PERMFILE48500

• Permit No: M2001001
• IBM Index Class Name: Permit File
• Doc Date: 3/21/2001
• Doc Name: STATEMENT OF ISSUES
• Media Type: D
• Archive: No

' (10) "COMPENSATORY WETLANDS" means wetlands developed for mitigation of adverse
impacts to other wetlands (e.g. wetlands developed pursuant to section 404 of the
' federal Act).
(11) "CONSTRUCTED WETLANDS" means those wetlands intentionally designed,
constructed and operated for the primary purpose of wastewater or stormwater
treatment or environmental remediation provided under CERCLA, RCRA, or section 319
of the federal Act, if (a) such wetlands are constructed on non wetland sites that do not
contain surface waters of the state, or (b) such wetlands are constructed on previously
' existing wetland sites, to the extent that approval or authorization under section 404 of
the federal Act has been granted for such construction or it is demonstrated that such
approval or authorization is not, or was not, required. This term includes, but is not
limited to, constructed swales, ditches, culverts, infiltration devices, catch basins, and
sedimentation basins that are part of a wastewater or stormwater treatment system or a
system for environmental remediation mandated under CERCLA or RCRA.
Compensatory wetlands shall not be considered constructed wetlands. Constructed
wetlands are not state waters.
' (12) "CREATED WETLANDS" means those wetlands other than compensatory wetlands
created in areas which would not be wetlands in the absence of human modifications to
the environment. Created wetlands include, but are not limited to wetlands created
inadvertently by human activities such as mining, channelization of highway runoff,
irrigation, and leakage from man-made water conveyance or storage facilities.
Wetlands resulting from hydrologic modifications such as on-channel reservoirs or on-
channel diversion structures that expand or extend the reach of adjacent classified state
' waters are not considered created wetlands.
(13) "DISSOLVED METALS" means that portion of a water and suspended sediment sample
which passed through a 0.40 or 0.45 um (Micron) membrane filter. Determinations of
"Dissolved" constituents are made using the filtrate. This may include some very small
(Colloidal) suspended particles which passed through the membrane filter as well as the
' amount of substance present in true chemical solution.
(14) "DIVISION" means the Division of Administration of the Colorado Department of Public
' Health and Environment of which the Water Quality Control Division is a part.
(15) "FEDERAL ACT" means the Clean Water Act, U.S.C. Section 1251 et seg., as
amended.
(16) "FLOODPLAIN" means any flat or nearly flat lowland that borders a stream, a lake, or an
on-channel reservoir and that may be covered by its waters at flood or high stage as
' described by the parameter of the probable maximum flood or probable maximum high
stage.
' (17) "LC-50" means the concentration of a parameter that is lethal to 50% of the test
organisms within a defined time period.