RED RIVER OF THE NORTH BASIN 05116500 DES LACS RIVER AT FOXHOLM, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1950-51, 1969-70, 1972 to current year. 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) DEC 19... 1545 0.60 -- -- -- -- 3,130 -- 0.0 -- -- -- -- JAN 13... 1530 0.45 -- -- -- -- 2,480 -- 0.0 -- -- -- -- FEB 25... 1715 0.31 -- -- -- -- 1,870 1.0 0.0 -- -- -- -- APR 01... 1215 9.2 -- -- -- -- 1,050 13.0 0.5 -- -- -- -- 08... 1005 58 718 8.0 7.9 1,080 1,100 2.5 1.5 380 80.3 42.9 9.40 MAY 20... 1625 11 -- -- -- -- 1,920 18.5 18.0 -- -- -- -- JUN 17... 1100 90 -- -- -- -- 1,740 13.5 17.0 -- -- -- -- JUL 14... 1655 20 -- -- -- -- 1,670 25.0 24.5 -- -- -- -- AUG 10... 1740 9.7 -- -- -- -- 1,740 25.0 27.5 -- -- -- -- SEP 15... 1015 26 -- 7.7 8.3 2,250 2,270 14.0 13.5 560 86.7 83.3 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) DEC 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 13... -- -- -- -- -- -- -- -- -- -- -- -- -- FEB 25... -- -- -- -- -- -- -- -- -- -- -- -- -- APR 01... -- -- -- -- -- -- -- -- -- -- -- -- -- 08... 3 120 40 177 12.1 0.20 15.2 381 754 121 <1.0 40 <1 MAY 20... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 17... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 14... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 10... -- -- -- -- -- -- -- -- -- -- -- -- -- SEP 15... 6 303 53 348 28.9 0.30 18.8 911 1,640 118 8.9 20 <1 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) DEC 19... -- -- -- -- -- -- JAN 13... -- -- -- -- -- -- FEB 25... -- -- -- -- -- -- APR 01... -- -- -- -- -- -- 08... 50 150 <0.20 2 <1 380 MAY 20... -- -- -- -- -- -- JUN 17... -- -- -- -- -- -- JUL 14... -- -- -- -- -- -- AUG 10... -- -- -- -- -- -- SEP 15... 100 30 <0.20 3 7 620 Remark codes used in this table: < -- Less than
