Chlorite Decay Kinetics in Chloraminated Waters .................................................................... 3227M. Rungvetvuthivitaya, R. Song, M. Campbell, J. Wang, C. Ray

Elevated Natural Source Water Ammonia and Nitrification in the Distribution System ........................................................................................................................................... 3242

D. Lytle, C. Muhlen, B. Almassalkhi

Nitrosamine, Nitrile And Nitramine Formation Relevant To Nitrification Control .................. 3263W. Mitch

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VOLUME 6

MAINTAINING WATER QUALITY IN THE DISTRIBUTION SYSTEM

Assessment of Transient Negative Pressures at the Site of the Payment's Drinking Water Epidemiological Studies.................................................................................... 3270

M. Besner, J. Lavoie, P. Payment, M. Prevost

Particulate Finger Printing of Water Quality in the Distribution System ................................ 3281J. Verberk, J. Vreeburg, J. Van Dijk

Maintaining Distribution Water Quality during a Major Reservoir Repair Effort .................... 3295A. Harvey, R. Kopansky

Applications of Computational Fluid Dynamics Modeling for Water Quality Management .................................................................................................................................. 3308

F. Mahmood, J. Pimblett

Determining the Source of Low Disinfectant Residuals Using Fluoride Tracer Protocols........................................................................................................................................ 3322

N. Pizzi, M. Rodgers, D. Ramsey

CURRENT CONTEMPLATIONS IN COAGULATION

A Simple Method for Water Plant Optimization and Operation of Coagulation ..................... 3344

J. Edzwald, G. Kaminski

Microbial Elimination Capacity of conventional water treatment for viruses, bacteria and protozoan (oo)cysts ............................................................................................... 3350

W. Hijnen, G. Medema

Removal of Multiple Microorganisms Under Varying Coagulation Conditions in a Pilot-Plant ...................................................................................................................................... 3361

J. Amburgey, V. Hill, A. Polaczyk, M. Arrowood

Impact of Magnetic Ion Exchange (MIEX) Resin on Floc Properties: a Pilot Plant Evaluation ...................................................................................................................................... 3398

P. Jarvis, M. Mergen, S. Parsons, B. Jefferson

Alternative TOC Removal Requirements for Cost-Savings while not Compromising Your Water Quality Treatment Goals................................................................ 3412

Y. Wang, Y. Forrest, M. Littleton, D. Belhateche

Coyote Springs WTP Optimizes Arsenic and Fluoride Removal with Pilot Testing .............. 3423S. Pan, E. Wert, J. Chapman, R. Stratton, P. Kwan, E. Mortensen, Y. Chang

INORGANICS ANALYSIS

State-of-the-Art Geochemical Techniques in Evaluating Drinking Water Treatment Contaminant Removal Processes ............................................................................................... 3431

N. Blute, M. McGuire, G. Qin, D. Brabander, M. Newville, P. Kavounas

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New Developments in Chlorite Residual Analysis .................................................................... 3441X. Wu, G. Qin, M. McGuire, N. Blute, D. Askenaizer

Fluoride Testing Method: Improving Ion Chromatography Accuracy..................................... 3453C. Cruse, P. Walton

Analysis of Bromate: How Do You Know You Are Really in Compliance? ............................ 3472A. Eaton, A. Haghani, L. Ramirez

Methods for the Analysis of Iodoacids in Drinking Water ........................................................ 3485K. Weissbach, H. Weinberg

MEMBRANE FOULING

Comparing NOM Related Fouling of Low Pressure Membranes and Development of a Unified Membrane Fouling Index ......................................................................................... 3489

C. Mysore, J. Lozier, G. Amy, J. Jacangelo

Impact of Chemical Cleaning on Properties and Functioning of UF Membranes .................. 3511E. Arkhangelsky, A. Brenner, V. Gitis

Optimization of Aeration and Backwash for Submerged Microfiltration of Surface Water .............................................................................................................................................. 3522

B. Choi, H. Oh, T. Hwang, S. Iee, J. Choi

Aggravated Fouling of NF and RO Membranes in the Presence of Dissolved Organic Matter and Inorganic Colloids....................................................................................... 3530

A. Harris, C. Marbury, Q. Li

Impact of Feed Water Quality on Biofouling of Nanofiltration Membranes Used for Drinking Water Production .......................................................................................................... 3540

K. Kecili, A. Houari, C. Marconnet, H. Habarou, P. Di Martino, V. Heim

Towards a Mechanistic Understanding of the Impact of Fouling on the removal of EDCs/PPCPs by Nanofiltration Membranes ............................................................................... 3552

G. Makdissy, S. Peldszus, R. McPhail, P. Huck

RISK, OCCURRENCE AND TREATMENT OF MICROPOLLUTANTS

Environmental Risk Associated with Antibiotics and Pharmaceuticals in Surface Waters ............................................................................................................................................ 3557

K. Bronstein, H. Weinberg

Screening Analysis of Pharmaceutically Active Compounds in Water .................................. 3563Y. Li, J. Whitaker, C. McCarty

Developing Sampling Designs for Atrazine and TCT based on Historical Data..................... 3566J. Rosen, A. Roberson, J. Sobrinho

Advanced Water Treatment Technologies for Endocrine Disrupting Compounds Removal in Reuse Water .............................................................................................................. 3581

K. Cho, P. Ruiz-Haas, J. Bandy, K. Linden

EDC and PPCP Compound Occurrence and Reduction Through Treatment Processes ...................................................................................................................................... 3588

J. Oppenheimer, S. Adham, J. DeCarolis

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Assessment of Advanced Treatment Technologies and Processes for Removal of Chemical Pollutants for Water Reuse ......................................................................................... 3603

