RED RIVER OF THE NORTH BASIN 05123400 WILLOW CREEK NEAR WILLOW CITY, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1960-62, 1964-65, 1972 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) APR 02... 1245 20 -- -- -- -- 290 8.0 0.0 -- -- -- -- 08... 1445 332 718 7.8 7.4 758 760 10.0 9.0 230 43.3 28.7 15.4 23... 1450 37 -- -- -- -- 1,290 11.5 11.5 -- -- -- -- MAY 28... 1815 93 -- -- -- -- 1,790 22.0 14.5 -- -- -- -- JUN 15... 1540 684 -- -- -- -- 890 20.0 18.0 -- -- -- -- 23... 1700 409 -- -- -- -- 965 16.0 18.0 -- -- -- -- JUL 22... 1010 39 -- -- -- -- 1,010 17.0 23.5 -- -- -- -- AUG 11... 0930 20 -- -- -- -- 1,420 13.0 20.5 -- -- -- -- SEP 15... 1745 13 -- 7.7 8.4 1,150 1,170 15.0 16.0 390 61.4 56.8 10.4 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) APR 02... -- -- -- -- -- -- -- -- -- -- -- -- -- 08... 2 82.9 42 143 19.5 0.12 23.4 211 489 457 3.2 140 <1 23... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 28... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 15... -- -- -- -- -- -- -- -- -- -- -- -- -- 23... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 22... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 11... -- -- -- -- -- -- -- -- -- -- -- -- -- SEP 15... 2 99.9 35 344 23.1 0.18 9.31 283 743 27.2 5.4 30 <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) APR 02... -- -- -- -- -- -- 08... 60 20 <0.20 2 <1 200 23... -- -- -- -- -- -- MAY 28... -- -- -- -- -- -- JUN 15... -- -- -- -- -- -- 23... -- -- -- -- -- -- JUL 22... -- -- -- -- -- -- AUG 11... -- -- -- -- -- -- SEP 15... 100 <10 <0.20 3 4 320 Remark codes used in this table: < -- Less than
