Friends of Five Creeks also does periodic sampling, especially for sewage or chloramine pollution, with the assistance of the U.S. Environmental Protection Agency Region 9 lab. If you would like to help with monitoring, contact us.
With the U.S. Environmental Protection Agency Region 9 Laboratory doing the lab tests, we also periodically sample our creeks for sewage pollution. We also have used techniques like counting numbers and types of insect larvae, a useful quick gauge to health of a creek.
Monitoring has many uses. Knowledge of flow, for example, helps in designing restored creek channels. Our temperature records show that Codornices Creek is cool enough for fish like trout and salmon year round, while Cerrito Creek is not. We can set our goals accordingly. And of course, monitoring detects and documents pollution, enabling us to seek corrective action. Our monitoring has led to repair of broken sewer lines and action to require East Bay MUD to lessen discharges of muddy water like the one pictured at the bottom of this page.
Keith Alcock assembled the following information regarding monitoring the physical and chemical characteristics of our creeks as part of founding our water quality monitoring program in 1995:
- Dissolved Oxygen
- pH
- Turbidity
- Biochemical Oxygen Demand
- Temperature Change
- Nitrates
- Total Phosphates
- Conductivity
- Ammonia
- Algae
- Cleanup Guidelines
- Conductivity-to-Salinity Conversion
Gustavo Porras installing
automated monitoring equipment in Codornices Creek.
Ed Ballman downloads readings of flow,
temperature, and conductivity from automated equipment.
Friends of Five Creek monitoring has led to
action to lessen discharges of muddy water, like this one in Codornices
Creek.