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HYDRO20095
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HYDRO20095
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Entry Properties
Last modified
8/24/2016 8:41:30 PM
Creation date
11/20/2007 1:21:15 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Hydrology
Doc Date
7/10/2002
Doc Name
1st Quarter 2002 DMRs
From
Oxbow Mining LLC
To
CDOH - WQCD
Permit Index Doc Type
DMR’s
Media Type
D
Archive
No
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Discluir+~Pauit (tlb_\ <br />llata ti,r n I n:1 is limitcil to ane s:unplc obtained During a single, short dm:+uon <br />Jisch:+r;;e event. <br />pfi, -The pll value ol').I5 :gmpcars to he mm anomaly and is nut expected to be a <br />long term trend <br />TSS - l'he'1 SS value of i011 m±;`I resulted ti•om inflow Inxn a combination of <br />warm tempcrau+res during \larch lU and I I plus a warm rain on h+p of snow <br />cover. The result was a signilicaru snowntclt event which we belie~c was Iess <br />than or cyual lu a 10 yr:u- 'd hour precipiuuinn event. The attached tentpcraurrc <br />:md precgnt:uiun intimmmanon is submitted docmnc;nhng the pres:+tlin~; weather <br />ttumJ+lu+tts occurnng up to :umd trn: holing the 's'tarch 11. 2lllt_' sample date \o <br />Settleable Sohds (SS) analyxis m~a~ contplutcd un the laboratory s:+mple to <br />docunu•nt that rite appropriate Jti Ir+cl ui n5 mg,'I was achieved. Nevertheless. <br />OMl l'(' is hcrhy rcyuestin rc{icl'fi,nn the TSS limitation. <br />Iron - l he total iron limit of ±.I mg~l .dsn relleets a single one-time discharge <br />event occurring during the M11:uch I I. 'ort? ntnotTcvcnt. l3ccause the runulT <br />event was of short duration only a sumclc sample was oha+incd.:1s such. the iU <br />day average value of ?.0 mg:1 value ~c:ts csccedcd. while the daily tnavinuun <br />value o1 6.u nmg~l +s incompliance. Neverthcle•ss. OhILCC is hcrhy rcyucstine <br />relief from the imn limitation due tr thr irt(low event noted above. <br />Uil anti e;rruse - "fhe misplaced field n~conls noted apace contain the information <br />regarding a visual inspection fur the occw•rence of oil and grease. While we do <br />not h:+ce :+ Held record to support the conclusion there was no oil and grease <br />rcpnrtcd at the tune of the dischar~:,c. company personnel indicated there werr no <br />circ•unmstauce uccuning at the unit which would have caused ;m oil or ~rcase <br />problem. Further, there is no evidence in the vicinity of the pond nor pond <br />emb:tnknunts suggesting there was any oil and grease cont:unnmation of the pond <br />discharge <br />1 lluent Plow - f3exause of the missing Held notes there is no effluent flow <br />infonn:mon <br />If you hove any yucstions, please contact me at (')711) 9'9•~80G <br />k <br />}tunes r1. Kilter <br />I•nvtronmcntal Specialist <br />Xc: Pin irunnu•uCd Protection Agency <br />~Ir..lim fiuntell, t'ulurulo l)ivisum of ~tincrals and Gcxmlug\' <br />Kathv 1'1'elt lw.2, enclosures) <br />L. ~ <br />
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