RED RIVER OF THE NORTH BASIN 05100460 TONGUE RIVER AT OLGA, ND-Continued WATER-QUALITY RECORDS PERIOD OF RECORD.--April 2003 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) Specif. conduc- tance, wat unf uS/cm 25 degC (00095) Temper- ature, air, deg C (00020) Temper- ature, water, deg C (00010) Ammonia + org-N, water, unfltrd mg/L as N (00625) Ammonia water, unfltrd mg/L as N (00610) Nitrite + nitrate water unfltrd mg/L as N (00630) Organic nitro- gen, water, unfltrd mg/L (00605) Phos- phorus, water, unfltrd mg/L (00665) Total nitro- gen, water, unfltrd mg/L (00600) Suspnd. sedi- ment, sieve diametr percent <.063mm (70331) MAR 30... 1335 122 8.1 260 2.0 0.5 1.5 0.859 3.63 0.62 0.452 5.1 94 APR 05... 1435 19 7.6 540 14.0 6.5 1.4 0.476 3.77 0.91 0.542 5.2 99 20... 1100 62 7.9 553 10.0 7.0 2.2 0.502 6.30 1.7 0.490 8.5 100 MAY 06... 1030 17 7.5 887 7.0 9.5 2.9 0.567 5.28 2.3 0.724 8.2 100 25... 1345 3.0 8.2 1,260 9.5 8.5 1.8 <0.010 0.080 -- 0.201 2.6 46 JUN 02... 1310 30 7.9 1,100 15.5 16.0 1.1 0.036 4.06 1.1 0.193 5.2 91 WATER-QUALITY DATA, WATER YEAR OCTOBER 2003 TO SEPTEMBER 2004 Date Sus- pended sedi- ment concen- tration mg/L (80154) Sus- pended sedi- ment dis- charge, tons/d (80155) MAR 30... 37 12 APR 05... 30 1.5 20... 117 19 MAY 06... 301 14 25... 7 0.06 JUN 02... 14 1.1 Remark codes used in this table: < -- Less than
