RED RIVER OF THE NORTH BASIN 05059600 MAPLE RIVER NEAR HOPE, 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) 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) MAR 25... 1345 135 -- -- -- 223 10.0 0.5 -- -- -- -- -- 28... 1615 561 -- -- -- 373 3.0 3.5 -- -- -- -- -- APR 02... 1435 23 7.6 7.8 944 984 15.0 4.0 350 71.7 40.7 11.7 2 MAY 27... 1115 1.7 -- -- -- 2,830 11.5 12.5 -- -- -- -- -- JUN 22... 1220 2.6 -- -- -- 1,680 20.5 16.0 -- -- -- -- -- JUL 08... 1320 0.08 -- -- -- 1,940 -- 16.5 -- -- -- -- -- AUG 09... 1125 0.01 7.1 7.4 2,510 2,500 15.1 15.8 1,100 202 134 3.50 3 SEP 01... 1435 1.7 -- -- -- 1,850 24.0 19.0 -- -- -- -- -- 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) MAR 25... -- -- -- -- -- -- -- -- -- -- -- -- -- 28... -- -- -- -- -- -- -- -- -- -- -- -- -- APR 02... 73.9 31 154 26.9 0.18 21.8 299 618 39.8 2.5 70 <1 50 MAY 27... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 22... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 08... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 09... 234 32 468 53.7 0.34 36.0 967 1,880 0.03 3.8 70 1 200 SEP 01... -- -- -- -- -- -- -- -- -- -- -- -- -- 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) MAR 25... -- -- -- -- -- 28... -- -- -- -- -- APR 02... 40 <0.20 2 <1 260 MAY 27... -- -- -- -- -- JUN 22... -- -- -- -- -- JUL 08... -- -- -- -- -- AUG 09... 3,660 <0.20 2 3 820 SEP 01... -- -- -- -- -- Remark codes used in this table: < -- Less than
