RED RIVER OF THE NORTH BASIN

                                            05115500  LAKE DARLING NEAR FOXHOLM, ND                                 
                                 
LOCATION.--Lat 4827'27", long 10135'14", in NE1/4NE1/4 sec.1, T.157 N., R.85 W., Ward County, Hydrologic Unit  09010001, 
   on control structure of Lake Darling Dam, reservoir of Fish and Wildlife Service, on Souris River about 6 mi north of 
   Foxholm, and at mile 430.0.

DRAINAGE AREA.--9,450 mi2, approximately, of which about 6,200 mi2 is probably noncontributing.

                          MONTHEND-ELEVATION AND CONTENTS RECORDS

PERIOD OF RECORD.--April 1936 to current year (no winter records 1936-39).

REVISED RECORDS.--WSP 1338:  1942.  WSP 2113:  Drainage area.

GAGE.--Water-stage recorder.  Datum of gage is 1,577.00 ft above sea level.  April 1936 to Aug. 8, 1963,  nonrecording 
   gage at same site and datum.

REMARKS.--Reservoir is formed by earth dam; storage began in April 1936; dam completed in July 1936.  Usable capacity, 
   118,600 acre-ft between elevation of 1,577 ft, sill of control gages, and 1598 feet, legal full-capacity level. Flood-
   emergency maximum level is 1,601 ft (148,600 ac-ft). Dead storage below sill at control gages is 144 acre-ft.  Figures 
   given herein represent total contents based on capacity  table dated April 12, 1995 (provided by U.S. Fish and Wildlife 
   Service).  Water is used during periods of low flow at wildlife refuges downstream.  Elevations are adjusted for wind 
   effect.

EXTREMES FOR PERIOD OF RECORD.--Maximum contents, 145,400 acre-ft, Apr. 17, 1976, elevation, 1601.24 ft; minimum observed 
   since April 1943 when reservoir was first filled to spillway level, 31,200 acre-ft, Feb. 18 and 25, 1963, elevation, 
   1587.04 ft.

EXTREMES FOR CURRENT YEAR.--Maximum daily contents, 102,400 acre-ft, Aug. 5, elevation, 1596.32 ft; minimum daily contents,  
   92,520 acre-ft, Nov. 10, elevation, 1595.28 ft.



                 MONTHEND GAGE HEIGHT AND CONTENTS AT 2400, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000
___________________________________________________________________________________________________________________

                     Date                            Elevation             Contents           Change in contents
                                                      (feet)             (acre-feet)             (acre-feet)
___________________________________________________________________________________________________________________

Sept. 30 ---------------------------                  1596.20              101,200                   --
Oct. 31 ----------------------------                 *1595.40               93,650                 -7,550
Nov. 30 ----------------------------                  1595.34               93,090                   -560
Dec. 31 ----------------------------                  1595.41               93,750                   +660

    CAL YR 1999                                         --                    --                   -5,500

Jan. 31 ----------------------------                  1595.51               94,690                   +940
Feb. 29 ----------------------------                  1595.70               96,480                 +1,790
Mar. 31 ----------------------------                  1595.79               97,330                   +850
Apr. 30 ----------------------------                  1595.63               95,820                 -1,510
May 31 -----------------------------                  1595.59               95,440                   -380
June 30 ----------------------------                  1595.65               96,010                   +570
July 31 ----------------------------                  1596.17              100,900                 +4,890
Aug. 31 ----------------------------                  1595.92               98,560                 -2,340
Sept. 30 ---------------------------                  1595.77               97,140                 -1,420

    WTR YR 2000                                         --                    --                   -4,060
___________________________________________________________________________________________________________________


* - Estimated



                                                     WATER-QUALITY RECORDS

PERIOD OF RECORD.--Water year 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-             MAGNE-   SODIUM           UNFLTRD
                                 OF    TOM OF     CON-    WHOLE    NESS    CALCIUM    SIUM,     AD-   SODIUM,  TIT 4.5
                               SAMPLE   SAMPLE   DUCT-     LAB     TOTAL    DIS-      DIS-    SORP-    DIS-      LAB
                               INTER-   INTER-   ANCE    (STAND-   (MG/L    SOLVED   SOLVED    TION   SOLVED    (MG/L
             DATE      TIME   VAL(IN   VAL(IN     LAB      ARD      AS      (MG/L    (MG/L    RATIO    (MG/L     AS
                              METERS)  METERS)  (US/CM)   UNITS)   CACO3)   AS CA)   AS MG)            AS NA)   CACO3)
                              (82047)  (82048)  (90095)  (00403)  (00900)  (00915)  (00925)  (00931)  (00930)  (90410)

