RED RIVER OF THE NORTH BASIN 05058850 DITCH 10 ABOVE IRON SPRINGS CREEK NEAR McLEOD, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--April 2003 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) JUN 01... 1625 3.5 -- -- -- 477 14.0 13.0 -- -- -- -- -- 09... 1000 0.60 -- -- -- 812 -- 16.0 -- -- -- -- -- SEP 07... 1150 2.3 7.9 7.1 365 399 15.3 14.5 110 20.5 14.5 9.20 1 10... 0955 0.74 -- -- -- 792 16.5 19.0 -- -- -- -- -- 29... 1200 0.69 7.2 8.1 1,020 1,020 19.0 12.5 410 78.5 51.8 12.3 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) JUN 01... -- -- -- -- -- -- -- -- -- -- -- -- -- 09... -- -- -- -- -- -- -- -- -- -- -- -- -- SEP 07... 29.7 34 146 3.8 0.06 17.3 41.7 209 1.42 12.3 240 <1 30 10... -- -- -- -- -- -- -- -- -- -- -- -- -- 29... 70.4 26 507 9.7 0.23 32.4 80.4 610 1.19 14.1 50 <1 80 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) JUN 01... -- -- -- -- -- 09... -- -- -- -- -- SEP 07... <10 <0.20 3 4 140 10... -- -- -- -- -- 29... <10 <0.20 3 3 500 Remark codes used in this table: < -- Less than