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<br />1 <br /> <br /> <br />1 <br />1 <br /> <br /> <br /> <br /> <br /> <br /> <br /> <br />1 <br /> <br /> <br /> <br /> <br />William J. Carter March 12, 1998 <br />Re: Response to Susan Burgmaler's comments on the 1996 Annual Hydrologic Report <br />Sanborn Creek Mme does not have an explanation for the variation and appazent increase in total <br />dissolved solids for wells SC-1 and SC-2. The water quality, as related to total dissolved solids, has <br />been poor m the wells from the beginning, and sampling the wells for the past seven years has not <br />Qnproved the water quality. Water quality in the Rollins Sandstone "regional aqu~'er" does"not appear <br />to berelated to any mine activity, other than possibly the monitoring itself. Sanborn Creek Mme would <br />be more than willing to conclude no adverse impact to the Rollins Sandstone from mining, and <br />discontinue monitoring. <br />Graph 1. SC-1, SC-2, SC-3 and Lowest Mine Elevations <br /> 9C-1, 9C-2, 9C3 aril Lowest AA ine Elevafim <br />~ <br /> *yv°. <br />k r ri, .t <br />./'. rz {+~3.~W is *YY`7"e.~)~~a' <br />'i~ <br />~ <br />~` '~ ~~ <br />~.~ <br />G4 <br />0 t <br />RR <br />, <br />FF <br />,[ <br />. <br />pawl#^i//N d~~'."~'c /" .~SIF./f M' ~.~%.1~~~~vl ~s'l~i~~T <br />610 <br /> 5 <br /> ,f <br />` <br /> y~ ~ (~ <br />r, .~ 'L ~ F ~i t:Y4Z <br />.. <br />L y r qSi `ww(%{~l,~i' M ~~A4 <br />y <br />G"V h4. <br />~ h <br />~' <br /> <br />r~ ~ <br />A <br />i <br />.. <br />z; ,>,,. r, b <br />~' s , ~ s`"- -x--Lowest Minef3tvation <br />~ <br />Yr~ <br />1 *!'yY1 .Ve~F3 <yF :~;f RY; ~' *( ri ~~ .3r1 ~„3 rt-/%. <br />" <br />x <br />` <br />~, <br />.,s <br />~P' <br />, <br />~' < <br />' <br />~ <br />ll <br />SG1 W <br /> ~~ <br />, <br />F <br />, <br />..~ <br /><, „ ~f <br />. . <br />~n , » <br />ro ~ <br />s$fa , e <br />t <br />> 5800 <br />W r+~..>,~M. ~ ;: <br />".}xk'N ~i'r'{ , `~ <br />'"'ras ~ <br />, : <br />;,~~'~ <br />~} ~r~~~~~ ~_ 9G2 We11 <br /> ~ <br />d <br />~ <br />it. <br />~ <br />v. t{.av 3' F. Rs K " '.3Y sr1,. <br />~" to 'r , r~ ` <br />S/OD . <br />g~ ~ ~~, r ; <br />" <br />' <br />~ <br />~"~ <br />t <br />~ 9G3 Wdl <br /> rV <br />.}. ~i~ <br />~ r y <br />t <br />~ <br />4,r~t/s : •v"i-~.rkY: !'x* ~".~..r" { <br />5600 `)7}~..~rhi CfIX 7 /~+rY'1'G ""j`{ j~ 2 3'+.~a1 i t <br />r: <br />F' <br />,/ <br />+~ <br />r ~~''~ <br />Y <br />~ <br />i <br />~ <br />; ~'~ ~L <br />I~ <br /> x t~ <br />a... <br />`&~!`'~ <br />`~ <br />~ <br />Yy"} <br />t <br />~l <br />a <br />t <br />L <br />Vii. <br />4 y &~ <br />~ N f <br />/~/~ <br />SSW . <br /> fl~ <br />';..vim ~ ~1~~z ~Y~ f NFX ~" 1 itla'0~+ l~ '} ~. F'F't 4F.J' N ( ~ it/,t <br />' ( <br />5 + <br />~ <br />~ <br />~ <br />'u <br /> ~ <br />. <br />Yw,~¢h,S ti ° <br />F~, .'rol <br />Y { E~*Yh',. <br />mgt <br />r. <br />. <br />d :: P <br />~~ ~ <br />~ <br />,~ <br />9ti <br />'°~ ~'°` ~ h ~,~'`'' <br />°'^ °' <br />~~'~ °j° ~ ~ °p <br />~ <br />~ <br />PQ ` <br />~ <br />o <br />c <br />°~ cra ~ crag ~° <br />ps a° Oe ~° A0 ~° A° <br /> P <br />c <br /> <br /> Dame <br />8 <br /> <br />