WASTEWATER
Industrial Pretreatment Program
The Industrial
Pretreatment Program was established to monitor
and control pollutants in industrial and/or
commercial wastewater discharges into the
sanitary sewer system, which might interfere
with the operation of the wastewater treatment
plant or pass through the plant. Selected
industries self-monitor pollutants in their
wastewater to assure they are within the
limits established by the Federal, State
and County regulations. At the present time
there are six (6) permitted industrial users
(IUs) in the program. The County also samples
and monitors these industrial discharges
to ensure compliance.
In addition to
sampling and monitoring industrial wastewater,
commercial areas may also be monitored for
high-strength or toxic wastewater discharges.
Some examples include restaurants for excessive
grease discharges or printing/silk screen
establishments for ink discharges. Excessive
grease discharges may lead to sanitary sewer
line blockages and cause sanitary sewer overflows
(SSOs). SSOs will release raw wastewater
to the surrounding environment, possibly
into lakes or streams. Another example of
a commercial wastewater discharge could be
ink discharges from a printing or silk screen
establishment. It is important to protect
the bacteria and protozoa in the wastewater
plant from harmful wastes so they can do
their job of breaking down wastewater.
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