RED RIVER OF THE NORTH BASIN

                                          05056220  SWEETWATER LAKE AT SWEETWATER, ND

LOCATION.--Lat 4812'39", long 9852'15", in NE1/4SW1/4SW1/4 sec.27, T.155 N., R.64 W., Ramsey County, Hydrologic Unit 09020201,
   at southwest arm of lake 6 mi north of Devils Lake.
   
DRAINAGE AREA.--670 mi2 of which about 290 mi2 is probably noncontributing.


                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water years 1960, 1962-87, 1993 to current year.


                                 WATER-QUALITY DATA, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000


                                    DEPTH    DEPTH     SPE-     PH                ANC
                                    TO TOP  TO BOT-   CIFIC    WATER    HARD-   UNFLTRD            MAGNE-
                                      OF    TOM OF     CON-    WHOLE    NESS    TIT 4.5  CALCIUM    SIUM,  SODIUM,
                                    SAMPLE   SAMPLE   DUCT-     LAB     TOTAL     LAB     DIS-      DIS-    DIS-
                                    INTER-   INTER-   ANCE    (STAND-   (MG/L    (MG/L    SOLVED   SOLVED  SOLVED
                  DATE      TIME   VAL(IN   VAL(IN     LAB      ARD      AS       AS      (MG/L    (MG/L    (MG/L
                                   METERS)  METERS)  (US/CM)   UNITS)   CACO3)   CACO3)   AS CA)   AS MG)   AS NA)
                                   (82047)  (82048)  (90095)  (00403)  (00900)  (90410)  (00915)  (00925)  (00930)

              OCT
                18...       1645     .00      .30     1020       --      350      211      64.0    45.0      100
              FEB
                15...       1610     .60     1.5      1650      8.2      580      352     110      73.0      160
              MAY
                08...       1635     .00     1.6      1110       --      510      245      74.0    79.0      100
              AUG
                01...       1520     .00     1.5      1120       --      320      164      40.0    53.0      120


                                                                                SOLIDS,  SOLIDS,            NITRO-
                                    SODIUM   POTAS-            CHLO-    FLUO-   SUM OF   RESIDUE  SOLIDS,    GEN,
                                      AD-     SIUM,  SULFATE   RIDE,    RIDE,   CONSTI-  AT 180     DIS-   NITRITE
                                    SORP-     DIS-    DIS-     DIS-      DIS-   TUENTS,   DEG. C   SOLVED    DIS-
                                     TION    SOLVED   SOLVED   SOLVED   SOLVED    DIS-     DIS-    (TONS    SOLVED
                  DATE     SODIUM   RATIO    (MG/L    (MG/L    (MG/L    (MG/L    SOLVED   SOLVED    PER     (MG/L
                          PERCENT            AS K)   AS SO4)   AS CL)   AS F)    (MG/L)   (MG/L)   AC-FT)   AS N)
                          (00932)  (00931)  (00935)  (00945)  (00940)  (00950)  (70301)  (70300)  (70303)  (00613)

              OCT
                18...       37        2      18.0      320     27.0      .1       702      721      .98      .016
              FEB
                15...       36        3      28.0      530     50.0      .4      1160     1230     1.67     <.010
              MAY
                08...       29        2      19.0      320     30.0      .2       771      798     1.09      .035
              AUG
                01...       43        3      22.0      350     40.0      .2       725      794     1.08     <.010


                           NITRO-   NITRO-   NITRO-            NITRO-                     PHOS-
                            GEN,     GEN,     GEN,    NITRO-  GEN,AM-                    PHORUS
                          NITRATE  NO2+NO3  AMMONIA    GEN,   MONIA +   NITRO-   PHOS-    ORTHO,  ARSENIC   IRON,
                            DIS-     DIS-     DIS-   ORGANIC  ORGANIC    GEN,   PHORUS    DIS-      DIS-     DIS-
                           SOLVED   SOLVED   SOLVED   TOTAL    TOTAL    TOTAL    TOTAL   SOLVED    SOLVED   SOLVED
                  DATE     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L   (MG/L     (UG/L    (UG/L
                           AS N)    AS N)    AS N)    AS N)    AS N)    AS N)    AS P)   AS P)     AS AS)   AS FE)
                          (00618)  (00631)  (00608)  (00605)  (00625)  (00600)  (00665)  (00671)  (01000)  (01046)
                                                            
