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COL,CJRADO DEPARTMENT OF HEALTH, Water Quality Control Division
<br />Rationale -Page 9, Permit No. CO-0043567
<br />Furthermore, this is not a new discharger (becmtse this permit reauthorizes discharges from areas previuacA
<br />covered under a COPS permit during active mining) and no new injormntion has been presented regnrdim; the
<br />classifications and standards. 77terejore, the water grtaliq~ standard-based ejJlttent limitations ojthis permit
<br />ore determined to 6e reasonably related to the economic, environmental, public health and energy intpncrs rn
<br />the public and affected persons and are in furtherance ajthe policies set forth in Sections IS-8-102 and 104.
<br />/j the permitter disagrees with this finding, pursuant to 6. /2.0(2)(6) the permitter should submit all pertittetrt .
<br />information to the Division during the public notice period.
<br />R. A4oniloring
<br />!. Effluent Monitoring: Effluent monitoring will 6e required as shown in Tables V!-S and VI-6. Refer to rlte
<br />permit jot locations of monitoring points.
<br />Table V/-5 -- Monitoring Requirements for Otrtlalls 001 002 and 003
<br />l'ru»rneter Afeasterement Frequency Smuple Type
<br />l~~lo,v, MGD Weekly Instantaneous
<br /> or Continuous
<br />/'ss, mg/P Monthly Grnb
<br />7~nnd Recoverable /rors, mg/P Weekly Grab
<br />Scnlrable Solids, mP/P Monthly Grnb
<br />Utl and Grease, mg/P Weekly Visual n/
<br />pH, s. u. Weekly Grab
<br />H'hule E/J]uent Tazicity, Chronic Quarterly 3 Contposites/Test
<br />Tn61e 1~/-6 -- A4onitoring Requirements (gr Outfalls 004 - 007
<br />!'nrmneter A4ensurement Frequency Sample Type
<br />l7nn•. ,t9GD Weekly lnsrnntnneous
<br /> or Continuous
<br />1~5.i, nib/P Mondtly Grnb
<br />;y,nd hrm, ni,q/P Manlth• Grab
<br />Srnlcoblc Solids, mP/P Monthly Grnb
<br />i h/ ,+nd Grerr.+e, mg/P Weekly Visual n/
<br />ulI .. u. LVeekly Grab
<br />, .. ~.. Cdr „~.n, n m,rJ. o drub rampb ,bull be ro@nrd mW mn(~:rJ fur od mul 8re a TRe .udu orr m br rrym¢d m, ,Fr GAIN u,vlrr In moon LiSN
<br />_. Arl ;9uanal A9animrur(•: 7T+c ,ran•r ur dre pit wren to 6e dischrrrgcd r)n'uuglr o:afel/s 001. 002 nnrr 00.7 r..
<br />prinu+rily runofjthm hn.r or mm' come in coruact N'ith „orking jnces, dad brcanirrg "mine drninnge" br
<br />de/initimr. Since uetire minis; ie no Iar.;er oc'c'rvring and reclamation i.5 rmdergouig, rhi.r ,voter a oat hl:rl•.
<br />to contain appreciable metals c'ancrrurnriuns, especially rher muing rn the ponr/s ,ruh surjnce runoff: On
<br />this nssurnption, this perrnir cantnins na limitations jar metn/s odter than irat. Hawerer, in artier ro canjir,u
<br />this, the permitter will 6e required m perjann note-time and/vsis of dte pit ,rater prior ra the beguuring of
<br />di.achnrge of mine drninnge jot n(/ mewls ojconcern. 7ltese mewls ore arsenic, cndnuuui, cluvunium, capper.
<br />lent/, nmrtgnnese, mercun~, nickel, seleniwn, silver and zinc. 77te jntctian to 6e nnnl): ed i.c parentinlh'
<br />rli., calved /or nl1 parameters ercrnt chrunuum, mm~gnnese, mercury and selenium, jot „~hrch mmhsis al the
<br />turn/ rec'uverable jractian u~tll be required. 17te pernuttee shall report the results invnrriiareh' upon rrcrglt.
<br />Thr- Divisirm mill nwkc n den•rrninNion nt [hot unie whelher arlrlirional hmiuuinn~ nrr needt'd.
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