REV100527

• Permit No: M1999034
• IBM Index Class Name: Revision
• Doc Date: 4/29/2003
• Doc Name: Adequacy Letter
• From: DMG
• To: ADCO Consulting Inc
• Type & Sequence: AM1
• Media Type: D
• Archive: No

operator shall notify the Office of a reportable spill within the permit area using the same timeframe required by
the permit, license, notice, Act, Rule or Regulation governing [he reporting of the spill to the appropriate
agency. Notice of a reportable spill shall be Faxed to: Minerals Program Supervisor, Division of Minerals and
Geology, FAX [phone]. The FAX shall include atoll-back number of a responsible company official
for DMG staff to use as a contact "
18. Your plan includes statements on the Exhibit C map that no mining will occur within 200' of [he C.D.O.T.
right-of--way and the Excel Towers and within 6S of the Fulton Ditch without agreements or approvals
from the owners. Any such agreements or approvals must be reviewed and approved by [he Division of
Minerals and Geology before Aggregate Industries can affect the land in question. Please add such a
statement [o your application. This will also be the case for any other structures within 200 fee[ added to
the amendment application.
EXHIBIT E -Reclamation Plan
19. You have included reclama[ion/revegetation plans in your Exhibit J -Soils Information. Please include the
plans in this exhibit or explain why [hey aze not included in this exhibit. Slate whether you aze committing
to these plans under this exhibit.
20. In accordance with Rule 6.4.5(a), state the amount of affected acreage accorded to dry land revegetation
and to wetland revegetation.
21. Section 3.1.5(1) requires that grading shall be carried on so as to create a final topography appropriate to
the final land use selected in the Reclamation Plan. Please clarify the statement "Interim planting of
wetlands vegetation shall be undertaken, whenever a minimum of 5 acres has been filled to within 3'-5'
above the original lake surface." This sentence seems to imply that wetlands will be established on aeeas
backfilled to 3'-S above the ground water level. Wetlands can only be established where water 15 a[ Or
near the soil surface. Lands filled to 3'-5' above [he original lake surface cannot be successfully reclaimed
[o wetlands unless something is done [o raise the water surface. Please clarify your backfilling/grading
plans in relation to the areas [o be reclaimed to wetlands.
22. Section 3.1.5(11) states "No unauthorized release of pollutants to groundwater shall occur from any
materials mined, handled or disposed of within the permit area." An adjacent property owner, Karen Topper, states
that the Henderson azea is within a ground water contaminant plume. She states that the Henderson azea was
identified as containing high levels of diisopropylmethylphosphonate (DIMP). She states "Given the known
contaminant plume in [his azea, excavation activities associated with removal of aggregate materials within [he zone
of water table fluctuation will remobilize contaminants [ha[ had adsorbed on the subsurface alluvial materials. She
says "This mobilization can produce an immediate threat to human health by ingestion of contaminated drinking
water supplies. Ms Topper's domestic use well, according to her is 30 feet east of the property line (65 feet from
your proposed mining limit boundary) and developed in a bedrock aquifer. Demonstrate that the contamination
DIMP and other contaminants she refers [o do no[ exist in [he amendment azea or if they do, demonstrate that your
proposed mining and reclamation operations will not mobilize it and contaminate her drinking water to a level above
safe drinking water standazds. (see Rule 3.1.6(b) If the Division determines that there is potential for your
proposed operation [o affect ground water quality you will be asked to address the specific requirements of Section
3.1.7 of the Rules
23. Ms Topper states that if water levels in the lake are reduced significantly, the resulting water level decline
in the surrounding aquifer may be such that her well would go dry when pumped. Demonstrate that your
mining operation will not lower the water table to the extent that i[ would result in injury to [he water rights
in her imgation and other wells. Make this same demonstration for any other wells within 600 feet of your
proposed amendment area affected land. (Rule 3.1.6(a))