RED RIVER OF THE NORTH BASIN 05056410 CHANNEL A NEAR PENN, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water years 1984-99, 2001 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) APR 16... 1155 1,300 7.3 7.8 633 630 6.0 3.5 290 59.9 34.2 7.00 0.7 28... 1010 1,060 8.7 7.3 640 644 17.5 11.0 200 44.2 21.7 12.6 1 MAY 26... 1735 379 -- -- -- 839 12.5 12.0 -- -- -- -- -- AUG 23... 1415 -140 -- -- -- 1,100 16.0 16.0 -- -- -- -- -- 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) APR 16... 26.2 16 154 17.0 0.18 14.1 148 386 1,400 3.3 -- <1 30 28... 44.4 31 139 18.0 0.14 14.9 156 382 1,130 5.1 30 <1 30 MAY 26... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 23... -- -- -- -- -- -- -- -- -- -- -- -- -- 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) APR 16... 20 <0.20 2 3 220 28... 20 <0.20 2 1 160 MAY 26... -- -- -- -- -- AUG 23... -- -- -- -- -- Remark codes used in this table: < -- Less than
