DISCHARGE: October 1965 to current year. |
STAGE: Water years 1994-2000. |
CHEMICAL: Water years 1977-91. Additional chemical data for water years 1963-77 are published in Water-Resources Investigations 78-24 and 79-25 as site ATH 05. |
SEDIMENT: Water years 1977 to 1981. |
SPECIFIC CONDUCTANCE: Water years 1980-81. |
WATER TEMPERATURE: Water years 1980-81. |
DISCHARGE, IN CUBIC FEET PER SECOND, WATER YEAR OCTOBER 1999 TO SEPTEMBER 2000 DAILY MEAN VALUES |
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DAY | OCT | NOV | DEC | JAN | FEB | MAR | APR | MAY | JUN | JUL | AUG | SEP |
1 | 11 | 5.1 | 7.9 | 11 | e17 | 244 | 59 | 42 | 113 | 87 | 19 | 11 |
2 | 9.2 | 5.2 | 7.4 | 10 | e16 | 167 | 55 | 36 | 99 | 69 | 19 | 11 |
3 | 7.7 | 7.4 | 11 | 1010 | e15 | 142 | 51 | 35 | 382 | 57 | 22 | 9.8 |
4 | 6.3 | 7.9 | 12 | 2360 | e15 | 132 | 47 | 32 | 110 | 51 | 141 | 9.2 |
5 | 5.9 | 8.3 | 13 | 1710 | 17 | 107 | 39 | 35 | 58 | 41 | 109 | 8.8 |
6 | 5.6 | 11 | 12 | 385 | 18 | 88 | 40 | 36 | 44 | 35 | 62 | 8.2 |
7 | 5.4 | 11 | 11 | 150 | 18 | 74 | 50 | 34 | 32 | 26 | 39 | 7.4 |
8 | 5.2 | 11 | 9.7 | 96 | 19 | 65 | 48 | 33 | 25 | 23 | 39 | 6.2 |
9 | 11 | 9.8 | 11 | 73 | 19 | 74 | 47 | 32 | 23 | 23 | 29 | 5.7 |
10 | 14 | 9.7 | 187 | 60 | 19 | 56 | 34 | 144 | 23 | 22 | 20 | 5.7 |
11 | 10 | 10 | 173 | 49 | 21 | 43 | 34 | 70 | 21 | 21 | 19 | 5.9 |
12 | 7.8 | 11 | 81 | 41 | 21 | 49 | 30 | 43 | 20 | 55 | 18 | 7.2 |
13 | 6.3 | 9.0 | 145 | 36 | 38 | 47 | 26 | 45 | 19 | 58 | 17 | 9.9 |
14 | 5.4 | 7.7 | 354 | 30 | 287 | 45 | 25 | 39 | 18 | 30 | 15 | 9.5 |
15 | 6.9 | 7.5 | 163 | 25 | 129 | 45 | 25 | 30 | 18 | 25 | 14 | 8.3 |
16 | 9.4 | 8.1 | 54 | 24 | 87 | 238 | 26 | 23 | 19 | 23 | 14 | 9.5 |
17 | 8.5 | 7.7 | 31 | 24 | 65 | 336 | 39 | 20 | 1100 | 21 | 14 | 7.6 |
18 | 7.3 | 6.7 | 21 | 24 | 1020 | 152 | 55 | 20 | 1810 | 17 | 14 | 6.8 |
19 | 6.0 | 7.6 | 17 | 23 | 1950 | 158 | 42 | 313 | 1900 | 115 | 13 | 6.4 |
20 | 6.6 | 14 | 15 | 24 | 1280 | 1640 | 36 | 122 | 895 | 63 | 13 | 5.6 |
21 | 7.2 | 15 | 13 | 23 | 398 | 1420 | 36 | 59 | 479 | 31 | 12 | 6.2 |
22 | 6.8 | 15 | 13 | 24 | 224 | 793 | 32 | 39 | 329 | 24 | 12 | 6.0 |
23 | 5.9 | 16 | 13 | 23 | 169 | 322 | 24 | 520 | 178 | 20 | 12 | 5.9 |
24 | 7.0 | 15 | 12 | e21 | 225 | 207 | 28 | 934 | 127 | 19 | 12 | 7.2 |
25 | 8.3 | 13 | 12 | e20 | 217 | 164 | 104 | 607 | 101 | 20 | 12 | 13 |
26 | 6.8 | 14 | 12 | e19 | 337 | 117 | 88 | 370 | 73 | 19 | 11 | 23 |
