Water Quality Data for the Arkansas River Basin 1990-93

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Table 13. Onsite measurements and selected inorganic data for station 09077500, Busk - Ivanhoe Tunnel at East Portal, near Malta DIS- PH SOLIDS, CHARGE, SPE- WATER HARD- MAGNE- RESIDUE NITRO- NITRO - INST. CIFIC WHOLE NESS CALCIUM SIUM, AT 180 GEN, GEN, CUBIC CON- FIELD TEMPER- OXYGEN, TOTAL DIS- DIS- DEC C NO2 +NO3 AMMONIA FEET DUCT- (STAND- ATURE DIS- (MG /L SOLVED SOLVED DIS - TOTAL TOTAL DATE TIME PER ANCE ARD WATER SOLVED AS (MG /L (MG /L SOLVED (MG /L (MG /L SECOND (US /CM) UNITS) (DEC C) (MG /L) CACO3) AS CA) AS MG) (MG /L) AS N) AS N) MAY 1990 22... 1040 6.8 32 6.6 2.0 8.6 27 0.107 0.070 JUN 04... 1745 48 6.6 1.0 8.6 14 0.074 0.090 JUN 1991 17... 1640 94 14 6.6 7.0 7.6 1 0.018 0.035 JUL 15... 1245 7.1 19 6.8 13.0 6.7 9 0.009 0.006 AUG 13... 0915 3.9 25 6.8 10.5 16 0.016 <0.002 MAY 1992 20... 1120 47 15 6.8 2.5 8.6 6 1.7 0.32 20 0.074 0.012 JUN 23... 1340 7.3 20 7.0 9.5 6.8 11 0.014 0.009 AUG 11... 1635 6.5 22 6.9 14.0 10 0.021 0.017 MANGA- CADMIUM COPPER, IRON, LEAD, NESE, MANGA- ZINC, TOTAL CADMIUM TOTAL COPPER, TOTAL IRON, TOTAL LEAD, TOTAL NESE, TOTAL ZINC, RECOV- DIS- RECOV- DIS- RECOV- DIS- RECOV- DIS- RECOV- DIS- RECOV- DIS - ERABLE SOLVED ERABLE SOLVED ERABLE SOLVED ERABLE SOLVED ERABLE SOLVED ERABLE SOLVED DATE (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L (UG /L AS CD) AS CD) AS CU) AS CU) AS FE) AS FE) AS PB) AS PB) AS MN) AS MN) AS ZN) AS ZN) MAY 1990 22... JUN 04... JUN 1991 17... <1 0.2 3 2 530 210 4 <0.5 20 18 <10 8 JUL 15... <1 <0.1 6 <1 180 110 5 <0.5 20 3 40 4 AUG 13... <1 0.2 2 <1 220 110 3 <0.5 10 5 <10 9 MAY 1992 20... <1 0.1 1 <1 190 110 <1 <0.5 10 6 <10 <3 JUN 23... <1 <0.1 1 1 150 75 <1 <0.5 <10 3 <10 <3 AUG 11... <1 <0.1 1 <1 500 100 2 <0.5 30 10 20 4 26 Water - Quality Data for the Arkansas River Basin, Southeastern Colorado, 1990 --93