11180960 CULL CREEK ABOVE CULL CREEK RESERVOIR, NEAR CASTRO VALLEY, CA
LOCATION.-Lat 37°42'55", long 122°03'12", in San Lorenzo (Castro) Grant, Alameda County, Hydrologic Unit 18050004, on left bank 0.9 mi upstream from
Cull Creek Dam and 1.1 mi northeast of Castro Valley Post Office.
DRAINAGE AREA.-5.79 mi2.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.-October 1978 to current year.
REVISED RECORDS.-WDR CA-80-2: 1979(P).
GAGE.-Water-stage recorder and crest-stage gage. Elevation of gage is 450 ft above sea level, from topographic map.
REMARKS.-Records fair except for estimated daily discharges, which are poor. No storage or diversions upstream from station.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 1,690 ft3/s, Jan. 5, 1982, gage height, 8.71 ft; no flow for many days each year.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 150 ft3/s, or maximum:
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
Jan. 12 1400 404 3.87 Feb. 7 1500 227 2.96
Jan. 15 1315 329 3.48 Feb. 14 1300 311 3.42
Jan. 18 1500 726 5.26 Feb. 21 1300 286 3.29
Feb. 3 0030 1,560 8.21
DISCHARGE, CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY MEAN VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 .00 .00 .14 .56 21 16 8.7 3.6 1.8 e.84 .25 .07
2 .00 .00 .10 1.8 181 15 7.8 3.3 1.7 e.81 .21 .07
3 .00 .00 .08 1.6 369 13 18 3.1 1.7 e.80 .19 .07
4 .00 .00 .08 17 68 12 28 3.1 1.7 e.77 .18 .07
5 .00 .00 .09 2.0 37 13 15 3.4 1.6 e.71 .17 .07
6 .00 .00 .08 1.1 91 13 9.7 3.2 1.5 e.70 .16 .07
7 .00 .00 12 1.0 89 11 8.5 3.0 1.7 e.68 .17 .07
8 .00 .00 4.0 .79 77 10 7.2 2.9 1.6 e.66 .18 .07
9 .03 .00 1.5 .91 32 8.7 6.8 2.7 1.5 e.64 .17 e.06
10 .01 .03 .93 7.1 25 8.4 6.0 2.5 1.5 e.60 .16 e.06
11 .00 .03 .72 34 35 8.2 5.5 2.7 1.5 e.57 .14 .05
12 .00 .01 .63 140 40 8.0 5.0 3.8 1.4 e.55 .13 .05
13 .00 .03 .60 25 33 30 25 3.5 1.3 e.52 .12 .04
14 .00 .03 2.6 18 85 10 12 2.4 1.2 e.50 .11 .04
15 .00 .10 1.4 124 38 8.4 9.2 2.3 1.2 e.47 .12 .04
16 .00 .05 1.1 37 44 7.9 8.3 2.2 1.1 e.45 .12 .07
17 .00 .04 .97 11 31 7.5 7.4 2.1 .99 e.44 .12 .04
18 .00 .04 .90 162 23 7.0 6.5 2.0 .97 e.43 .14 .04
19 .00 .07 .76 78 51 6.8 6.0 1.9 .97 e.41 .14 .03
20 .00 .04 .76 22 21 6.5 5.7 1.9 .96 e.40 .12 .04
21 .00 .04 .74 12 69 6.3 5.5 1.8 .94 e.39 .12 .03
22 .00 .04 .66 9.2 30 6.0 5.2 1.8 .93 e.37 .11 .04
23 .00 .04 .68 8.4 45 27 4.9 1.8 .98 e.35 .10 .03
24 .00 .08 .69 7.2 30 27 4.9 1.8 1.1 .32 .10 .03
25 .00 .09 .66 6.1 26 20 4.6 1.7 e1.2 .31 .09 .03
26 .00 2.8 .62 5.9 22 14 4.1 1.7 e1.2 .30 .10 .04
27 .00 .38 .65 6.3 19 12 4.1 2.4 e1.1 .27 .09 .05
28 .00 .09 .67 4.9 17 10 4.0 7.0 e1.0 .26 .08 .05
