LITTLE MISSOURI RIVER BASIN 06336000 LITTLE MISSOURI RIVER AT MEDORA, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--March 2001 to present. WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Time Instan- taneous dis- charge, cfs (00061) pH, water, unfltrd field, std units (00400) pH, water, unfltrd lab, std units (00403) Specif. conduc- tance, wat unf lab, uS/cm 25 degC (90095) Specif. conduc- tance, wat unf uS/cm 25 degC (00095) Temper- ature, air, deg C (00020) Temper- ature, water, deg C (00010) Hard- ness, water, mg/L as CaCO3 (00900) Calcium water, fltrd, mg/L (00915) Magnes- ium, water, fltrd, mg/L (00925) Potas- sium, water, fltrd, mg/L (00935) Sodium adsorp- tion ratio (00931) OCT 09... 1350 12 -- -- -- 1,740 -- 13.5 -- -- -- -- -- NOV 18... 1535 33 -- -- -- 2,250 9.0 0.0 -- -- -- -- -- JAN 13... 1330 4.2 -- -- -- 1,630 -5.0 0.0 -- -- -- -- -- MAR 18... 1420 820 7.4 7.3 677 667 10.0 1.0 110 23.8 11.5 5.80 4 APR 15... 1610 54 -- -- -- 2,030 15.0 7.0 -- -- -- -- -- MAY 21... 1100 22 -- -- -- 2,710 14.0 15.5 -- -- -- -- -- JUL 06... 1650 58 -- -- -- 2,520 29.0 24.0 -- -- -- -- -- SEP 02... 1000 15 8.5 8.4 1,760 1,760 23.8 18.0 240 54.0 26.4 12.2 9 WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Sodium, water, fltrd, mg/L (00930) Sodium, percent (00932) ANC, wat unf fixed end pt, lab, mg/L as CaCO3 (90410) Chlor- ide, water, fltrd, mg/L (00940) Fluor- ide, water, fltrd, mg/L (00950) Silica, water, fltrd, mg/L (00955) Sulfate water, fltrd, mg/L (00945) Residue water, fltrd, sum of consti- tuents mg/L (70301) Residue water, fltrd, tons/d (70302) Arsenic water, fltrd, ug/L (01000) Iron, water, fltrd, ug/L (01046) Lead, water, fltrd, ug/L (01049) Lithium water, fltrd, ug/L (01130) OCT 09... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 18... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 13... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 18... 105 66 132 3.7 0.20 6.80 197 429 960 1.2 120 <1 20 APR 15... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 21... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 06... -- -- -- -- -- -- -- -- -- -- -- -- -- SEP 02... 309 72 281 9.0 0.39 6.66 629 1,210 49.9 3.0 <10 <1 60 WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Mangan- ese, water, fltrd, ug/L (01056) Mercury water, fltrd, ug/L (71890) Molyb- denum, water, fltrd, ug/L (01060) Selen- ium, water, fltrd, ug/L (01145) Stront- ium, water, fltrd, ug/L (01080) OCT 09... -- -- -- -- -- NOV 18... -- -- -- -- -- JAN 13... -- -- -- -- -- MAR 18... <10 <0.20 3 2 220 APR 15... -- -- -- -- -- MAY 21... -- -- -- -- -- JUL 06... -- -- -- -- -- SEP 02... <10 <0.20 9 10 690 Remark codes used in this table: < -- Less than
