RED RIVER OF THE NORTH BASIN 05099400 LITTLE SOUTH PEMBINA RIVER NEAR WALHALLA, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--April 2001 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... 1035 1.4 -- -- -- 807 15.0 13.0 -- -- -- -- -- JAN 12... 1355 0.42 -- -- -- 734 -5.0 0.0 -- -- -- -- -- APR 14... 1050 168 7.9 7.4 586 590 4.0 5.5 190 48.4 16.0 9.90 1 MAY 03... 1355 33 -- -- -- 896 -- 9.0 -- -- -- -- -- JUN 04... 0830 137 -- -- -- 841 -- 13.5 -- -- -- -- -- JUL 13... 1420 21 -- -- -- 909 -- 25.0 -- -- -- -- -- AUG 25... 0830 14 8.4 8.2 853 892 6.6 12.4 270 69.9 22.6 9.10 2 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... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 12... -- -- -- -- -- -- -- -- -- -- -- -- -- APR 14... 45.8 33 109 9.8 0.26 20.2 155 352 168 3.4 40 <1 30 MAY 03... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 04... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 13... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 25... 73.5 36 223 15.0 0.30 23.0 212 539 21.1 5.8 20 <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 08... -- -- -- -- -- JAN 12... -- -- -- -- -- APR 14... 30 <0.20 2 4 230 MAY 03... -- -- -- -- -- JUN 04... -- -- -- -- -- JUL 13... -- -- -- -- -- AUG 25... 20 <0.20 4 2 360 Remark codes used in this table: < -- Less than
