1998 California Hydrologic Data Report
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA
- 1998 WY
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA
LOCATION.-Lat 38°55'21", long 119°59'26", in NW 1/4 SE 1/4 sec.4, T.12 N., R.18 E., El Dorado County, Hydrologic Unit 16050101, on left bank 200 ft downstream from U.S. Highway 50 Bridge, 1.0 mi northeast of South Lake Tahoe Post Office, and 1.4 mi upstream from Lake Tahoe.
DRAINAGE AREA.-54.9 mi2.
WATER-DISCHARGE RECORDS
PERIOD OF RECORD.-October 1971 to September 1974, October 1976 to June 1977, October 1977 to June 1978, March 1980 to current year.
GAGE.-Water-stage recorder. Datum of gage is 6,229.04 ft above sea level. Prior to Apr. 26, 1984, at datum 2.00 ft higher. Prior to Oct. 19, 1993, at site 200 ft upstream at same datum.
REMARKS.-Records good, including estimated daily discharges. Two small dams may cause slight regulation at times. Some small diversions for domestic use upstream from station. Echo Lake conduit (station 11434500) diverts from Echo Lake (station 10336608), to South Fork American River Basin. See schematic diagram of Truckee River Basin.
EXTREMES FOR PERIOD OF RECORD.-Maximum discharge, 5,480 ft3/s, Jan. 2, 1997, gage height, 9.95 ft; minimum daily, 0.70 ft3/s, Aug. 22 to Sept. 5, 1994.
EXTREMES FOR CURRENT YEAR.-Peak discharges greater than base discharge of 300 ft3/s, or maximum:
Discharge Gage height Discharge Gage height
Date Time (ft3/s) (ft) Date Time (ft3/s) (ft)
Jan. 19 0815 477 4.34 June 7 0915 897 6.04
Mar. 24 1315 1,480 6.89
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 11 12 16 16 e48 46 146 450 367 406 85 19
2 12 11 14 e17 e48 e46 135 452 452 398 82 19
3 12 11 e16 e17 e100 e46 131 418 402 427 79 18
4 13 11 14 e17 e75 e46 123 397 368 407 77 19
5 13 11 14 e17 e49 e45 118 382 404 414 69 22
6 12 11 14 e17 e49 e45 115 384 480 424 65 30
7 11 13 e14 e17 e49 e45 109 318 756 407 63 30
8 12 12 e18 e17 e49 45 107 324 671 408 58 24
9 17 12 e20 e17 e49 44 109 383 558 398 54 36
10 18 12 e23 e17 e49 45 112 332 597 381 51 35
11 17 12 21 e17 e50 48 108 286 590 333 47 29
12 17 12 20 e25 e50 53 102 264 541 294 45 26
13 19 11 20 e25 e50 56 97 241 696 281 42 24
14 19 12 19 e25 e50 59 95 214 691 252 41 22
15 18 12 21 e100 e50 68 90 200 723 236 43 20
16 18 13 19 e250 e51 84 87 226 712 222 40 22
17 13 11 18 310 e51 97 89 206 647 217 37 19
18 12 11 18 164 e51 101 102 189 589 218 34 19
19 12 14 19 374 51 108 125 201 658 205 34 18
20 12 15 19 e200 e50 128 158 232 647 194 32 18
21 11 13 18 e90 e50 146 213 236 648 184 30 17
22 11 12 16 e70 e49 302 285 208 668 181 29 17
23 11 13 15 68 e49 584 338 240 585 169 27 18
24 11 13 15 62 e48 1260 276 240 478 164 26 20
25 12 15 15 e55 e48 728 238 344 454 166 25 21
26 12 e20 16 52 e47 384 227 288 528 131 24 22
27 12 22 16 49 e47 298 249 235 462 123 23 28
28 12 20 16 e49 46 243 285 221 435 108 22 27
29 13 18 16 e49 --- 199 335 256 472 101 22 28
30 12 17 16 e49 --- 175 404 223 484 98 21 29
31 12 --- 15 e49 --- 158 --- 269 --- 91 20 ---
TOTAL 417 402 531 2301 1453 5732 5108 8859 16763 8038 1347 696
MEAN 13.5 13.4 17.1 74.2 51.9 185 170 286 559 259 43.5 23.2
MAX 19 22 23 374 100 1260 404 452 756 427 85 36
MIN 11 11 14 16 46 44 87 189 367 91 20 17
AC-FT 827 797 1050 4560 2880 11370 10130 17570 33250 15940 2670 1380
e Estimated.