27 | 6.5 | 15 | 11 | e18 | 1360 | 129 | 60 | 792 | 358 | 19 | 11 | 17 |
28 | 6.0 | 14 | 11 | e17 | 934 | 126 | 156 | 659 | 389 | 18 | 11 | 9.1 |
29 | 5.2 | 12 | 11 | e17 | 463 | 91 | 98 | 289 | 175 | 20 | 9.9 | 7.2 |
30 | 5.7 | 9.4 | 11 | e16 | --- | 79 | 58 | 181 | 116 | 22 | 9.8 | 6.2 |
31 | 5.5 | --- | 11 | e17 | --- | 71 | --- | 142 | --- | 20 | 9.8 | --- |
TOTAL | 226.4 | 314.1 | 1466.0 | 6380 | 9398 | 7421 | 1492 | 5776 | 9054 | 1094 | 772.5 | 260.5 |
MEAN | 7.30 | 10.5 | 47.3 | 206 | 324 | 239 | 49.7 | 186 | 302 | 35.3 | 24.9 | 8.68 |
MAX | 14 | 16 | 354 | 2360 | 1950 | 1640 | 156 | 934 | 1900 | 115 | 141 | 23 |
MIN | 5.2 | 5.1 | 7.4 | 10 | 15 | 43 | 24 | 20 | 18 | 17 | 9.8 | 5.6 |
CFSM | .05 | .07 | .32 | 1.40 | 2.20 | 1.63 | .34 | 1.27 | 2.05 | .24 | .17 | .06 |
IN. | .06 | .08 | .37 | 1.61 | 2.38 | 1.88 | .38 | 1.46 | 2.29 | .28 | .20 | .07 |
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1966 - 2000, BY WATER YEAR (WY) | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
MEAN | 20.5 | 111 | 196 | 218 | 279 | 323 | 330 | 262 | 122 | 38.9 | 37.4 | 20.1 |
MAX | 157 | 643 | 1193 | 608 | 864 | 837 | 922 | 1115 | 633 | 163 | 485 | 110 |
(WY) | 1985 | 1986 | 1983 | 1999 | 1989 | 1979 | 1983 | 1983 | 1997 | 1976 | 1985 | 1992 |
MIN | 2.57 | 4.05 | 8.22 | 10.7 | 42.3 | 28.6 | 22.3 | 15.4 | 6.10 | 1.88 | 5.34 | 1.67 |
(WY) | 1967 | 1972 | 1977 | 1981 | 1996 | 1981 | 1981 | 1988 | 1972 | 1966 | 1994 | 1966 |
SUMMARY STATISTICS | FOR 1999 CALENDAR YEAR | FOR 2000 WATER YEAR | WATER YEARS 1966 - 2000 | |||
---|---|---|---|---|---|---|
ANNUAL TOTAL | 63509.4 | 43654.5 | ||||
ANNUAL MEAN | 174 | 119 | 163 | |||
HIGHEST ANNUAL MEAN | 332 | 1985 | ||||
LOWEST ANNUAL MEAN | 51.0 | 1967 | ||||
HIGHEST DAILY MEAN | 3770 | Jan 23 | 2360 | Jan 4 | 4880 | Dec 26 1982 |
LOWEST DAILY MEAN | 5.1 | Nov 1 | 5.1 | Nov 1 | .60 | A |
ANNUAL SEVEN-DAY MINIMUM | 5.6 | Oct 27 | 5.6 | Oct 27 | .77 | Sep 1 1966 |
INSTANTANEOUS PEAK FLOW | 2480 | Jan 4 | 5160 | Jan 31 1982 | ||
INSTANTANEOUS PEAK STAGE | 13.45 | Jan 4 | 16.32 | Jan 31 1982 | ||
INSTANTANEOUS LOW FLOW | 4.8 | B | ||||
ANNUAL RUNOFF (CFSM) | 1.18 | .81 | 1.11 | |||
ANNUAL RUNOFF (INCHES) | 16.07 | 11.05 | 15.03 | |||
10 PERCENT EXCEEDS | 420 | 257 | 401 | |||
50 PERCENT EXCEEDS | 25 | 23 | 31 | |||
90 PERCENT EXCEEDS | 7.7 | 7.2 | 5.8 |
Table of Contents |
Introduction |
Station Descriptions |
Surface-Water Data |
Ground-Water Data |
Meteorological Data |
Biological Data |