A.
It is unlawful for any person to discharge, or cause to be discharged,
to a stormwater drainage system or water body any substance or material,
including, but not limited to, pollutants or waters containing any
pollutants that cause or contribute to a violation of applicable water
quality standards, other than stormwater or an authorized discharge.
This prohibition includes the commencement, conducting, or continuance
of any illicit discharge by any person to a stormwater drainage system
or water body.
B.
Any person discharging stormwater shall effectively prevent pollutants
from being discharged with the stormwater, except in accordance with
BMPs.
C.
The authorized enforcement agency is authorized to require dischargers
to implement pollution prevention measures, using stormwater pollution
prevention plans and BMPs, as determined necessary by the authorized
enforcement agency to prevent or reduce the discharge of pollutants
to a stormwater drainage system or water body.
D.
The discharge prohibitions of this section shall not apply to any
nonstormwater discharge authorized under an NPDES permit, waiver,
or waste discharge order issued to the discharger and administered
under the authority of the EPA, provided the discharger is in full
compliance with all requirements of the permit, waiver, or order and
other applicable laws and regulations, and provided that written approval
has been granted for any discharge to the stormwater drainage system.
A.
It is unlawful for any person to construct, use, maintain (or to
allow the construction, use, maintenance or continued existence of)
an illicit connection.
B.
This prohibition expressly includes, without limitation, illicit
connections made prior to the effective date of this chapter, and
regardless of whether the connection was permissible under law or
practices applicable or prevailing at the time of connection.
The following nonstormwater discharges are permissible, but
only if they do not result in a violation of State of Michigan Water
Quality Standards and provided that they are undertaken in compliance
with any applicable or required BMPs:
A.
Water supply line flushing.
B.
Landscape irrigation runoff.
C.
Diverted stream flows.
D.
Rising groundwater.
E.
Uncontaminated groundwater infiltration to storm drains.
F.
Uncontaminated pumped groundwater.
G.
Discharges from potable water sources.
H.
Foundation drains.
I.
Air-conditioning condensate.
J.
Irrigation water.
K.
Springs.
L.
Water from crawl space pumps.
M.
Footing drains and basement sump pumps.
N.
Lawn watering runoff.
O.
Waters from noncommercial car washing.
P.
Flows from riparian habitats and wetlands.
Q.
Residential swimming pool water and other dechlorinated swimming
pool water (which is dechlorinated in accordance with product directions),
provided that any filter backwash water that is present is treated.
R.
Residual street wash water.
S.
Discharges or flows from emergency firefighting activities.
T.
Discharges specifically authorized in writing by the authorized enforcement
agency as being necessary to protect public health, welfare, and safety
or the environment.
Except as permitted by law, it shall be unlawful for any person
to store or stockpile, within a floodway, any hazardous or toxic materials,
unless adequate protection and/or containment has been provided so
as to prevent any such materials from entering a stormwater drainage
system or water body.