29 .00 .06 .68 37 --- 9.1 3.8 3.1 e.96 .27 .08 .04
30 .00 .68 .63 12 --- 8.2 3.8 2.2 e.90 .29 .08 .04
31 .00 --- .55 11 --- 11 --- 1.8 --- .28 .08 ---
TOTAL 0.04 4.77 36.67 804.86 1649 371.0 251.2 82.7 38.20 15.36 4.13 1.50
MEAN .001 .16 1.18 26.0 58.9 12.0 8.37 2.67 1.27 .50 .13 .050
MAX .03 2.8 12 162 369 30 28 7.0 1.8 .84 .25 .07
MIN .00 .00 .08 .56 17 6.0 3.8 1.7 .90 .26 .08 .03
AC-FT .08 9.5 73 1600 3270 736 498 164 76 30 8.2 3.0
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1979 - 1998, BY WATER YEAR (WY)
OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
MEAN .043 .81 2.84 10.7 13.5 9.25 3.03 .87 .29 .081 .017 .007
MAX .45 6.00 14.0 43.7 58.9 54.3 16.8 3.56 1.27 .50 .13 .079
(WY) 1983 1984 1984 1997 1998 1983 1982 1983 1998 1998 1998 1983
MIN .000 .000 .001 .000 .045 .13 .055 .016 .007 .000 .000 .000
(WY) 1979 1987 1990 1991 1991 1988 1990 1988 1988 1981 1979 1979
SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1979 - 1998
ANNUAL TOTAL 1613.86 3259.43
ANNUAL MEAN 4.42 8.93 3.40
HIGHEST ANNUAL MEAN 10.3 1983
LOWEST ANNUAL MEAN .054 1990
HIGHEST DAILY MEAN 270 Jan 2 369 Feb 3 445 Feb 15 1982
LOWEST DAILY MEAN .00 Aug 6 .00 Oct 1 .00 Oct 1 1978
ANNUAL SEVEN-DAY MINIMUM .00 Aug 6 .00 Oct 1 .00 Oct 1 1978
INSTANTANEOUS PEAK FLOW 1560 Feb 3 1690 Jan 5 1982
INSTANTANEOUS PEAK STAGE 8.21 Feb 3 8.71 Jan 5 1982
ANNUAL RUNOFF (AC-FT) 3200 6470 2460
10 PERCENT EXCEEDS 6.5 22 6.3
50 PERCENT EXCEEDS .21 .96 .11
90 PERCENT EXCEEDS .00 .00 .00
11180960 CULL CREEK ABOVE CULL CREEK RESERVOIR, NEAR CASTRO VALLEY, CA-Continued
WATER-QUALITY RECORDS
PERIOD OF RECORD.-Water years 1979 to current year (storm season only).
WATER TEMPERATURE: Water years 1979 to current year.
SEDIMENT DATA: Water years 1979 to current year.
PERIOD OF DAILY RECORD.-
WATER TEMPERATURE: October 1978 to current year.
SUSPENDED-SEDIMENT DISCHARGE: October 1978 to current year.
REMARKS.-Zero bedload discharge observed at flows less than 3.30 ft3/s. Sediment samples were collected on most days where a water temperature is
published.
EXTREMES FOR PERIOD OF DAILY RECORD.-
SEDIMENT CONCENTRATION: Maximum daily mean, 24,400 mg/L, Mar. 13, 1993; minimum daily mean, no flow many days during most years.
SEDIMENT LOAD: Maximum daily, 26,400 tons, Feb. 17, 1986; minimum daily, 0 ton many days during most years.
EXTREMES FOR CURRENT YEAR.-
SEDIMENT CONCENTRATION (storm season only): Maximum daily mean, 8,920 mg/L, Jan. 12; minimum daily mean, no flow on many days.
SEDIMENT LOAD (storm season only): Maximum daily, 14,300 tons, Feb. 3; minimum daily, 0 ton on many days.
