RED RIVER OF THE NORTH BASIN 05059700 MAPLE RIVER NEAR ENDERLIN, 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) OCT 08... 1540 2.7 -- -- -- 1,830 27.5 16.5 -- -- -- -- -- NOV 04... 1545 2.7 -- -- -- 1,860 -3.0 1.0 -- -- -- -- -- DEC 18... 1620 2.9 -- -- -- 1,960 -3.0 1.5 -- -- -- -- -- JAN 27... 1710 2.8 -- -- -- 1,930 -19.5 0.0 -- -- -- -- -- MAR 11... 1715 24 -- -- -- 963 -7.0 0.0 -- -- -- -- -- 23... 1545 255 -- -- -- 408 11.0 1.5 -- -- -- -- -- 31... 1820 1,350 7.6 7.2 925 920 9.0 7.5 360 79.8 38.6 16.2 1 MAY 06... 1350 18 -- -- -- 1,900 15.5 15.5 -- -- -- -- -- JUN 15... 1715 148 -- -- -- 1,510 -- 20.0 -- -- -- -- -- AUG 03... 1440 22 7.6 7.6 1,570 1,560 25.0 21.5 500 117 50.3 12.7 3 SEP 17... 1005 12 -- -- -- 2,520 18.5 15.0 -- -- -- -- -- 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) OCT 08... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 04... -- -- -- -- -- -- -- -- -- -- -- -- -- DEC 18... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 27... -- -- -- -- -- -- -- -- -- -- -- -- -- MAR 11... -- -- -- -- -- -- -- -- -- -- -- -- -- 23... -- -- -- -- -- -- -- -- -- -- -- -- -- 31... 55.6 24 130 35.3 0.16 23.9 281 587 2,220 5.8 80 <1 50 MAY 06... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 15... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 03... 147 38 299 92.3 0.45 27.5 425 1,030 61.7 7.4 <10 <1 90 SEP 17... -- -- -- -- -- -- -- -- -- -- -- -- -- 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 08... -- -- -- -- -- NOV 04... -- -- -- -- -- DEC 18... -- -- -- -- -- JAN 27... -- -- -- -- -- MAR 11... -- -- -- -- -- 23... -- -- -- -- -- 31... 110 <0.20 2 7 300 MAY 06... -- -- -- -- -- JUN 15... -- -- -- -- -- AUG 03... 410 <0.20 4 3 490 SEP 17... -- -- -- -- -- Remark codes used in this table: < -- Less than
