2014-10-21_HYDROLOGY - M2012032

• Permit No: M2012032
• IBM Index Class Name: HYDROLOGY
• Doc Date: 10/21/2014
• Doc Name: Ground water systems & proposed standards
• From: Greg Lewicki and Assiciates, PLLC
• To: DRMS
• Email Name: RCO
• Media Type: D
• Archive: No

Table of Contents
Chapter 1- General Overview ........................................................................................ ..............................1
History of Revenue /Virginius Mine .......................................................................................... ..............................1
Purposeof Report ................................................................................................................... ...............................
1
Chapter 2 - Sampling Overview ...................................................................................... ..............................1
Chapter3 - Groundwater Seep ...................................................................................... ............................... 2
Chapter 4 - Groundwater Wells ..................................................................................... ............................... 3
Chapter5 - Data Comparison ......................................................................................... ..............................4
Shallowand Deep Well Samples .............................................................................................. ..............................4
Well Water and Surface Water Data ...................................................................................... ...............................
4
WellWater and Seep Water Data ........................................................................................... ...............................
5
Chapter 6 - Groundwater Representation ..................................................................... ............................... 5
Explanationof Methodology .................................................................................................. ...............................
5
RepresentativeValue .............................................................................................................. ...............................
6
Chapter 7 - Proposed Standards .................................................................................... ............................... 7
CDPHEIn- Stream Standards ................................................................................................... ...............................
7
CDPHEGroundwater Standards ........................................................................................... ...............................
11
CDPHE Domestic Use Groundwater Standards ................................................................ ...............................
11
CDPHE Agricultural Use Groundwater Standards ............................................................... .............................12
CDPHE Groundwater Standard Classification ................................................................... ...............................
13
Explanationof Methodology .................................................................................................. .............................13
ProposedStandards ................................................................................................................ .............................14
Appendices.................................................................................................................... .............................16
A. Seep ICP Results ............................................................................................................ ...............................
16
B. Shallow vs. Deep Well Water Comparison ..................................................................... .............................19
C. Well Water vs. Surface Water Comparison .................................................................. ...............................
21
D. Well Water vs. Seep Water Comparison ...................................................................... ...............................
24
E. Well Water ICP Results and Representative Value Calculations .................................. ...............................
26
F. Map of City of Ouray Water System ............................................................................. ...............................
28
G. CDPHE Human Health Standards .................................................................................... .............................29
H. CDPHE Agricultural Standards ...................................................................................... ...............................
31
Bibliography................................................................................................................. ............................... 32
Tableof Figures ............................................................................................................ ............................... 33
Tableof Tables ............................................................................................................. ............................... 33