2007-12-25_INSPECTION - M1977344 ‎(2)‎

• Permit No: M1977344
• IBM Index Class Name: INSPECTION
• Doc Date: 12/25/2007
• Doc Name: Insp Rpt
• From: DRMS
• To: Holcim
• Inspection Date: 12/19/2007
• Media Type: D
• Archive: No

ORIGINAL -PUBLIC FILE
(Page 2)
MINE ID # OR PROSPECTING ID #: M-1977-add
INSPECTION DATE: l2/19im INSPECTORoS INITIALS: ~-
OBSERVATIONS
The Division conducted a monitoring inspection of the site as part of sites to be
inspected during the fiscal years 2007-2008. Present during the inspection was
Mr. Joe Lamanna quarry manager, Mr. Joel Bolduc Environmental Manager & Mr. Thomas
Newman, Chief geologist. Site is a large 112 Lime Stone and sand and gravel quarry,
covering 1600 acres of permit and affected area with post mining land use as Range
Lnad..
Prior to the physical inspection, the Division sat down with the representatives and
explained the few issues that still remain to be resolved after Technical Revision #6
and Amendment # 1 were approved in 2003. Mainly the fact that the Division was going to
recalculate the financial warranty for the site and also set ground water monitoring
compliance points with numeric protection levels. Due to specialist resigning and
retiring both issues were never completely resolved. It is the Division's intention to
resolve and complete all the remaining unresolved issues with in the next 6 months.
Also discussed the possibility of regulating the Kiln Cement Dust disposal area
falling under the jurisdiction of the Colorado Department of Health and Environment,
Hazardous Waste Section and encouraged the operator's to see if such disposal is in
deed covered under their jurisdiction. At present DRMS, had accepted the responsibility
and had authorized the material(CKD) to be used as backfill in the limestone quarry.
The Division requested Hocium, commence with their Gw monitoring plan on a quarterly
basis, starting with winter quarter and once the Division receives a couple of quarters
worth of data, it will be compared with the existing five quarters of data and THE new
TCLP, data for the cement Kiln Dust. If the new data, still does not shows no toxic
metals to be present, then DBMS will set numeric protection levels for a few selected
wells for the site, such as Selenium, Sulfate and Manganese. Operator agreed to
commence the ground water monitoring and also provide one set of TCLP data from the
cement Kiln dust.
1) After the meeting, began the physical site inspection by getting an overview of the
affected areas from the top of the clinker plant. It was active at the time of the
inspection. From the top looked at the Overview of the affected areas, including the
two pits, CKD disposal area and all the facility structures. In addition along the
East and South side of the affected area small stockpile of numerous sizes of old
tires were noted. The operator's explained that these tires were being utilized in
addition to coal, as fuel for the clinker production. Since old tire placement was
never included in the approved permit, operator was notified to include these area
in the Technical Revision, that will be submitted for the upland diversion that the
operator propose to put in place along the North West side of the limestone quarry.
2) After the overview from the top, continued the inspection with Joe Lamnnna. None of
the facility buildings, clinker silos,trummles, office buildings, tire shredding
facility, and all support buildings for the production area were ever included in
the previous warranty, which stands at present at $268,550.Since all the facilities
have to be demolished and removed from site, the Division request Holcim to provide
details of all structures in the area, with a very detailed faculties map showing
their locations, square footage, and kinds of material they were constructed from.
In addition thickness of all concrete footings, for all the structures including the
office buildings and shops.
3) Inspected the pit areas, both were active at the time of the inspection. Observed
the are where cement kiln dust was being used as backfill. According to Holcium,
cement kiln dust at the plant is produced at smaller amounts than was anticipated
when TR #6 was submitted and approved.
4) Observed the monitoring well. As reported above, the Division has requested the
operator to start sampling all monitoring wells and conduct one TCLP test on the
cement kiln dust and provide the results. DRMS will evaluate the data and compare it
with results submitted in 2003. If the changes noted are negligible, after the data
is correlated with existing results, DRMS will set numeric protection levels for
those metals that are above the classified protection levels for the GW regime and