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2018-06-25_REVISION - M2011001 (2)
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2018-06-25_REVISION - M2011001 (2)
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Entry Properties
Last modified
1/28/2021 3:29:58 AM
Creation date
6/25/2018 4:15:27 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
M2011001
IBM Index Class Name
Revision
Doc Date
6/25/2018
Doc Name Note
Evaluation of Reclamation Improvements
Doc Name
Formal Complaint
From
Timothy Iverson
To
DRMS
Email Name
PSH
Media Type
D
Archive
No
Tags
DRMS Re-OCR
Description:
Signifies Re-OCR Process Performed
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�".� TZA Wakor En�ineors <br /> April 5, 2018 ------- <br /> a Lamp Rynearson Company <br /> 12596 W. Boyoud Ave., Ste. 330 <br /> Timothy and Jeanne Iverson Lakewood, Colorado 80228 <br /> 5011 F Street [P1 303,971 0030 <br /> Greeley, CO 80631 tza4water.com <br /> VIA Email <br /> Re: Iverson Mine Reclamation <br /> Water Division 1,Water District 3 <br /> Weld County,Colorado <br /> Evaluation of Reclamation Improvements <br /> Dear Mr. Iverson: <br /> TZA is pleased to present this report regarding our evaluation of the reclamation improvements at the <br /> Iverson Mine. Our evaluation was structures to address concerns by the owner,Tim Iverson,regarding <br /> the existing condition of the spillway structures,the final site grading,the adequacy of the improvements <br /> to survive future floods and the long-term stability of the site. Our evaluation was based on site <br /> observations, topographic survey of as-built conditions and hydraulic modeling of the river and <br /> spillways. <br /> The following information was used in this evaluation: <br /> • DMRS Iverson Mine 112c Pen-nit Application First Adequacy Review,April 1,2011. <br /> • DMRS Iverson Mine I I2c Permit Application Second Adequacy Review,May 17, 2011. <br /> • Iverson Mine,Response to DRMS 3rd Adequacy Review Comments,Tetra Tech,June 6,2011 <br /> and July 8,2011 <br /> • Technical Review Guidelines For Gravel Mining & Water Storage Activities Within or <br /> Adjacent to 100-Year Floodplains,UDFCD,January 2013 <br /> • Colorado Division of Reclamation Mining and Safety (DMRS), Minerals Program Inspection <br /> Report March 17, 2016. <br /> • As-Constructed Riverside Spillways and Site Grading,Iverson Mine,Tetra Tech,June 16,2016 <br /> • Iverson Mine Site Grading Plan,Tetra Tech,August 25,2017. <br /> • Technical specifications Iverson Mine Site Grading, Tetra Tech,August 2017. <br /> • DMRS Request for Technical Revision submitted by Martin Marietta, September 1, 2017 <br /> LAMP RYNEARSON COMPANIES <br /> TZA Water 6i`lnas» LARKIN, �/II/fiClUATICS <br /> LAMP RYNEARSON <br /> LAMP RYNEARSON <br />
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