LITTLE MISSOURI RIVER BASIN 06336600 BEAVER CREEK NEAR TROTTERS, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water year 1978 to current year. REMARKS.--Quality assurance sample also collected at this location. WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Time Instan- taneous dis- charge, cfs (00061) Baro- metric pres- sure, mm Hg (00025) 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) OCT 09... 1100 0.06 -- -- -- -- 2,050 20.0 10.0 -- -- -- -- FEB 24... 1140 2.8 -- -- -- -- 2,800 0.0 0.0 -- -- -- -- MAR 11... 1435 698 -- -- -- -- 424 1.0 1.0 -- -- -- -- 18... 1355 128 -- 7.9 7.4 889 905 7.0 4.5 250 46.0 32.0 10.6 APR 14... 1225 12 -- -- -- -- 2,060 10.5 8.5 -- -- -- -- JUN 08... 1430 2.5 -- -- -- -- 2,590 19.0 16.5 -- -- -- -- JUL 29... 1600 0.31 697 8.5 8.6 2,860 2,770 16.7 18.1 540 59.1 94.8 11.6 SEP 02... 1245 0.12 -- -- -- -- 3,070 26.0 20.0 -- -- -- -- WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Sodium adsorp- tion ratio (00931) 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) OCT 09... -- -- -- -- -- -- -- -- -- -- -- -- -- FEB 24... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 11... -- -- -- -- -- -- -- -- -- -- -- -- -- 18... 3 106 47 150 4.8 0.12 7.68 304 596 208 1.1 110 <1 APR 14... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 08... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 29... 9 487 66 431 11.7 0.30 <2.00 1,170 2,090 1.75 1.4 20 <1 SEP 02... -- -- -- -- -- -- -- -- -- -- -- -- -- WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Lithium water, fltrd, ug/L (01130) 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... -- -- -- -- -- -- FEB 24... -- -- -- -- -- -- MAR 11... -- -- -- -- -- -- 18... 20 90 <0.20 2 <1 490 APR 14... -- -- -- -- -- -- JUN 08... -- -- -- -- -- -- JUL 29... 80 <10 <0.20 4 <1 1,200 SEP 02... -- -- -- -- -- -- Remark codes used in this table: < -- Less than
