Zone 4 Line A

Rand EadsRiverMetrics LLC

www.rivermetrics.comrivermetrics@gmail.com

503-435-7516

Sources Pathways and Sources Pathways and Loadings WorkgroupLoadings WorkgroupDecember 12, 2007December 12, 2007

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Location – Cabot Blvd, HaywardItem #3a

Zone 4 Line AInstrumentation

CampbellData loggerTTS Software

ISCO PumpingSampler

Boom

Housing

Turbidity Sensor

StageSensor

Rain GageSolar Panel

Sampling Summary HY07

• 11/10/06 – 02/06/07 10-min. records• 02/06/07 – 04/30/07 5-min. records• Season rainfall 10.38 inches• Max stage 3.02 ft., Max Q 308 cfs• 21 storms identified • 120 SSC samples collected, 84 analyzed • Highest est. SSC = 3,463 mg/L, highest

measured SSC = 2,744 mg/L

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Storm 4Item #3a

Storm 4Item #3a

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Storm 20

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Storm 20Item #3a

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