         OCT
           28...       0920     .00       --      823      8.3      240     48.7     28.5       2      84.4      233
           28...       0930    6.5        --      820      8.3      240     49.3     28.2       2      83.5      233
         NOV
           17...       1040    1.0        --      825      8.3      240     49.8     27.8       2      83.6      236
           17...       1045    6.0        --      828      8.3      240     50.4     28.2       2      83.9      236
         APR
           27...       1200    1.0        --      863      8.4      240     48.4     27.9       2      82.3      241
           27...       1205    5.7        --      862      8.4      240     48.9     28.5       2      85.2      240
           27...       1210     .00      2.6       --       --       --       --       --       --       --       --
         MAY
           22...       1310     .00       --      853       --      250     50.0     29.3       2      88.0      242
           22...       1320     .00      4.0       --       --       --       --       --       --       --       --
         JUN
           06...       1330     .00      5.4       --       --       --       --       --       --       --       --
           06...       1340    1.0        --      855      8.5      240     49.0     28.8       2      89.0      244
           06...       1350    7.4        --      856      8.3      240     48.9     28.6       2      88.5      247
           28...       1055    1.0        --      862      8.7      250     50.6     30.2       3      91.1      247
           28...       1100    6.8        --      823      8.5      250     51.0     29.9       2      90.4      247
           28...       1105     .00      3.0       --       --       --       --       --       --       --       --
         JUL
           20...       1530    1.0        --      847      8.7      240     48.6     28.7       2      85.0      247
           20...       1535    7.1        --      849      8.7      240     48.6     28.8       2      84.5      247
         AUG
           30...       1030    1.0        --      855      9.0      240     48.9     29.5       2      87.7      261
           30...       1035    6.7        --       --       --       --       --       --       --       --       --
           30...       1040     .00      2.8      854      9.0      250     48.9     30.9       2      87.6      259
         SEP
           25...       1240     .70      1.0      853      9.1      250     50.5     30.5       3      91.6      263
           25...       1250    7.2       7.5      857      9.1      250     50.5     30.5       2      89.9      262


                                                     NITRO-   NITRO-   NITRO-
                           CHLO-    FLUO-            GEN,AM-    GEN,     GEN,    NITRO-
                           RIDE,    RIDE,   SULFATE  MONIA +  AMMONIA  NO2+NO3    GEN,    PHOS-   CARBON,
                           DIS-      DIS-    DIS-    ORGANIC    DIS-     DIS-   ORGANIC  PHORUS   ORGANIC
                           SOLVED   SOLVED   SOLVED   TOTAL    SOLVED   SOLVED   TOTAL    TOTAL    TOTAL   PHENOLS
                  DATE     (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    (MG/L    TOTAL
                           AS CL)   AS F)   AS SO4)   AS N)    AS N)    AS N)    AS N)    AS P)    AS C)   (UG/L)
                          (00940)  (00950)  (00945)  (00625)  (00608)  (00631)  (00605)  (00665)  (00680)  (32730)

