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Two types of permits under NPDES: -general (CGP, IGP, multi-sector general permit for
industrial activities)
-individual
What is a point source? Conveyance such as a pipe, ditch, channel, tunnel, conduit,
discrete fissure or container, floating vessels, concentrated animal feeding operations
Conditions all general permits share: -only stormwater may be discharged
-discharge of stormwater containing hazardous materials must be minimized
-each facility must develop SWPPP
Who must apply for an individual permit for their stormwater discharges? -discharges
where NPDES permit already issued and discharges of stormwater that EPA has determined is
contributing to the violation of a water quality standard or is a significant contributor of
pollutants
, States without authority to issue general permits... may only issue individual permits.
Information needed to apply for NOI: -a brief description of the project
-estimated timetable
-estimated number of acres that will be disturbed
-certification that the SWPPP for the facility provides compliance
When must construction stormwater permits be filed? At least 7 days before the beginning
of construction
SWPPP must be prepared before... NOI filed.
SWPPPS are for... construction sites that are greater than one acre.
SWPPP must include this information regarding existing conditions of the site: -existing
soil information
-existing data concering the runoff quality at the site
-location and extent of surface waters adjacent to/included within site