PARTICLE-SIZE DISTRIBUTION OF SUSPENDED SEDIMENT, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DIS- SEDI- SED. SED. SED.
CHARGE, MENT, SUSP. SUSP. SUSP.
INST. SEDI- DIS- FALL FALL FALL
CUBIC TEMPER- MENT, CHARGE, DIAM. DIAM. DIAM.
FEET ATURE SUS- SUS- % FINER % FINER % FINER
DATE TIME PER WATER PENDED PENDED THAN THAN THAN
SECOND (DEG C) (MG/L) (T/DAY) .002 MM .004 MM .008 M
(00061) (00010) (80154) (80155) (70337) (70338) (70339)
NOV
26... 2025 .72 11.0 526 1.0 -- -- --
DEC
07... 1455 26 11.5 5940 417 46 55 67
JAN
12... 1700 130 11.0 7760 2720 22 26 34
18... 1420 586 11.5 31300 49500 28 30 35
28... 0910 5.9 10.5 137 2.2 -- -- --
FEB
02... 1405 162 11.0 13700 5990 18 23 26
05... 1130 49 11.0 2800 370 31 37 43
06... 1735 109 10.5 10100 2970 22 28 32
MAR
24... 1425 20 14.5 535 29 -- -- --
25... 1055 17 12.0 594 27 -- -- --
SED. SED. SED. SED. SED. SED. SED. SED.
SUSP. SUSP. SUSP. SUSP. SUSP. SUSP. SUSP. SUSP.
FALL FALL SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE
DIAM. DIAM. DIAM. DIAM. DIAM. DIAM. DIAM. DIAM.
% FINER % FINER % FINER % FINER % FINER % FINER % FINER % FINER
DATE THAN THAN THAN THAN THAN THAN THAN THAN
.016 MM .031 MM .062 MM .125 MM .250 MM .500 MM 1.00 MM 2.00 MM
(70340) (70341) (70331) (70332) (70333) (70334) (70335) (70336)
NOV
26... -- -- 98 99 100 -- -- --
DEC
07... 81 88 93 95 98 99 100 --
JAN
12... 44 55 67 78 94 99 100 --
18... 47 57 69 74 88 98 99 100
28... -- -- 57 79 95 100 -- --
FEB
02... 34 43 54 64 90 98 99 100
05... 57 68 78 87 97 99 100 --
06... 42 54 67 76 94 99 99 100
MAR
24... -- -- 91 95 98 100 -- --
25... -- -- 93 97 99 100 -- --
PARTICLE-SIZE DISTRIBUTION OF SURFACE BED MATERIAL, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DIS- BED BED BED BED
NUMBER CHARGE, MAT. MAT. MAT. MAT.
OF INST. SIEVE SIEVE SIEVE SIEVE
TEMPER- SAM- CUBIC DIAM. DIAM. DIAM. DIAM.
ATURE PLING FEET % FINER % FINER % FINER % FINER
DATE TIME WATER POINTS PER THAN THAN THAN THAN
(DEG C) (COUNT) SECOND .062 MM .125 MM .250 MM .500 MM
(00010) (00063) (00061) (80164) (80165) (80166) (80167)
MAY
01... 1450 14.0 1 3.4 16 31 51 68
01... 1453 14.0 1 3.4 2 8 27 49
01... 1455 14.0 1 3.4 6 18 47 65
01... 1500 14.0 1 3.4 -- 1 4 13
01... 1505 14.0 1 3.4 -- 2 7 15
01... 1510 14.0 1 3.4 4 13 35 61
01... 1515 14.0 1 3.4 16 43 76 87
BED BED BED BED BED BED BED
MAT. MAT. MAT. MAT. MAT. MAT. MAT.
SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE
DIAM. DIAM. DIAM. DIAM. DIAM. DIAM. DIAM.