              OCT
                28...      22.1       .2      170      1.3     <.020    <.050      --      .182     15        5
                28...      21.8       .2      171       .99    <.020    <.050      --      .182     16        6
              NOV
                17...      23.3       .2      173       --       --       --       --       --      15       <4
                17...      22.3       .2      173       --       --       --       --       --      17       <4
              APR
                27...      24.3       .2      175      1.0     <.020    <.050      --      .098     11       E3
                27...      23.6       .2      175      1.0     <.020    <.050      --      .091     11        --
                27...        --       --       --       --       --       --       --       --       --       --
              MAY
                22...      23.3       .2      174       --       --       --       --       --      11       <4
                22...        --       --       --       --       --       --       --       --       --       --
              JUN
                06...        --       --       --       --       --       --       --       --       --       --
                06...      22.4       .2      173       .97     .021    <.050      .94     .111     11       <4
                06...      22.1       .2      173       .96    <.020    <.050      --      .132     13       <4
                28...      24.0       .2      174       --       --       --       --       --      12       <4
                28...      24.2       .2      173       --       --       --       --       --      12       <4
                28...        --       --       --       --       --       --       --       --       --       --
              JUL
                20...      23.0       .3      170       --       --       --       --       --      12       <4
                20...      22.8       .3      170       --       --       --       --       --      12       <4
              AUG
                30...      22.0       .2      171      1.1      .029    <.050     1.1      .486     14        4
                30...        --       --       --       --       --       --       --       --       --       --
                30...      22.2       .2      170      1.2     <.020    <.050      --      .482     13        8
              SEP
                25...      23.3       .2      167       --       --       --       --       --      14       <4
                25...      23.3       .2      166       --       --       --       --       --      15       <4


                          SOLIDS,  RESIDUE  CHLOR-A  CHLOR-B   ALUM-                      BERYL-
                          RESIDUE  TOTAL     PHYTO-   PHYTO-   INUM,            BARIUM,   LIUM,    BORON,  CADMIUM
                          AT 180   AT 105    PLANK-   PLANK-   TOTAL             TOTAL    TOTAL    TOTAL    WATER
                           DEG. C  DEG. C,    TON      TON     RECOV-  ARSENIC   RECOV-   RECOV-   RECOV-  UNFLTRD
                            DIS-    SUS-    CHROMO   CHROMO    ERABLE   TOTAL    ERABLE   ERABLE   ERABLE   TOTAL
                  DATE     SOLVED  PENDED   FLUOROM  FLUOROM   (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                           (MG/L)   (MG/L)   (UG/L)   (UG/L)   AS AL)   AS AS)   AS BA)   AS BE)   AS B)    AS CD)
                          (70300)  (00530)  (70953)  (70954)  (01105)  (01002)  (01007)  (01012)  (01022)  (01027)

              OCT
                28...       530        1       --       --       46       5      81.3      <5       274      <.1
                28...       544       15       --       --      178       5      86.1      <5       274      <.1
              NOV
                17...       533        6       --       --       --       --       --       --       --       --
                17...       541        5       --       --       --       --       --       --       --       --
              APR
                27...       556       --       --       --       --       --       --       --       --       --
                27...       557       --       --       --       --       --       --       --       --       --
                27...        --       --      3.2       .1       --       --       --       --       --       --
              MAY
                22...       565      <10       --       --       30       4      87.0      <5       233      <.1
                22...        --       --      2.4       .2       --       --       --       --       --       --
              JUN
                06...        --       --      1.0      <.1       --       --       --       --       --       --
                06...       568      <10       --       --       --       --       --       --       --       --
                06...       568      <10       --       --       --       --       --       --       --       --
                28...       565      <10       --       --       43       7      69.0      <5       245      <.1
                28...       563      <10       --       --       47       6      71.0      <5       256      <.1
                28...        --       --      3.3      <.1       --       --       --       --       --       --
              JUL
                20...       566      <10      1.1      <.1       --       --       --       --       --       --
                20...       565      <10       --       --       --       --       --       --       --       --
              AUG
                30...       574      <10       --       --       34      13      68.8      <5       277      <.1
                30...        --       --       --     E1.7       --       --       --       --       --       --
                30...       565      <10       --       --       39      12      69.1      <5       275      <.1
              SEP
                25...       562      <10       --       --       43      12      68.3      <5       260      <.1
                25...       556       16       --       --      181      13      73.8      <5       268      <.1


                           CHRO-                                                 MOLYB-
                           MIUM,   COBALT,  COPPER,   IRON,    LEAD,   MERCURY   DENUM,  NICKEL,            ZINC,
                           TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    TOTAL    SELE-    TOTAL
                           RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   RECOV-   NIUM,    RECOV-
                           ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   ERABLE   TOTAL    ERABLE
                  DATE     (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L    (UG/L
                           AS CR)   AS CO)   AS CU)   AS FE)   AS PB)   AS HG)   AS MO)   AS NI)   AS SE)   AS ZN)
                          (01034)  (01037)  (01042)  (01045)  (01051)  (71900)  (01062)  (01067)  (01147)  (01092)

