2020-02-11_PERMIT FILE - C1981038A ‎(2)‎

• Permit No: C1981038A
• IBM Index Class Name: Permit File
• Doc Date: 2/11/2020
• Doc Name Note: delete
• Doc Name: Figures & Tables
• Section_Exhibit Name: delete
• Media Type: D
• Archive: Yes

-13-
• TABLE 6. (case 3)
September Z6, 1982
Chemical Parameter Justification
Sulfate (504) a predominant anion in mine drainage at the Edna
Mine, concentration increased above background levels
(McWhorter, et al., 1975); conrentrat±ons may
increase in waters near surface mines in the Western
U.S. (Everett, 1979); needed to evaluate ion
balances.
Sulfur an indicator of the acid-base forming potential of
% pyritic sulfur spoils or refuse rock: ~ pyritic sulfur is an
:sulfate sulfur indicator of acid-forming potential; t sulfate
~ organic sulfur sulfur is an indicator of base-forming potential;
total sulfur Y organic sulfur is an indicator of the potential
for spontaneous combustion of a mine's refuse pile.
Trace Aluminum (AS) a major component of clays; may become attached to
EZetmnts suspended colloids; aluminum bound to clay colloids
may clog gills in fish, resulting in suffocation
(Willingham, 1982).
Arsenic (AS) concentration reported to increase an mine spoils
water at the Edna Mine (Skogerboe, et al., 1979);
• conrentrations may increase in waters near surface
mines in the Western U,S. (Everett, 1979); likely
to have a higher than average concentration in coal
and associated shales (NAS, 1977); may be a pollutant
associated with fly ash disposal in surfare mines in
the western O.S. (Everett, 1979).
Boron (B) an Indicator of the usefuZlness of spoils and refuse
rock as a plant growth medium (Bingham, 1973); con-
centrations may Increase in waters near surface
mines in the western U,S. (Everett, 1979).
Cadmium (Cd) cronrentrations say increase in waters near surface
mines fn the western U.S. (Everett, 1979); may be
a pollutant associated with fly ash disposal in
surface mines in the western U.S. (Everett, 1979).
Copper (Cu) concentrations may increase in waters near surface
mines in the western U.S. (Everett, 1979)] may be
~,, a pollutant associated with fly ash disposal in
surface mines in the Western U.S. (Everett, 2979);
change in Cv:Mo ratio could cause molybdenosis in
livestock.
Iron (tee) increased concentration reported in mine spoils
water at the Edna Mine (Skogerboe, et a1., 2979);
concentrations tray increase in waters near surface
mines in the western U.S. (c^verett, 1979); ef.°luent
limitations from Rule 4.05.2(:).