26 FLEXOGRAPHY: PRINCIPLES & PRACTICES
• any trucked or hauled pollutants,
except at discharge points designated
by the POTW.
There are numerous requirements for dis-
chargers into POTWs. A business must keep
records, monitor discharges and prepare
and submit periodic monitoring reports, as
determined by the POTW. When there is a
discharge that could “cause problems,” the
POTW must be notified immediately. A busi-
ness must give prompt notice to the POTW if
there is a significant change in the discharge.
If a POTW is to be bypassed, it must be noti-
fied 10 days in advance of the known need
for an intentional diversion of wastewater
stream; or orally within 24 hours and in writ-
ing within five days of becoming aware of a
bypass. A business that discharges to a
POTW a substance which, if otherwise dis-
posed of, would be a hazardous waste must
give a one-time notice to the local sanitary
district, USEPA and the appropriate state
agency unless exempted. Discharges of
more than 33 pounds per month of haz-
ardous waste or any acute wastes mixed
with domestic sewage require written notifi-
cation to the local USEPA office, state waste
agency, and the POTW. Significant industrial
users, whose discharge is more than 25,000
gallons per day, must submit to the POTW a
semiannual description of the nature, con-
centration and flow of pollutants.
STORM WATER PERMITS
Storm-water permits are required for areas
where material-handling equipment or activ-
ities, raw materials, intermediate products,
final products, waste materials, by-products,
or industrial machinery are exposed to
storm water which drains to a municipal
seperate storm-sewer system or directly to a
receiving body of water.
Storm water permit applications include a
site map including:
• topography;
• drainage area;
• areas used for outdoor storage or dis-
posal;
• materials loading and access areas;
• each of the facility’s hazardous waste
treatment, storage or disposal facilities;
• each well where fluids from the facility
are injected underground; and
• springs and other surface-water bodies
that receive storm-water discharges.
A certification that all outfalls have been
tested or evaluated for the presence of non-
storm water discharges that are not covered
by an NPDES permit must be made, and this
certification must include a description of
the method used, dates and the observed on-
site drainage points.
USEPA’s general permits cover the majori-
ty of storm-water discharges associated with
industrial activity. Storm-water discharges
associated with industrial activity that can-
not be authorized by USEPA’s general per-
mits include those:
• with an existing effluent limitations
guideline for storm water;
• that are mixed with non-storm water,
unless the non-storm water discharges
are in compliance with a different
NPDES permit;
• with an existing NPDES individual or
general permit for the storm water dis-
charges;
• that are or may reasonably be expected
to be contributing to a violation of a
water quality standard; or
• that are likely to adversely affect a list-
ed or proposed to be listed endangered
or threatened species or its critical
habitat.
A facility must submit a Notice of Intent to
the USEPA to be authorized by the general
permit. A Notice of Intent does not require
the collection of discharge sampling data.