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h?.q 1' -?0' 981WED) 0635 COMMERCIAL. <br />TEL~303 313 4791 p. 003 <br />C~~ COMMERCIALNTESTINGBA&IEDN6GINE765RIaNG~C08 <br />s~~cE +aae> <br />~` ~~ Momoer o(ihe 505 Gmup ISOdAtA OAnArula tle Survenlencel <br />1808-1998 90 Years Committed To ErcAllen~e ADDRESS ALL COPRE9PONDEHtE TO <br />a665 PANS STPEE' <br />SUITE B~20C <br />May 19, 1998 DENVEF. CC 6@3F <br />EL: IJO]I ]77-+~ ; 7 <br />MOUNTAIN COAL COMPANY <br />YJEST ELK h12NE ~?.MPLE iD NW SUMP DHN1 <br />P.O. BOX 591 FROM 11 NE <br />SOMERSET CO 91434 SAMPLE TINE: N/A <br />SA.M PLE DATE: 05/01/90 <br />Kind of Sample Water <br />Date Raceived May 6 . 1990 <br />Analyois report no. 72-381113 <br /> DETYCTION ANALYZED <br />PARAMETER RE3tILT5 IINIT9 METHOD LI ST DATE/TIME ANAL YSS <br />Alkalinity, as <br />CaC03 2165 mg/L SM2320-B 0.5 OS-07-1999/0945 KL <br />Ammonia 1.6 mg/L 5Mn500NH~-F 0.05 05-12-1998/0830 Dt: <br />Bicarbora[e ' <br />Alkalin i[y,as HC03 2640 mg/L SM2320-B 0.5 OS-07-1998/0945 KL <br />Carbonate, as <br />C03 <0.5 mg/L SM2320-B 0.5 OS-07-1998/0945 [:L <br />Conduc[ivity 8800 umho/cm SM2510-8 0.1 OS-07_1998/0900 K1 i <br />Fluoride, E 2.02 mg/L SM4500-F-C 0.02 05-13-1998/1200 EZ <br />Nitrite, Nitrogen ~ <br />N02-N <0.02 mg/L SM4500N03-F 0.02 0~5 -07-1998/1103 DN <br />Nitrate, Nitrogen <br />N03-N c0.02 mg/L SM9500N03-F 0.02 OS-07-1999/1103 DN <br />Sec[leable Solids 0.2 ml/L SM25a0-B 0.1 06-06-1998/1230 D`1 <br />Total L'LSaoived <br />Solid9, TDS 6966 mg/L SM2540-C 10 OS-08-1399/090C ~:L <br />Total Suspended <br />Solids, TSS 24 mg/L SM25a0-D 5 OS-O9-1998/0906 KI, <br />Sulfate, SOq 3252 mg/L SM4500SOy-C 1 OS-11-1998/1230 DA' <br />Sulfide, 52 <0.1 mg/L SM45005-E 0.1 05-14-1998/0715 ~.K <br />Total <br />Phosphorus, P <0.1 mg/L St445o0P-E 0.1 OS-11-1998/0930 K~ <br />pH 7.92 s.u. SM9500H-8 0.01 OS-07-1998/0830 Y-L <br />Hardness 290 mg/L SM2340-B 1 OS-OB-1998/1330 KL <br />Chloride, C1 97 mg/L SM4500-CL 1 OS-07-1999/1450 C'.: <br />Method Reference: ^Scandard Me[heds for the Examination of S4a[er and Wastewa[er," <br /> 19[h Edition, 1992; APHA-AWWA-WEF. <br />Peepecrlully Submined, <br />COMMERCIAL TESTING d ENGINEERING CO. <br /> MEMBER <br />S ,/7 <br />l~ J/ r1nT~ ~^~ <br />Oenuer laborotOry <br />OVER a0 DRANCN LABORATORIES 6TPATEOICALLY LOCATED IN PRINCIPAL COAL MINING PREA9. TIDEWATER AND GREAT LAKES PORTS, AND RIVER LDAOINO FACILITIES <br />