              OCT
                18...       .065     .081    .109      2.5      2.6      2.7     .348     .106      7.0      100
              FEB
                15...        --     <.050    .022      3.5      3.5       --     .385     .023      3.0       20
              MAY
                08...       .103     .138    .437      2.4      2.8      2.9     .433     .086      3.0       40
              AUG
                01...        --     <.050    .093      2.0      2.1       --     .260     .255      6.0       40


                                                                                             CHLOR-A  CHLOR-B
                                                 MANGA-            MOLYB-   SELE-    STRON-   PHYTO-   PHYTO-
                               LEAD,   LITHIUM   NESE,   MERCURY   DENUM,   NIUM,     TIUM,   PLANK-   PLANK-
                                DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     DIS-     TON      TON
                               SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED   SOLVED  CHROMO   CHROMO
                      DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L   FLUOROM  FLUOROM
                               AS PB)   AS LI)   AS MN)   AS HG)   AS MO)   AS SE)   AS SR)   (UG/L)   (UG/L)
                              (01049)  (01130)  (01056)  (71890)  (01060)  (01145)  (01080)  (70953)  (70954)
                                                            
                  OCT
                    18...        1      60.0      40       <.1       1      <1.0      340       --       --
                  FEB
                    15...       <1      90.0      20       <.1       4      <1.0      460       --       --
                  MAY
                    08...       <1      60.0      20        .1       1      <1.0      300     12.2      1.0
                  AUG
                    01...        1      70.0      50       <.1       1      <1.0      340     52.3       .2


                                                                   SPE-     WATER
                                                DEPTH              CIFIC    WHOLE
                                                OF         SAM-    CON-     FIELD   TEMPER-  OXYGEN,
                                                LAKE      PLING    DUCT-   (STAND-   ATURE     DIS-
                               DATE      TIME   MAXIMUM   DEPTH    ANCE      ARD     WATER    SOLVED
                                                (FEET)     (M)    (US/CM)   UNITS)  (DEG C)   (MG/L)
                                                (82016)  (00098)  (00095)  (00400)  (00010)  (00300)

                           OCT
                             18...       1640     5.20     .00     1060      8.4      6.0      12.1
                             18...       1641      --      .50     1070      8.4      6.0      12.0
                             18...       1642      --     1.0      1070      8.4      6.0      11.9
                             18...       1643      --     1.5      1070      8.4      6.0      11.9
                             18...       1644      --     1.6      1070      8.4      6.0      11.8
                           FEB
                             15...       1605     4.90     .60     1730      8.0      2.0      23.5
                             15...       1606      --     1.0      1700      8.1      2.9     >25.0
                             15...       1607      --     1.5      1710      8.1      3.4      15.7
                           MAY
                             08...       1630     5.20     .00     1160      8.1     15.8       8.8
                             08...       1631      --      .50     1160      8.1     15.8       8.7
                             08...       1632      --     1.0      1160      8.1     15.8       8.6
                             08...       1633      --     1.6      1160      8.1     15.8       8.5
                           AUG
                             01...       1515     4.90     .00     1110      9.1     25.9      12.1
                             01...       1516      --      .70     1110      9.1     25.7      12.1
                             01...       1517      --     1.5      1120      9.1     25.2       8.6


                                       OXYGEN,   BARO-                               WIND
                                         DIS-    METRIC            TRANS-            DIREC-
                                        SOLVED   PRES-              PAR-              TION    WIND
                                        (PER-     SURE   ICE        ENCY   TEMPER-   (DEG.    SPEED
                                         CENT     (MM    THICK-   (SECCHI   ATURE     FROM   (MILES
                               DATE     SATUR-     OF    NESS      DISK)     AIR      TRUE     PER
                                        ATION)    HG)    METERS     (IN)   (DEG C)   NORTH)   HOUR)
                                       (00301)  (00025)  (82131)  (00077)  (00020)  (00036)  (00035)

                           OCT
                             18...       102      728       --      6.00     6.0      315      9.0
                             18...        --       --       --       --       --       --       --
                             18...        --       --       --       --       --       --       --
                             18...        --       --       --       --       --       --       --
                             18...        --       --       --       --       --       --       --
                           FEB
                             15...       179      730       .51     8.00    -8.0       15      7.0
                             15...        --       --       --       --       --       --       --
                             15...        --       --       --       --       --       --       --
                           MAY
                             08...        94      723       --      6.00    14.0      300     13
                             08...        --       --       --       --       --       --       --
                             08...        --       --       --       --       --       --       --
                             08...        --       --       --       --       --       --       --
                           AUG
                             01...       159      718       --     12.0     30.0      300     <5.0
                             01...        --       --       --       --       --       --       --
                             01...        --       --       --       --       --       --       --

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