LITTLE MISSOURI RIVER BASIN 06337000 LITTLE MISSOURI RIVER NEAR WATFORD CITY, 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 07... 1455 19 -- -- -- -- 1,970 23.0 12.5 -- -- -- -- NOV 24... 1230 15 -- -- -- -- 3,240 -1.0 0.0 -- -- -- -- JAN 13... 1000 2.8 -- -- -- -- 3,640 -10.0 0.0 -- -- -- -- APR 12... 1530 141 -- -- -- -- 1,710 10.0 5.0 -- -- -- -- JUN 09... 1000 65 -- -- -- -- 2,210 13.5 14.5 -- -- -- -- JUL 29... 1340 23 707 8.4 8.7 1,900 1,830 18.0 18.3 260 56.3 30.0 11.9 SEP 01... 1430 33 -- 8.5 8.4 1,580 1,590 35.0 26.0 260 64.4 24.9 11.2 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) 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) OCT 07... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 24... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 13... -- -- -- -- -- -- -- -- -- -- -- -- -- APR 12... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 09... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 29... 9 335 72 327 9.5 0.56 10.3 667 1,310 81.8 0.64 0.58 <0.010 SEP 01... 7 261 67 281 8.1 0.39 10.1 536 1,080 96.7 -- -- -- WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Ammonia water, unfltrd mg/L as N (00610) 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) 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) OCT 07... -- -- -- -- -- -- -- -- -- -- -- -- -- NOV 24... -- -- -- -- -- -- -- -- -- -- -- -- -- JAN 13... -- -- -- -- -- -- -- -- -- -- -- -- -- APR 12... -- -- -- -- -- -- -- -- -- -- -- -- -- JUN 09... -- -- -- -- -- -- -- -- -- -- -- -- -- JUL 29... <0.010 <0.020 <0.020 <0.004 0.032 0.66 0.60 2.0 <1 80 <10 <0.20 10 SEP 01... -- -- -- -- -- -- -- 3.0 <1 50 <10 <0.20 8 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) OCT 07... -- -- NOV 24... -- -- JAN 13... -- -- APR 12... -- -- JUN 09... -- -- JUL 29... 3 690 SEP 01... 8 700 Remark codes used in this table: < -- Less than