% FINER % FINER % FINER % FINER % FINER % FINER % FINER
DATE THAN THAN THAN THAN THAN THAN THAN
1.00 MM 2.00 MM 4.00 MM 8.00 MM 16.0 MM 32.0 MM 64.0 MM
(80168) (80169) (80170) (80171) (80172) (80173) (80174)
MAY
01... 88 99 100 -- -- -- --
01... 65 76 87 94 100 -- --
01... 71 81 92 98 100 -- --
01... 24 39 58 73 87 100 --
01... 20 27 38 46 55 68 100
01... 78 89 97 100 -- -- --
01... 92 98 100 -- -- -- --
PARTICLE-SIZE DISTRIBUTION OF BEDLOAD, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
TIME HORI-
BAG TETHER ON BED ZONTAL
MESH LINE START- END- FOR WIDTH
SAM- SIZE USED IN ING ING BED OF
PLING SAMPLER BEDLOAD SAMPLNG TIME TIME LOAD VER-
DATE TIME METHOD, TYPE SAMPLER (YES=1) (2400 (2400 SAMPLE TICAL
CODES (CODE) (MM) (CODE) HOURS) HOURS (SEC) (FEET)
(82398) (84164) (30333) (04117) (82073) (82074) (04120) (04121)
FEB
05... 1155 1000 1120 .250 0 1150 1200 15 .5
05... 1210 1000 1120 .250 0 1205 1215 15 .5
MAR
25... 1120 1000 1120 .250 0 1110 1125 15 .5
25... 1135 1000 1120 .250 0 1130 1140 15 .5
COMPSTD VER- SAMPLE DIS- DISCH, SEDI-
SAMPLES TICALS NUMBER LOC- CHARGE, BEDLOAD MENT
IN IN OF ATION, INST. AV UNIT DIS-
X-SEC COM- SAM- CROSS CUBIC TEMPER- FOR COM CHARGE,
BEDLOAD POSITE PLING SECTION FEET ATURE POSITE BEDLOAD
DATE MEASMNT SAMPLE POINTS (FT FM PER WATER SAMPLE (TONS/
(NUM) (NUM) (COUNT) L BANK) SECOND (DEG C) T/D/FT DAY)
(04118) (04119) (00063) (00009) (00061) (00010) (04122) (80225)
FEB
05... 2 25 25 .60 50 11.0 2.41 24
05... 2 25 25 .60 45 11.0 1.35 24
MAR
25... 2 25 25 .40 17 12.0 .55 6.1
25... 2 25 25 .40 16 12.0 .41 6.1
SED. SED. SED. SED. SED. SED. SED. SED.
BEDLOAD BEDLOAD BEDLOAD BEDLOAD BEDLOAD BEDLOAD BEDLOAD BEDLOAD
SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE SIEVE
DIAM. DIAM. DIAM. DIAM. DIAM. DIAM. DIAM. DIAM.
% FINER % FINER % FINER % FINER % FINER % FINER % FINER % FINER
DATE THAN THAN THAN THAN THAN THAN THAN THAN
.125 MM .250 MM .500 MM 1.00 MM 2.00 MM 4.00 MM 8.00 MM 16.0 MM
(80227) (80228) (80229) (80230) (80231) (80232) (80233) (80234)
FEB
05... -- 4 16 34 62 87 96 100
05... 1 10 28 42 62 83 94 100
MAR
25... -- 2 23 49 74 92 99 100
25... -- 4 27 56 80 94 99 100
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAILY INSTANTANEOUS VALUES
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 --- --- --- --- --- --- --- 14 --- --- --- ---
2 --- --- --- 9.5 11 --- --- --- --- --- --- ---
3 --- --- 9.5 --- --- --- --- --- --- --- --- ---
4 --- --- --- --- --- --- --- --- --- --- --- ---
5 --- --- --- --- 11 --- --- --- --- --- --- ---
6 --- --- --- 6.0 10.5 --- 11.5 --- --- --- --- ---
7 --- --- 10.5 --- --- --- --- --- --- --- --- ---
