JAMES RIVER BASIN 06470878 JAMES RIVER AT NORTH DAKOTA-SOUTH DAKOTA STATE LINE-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--Water year 2002 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 24... 1305 142 9.3 8.8 763 725 20.1 3.5 290 65.0 30.3 17.5 2 JUL 12... 1500 593 -- -- -- 990 26.5 -- -- -- -- -- -- AUG 19... 1650 160 7.6 8.5 1,100 1,090 26.5 21.0 360 66.1 47.4 16.8 2 SEP 07... 1530 225 7.8 8.6 1,110 1,100 18.5 18.5 420 82.2 52.2 16.7 2 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) MAR 24... 61.6 30 224 30.7 0.18 5.46 153 494 191 -- -- -- -- JUL 12... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 19... 86.0 33 277 25.2 0.21 4.16 298 707 307 1.0 0.92 <0.010 <0.010 SEP 07... 90.2 31 308 23.5 0.19 2.50 287 738 449 -- -- -- -- 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) MAR 24... -- -- -- -- -- -- 3.4 30 <1 40 270 <0.20 1 JUL 12... -- -- -- -- -- -- -- -- -- -- -- -- -- AUG 19... <0.020 <0.020 0.190 0.324 1.0 0.94 7.2 30 <1 70 320 <0.20 3 SEP 07... -- -- -- -- -- -- 5.0 <10 <1 70 90 <0.20 3 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) MAR 24... 2 280 JUL 12... -- -- AUG 19... 1 370 SEP 07... 7 400 Remark codes used in this table: < -- Less than
