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2.6.4 Discharges from Exempt Parties
Several categories of facilities are regulated by the USEPA for stormwater discharges
under other permits. Because these facilities are already responsible to one
enforcement authority for stormwater discharges, the municipality can exempt them
from their municipal ordinance. Ifa municipality encounters an illicit discharge that is
suspected or determined to be coming from an exempt party that is regulated under
some other stormwater regulation, the municipality should notify both the suspected
discharger and the enforcement authority for that discharger. The notification can be
verbal or in writing. Most municipalities have prior experience working with other
enforcement authorities for suspected violations of either state or federal law.
The following is a brief list of parties that are regulated under an alternate stormwater
program:
TABLE 2-10:
EXAMPLE EXEMPT FACILITIES
«: Alternate Regulation They Are Enforcement
Exempt Facility Subject To Authority
NPDES General Permit for
Stormwater Discharges from Small
Municipal Separate Storm Sewer
Systems (MS4s), Part V
New Hampshire Department
of Transportation (NHDOT) (in
selected urbanized areas)
USEPA
University of New Hampshire
(UNH) (Durham), Youth
Development Center
(Manchester), Stafford County
Complex (Dover)
NPDES General Permit for
Stormwater Discharges from Small
Municipal Separate Storm Sewer USEPA
Systems (MS4s), Part IV
Industrial Facilities with
selected SIC codes (See Table
2-11 for a complete list)
Multi Sector General Permit for
Industrial Activities USEPA
As shown in Table 2-9, if a municipality identifies that an illicit discharge has come
from one of these facilities, they should notify both the discharger and the enforcement
authority verbally or in writing of the activity. Standard Industrial Classification (SIC)
codes for NPDES Stormwater Multi-Sector General Permit (MSGP) Industrial
Facilities are listed in Table 2-11.
Hic it Discharge Detection and Himination Plan 54