              OCT
                28...       <1       <2        2       130      <1       <.3       5        2       <3       E24
                28...       <1       <2        2       420      <1       <.3       5        2       <3       <31
              NOV
                17...        --       --       --       --       --       --       --       --       --       --
                17...        --       --       --       --       --       --       --       --       --       --
              APR
                27...        --       --       --       --       --       --       --       --       --       --
                27...        --       --       --       --       --       --       --       --       --       --
                27...        --       --       --       --       --       --       --       --       --       --
              MAY
                22...       <1       <2        2        50      <1       <.3       4        4       <3       <31
                22...        --       --       --       --       --       --       --       --       --       --
              JUN
                06...        --       --       --       --       --       --       --       --       --       --
                06...        --       --       --       --       --       --       --       --       --       --
                06...        --       --       --       --       --       --       --       --       --       --
                28...       <1       <2        2        80      <1       <.3       5        3       <3       <31
                28...       <1       <2        2        80      <1       <.3       5        2       <3       <31
                28...        --       --       --       --       --       --       --       --       --       --
              JUL
                20...        --       --       --       --       --       --       --       --       --       --
                20...        --       --       --       --       --       --       --       --       --       --
              AUG
                30...       <1       <2        2        70      <1       <.3       5        2       <3       <31
                30...        --       --       --       --       --       --       --       --       --       --
                30...       <1       <2        1        90      <1       <.3       5        2       <3       <31
              SEP
                25...       <1       <2        1       100      <1       <.3       5       E1       <3       <31
                25...       E1       <2        2       480      E1       <.3       4        2       <3       <31


                                                                             PH
                                                                   SPE-     WATER
                                                                   CIFIC    WHOLE
                                                 RESER-    SAM-    CON-     FIELD   TEMPER-  OXYGEN,
                                                  VOIR    PLING    DUCT-   (STAND-   ATURE     DIS-
                               DATE      TIME    DEPTH    DEPTH    ANCE      ARD     WATER    SOLVED
                                                 (FEET)    (M)    (US/CM)   UNITS)  (DEG C)   (MG/L)
                                                (72025)  (00098)  (00095)  (00400)  (00010)  (00300)

