RED RIVER OF THE NORTH BASIN 05056340 LITTLE COULEE NEAR LEEDS, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water year 1998 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) APR 15... 1515 104 7.5 7.5 939 950 9.0 6.5 280 44.6 41.3 17.6 2 JUN 30... 1100 49 -- -- -- 1,120 19.5 22.0 -- -- -- -- -- AUG 04... 1415 20 7.9 8.1 1,250 1,240 17.5 23.5 420 75.4 55.0 19.0 2 SEP 08... 1210 9.3 -- -- -- 1,320 18.5 14.5 -- -- -- -- -- 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) APR 15... 93.1 40 186 30.5 0.12 21.5 257 598 174 6.1 220 <1 70 JUN 30... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 04... 107 34 286 26.9 0.17 31.6 355 812 46.6 6.1 20 <1 90 SEP 08... -- -- -- -- -- -- -- -- -- -- -- -- -- 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) APR 15... 180 <0.20 <1 2 220 JUN 30... -- -- -- -- -- AUG 04... 110 <0.20 1 1 360 SEP 08... -- -- -- -- -- Remark codes used in this table: < -- Less than