STATISTICS OF MONTHLY MEAN DATA FOR WATER YEARS 1972 - 1998, BY WATER YEAR (WY)
MEAN 15.5 42.3 52.9 71.4 71.8 112 168 305 265 95.2 22.3 13.9
MAX 72.1 225 218 484 307 305 300 567 795 448 102 55.3
(WY) 1983 1984 1982 1997 1986 1986 1982 1982 1983 1995 1983 1983
MIN 2.60 7.36 8.07 8.00 10.5 21.2 64.0 55.3 23.5 4.65 1.15 1.39
(WY) 1989 1991 1991 1991 1991 1977 1977 1977 1992 1994 1994 1988
SUMMARY STATISTICS FOR 1997 CALENDAR YEAR FOR 1998 WATER YEAR WATER YEARS 1972 - 1998
ANNUAL TOTAL 53013 51647
ANNUAL MEAN 145 141 106
HIGHEST ANNUAL MEAN 203 1983
LOWEST ANNUAL MEAN 29.2 1988
HIGHEST DAILY MEAN 3150 Jan 2 1260 Mar 24 3150 Jan 2 1997
LOWEST DAILY MEAN 10 Sep 13 11 Oct 1 .70 Aug 22 1994
ANNUAL SEVEN-DAY MINIMUM 11 Oct 31 11 Oct 31 .70 Aug 22 1994
INSTANTANEOUS PEAK FLOW 1480 Mar 24 5480 Jan 2 1997
INSTANTANEOUS PEAK STAGE 6.89 Mar 24 9.95 Jan 2 1997
ANNUAL RUNOFF (AC-FT) 105200 102400 76510
10 PERCENT EXCEEDS 383 407 292
50 PERCENT EXCEEDS 77 49 40
90 PERCENT EXCEEDS 12 13 7.9
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA-Continued
- 1998 WY
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA-Continued
WATER-QUALITY RECORDS
PERIOD OF RECORD.-Water years 1972-74, 1978, 1980 to current year.
PERIOD OF DAILY RECORD.-
SPECIFIC CONDUCTANCE: March 1981 to September 1983.
WATER TEMPERATURE: October 1971 to June 1974, October 1977 to June 1978, March 1980 to September 1992, September 1997 to current year.
SUSPENDED-SEDIMENT DISCHARGE: October 1971 to June 1974, October 1977 to June 1978, March 1980 to September 1992.
INSTRUMENTATION.-Water-temperature recorder since September 1997 to current year, two times per hour.
REMARKS.-In October 1992, station was incorporated into the expanded Lake Tahoe Interagency Monitoring Program to monitor tributary contributions of nutrients and sediment to Lake Tahoe. Water temperature records represent water temperature at probe within 0.5C. Interruptions in record due to loss of hydrologic communication with stream channel and(or) instrument malfunction. Water-temperature data for September 1997 were not published but are available from U.S. Geological Survey. These data are reviewed and provided by the Nevada District Office, U.S. Geological Survey.
EXTREMES FOR PERIOD OF DAILY RECORD.-
WATER TEMPERATURE: Maximum, 26.0C, Aug. 18, 1982; minimum, freezing point on many days during winter months in most years.
SEDIMENT CONCENTRATION: Maximum daily mean, 416 mg/L, Mar. 4, 1991; minimum daily mean, 0 mg/L, several days during most years.
SEDIMENT LOAD: Maximum daily, 781 tons, Mar. 8, 1986; minimum daily, 0 tons, several days during most years.
EXTREMES FOR CURRENT YEAR.-
WATER TEMPERATURE: Maximum, 21.0C, Aug. 30, 31; minimum, freezing point, many days November to March.
WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DIS- PH BARO- OXYGEN,
CHARGE, SPE- WATER METRIC DIS-
INST. CIFIC WHOLE PRES- SOLVED
CUBIC CON- FIELD TEMPER- TEMPER- SURE OXYGEN, (PER-
FEET DUCT- (STAND- ATURE ATURE (MM DIS- CENT
DATE TIME PER ANCE ARD AIR WATER OF SOLVED SATUR-
SECOND (US/CM) UNITS) (DEG C) (DEG C) HG) (MG/L) ATION)
(00061) (00095) (00400) (00020) (00010) (00025) (00300) (00301)
OCT
07... 1309 8.6 95 -- 8.0 10.5 -- -- --
21... 1130 12 88 -- 13.5 7.5 -- -- --
NOV
25... 1140 16 83 -- 7.0 3.5 -- -- --
DEC
15... 1310 38 135 7.0 1.5 .5 605 11.3 99
JAN
16... 1330 250 54 -- 5.0 .5 -- -- --
22... 1530 70 61 -- 4.0 2.0 -- -- --
FEB
25... 1200 48 87 -- 2.5 .5 -- -- --
MAR
18... 1230 98 81 -- 7.5 4.5 -- -- --
25... 1330 643 44 -- 5.0 2.5 -- -- --
APR
21... 1420 190 58 -- 18.0 7.5 -- -- --
30... 1315 313 39 -- 16.0 6.0 -- -- --
MAY
05... 1330 362 38 7.3 10.5 4.5 600 10.0 98
13... 1200 241 45 7.0 1.5 2.5 596 10.5 99
20... 1240 230 43 -- 10.5 6.0 -- -- --
28... 1450 209 41 -- 12.0 7.5 -- -- --
JUN
03... 1255 396 27 -- 12.0 4.5 -- -- --
07... 1415 793 25 -- 16.5 8.5 -- -- --
11... 1415 552 23 -- 10.0 5.5 -- -- --
17... 1120 679 20 -- 12.5 4.5 -- -- --
23... 1540 541 22 -- 19.0 8.5 -- -- --
30... 1610 433 22 -- 20.0 11.0 -- -- --
JUL
15... 1515 226 26 -- 26.0 14.0 -- -- --
29... 1030 104 37 -- 19.5 12.5 -- -- --
AUG
13... 1245 42 56 -- 24.5 18.0 -- -- --
SEP
09... 1530 40 68 -- 15.0 15.5 -- -- --
29... 1415 28 73 7.6 14.5 12.0 603 9.1 107
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA-Continued
WATER-QUALITY DATA, WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
NITRO- NITRO- NITRO- PHOS- IRON, SEDI-
GEN, GEN, GEN,AM- PHORUS BIO. MENT,
NO2+NO3 AMMONIA MONIA + PHOS- ORTHO, REACT- SEDI- DIS-
DIS- DIS- ORGANIC PHORUS DIS- IVE MENT, CHARGE,
SOLVED SOLVED TOTAL TOTAL SOLVED TOTAL SUS- SUS-
DATE (MG/L (MG/L (MG/L (MG/L (MG/L (UG/L PENDED PENDED
AS N) AS N) AS N) AS P) AS P) AS FE) (MG/L) (T/DAY)
(00631) (00608) (00625) (00665) (00671) (46568) (80154) (80155)
OCT
07... -- -- -- -- -- -- -- --
21... .016 .001 .11 .017 .005 290 5 .16
NOV
25... .009 .001 .10 .018 .004 323 2 .09
DEC
15... .025 .022 .10 .038 .003 433 15 1.5
JAN
16... .026 .001 .46 .111 .007 1060 77 52
22... .032 .006 .21 .020 .005 366 14 2.6
FEB
25... .041 <.001 .14 .024 .016 437 29 3.8
MAR
18... .022 <.001 .16 .026 .005 464 10 2.6