8 --- --- --- 8.0 10.5 --- --- --- --- --- --- ---
9 --- --- --- --- --- --- --- --- --- --- --- ---
10 --- --- 6.0 --- --- --- --- --- --- --- --- 17
11 --- --- --- --- 12 --- --- --- --- --- --- ---
12 --- --- --- 11 --- --- --- --- --- --- --- ---
13 --- --- --- 10 12.5 12 --- --- --- --- --- ---
14 --- --- --- 10.5 --- --- --- --- --- --- --- ---
15 --- --- 7.5 12.5 --- --- 11.5 --- --- --- --- ---
16 --- --- --- --- --- --- --- --- --- --- --- ---
17 --- --- 9.5 12.5 --- --- --- --- --- --- --- ---
18 --- --- --- 11.5 --- --- --- --- --- --- --- ---
19 --- --- --- --- --- --- --- --- --- --- --- ---
20 --- --- --- 9.5 --- --- --- --- --- --- --- ---
21 --- --- --- --- --- 14 --- --- --- --- --- ---
22 --- --- --- --- --- --- --- --- --- --- --- ---
23 --- --- --- 10.5 --- --- 14 --- --- --- --- ---
24 --- --- --- --- --- 14.5 --- --- --- --- --- ---
25 --- --- --- --- --- 12 --- --- 14 --- --- ---
26 --- 11 --- --- --- --- --- --- --- --- --- ---
27 --- 11 --- --- --- --- --- --- --- --- --- ---
28 --- --- 5.5 10.5 --- --- --- --- --- --- --- ---
29 --- 10.5 --- 10 --- 9.0 --- --- --- --- --- ---
30 --- --- 8.0 --- --- --- 14 --- --- --- --- ---
31 --- --- --- 11.5 --- --- --- --- --- --- --- ---
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
MEAN MEAN MEAN
MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT
DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE
DAY (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY)
OCTOBER NOVEMBER DECEMBER
1 .00 0 .00 .00 0 .00 .14 70 .03
2 .00 0 .00 .00 0 .00 .10 44 .01
3 .00 0 .00 .00 0 .00 .08 36 .01
4 .00 0 .00 .00 0 .00 .08 37 .01
5 .00 0 .00 .00 0 .00 .09 41 .01
6 .00 0 .00 .00 0 .00 .08 45 .01
7 .00 0 .00 .00 0 .00 12 1900 147
8 .00 0 .00 .00 0 .00 4.0 387 4.7
9 .03 0 .00 .00 0 .00 1.5 107 .45
10 .01 0 .00 .03 6 .00 .93 34 .09
11 .00 0 .00 .03 1 .00 .72 27 .05
12 .00 0 .00 .01 0 .00 .63 25 .04
13 .00 0 .00 .03 0 .00 .60 23 .04
14 .00 0 .00 .03 0 .00 2.6 293 2.5
15 .00 0 .00 .10 0 .00 1.4 254 1.0
16 .00 0 .00 .05 0 .00 1.1 121 .35
17 .00 0 .00 .04 0 .00 .97 58 .15
18 .00 0 .00 .04 0 .00 .90 45 .11
19 .00 0 .00 .07 0 .00 .76 44 .09
20 .00 0 .00 .04 0 .00 .76 42 .09
21 .00 0 .00 .04 0 .00 .74 41 .08
22 .00 0 .00 .04 0 .00 .66 40 .07
23 .00 0 .00 .04 0 .00 .68 39 .07
24 .00 0 .00 .08 4 .00 .69 37 .07
25 .00 0 .00 .09 1 .00 .66 36 .06
26 .00 0 .00 2.8 924 9.1 .62 35 .06
27 .00 0 .00 .38 119 .16 .65 34 .06
28 .00 0 .00 .09 34 .01 .67 33 .06
29 .00 0 .00 .06 23 .00 .68 35 .07
30 .00 0 .00 .68 243 .57 .63 38 .06
31 .00 0 .00 --- --- --- .55 41 .06
TOTAL 0.04 --- 0.00 4.77 --- 9.84 36.67 --- 157.46
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
