LITTLE MUDDY RIVER BASIN 06331000 LITTLE MUDDY RIVER BELOW COW CREEK NEAR WILLISTON, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water year 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) OCT 06... 1410 4.4 -- -- -- -- 2,120 10.0 5.0 -- -- -- -- NOV 17... 1505 9.1 -- -- -- -- 2,290 2.0 1.0 -- -- -- -- JAN 12... 1250 8.7 -- -- -- -- 2,460 -3.0 1.0 -- -- -- -- FEB 23... 1250 8.6 -- -- -- -- 2,410 0.0 0.5 -- -- -- -- MAR 24... 1310 44 -- -- -- -- 1,980 20.0 1.5 -- -- -- -- MAY 25... 1230 28 -- -- -- -- 2,180 12.0 11.0 -- -- -- -- JUL 29... 0825 7.6 710 8.1 8.5 2,290 2,230 8.0 17.5 460 57.0 76.2 10.2 SEP 14... 1530 6.7 -- 8.5 8.4 2,080 2,090 20.5 16.5 360 44.5 61.1 9.10 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) OCT 06... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 17... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 12... -- -- -- -- -- -- -- -- -- -- -- -- -- FEB 23... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 24... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 25... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 29... 8 379 64 532 10.2 0.33 6.48 752 1,610 33.2 5.8 40 <1 SEP 14... 8 343 66 576 9.0 0.40 5.63 604 1,420 25.5 5.5 40 <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) OCT 06... -- -- -- -- -- -- NOV 17... -- -- -- -- -- -- JAN 12... -- -- -- -- -- -- FEB 23... -- -- -- -- -- -- MAR 24... -- -- -- -- -- -- MAY 25... -- -- -- -- -- -- JUL 29... 90 10 <0.20 4 <1 800 SEP 14... 80 10 <0.20 4 6 670 Remark codes used in this table: < -- Less than
