REV06832

• Permit No: C1992081
• IBM Index Class Name: Revision
• Doc Date: 3/31/2006
• Doc Name: Letter, Application and Public Notice
• From: Hydro-Environmental Solutions Inc
• To: DMG
• Type & Sequence: TR7
• Media Type: D
• Archive: No

March 30, 2006
Mr. Byron Walker
Re: Hayden Gulch Loadout, Permit C-92-081
Responses to Midterm Permit Comments
Page I2
Respouse: Exhibit 3-1 has been revised to show only surface ownership of parcels within and
adjacent to the permit area. Anew exhibit, Exhibit 3-lA, Easements, has been developed to show
easements within and adjacent to the permit area and should be inserted into the PAP in accordance
with the accompanying insertion instructions.
Rule 2.10.3(1)(1)
Item 28. A map ofpre-disturbance topography was not found in the PAP. Please include such a
map in the PAP, (A (extract) United States Geological Survey (USGS) Mount Harris
quadrangle with the permit boundary indicated would suj~ce.)
Response: New Exhibit 4-2, Pre-Mining Topography, is included with the submittal package. It
should be inserted into the PAP in accordance with the accompanying insertion instructions.
Rule 4.03.1(1) (i)
Item 29. A certification for an existing haul road (HGLF-HRI) is referenced on page 5 of Tab 12
as Exhibit 12-5. This exhibit was not found in the PAP. Typical cross-sections are at
page 9 of Tab 12 (Figure 12-1). Please add this certification to the PAP. The
certiftcation for the proposed haul road is certified at Exhibit 12-5.
Response: Please see HGTI's response to Comment No. 11, above.
Rule 4.03.2<1) (i)
Item 30. No certiftcations for (existing) access roads or (designs) proposed by TR-06 were found
in the PAP. Please add these certifications to the PAP.
Response: Please see HGTI's response to Comment No. 12, above.
Two sedimentation ponds collect runoff from the greater disturbed areas. A number of small area
exemptions (SAE) demonstrations (Tab 12-2) indicate that small areas are in compliance.
Rule 4.05.1(4)
Item 31. The substation SAE calls for silt fencing, as does the office and leach freld SAE (Tab 12
and Exhibit 12-2). Please update these SAES if silt fencing is not being maintained
Response: HGTI will assure that the silt fences are maintained to assure continued compliance with
the small area exemption demonstrations contained in Appendix 12-2. If either silt fence needs to
be fixed or replaced, HGTI will implement the necessary maintenance activity as soon as weather
conditions at the site allow for the work to be conducted.
Item 32. There is no sediment control feature identified for disturbances along the water supply
line. Please add an SAE demonstration jor this feature.
Response: HGTI strongly disagrees with the Division's insistence that there is still a disturbance
along the water pipeline corridor. The pipeline was installed during the 1975/1979 period. The
corridor was subsequently revegetated. Today there is no noticeable difference in the quality of
Hydro-Environmental Solutions, Inc.
P.O. Bos 772996
5710`" Street, Suite B
Steamboat Springs, C080477
[phone]