Advanced Technologies in Real-Time Monitoring and Modeling for Drinking Water

Safety and Security

June 27-28, 2002

Ron Hunsinger

Manager of Water Quality

Oakland, California

www.ebmud.com

East Bay Municipal Utility District

EBMUD supplies water to 1.3 million people in the East Bay area (San Francisco Bay) in California

90% of water supply is from Sierra Nevada Mountains

10% is from local watersheds

EBMUD owns and manages: 55,000 acres of watershed, 7 reservoirs, 6 treatment plants, 122 pressure zones (sea level – 1,450 ft), and 3,900 miles of distribution pipe

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C a ma ncheRe ser voi r Pa rdee

Re ser voi r

E B MU DSer vice

A rea

M o k elu m neA qu e d uct s

M ok elu m neR iv er

S a cr am en toR i ver

Sa n Jo aq ui nR iv er

M okel um neW ate rshed

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Utility Safety Concerns

Physical

Contamination

Cyber

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Current MonitoringDesigned to meet regulatory and operational needs• Source, Treatment & Distribution

• On-line and Grab Samples

Current ModelHydraulic

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“One of the most challenging feats for those responsible for the public health is the interpretation of information in real time with inadequate or incomplete data.”

Dr. Marcelle Layton, Head of Communicable Diseases from the New York City Bureau of Communicable Diseases (NYCDOH)

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Model Needs

Water Quality Model including properties of probable agentsFast

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Sensor Needs

Address contaminants of concern

Reliable!

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AWWRF Book “On-Line

Monitoring for Drinking Water

Utilities”

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ISO Performance Characteristics

Response time

Day-to-day repeatability

Linearity

Coefficient of variation

Limit of detection

Limit of quantitation

Memory effects

Repeatability

Lowest detectable change

Trueness

Short & long-term drift

Interference

Ruggedness

Availability

Up-time

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Implementation Issues

Sampling System

Data Collection and Use

Training

Integration

Location

Maintenance

Quality Assurance

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Cost/Benefit

Cost• Capital/Operating Costs

Benefits• Ability to produce consistent high quality

water• Better use of personnel• Early warning of problems• Automatic report generation• Chemical savings

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AWWARF Resources

Design of Early Warning and Predictive Source-Water Monitoring Systems [#2527] Contractor: Walter Grayman Consulting Engineer and University of Michigan

On-line Monitoring for Drinking Water Utilities [#2545]Contractor: AWWA Research Foundation and CRS PROAQUA Practical Application of On-Line Monitoring [#2516]Contractor: McGuire Environmental Consultants, Inc. Innovative Systems for Early Warning Water Monitoring [#2779] Contractor: Kiwa N.V. 

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AWWARF Resources (Cont’d)

Advancement Of Early Warning System Technologies – Phase 1 (RFP 2852) Contractor: To be selected (Proposals due July 15, 2002, RFP available at www.awwarf.com) Inventory and Assess Analytic Capabilities of Existing Monitoring Technologies for Use as Early Warning/Real-Time Systems Technologies Contractor: To be determined Extraction Methods for Early/Real-time Warning Systems for Biological Agents Contractor: To be determined