                           OCT
                             28...       0915    21.3      .00      834      8.2      5.4     11.7
                             28...       0916      --     1.0       836      8.3      5.4     11.3
                             28...       0917      --     2.9       835      8.3      5.4     11.2
                             28...       0918      --     5.0       835      8.4      5.4     11.1
                             28...       0919      --     6.5       840      8.4      5.4     10.9
                           NOV
                             17...       1020    22.3      .00      850       --      4.6     13.3
                             17...       1022      --     1.0       851       --      4.6     13.0
                             17...       1024      --     2.0       850       --      4.5     12.8
                             17...       1026      --     3.0       850       --      4.5     12.7
                             17...       1028      --     4.0       850       --      4.5     12.6
                             17...       1030      --     5.0       850       --      4.5     12.5
                             17...       1032      --     6.0       852       --      4.5     12.5
                             17...       1034      --     6.8       850       --      4.5     12.4
                           APR
                             27...       1149    22.3      .00      795       --     10.7     12.2
                             27...       1150      --     1.0       798       --     10.6     11.7
                             27...       1151      --     2.0       797       --     10.6     11.6
                             27...       1152      --     3.0       798       --     10.6     11.5
                             27...       1153      --     4.0       798       --     10.6     11.4
                             27...       1154      --     5.0       799       --     10.5     11.3
                             27...       1155      --     6.0       799       --     10.4     11.3
                             27...       1156      --     6.8       801       --     10.4     11.2
                           MAY
                             22...       1300    23.6      .00      860      8.3     14.5     10.2
                             22...       1301      --     1.0       860      8.4     14.6     10.6
                             22...       1302      --     2.0       860      8.4     14.6     10.6
                             22...       1303      --     3.0       860      8.4     14.6     10.7
                             22...       1304      --     4.0       860      8.4     14.6     10.7
                             22...       1305      --     5.0       861      8.4     14.5     10.7
                             22...       1306      --     6.0       861      8.5     14.4     10.6
                             22...       1307      --     7.2       865      8.5     13.5     10.0
                           JUN
                             06...       1320    24.3      .00      861      8.0     17.0     10.3
                             06...       1321      --     1.0       863      8.1     16.6     10.2
                             06...       1322      --     2.0       862      8.2     16.5     10.2
                             06...       1323      --     3.0       865      8.2     16.1     10.0
                             06...       1324      --     4.0       863      8.3     15.9      9.7
                             06...       1325      --     5.0       865      8.3     15.6      9.4
                             06...       1326      --     6.0       866      8.3     15.1      8.9
                             06...       1327      --     7.0       867      8.3     15.0      7.8
                             06...       1328      --     7.4       867      8.3     15.0      7.8
                             28...       1045    22.3      .00      877      8.4     17.8      9.4
                             28...       1046      --     1.0       877      8.5     17.8      9.4
                             28...       1047      --     2.0       877      8.5     17.8      9.4
                             28...       1048      --     3.0       879      8.5     17.8      9.3
                             28...       1049      --     4.0       879      8.5     17.8      9.2
                             28...       1050      --     5.0       879      8.5     17.7      9.2
                             28...       1051      --     6.0       879      8.5     17.7      9.1
                             28...       1052      --     6.8       880      8.6     17.7      9.0
                           JUL
                             20...       1520    23.3      .00      860      8.1     21.6      8.9
                             20...       1521      --     1.5       866      8.3     21.2      8.6
                             20...       1522      --     3.0       869      8.3     20.8      8.4
                             20...       1523      --     4.5       869      8.3     20.5      8.5
                             20...       1524      --     6.0       869      8.4     20.4      8.4
                             20...       1525      --     7.1       869      8.4     20.3      8.2
                           AUG
                             30...       1020    22.0      .00      833      8.5     19.8      9.6
                             30...       1021      --     1.0       834      8.6     19.7      9.5
                             30...       1022      --     2.0       835      8.6     19.6      9.2
                             30...       1023      --     3.0       836      8.7     19.6      9.0
                             30...       1024      --     4.0       836      8.7     19.6      8.9
                             30...       1025      --     5.0       836      8.8     19.6      8.8
                             30...       1026      --     6.0       837      8.8     19.6      8.7
                             30...       1027      --     6.7       837      8.8     19.6      8.5
                           SEP
                             25...       1225    24.6      .00      875      9.0     10.8      9.7
                             25...       1226      --      .50      876      9.0     10.8      9.7
                             25...       1227      --     1.0       875      9.0     10.8      9.7
                             25...       1228      --     2.0       875      9.0     10.8      9.8
                             25...       1229      --     3.0       876      9.0     10.8      9.7
                             25...       1230      --     4.0       876      9.0     10.8      9.8
                             25...       1231      --     5.1       877      9.1     10.7      9.6
                             25...       1232      --     6.0       876      9.1     10.7      9.6
                             25...       1233      --     7.5       876      9.0     10.7      9.5


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

                                OCT
                                  28...        98      722      32.0    -2.0      190     <5.0
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                NOV
                                  17...       110      717      35.0     5.0      330     <5.0
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                  17...        --       --       --       --       --       --
                                APR
                                  27...       115      728      51.0    12.0      360      5.0
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                  27...        --       --       --       --       --       --
                                MAY
                                  22...       109      705      78.0    19.5      255      6.0
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                  22...        --       --       --       --       --       --
                                JUN
                                  06...       113      716     106      22.0       30     <5.0
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  06...        --       --       --       --       --       --
                                  28...       106      717     197      21.0      315     <5.0
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                  28...        --       --       --       --       --       --
                                JUL
                                  20...       107      720      91.0    21.0      335     <5.0
                                  20...        --       --       --       --       --       --
                                  20...        --       --       --       --       --       --
                                  20...        --       --       --       --       --       --
                                  20...        --       --       --       --       --       --
                                  20...        --       --       --       --       --       --
                                AUG
                                  30...       113      712      55.0    19.0      360     <5.0
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                  30...        --       --       --       --       --       --
                                SEP
                                  25...        --       --      43.0    18.5      240      8.0
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --
                                  25...        --       --       --       --       --       --

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