Pollutants and Sources

What Does the CMP Monitor?

Pollutants:

• Pesticides and herbicides such as diazinon, chlorpyrifos and Roundup®
• Bacteria (E.coli, fecal and total coliform)
• Mercury
• Metals such as copper, arsenic, lead and aluminum
• pH, temperature, turbidity, dissolved oxygen

Numerous natural and artificial sources influence water quality. The major factors that affect the water quality in the Sacramento and American rivers include:

• Natural erosion of land and stream banks
• Discharges from municipal wastewater treatment facilities, stormwater runoff, along with agriculture, industry, residents and recreational activities
• Historic mining and timber harvesting
• River flows that move sediments and associated pollutants down the rivers
• Wildlife

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