MEAN MEAN MEAN
MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT MEAN CONCEN- SEDIMENT
DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE DISCHARGE TRATION DISCHARGE
DAY (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY) (CFS) (MG/L) (TONS/DAY)
JANUARY FEBRUARY MARCH
1 .56 41 .06 21 980 116 16 76 3.2
2 1.8 94 .53 181 4500 4890 15 75 2.9
3 1.6 76 .35 369 6860 14300 13 73 2.6
4 17 564 93 68 3270 608 12 72 2.2
5 2.0 20 .11 37 2360 247 13 115 4.8
6 1.1 16 .05 91 7040 2170 13 111 4.2
7 1.0 18 .05 89 7650 2070 11 88 2.8
8 .79 21 .04 77 4620 1000 10 71 1.9
9 .91 23 .06 32 1500 138 8.7 66 1.6
10 7.1 230 8.9 25 927 62 8.4 63 1.4
11 34 1820 523 35 822 77 8.2 61 1.3
12 140 8920 4430 40 914 102 8.0 58 1.3
13 25 775 75 33 675 61 30 1620 191
14 18 363 19 85 4720 1590 10 251 6.9
15 124 4710 3070 38 259 31 8.4 165 3.7
16 37 395 51 44 1100 250 7.9 151 3.2
17 11 203 8.2 31 219 20 7.5 146 2.9
18 162 8410 9050 23 89 5.5 7.0 142 2.7
19 78 5250 1300 51 1850 532 6.8 138 2.5
20 22 802 52 21 274 17 6.5 135 2.4
21 12 455 15 69 2940 1220 6.3 130 2.2
22 9.2 332 8.3 30 470 41 6.0 115 1.9
23 8.4 243 5.5 45 1290 270 27 1220 245
24 7.2 207 4.0 30 168 14 27 1600 179
25 6.1 186 3.1 26 92 6.3 20 511 31
26 5.9 167 2.7 22 84 5.0 14 96 3.6
27 6.3 150 2.6 19 79 4.1 12 90 2.9
28 4.9 129 1.7 17 78 3.6 10 84 2.4
29 37 1580 273 --- --- --- 9.1 79 1.9
30 12 413 14 --- --- --- 8.2 79 1.7
31 11 356 10 --- --- --- 11 123 4.0
TOTAL 804.86 --- 19021.25 1649 --- 29850.5 371.0 --- 721.1
SEDIMENT DISCHARGE, SUSPENDED (TONS/DAY), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
MEAN
MEAN CONCEN- SEDIMENT
DISCHARGE TRATION DISCHARGE
DAY (CFS) (MG/L) (TONS/DAY)
APRIL
1 8.7 79 1.9
2 7.8 77 1.6
3 18 204 12
4 28 744 79
5 15 104 4.1
6 9.7 110 2.9
7 8.5 108 2.5
8 7.2 102 2.0
9 6.8 97 1.8
10 6.0 92 1.5
11 5.5 87 1.3
12 5.0 82 1.1
13 25 385 40
14 12 85 2.8
15 9.2 73 1.8
16 8.3 64 1.5
17 7.4 56 1.1
18 6.5 49 .86
19 6.0 43 .69
20 5.7 38 .57
21 5.5 33 .49
22 5.2 29 .40
23 4.9 25 .33
24 4.9 24 .31
25 4.6 23 .29
26 4.1 22 .25
27 4.1 22 .24
28 4.0 21 .23
29 3.8 21 .22
30 3.8 20 .21
31 --- --- ---
TOTAL 251.2 --- 163.99
PERIOD 3117.54 49924.14
SUMMARY OF WATER AND SEDIMENT DISCHARGE, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
WATER SUSPENDED BEDLOAD TOTAL
MONTH DISCHARGE SEDIMENT DISCHARGE SEDIMENT
DISCHARGE DISCHARGE
CFS-DAYS TONS TONS TONS
OCTOBER 1997 0.04 0.00 0 0
NOVEMBER .... 4.77 9.84 0 10
DECEMBER .... 36.67 157.46 3 160
JANUARY 1998 804.86 19021.25 677 19700
FEBRUARY .... 1649.00 29850.50 1519 31400
MARCH ....... 371.00 721.10 93 814
APRIL 251.20 163.99 44 208
PERIOD ...... 3117.54 49924.14 2336 52300