KNIFE RIVER BASIN 06340500 KNIFE RIVER AT HAZEN, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1950, 1951, 1969 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) NOV 19... 1320 24 -- -- -- 2,320 10.0 0.0 -- -- -- -- -- JAN 09... 1350 16 -- -- -- 2,340 -10.0 0.0 -- -- -- -- -- FEB 25... 1115 19 -- -- -- 2,230 -3.0 0.5 -- -- -- -- -- MAR 22... 1140 791 7.6 7.1 673 660 5.0 1.0 150 29.4 17.4 9.30 3 APR 08... 1445 107 -- -- -- 1,340 10.0 5.0 -- -- -- -- -- MAY 19... 1230 39 -- -- -- 1,900 16.0 15.5 -- -- -- -- -- JUN 28... 1430 21 7.6 -- -- 1,940 25.0 20.6 -- -- -- -- -- AUG 25... 1500 18 8.4 8.5 1,700 1,720 25.0 19.0 300 52.5 41.0 8.40 7 SEP 23... 1530 16 8.5 8.4 1,740 1,770 12.5 13.0 330 57.8 45.1 8.50 7 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) Ammonia + org-N, water, fltrd, mg/L as N (00623) Ammonia + org-N, water, unfltrd mg/L as N (00625) Ammonia water, fltrd, mg/L as N (00608) Ammonia water, unfltrd mg/L as N (00610) NOV 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 09... -- -- -- -- -- -- -- -- -- -- -- -- -- FEB 25... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 22... 89.1 55 129 3.2 0.15 7.52 199 427 925 -- -- -- -- APR 08... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 28... -- -- -- -- -- -- -- -- -- 0.63 0.69 <0.010 <0.010 AUG 25... 281 66 466 7.5 0.39 7.55 455 1,130 54.8 0.49 0.54 <0.010 <0.010 SEP 23... 289 65 488 8.6 0.40 8.00 491 1,190 53.2 -- -- -- -- WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Nitrite + nitrate water fltrd, mg/L as N (00631) Nitrite + nitrate water unfltrd mg/L as N (00630) Phos- phorus, water, fltrd, mg/L (00666) Phos- phorus, water, unfltrd mg/L (00665) Total nitro- gen, water, fltrd, mg/L (00602) Total nitro- gen, water, unfltrd mg/L (00600) Arsenic water, fltrd, ug/L (01000) Iron, water, fltrd, ug/L (01046) Lead, water, fltrd, ug/L (01049) 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) NOV 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 09... -- -- -- -- -- -- -- -- -- -- -- -- -- FEB 25... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 22... -- -- -- -- -- -- <1.0 220 <1 10 60 <0.20 1 APR 08... -- -- -- -- -- -- -- -- -- -- -- -- -- MAY 19... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 28... <0.020 0.020 0.018 0.056 0.65 0.71 -- -- -- -- -- -- -- AUG 25... <0.020 <0.020 0.024 0.051 0.51 0.56 3.1 30 <1 60 30 <0.20 4 SEP 23... -- -- -- -- -- -- 2.7 30 <1 60 50 <0.20 4 WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Selen- ium, water, fltrd, ug/L (01145) Stront- ium, water, fltrd, ug/L (01080) NOV 19... -- -- JAN 09... -- -- FEB 25... -- -- MAR 22... <1 390 APR 08... -- -- MAY 19... -- -- JUN 28... -- -- AUG 25... <1 990 SEP 23... 5 1,070 Remark codes used in this table: < -- Less than
