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Ebmud Water Treatment Project, San Franciso

Plant Types

3 x conventional filtration plants; 3 x in-line plants

Total Capacity

1.4 million cubic meters per day

Filter Media

Sand & anthracite/carbon

Disinfection

Chlorine/chloramines; ozone at Sobrante & Upper San Leandro WTPs

Water Quality (2006 average)

Total Coliforms

<0.1&#37;

Turbidity (NTU)

0.04

Colour (in colour units)

1

Odour (TON)

1.9

TDS (in mg/l)

108

pH (in pH units)

8.5 - 9.1

EBMUD Service area

Water Supply Management Program adopted

1993

Seismic Improvement Program adopted

1994

East Bay Watershed Master Plan Adopted

1996

Water System Revenue Bonds Authorised

2001

EIR Certified

December 2006

Main Project Anticipated Duration

2011-2014

Plant Improvements

&#36;225m

Distribution System Improvements

&#36;145m

Client

EBMUD

Design Services

Carollo Engineers

Pipework

Northwest Pipes

Microtunnelling

Modern Continental

Population Served

1.3 million

Length of Pipelines

3,944 miles

Pumping Plants

126

Reservoirs/Tanks

165

Pressure Zones

122
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