The term Significant Industrial User (SIU) means:
-
All industrial users subject to categorical pretreatment
standards, known as categorical
industrial user
(CIU).
-
Any other industrial user that:
-
discharges 25,000 gallons per day or more of process wastewater
to the POTW (excluding sanitary, noncontact cooling and boiler
blowdown wastewater)
-
contributes process wastewater to the POTW which makes up 5 % or
more of the average dry weather hydraulic capacity of the
wastewater treatment plant
-
contributes process wastewater to the POTW which makes up 5 % or
more of the organic capacity of the wastewater treatment plant
-
or is designated as such by the POTW on the basis that the
industrial user has a reasonable potential for adversely affecting
the wastewater treatment plant's operations and sewer system or for
violating any pretreatment requirement.
Contact us for
assistance.
