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IMPORTANT!
Currently, the constituents of greatest concern for the campus are
salts (measured as total dissolved solids or electrical conductivity),
copper, aluminum, and cyanide. The wastewater treatment plant has
historically experienced permit violations for these three pollutants.
Accordingly, the campus community is urged to be especially vigilant
in following sewer disposal policies for these constituents. The
following sewer discharge limits are in place:
- Electrical Conductivity: Wastewater shall not cause
or contribute to permit violations at the wastewater treatment
plant. Any sewer discharges that exceed 900 umhos/cm and any
new proposed water softeners (or other water treatment devices
that discharge waste brine) must be approved by
at (530) 754-8214.
- Aluminum: Watewater shall not contain greater than 87
parts per billion.
- Copper: No added copper allowed.
- Cyanide: Wastewater shall not contain greater than 20
parts per billion.
If your waste exceeds any of these limits, please contact
Environmental Health and Safety (EH&S),
for proper disposal at (530) 752-1493.
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