25... .029 .002 .47 .064 .011 933 63 109
APR
21... .015 .002 .12 .028 .005 340 17 8.7
30... .016 .012 .15 .024 .014 341 20 17
MAY
05... .012 .006 .10 .019 .005 214 11 11
13... .020 .002 .20 .023 .003 289 7 4.6
20... .015 .001 .09 .026 .003 282 10 6.2
28... .014 <.001 .10 .021 .004 266 6 3.4
JUN
03... .014 .004 .12 .031 .004 543 17 18
07... .014 <.001 .21 .071 .010 704 66 141
11... .009 .002 .16 .061 .013 535 45 67
17... .007 .001 .12 .043 .004 454 22 40
23... .003 <.001 .23 .036 .005 326 20 29
30... .010 <.001 .14 .049 .003 373 17 20
JUL
15... .009 .001 .08 .033 .005 482 13 7.9
29... .012 .002 .08 .034 .006 230 5 1.4
AUG
13... .006 .003 .05 .024 .006 201 3 .34
SEP
09... .003 <.001 .15 .029 .006 377 8 .86
29... .009 .001 .13 .018 .006 305 4 .30
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
OCTOBER NOVEMBER DECEMBER JANUARY
1 17.0 11.0 14.0 10.0 5.5 7.5 4.5 1.5 2.5 .5 .0 .0
2 16.0 11.5 13.0 9.5 5.0 7.0 2.5 .0 1.0 .0 .0 .0
3 16.0 9.5 12.5 8.5 5.0 6.5 1.5 .0 .5 .5 .0 .0
4 15.5 9.5 12.0 8.5 4.5 6.0 2.0 .0 1.0 .0 .0 .0
5 15.5 9.0 11.5 8.0 4.0 5.5 1.0 .0 .5 .0 .0 .0
6 13.0 8.5 10.5 8.5 4.0 6.5 1.0 .5 1.0 .0 .0 .0
7 12.5 7.5 9.5 8.5 5.0 6.5 1.5 .0 .5 .0 .0 .0
8 10.5 6.5 8.0 6.0 3.0 4.5 .0 .0 .0 .0 .0 .0
9 10.0 6.5 7.5 5.0 2.0 3.5 .0 .0 .0 .0 .0 .0
10 9.5 6.0 7.0 4.5 3.5 4.0 .0 .0 .0 .5 .0 .0
11 9.0 5.5 7.0 5.0 3.5 4.0 .5 .0 .0 .0 .0 .0
12 9.0 4.5 6.5 5.5 2.0 3.5 .5 .0 .0 .0 .0 .0
13 10.0 4.5 7.0 3.5 2.0 2.5 .5 .0 .0 .0 .0 .0
14 10.5 5.0 7.5 3.5 1.0 2.0 .0 .0 .0 .0 .0 .0
15 11.0 6.0 8.5 2.5 .5 1.5 .0 .0 .0 .0 .0 .0
16 11.5 6.5 9.0 2.0 .0 1.0 .5 .0 .0 .0 .0 .0
17 12.0 6.5 9.0 4.5 1.0 2.5 .5 .0 .0 1.0 .0 .5
18 11.5 6.5 8.5 3.0 1.5 2.0 .5 .0 .0 1.5 .0 .5
19 10.5 6.5 8.0 4.0 2.0 3.0 .5 .0 .0 .5 .0 .0
20 10.5 6.0 7.5 4.5 2.0 3.0 .5 .0 .0 1.0 .0 .5
21 10.5 5.5 7.5 5.5 2.5 4.0 .0 .0 .0 1.0 .0 .5
22 10.5 5.5 7.5 5.5 3.5 4.5 .5 .0 .0 2.5 .0 1.0
23 10.5 6.5 8.5 5.5 3.5 4.5 .5 .0 .0 3.5 .5 1.5
24 9.0 5.0 7.0 5.5 3.0 4.0 .0 .0 .0 3.0 .0 1.5
25 8.0 3.5 5.5 4.5 2.5 3.5 .0 .0 .0 2.0 .0 1.0
26 8.0 3.0 5.0 4.0 1.0 2.5 .0 .0 .0 2.0 .0 1.0
27 8.0 3.5 5.5 3.5 1.0 2.0 .0 .0 .0 4.5 1.0 2.5
28 6.5 3.5 4.5 3.5 1.0 2.0 .5 .0 .0 3.5 .5 2.5
29 7.0 3.0 4.5 3.0 .5 2.0 .5 .0 .0 2.5 .0 1.0
30 9.0 4.0 6.5 3.0 1.0 2.0 .5 .0 .0 1.0 .0 .0
31 10.0 5.5 7.5 --- --- --- .5 .0 .0 1.0 .0 .0
MONTH 17.0 3.0 8.2 10.0 .0 3.8 4.5 .0 .2 4.5 .0 .5
