2010-10-27_REVISION - M1977223

• Permit No: M1977223
• IBM Index Class Name: REVISION
• Doc Date: 10/27/2010
• Doc Name: Adequacy Review Response
• From: LJ Development, Inc.
• To: DRMS
• Type & Sequence: AM1
• Email Name: MAC
• Media Type: D
• Archive: No

Asbestos Containing Materials Asbestos Contaminated Soil - All work on asbestos containing materials (ACM) must comply with
the applicable requirements of the CDPHE Air Pollution Control Division's (APCD) Regulation 8. Disposal of ACM, and work done in
asbestos-contaminated soil, must comply with the CDHPE Hazardous Materials and Waste Management Division's (HMWMD) Solid
Waste Regulations. The application for any CDOT permit must specifically identify any ACM involved in the work for which
authorization Is being requested. Additional guidance or requirements may be specified in the permit special provisions. Contact
Info: CDPHE APCD and HMWMD Regulations can be accessed via the CDPHE Environmental Permitting Website listed above.
Additional information conc_ernlna clearance on CDOT protects is available from Julia Horn, CDOT Asbestos Project Manager (303)
512-5519, or Theresa Santangelo-Dreiling, Property Management Supervisor [phone].
Construction Stormwater PermitL Stormwater Dtscharae From Industrial Facilities - Discharges of stormwater runoff from
construction sites disturbing one acre or more - or certain types of industrial facilities - requires a CDPS Stormwater Permit. Contact
Infonnatfon: For Utility/Special Use activities being performed in conjunction and coordination with a CDOT highway construction
contract, please contact: the CDOT Water Quality Program Manager at [phone]. Otherwise, contact the CDPHE Water Quality
Control Division at 303 692-3500. Website: htID://WWW.Cdt)he.state.ro.ustwci/PermitsUniYwacdl3mLh!M[
Construction Dewatering (Discharge or infiltration) - Discharges of water encountered during excavation or work in wet areas
may require a Construction Dewatering Discharge Permit. Contact /nfonnatlon: For Construction Dewatering Discharge Permits,
contact the CDPHE WQCD at [phone]. Website:htt r. /www cd he. state co.us/w /PermitsUniU cd mt.html
Minimal Industrial Discharge Permit - Discharges of small quantities of wastewater or wastewater requiring minimal treatment,
such as that resulting from hydrostatic testing or certain wash waters, may require a Minimal Industrial Discharge Permit ("MINDI").
Contact Info: Contact the CDPHE WQCD at 303 692-3500. Website: http://www.cdohe.state.co.us/wa[PermitsUniYwacdDmt.html
Municipal Separate Storm Sewer System f MS41 Discharge Permit - Discharges from the storm sewer systems of larger
municipalities, and from the CDOT highway drainage system that lies within those municipalities, are subject to MS4 Permits issued
by the CDPHE WQCD. For facilities that lie within the boundaries of a municipality that is subject to a MS4 permit, the owner of such
facility should contact the municipality regarding stormwater related clearances that may have been established under that
municipality's MS4 permit. All discharges to the CDOT highway drainage system must comply with the applicable provisions of the
Colorado Water Quality Control Act and the Colorado Discharge Permit Regulations, and are subject to inspection by the CDOT and
the CDHPE. Contact Information: Contact the CDPHE Water Quality Control Division at [phone] for a listing of municipalities
required to obtain MS-4 Permits or no to htt : .cd h .sae o us/w a its ni cd mt.h m u ic' F r Guidance.
Discharge of Dredged or Fill material - 404 Permits Administered By the U.S. Army Corps of Enalneers and Section 401
Water Quality Certlfications Issued by the CDPHE WQCD - Corps of Engineers 404 Permits are required for the discharge of
dredged or fill materials Into waters of the United States, including wetlands. There are various types of 404 Permits, Including
Nationwide Permits, which are issued for activities with relatively minor impacts. For example, there is a Nationwide Permit for Utility
Line Activities (NWP #12). However, depending upon the specific circumstances, it is possible that either a "Generar or "Individual"
404 permit would be required. If an Individual 404 Permit is required, Section 401 water quality certification from the CDPHE WQCD
is also required, Contact Information: Contact the appropriate Corps District Regulatory Office for information about what type of 404
permit may be required information provided at to of ECIS . Contact the CDPHE Water Quality Control Division at 303 692-3500.
Erosion and Sediment Control Practices - For activities requiring a Construction Stormwater Permit, erosion control requirements
will be specified through that permit. In those situations where a stormwater permit is not required, all reasonable measures should be
taken in order to minimize erosion and sedimentation. In either case, the CDOT Stormwater Quality and Erosion Control Guide (2002)
should be used to design erosion controls. Contact Information: The CDOT Stormwater Quality and Erosion Control Guide may be
obtained from the Bid Plans Office at 303 757-9313 or from: http://www.dot.state.co.uslonvironmentaVenvWaterQual/woms4.ast)
Disposal of Drilling Fluids - Drilling fluids used in operations such as Horizontal Directional Drilling may be classified as "discharges"
or "solid wastes", and in general, should be pumped or vacuumed from the construction area, removed from the State Highway Right
of Way, and disposed of at permitted facilities that specifically accept such wastes. Disposal of drilling fluids into storm drains, storm
sewers, roadside ditches or any other type of man-made or natural waterway is prohibited by Water Quality Control and/or Solid
Waste regulations. Small quantities of drilling fluid solids (less than 1 cubic yard of solids) may be left on-site after either being
separated from fluids or after infiltration of the water, provided: 1) the drilling fluid consists of only water and bentonite clay, or, if
required for proper drilling properties, small quantities of polymer additives that are approved for use in drinking water well drilling; 2)
the solids are fully contained in a pit, and are not likely to pose a nuisance to future work in the area, 3) the solids are covered and the
area restored as required by CDOT permit requirements (Utility, Special Use, or Access Permits, etc.). Contact Information:
Contact the CDOT / CDPHE Liaison or CDOT Water Quality Program Manager.
Concrete Washout - Waste generated from concrete activities shall NOT be allowed to flow into the drainage ways, inlets, receiving
waters, or in the CDOT ROW. Concrete waste shall be placed in a temporary concrete washout facility. Concrete washout shall only
be performed as specified by the CDOT Environmental Program and shall be in accordance to CDOT specifications and guidelines.
Contact Information: Contact the CDOT Water Quality Program Manager at 303 757-9343.
Spill Reporting - Spills shall be contained and cleaned up as soon as possible. Spills shalt NOT be washed down into the storm
drain or burled. All spills shall be reported to the CDOT Illicit Discharge Hotline at [phone] (4H20), as well as the Regional
Permitting Office and Regional Maintenance Supervisor. Spills on highways, into waterways, or that may otherwise resent an
Environmental Clearances Information Summary Page 2 of 3 Colorado Department of Transportation November'07