_INSPECTION - M1984099

• Permit No: M1984099
• IBM Index Class Name: Inspection
• Doc Name: MINERALS PROGRAM INSPECTION REPORT
• Inspection Date: 6/5/1998
• Media Type: D
• Archive: No

(Page 2) •
MINE ID # OR PROSPECTING ID # M-84-099
INSPECTION DATE June 5. 1998 INSPECTOR'S INITIALS TAS
OBSERVATIONS
1. A site inspection was made at the request of Mr. Rex Fletcher of the Omaha District, U.S.
Army Coxes of Engineers. The purpose of the inspection was to discuss the resolution of an
existing Section 404 violation. Present during 'the inspection were Mr. Fletcher of the COE,
Rick Huff of Hall-Irwin Construction Co., and Steve O'Brian of Environment, Inc.
2. The site inspection revealed that the operator is in compliance with the approved mining
and reclamation plan, in spite of a pending Section 404 violation. The area of violation
occurs in the southern portion of the permit area along the north and south banks of various
sections of the St.Vrain Creek. St.Vrain Creek had severely eroded a number of banks within
the permitted area during previous high flow events. In response, the operator had applied
riprap to stabilize the eroded banks. The repair work, unfortunately, was done without prior
approval of a Section 404 Permit. Since then, the Corps of Engineers has issued a Section
404 Permit to the operator which requires that the banks be stabilized and that wetlands
vegetation be replanted.
3. In order to resolve the 404 Violation, the operator will need to reconstruct the banks of
St.Vrain Creek in several places to allow for establishment of wetland vegetation. Mr. Huff
and Mr. O'Brian were advised that such a change to the existing slopes and reclamation,
within the M-84-099 permitted area, can be permitted under the terms of a technical revision.
The technical revision application should include a map of the area(s) to be reconstructed,
a representative schematic of the work to be done, the size of riprap to be used, an estimate
of the number of linear feet of bank to be reworked, and a unit cost/linear foot for the
reconstruction work.
4. The approved mining plan requires that the operator maintain a minimum setback distance
of 100 feet from the water line of St.Vrain Creek. The proposed bank reconstruction and
revegetation effort should not adversely affect the reclaimed lake that is located at least
100 feet from the water line of the Creek.
I & E Contact Address
^ CE
NAME Jeff Greaa ^ BL
OPERATOR Hall-Irwin Construction Co. ^ FS
STREET 3026 4th St. P O. Box 519 ^ HW
CITY/STATE/ZIP Greeley. CO 80631 ^ HMWMD (CH)
^ SE
cc: Carl Mount, DMG ^ WQCD (CH)
^ OTHER
Steve O'Brian
Environment, Inc.
7985 Vance Dr., Suite 205A
Arvada, CO 80003
Rex Fletcher
Department of the Army
Corps of Engineers, Omaha District
215 North 17th Street
Omaha, Nebraska 68102-4978