2008-03-31_REVISION - C1981025

• Permit No: C1981025
• IBM Index Class Name: REVISION
• Doc Date: 3/31/2008
• Doc Name: Email Regarding Letter being mailed
• From: Tom kaldenbach
• To: Jim Stark
• Type & Sequence: RN5
• Media Type: D
• Archive: No

email: [e-mail]
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>>> "Kaldenbach, Tom" <[e-mail]> 3/3/2008 9:41 AM >>>
Andrew,
on re-reading my email I see that I did not mention that after passing the through the
passive treatment ponds, the iron content of the mine water discharge to North Thompson Creek
(at the former 001 outfall
location) have always been less than 1 mg/1.
for the mine water discharges before they pass
The iron concentrations noted in my email are
through the treatment ponds.
Thanks for looking into this.
Tom
-----Original Message-----
From: Andrew Neuhart [mailto:[e-mail]]
Sent: Monday, March 03, 2008 7:59 AM
To: Kaldenbach, Tom
Subject: Re: North Thompson Creek Mines (CDRMS Permit C-81-025/CDPSPermit CO-0029599)
Tom,
On first look, I am not sure why we would terminate this permit. It appears we were under
the influence that all discharge has stopped, yet your assessment shows that it has not. I
will dig in to this and get back to you.
Thanks
Andrew Neuhart
Industrial Permits Unit
Water Quality Control Division
4300 Cherry Creek Drive South
Denver, CO 80246-1530
phone:[phone]
fax: [phone]
email: [e-mail]
Visit our web site at:
www.cdphe.state.co.us/wq/PermitsUnit
>>> "Kaldenbach, Tom" <[e-mail]> 2/29/2008 4:07 PM >>>
Andrew,
My office is reviewing an application from the operator of the North Thompson Creek Mines for
final release of reclamation bond. In a final bond release my agency would terminate its
jurisdiction over the site.
This site consists of three underground coal mines in Pitkin and Garfield Counties.
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