My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
REP43088
DRMS
>
Back File Migration
>
Report
>
REP43088
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/25/2016 12:45:09 AM
Creation date
11/27/2007 9:47:47 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981034
IBM Index Class Name
Report
Doc Date
10/29/1984
Doc Name
1983 HYDROLOGIC REPORT
Annual Report Year
1983
Permit Index Doc Type
HYDROLOGY REPORT
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
13
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
-5- <br />• waste. All of these piezometers were installed subsequent to placement <br />of waste on the site; therefore, they cannot be directly correlated <br />to pre-existent conditions. The water level in these piezometers was <br />highest during mid-winter, but had little variation overall. All of <br />the piezometers monitored for field information showed a slightly <br />acidic pN. This is in sharp contrast to the normal mine water, which <br />has a pH around 8.4. The pH of these refuse piezometers is similar <br />to the old mine water, and may have a similar source in roof rock not <br />ordinarily exposed to water. The conductivity varies differently with <br />each well. R-1 remained constant (with the exception of surface water <br />leakage). R-3 and R-6 increased during the year, and R-4 decreased <br />during the year. The conductivity again shows similarities to the <br />old mine water in that it is higher than E-seam aquifer water. <br />The sediment pond piezometers consist of three on the outer toe <br />of the sediment pond and one north of the pond. The three toe piezo- <br />meters were installed to monitor the stability of the dam. The P-4 <br />was a nearby drill hole for the D-seam portal investigation. The toe <br />piezometers appear to exhibit a seasonal variation with their high <br />levels in May and their low levels in February, but these variations <br />are more likely to be affected by the mine dewatering. The average <br />water elevation in these piezometers is approximately the elevation of <br />the bottom of the cutoff trench for the dam. P-4 remained relatively <br />constant at a level below the average water level in the pond. <br /> <br />
The URL can be used to link to this page
Your browser does not support the video tag.