INSPEC45075

• Permit No: M1978056
• IBM Index Class Name: Inspection
• Doc Date: 5/11/2004
• Doc Name: Insp Rpt
• From: DMG
• To: Tusco Inc.
• Inspection Date: 5/11/2004
• Media Type: D
• Archive: No

(Page 4)
MINE ID # OR PROSPECTING ID #: na-~ a~a-nsF
INSPECTION DATE: n5/~ i/na INSPECT-OR=S INITIALS: ~AS-
The following problems (PB) and/or possible violations (PV) (and suggested corrective actions) were identified during this
inspection. The problems should be corrected by the dates given, or they will become possible violations. The possible
violations should be corrected by the dates given to reduce their severity when considered by the Mined Land Reclamation
Board. The inspector noted on the previous page should be notified of all corrective actions taken.
PROBLEMSlPOSSIBLE VIOLATIONS
AND
CORRECTIVE ACTIONS
CORRECTION
DATE
1. The current configuration of the existing fkxxl control dike along the south bank of the 04/30/04
Cache La Poudre River is not in compliance with the approved construction specifications. In &
particular, the flood control dike averages 15.7' above the bed of the Cache La Poudre River 12/31/04
while the approved plan specifies that the dike is to be raised to a point approximately 9' above
the bed of the Cache La Poudre River. This configuration creates a potential for adverse
offsite damage to surrounding property owners, and thus possible non-compliance with (previously
Sections 34-32.5-116(1) and 34-32.5-116(4)(1), Rule 3.1.5(3), and the Permit for failure to follow specified)
the reclamation prescribed by the reclamation plan, and therefore, failure to protect areas outside
of the affected land from damage during the mining operation and reclamation, and for failure
to limit the height of the constructed Flood control dike to no more than 9' above the bed of the
Cache La Poudre River.
CORRECTIVE ACTION: The previous corrective actions specified were as as follows: PB or PV: PV
TOPIC(S): MP
Implement a temporary control measure on or before 04(30/04 to minimize the potential
for possible adverse flood related impacts during the 2004 runoff season; and implement a
permanent solution to the offsite Flood impact concern on or before 12/31/04.
Acceptable temporary control measures may include a) reducing the height of the dike to
no more than 9' above the bed of the river channel, b) provide a survey of the north and
south banks of the Cache La Poudre River for the reach within the permit boundary which
verifies that any floodwaters expected during the 2004 runoff season will be routed safely
through the Durham Pit and away from any neighboring, offsite structures (Such spillways
must receive prior review and approval of the Division).
Acceptable permanent solutions may include a) reducing the height of the dike to no more
than 9' above the bed of the river channel, and verifying that such elevation is in compliance
with County and Federal Flood Control requirements, b) installing a series of properly
engineered, permanent spillways designed to withstand the Flood velocities and Flows
expected fora 100-year flood event (such spillways must receive prior review and approval
from the Division and must also comply with County and Federal Flood Control requirements),
or c) submit an application for a permit amendment to revise the approved design
configuration of the flood control dike (such design configuration must have prior approval
from Weld County, FEMA, and the US Anny Corps of Engineers)