LITTLE MISSOURI RIVER BASIN 06335500 LITTLE MISSOURI RIVER AT MARMARTH, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1950-51, 1970 to current year. 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 08... 1345 9.4 -- -- -- 1,630 21.0 14.5 -- -- -- -- -- NOV 19... 1220 35 -- -- -- 1,730 14.5 0.0 -- -- -- -- -- JAN 08... 1540 2.6 -- -- -- 3,110 0.5 0.0 -- -- -- -- -- MAR 25... 1305 118 8.4 8.2 1,080 1,080 13.0 11.5 170 38.9 16.7 6.10 7 APR 13... 1220 33 -- -- -- 1,750 20.5 11.0 -- -- -- -- -- MAY 27... 1230 45 -- -- -- 1,520 22.0 16.5 -- -- -- -- -- JUL 13... 1245 243 -- -- -- 305 29.5 25.5 -- -- -- -- -- AUG 26... 0950 18 8.2 8.3 1,240 1,230 19.5 18.0 130 33.7 11.7 8.80 8 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 08... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 08... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 25... 199 71 251 5.9 0.27 8.80 306 725 233 1.7 230 <1 40 APR 13... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 27... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 13... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 26... 225 77 244 6.1 0.34 8.76 371 804 40.4 5.3 -- <1 50 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 08... -- -- -- -- -- NOV 19... -- -- -- -- -- JAN 08... -- -- -- -- -- MAR 25... 10 <0.20 5 1 340 APR 13... -- -- -- -- -- MAY 27... -- -- -- -- -- JUL 13... -- -- -- -- -- AUG 26... <10 <0.20 9 4 420 Remark codes used in this table: < -- Less than
