HEART RIVER BASIN 06348300 HEART RIVER AT STARK BRIDGE NEAR JUDSON, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water year 1988 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 06... 1220 17 -- -- -- 1,260 22.0 13.0 -- -- -- -- -- NOV 20... 1700 34 -- -- -- 1,540 -1.5 0.0 -- -- -- -- -- JAN 12... 1230 8.8 -- -- -- 2,100 -3.0 0.0 -- -- -- -- -- MAR 16... 1430 2,370 7.7 8.8 838 862 8.0 4.5 200 39.2 25.7 12.0 4 APR 22... 1130 118 -- -- -- 1,130 14.5 12.0 -- -- -- -- -- JUN 15... 1225 114 -- -- -- 1,050 18.0 19.5 -- -- -- -- -- JUL 26... 1455 56 -- -- -- 1,160 35.5 27.0 -- -- -- -- -- SEP 01... 1445 30 8.4 8.4 1,380 1,380 34.0 2.6 300 57.0 37.2 10.5 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) OCT 06... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 20... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 12... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 16... 118 54 171 8.2 0.22 4.97 251 558 3,600 1.4 150 <1 20 APR 22... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 15... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 26... -- -- -- -- -- -- -- -- -- -- -- -- -- SEP 01... 204 59 317 13.6 0.37 4.68 399 913 75.6 3.8 <10 <1 50 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 06... -- -- -- -- -- NOV 20... -- -- -- -- -- JAN 12... -- -- -- -- -- MAR 16... 10 <0.20 3 <1 450 APR 22... -- -- -- -- -- JUN 15... -- -- -- -- -- JUL 26... -- -- -- -- -- SEP 01... <10 <0.20 4 2 770 Remark codes used in this table: < -- Less than