P. Ruiz-Haas, J. Bandy, K. Cho, A. Salveson, K. Linden

BIOLOGICAL STABILITY OF WATER IN DISTRIBUTION SYSTEMS

Development of a Rapid Bioluminescent AOC Test.................................................................. 3612

L. Weinrich, E. Giraldo, M. LeChevallier

Application Of A Flow Cytometry Method To Quantify Bacterial Regrowth And Assimilable Organic Carbon In Distribution Systems .............................................................. 3634

E. Rosenfeldt, C. Baeza, D. Knappe

Effect of Stannous Chloride on Bacterial Growth in Distribution Systems ............................ 3641X. Dai

Factors Affecting Biofilm Density in Drinking Water Distribution Systems ........................... 3649S. Srinivasan, G. Harrington, I. Xagoraraki, R. Goel

Microbial Source Tracking in Distribution Systems: a Retrospective Analysis .................... 3662C. Krentz, S. Payne, G. Gagnon, M. Mosher, L. Truelstrup-Hansen, M. Friedman, M. LeChevallier

Modeling of Heterotrophic Bacteria in a Water Distribution System ...................................... 3667A. Francisque, M. Rodriguez, L. Miranda, R. Sadiq

WHAT’S NEW AND EXCITING IN FILTRATION

North America or Europe: Who is the True World Leader in Drinking Water Practice? (What Can Each Learn from the Other?) ................................................................... 3678

G. Amy

Management of Micro and Macro-organisms Contamination of Filter Beds .......................... 3704K. Glucina, J. Loret, M. Jousset, S. Robert, C. Marchand, I. Baudin

Optimierung Der Trinkwasseraufbereitung Bei Schwankender Rohwasserquali-tät Mehrfach Genutzter Talsperren ................................................................................................... 3714

I. Slavik, W. Uhl

Modelling of Clogging of Biological Activated Carbon Filters................................................. 3723P. Ross, L. Rietveld, L. Van Der Aa, J. Van Dijk

Increasing Plant Capacity By Optimizing Filter Media Design: The Atlantic City MUA Experience............................................................................................................................ 3734

M. Lewandowski, M. Bottin, W. Becker, J. Herzner

Polymer Dosing for Filtration: Engineering Flocs..................................................................... 3751L. Fabrizi, P. Jarvis, S. Parsons, B. Jefferson

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ORGANIC BY-PRODUCT ANALYSIS

Online SPE-LC-MSMS for the quantification of pharmaceuticals, personal care products and endocrine disruptors in drinking water sources of Montreal region (Quebec, Canada).......................................................................................................................... 3761

L. Viglino, K. Aboulfadl, A. Mahvelat, M. Prevost, S. Sauve

Methods for the Analysis of Priority DBPs in RO-Concentrated Drinking Water................... 3775N. Bodin, H. Weinberg, S. Krasner, S. Richardson, J. Pressman, T. Speth, R. Miltner, J. Simmons

Simultaneous Analytical Method for 1,4-dioxane and N-nitrosoamines Using Solid Phase Extraction and GC/MS/MS/CI from Aqueous Samples .................................................. 3781

L. Yoo, S. Fitzsimmons, M. Wehner

Real-Time Oxidation and Byproduct Formation by Liquid Chromatography-Mass Spectrometry ................................................................................................................................. 3793

B. Vanderford, F. Rosario-Ortiz, S. Snyder

Solid-Phase Extraction of 35 DBPs with Analysis by GC/ECD and GC/MS ............................ 3798R. Chinn, T. Lee, S. Krasner, M. Dale, S. Richardson, J. Pressman, T. Speth, R. Miltner, J. Simmons

PFOS / PFOA and Beyond by On-line SPE coupled with HPLC – MS/MS ............................... 3818A. Haghani

USING SOFTWARE TOOLS TO MANAGE WATER QUALITY

Practical Applications of an Integrated LIMS / OPS System for Water Quality ...................... 3834

E. Turner

ADSORPTION, ION EXCHANGE AND CHARACTERIZATION OF ORGANIC COMPOUNDS

Stoichiometric Removal of Disinfection Byproduct Precursors by Ion Exchange ................ 3856

T. Boyer, P. Singer, G. Aiken

Combined Adsorption and Ion Exchange Removal of Trace Anionic Organic Compounds by Ion Exchange Resins......................................................................................... 3865

S. Kang, R. Summers, G. Amy

Removal of NOM Fractions by Different Ion Exchange (IEX) and Adsorbent Resins and Effect on the Performance of Activated Carbon.................................................... 3872

A. Grefte, M. Dignum, L. Rietveld, E. Cornelissen, G. Amy

Integrated Analysis of NOM Removal by Magnetic Ion Exchange........................................... 3884P. Singer, T. Boyer, A. Holmquist, J. Morran, M. Bourke

MIEX® Treatment of Polarity Based Fractions of Natural Organic Matter From a Western Australian Groundwater................................................................................................ 3897

S. Hamilton, C. Joll, R. Kagi, P. Greenwood

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Characterization of Amino Acid Fraction of Organic Matter During Drinking Water Treatment ....................................................................................................................................... 3907

P. Westerhoff, A. Dotson

FREE-LIVING AMOEBAE: WHAT ARE THEY AND WHY SHOULD WE CARE? SPECIAL TOPIC SESSION

Free-Living Amebae: Biology, Epidemiology and Public Health Significance....................... 3911

G. Visvesvara

Methods for Detecting, Identifying and Quantitating Free-Living Amebae in Water ............. 3920F. Marciano-Cabral, M. Jamerson, G. Cabral

Author Index