10336610 UPPER TRUCKEE RIVER AT SOUTH LAKE TAHOE, CA-Continued
TEMPERATURE, WATER (DEG. C), WATER YEAR OCTOBER 1997 TO SEPTEMBER 1998
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
FEBRUARY MARCH APRIL MAY
1 .5 .0 .0 4.5 .5 2.5 4.0 1.0 2.0 8.5 2.0 5.0
2 .5 .0 .0 5.0 1.0 3.5 6.5 1.5 4.0 6.5 3.0 4.5
3 1.5 .0 1.0 6.0 2.0 4.0 5.5 2.5 3.5 6.0 2.5 4.0
4 2.0 .0 1.0 4.5 .0 2.5 6.0 1.5 4.0 6.5 3.0 4.5
5 1.0 .0 .5 2.5 .0 1.5 6.5 2.0 4.0 5.0 2.5 4.0
6 1.5 .5 1.0 1.5 .0 .5 5.0 1.5 3.5 3.5 2.0 3.0
7 .5 .0 .0 1.5 .0 .5 7.5 1.5 4.0 6.5 3.0 4.5
8 .0 .0 .0 5.5 .5 2.5 7.0 1.5 4.0 8.0 4.0 5.5
9 .0 .0 .0 5.5 .5 3.0 7.5 3.0 5.0 8.0 3.0 5.0
10 .0 .0 .0 6.0 .5 3.5 6.0 2.5 4.0 7.0 2.0 4.0
11 1.0 .0 .5 6.5 2.0 4.5 4.0 2.0 3.0 6.0 2.0 4.0
12 1.5 .0 1.0 5.0 2.0 3.5 5.5 1.0 3.0 5.0 2.5 3.5
13 4.5 .5 2.5 3.5 2.0 3.0 3.0 .5 1.5 6.5 2.0 4.0
14 2.5 .0 .5 7.0 1.0 4.0 5.5 .5 3.0 7.5 3.0 5.0
15 1.0 .0 .5 7.0 2.0 4.5 6.5 1.0 3.5 9.5 3.0 6.0
16 .5 .0 .0 7.0 2.5 4.5 7.5 1.0 4.5 6.5 2.5 3.5
17 1.0 .0 .5 6.5 1.0 4.0 9.0 2.0 5.5 8.5 1.0 4.5
18 2.5 .0 1.0 6.5 1.5 4.0 9.0 3.0 6.0 9.5 2.5 6.0
19 2.5 .0 1.0 6.5 1.0 4.0 10.0 3.5 6.5 9.5 3.5 6.5
20 1.5 .0 .5 7.0 2.0 4.0 10.0 3.0 6.5 9.0 3.5 6.0
21 1.0 .0 .0 6.0 1.5 3.5 10.5 3.0 6.5 6.5 3.0 4.0
22 .0 .0 .0 4.0 1.5 2.5 7.5 2.5 5.0 10.0 2.5 5.5
23 .0 .0 .0 3.0 1.0 2.0 5.5 2.5 4.0 7.0 3.5 5.0
24 .5 .0 .0 1.0 1.0 1.0 6.5 2.0 4.0 10.0 3.0 6.0
25 .5 .0 .0 2.5 .5 1.5 8.5 2.5 5.0 7.5 3.5 5.0
26 .5 .0 .0 4.5 1.0 2.5 8.5 2.0 5.0 4.0 2.0 3.0
27 1.5 .0 .5 4.5 1.0 2.5 9.0 2.5 5.5 7.0 1.5 4.0
28 4.5 .5 2.5 4.0 .0 2.0 9.0 2.0 5.5 8.0 3.5 5.5
29 --- --- --- 2.5 .5 1.5 8.5 2.0 5.5 7.5 1.5 4.5
30 --- --- --- 5.5 .0 2.5 8.5 2.0 5.0 9.5 2.5 6.0
31 --- --- --- 4.0 1.5 2.5 --- --- --- 10.0 3.5 7.0
MONTH 4.5 .0 .5 7.0 .0 2.8 10.5 .5 4.4 10.0 1.0 4.8
DAY MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN MAX MIN MEAN
JUNE JULY AUGUST SEPTEMBER
1 10.0 3.5 6.5 12.0 6.0 9.0 --- --- --- 20.5 16.5 18.5
2 7.0 3.5 5.0 13.0 7.0 10.0 --- --- --- 20.0 16.0 18.0
3 8.0 3.5 5.0 12.5 7.0 9.5 --- --- --- 19.0 15.5 17.5
4 8.5 3.5 6.0 13.5 8.0 10.5 --- --- --- 18.0 16.0 17.0
5 8.0 3.5 5.5 13.0 8.5 11.0 --- --- --- 20.0 15.5 18.0
6 6.5 3.5 5.5 --- --- --- --- --- --- 19.0 16.0 17.5
7 10.5 4.0 7.0 --- --- --- 20.0 14.5 17.5 18.0 14.5 16.5
8 8.0 4.5 6.5 --- --- --- 18.5 12.5 16.0 17.5 15.5 16.5
9 9.0 4.0 6.0 --- --- --- 19.0 12.5 16.0 16.0 13.5 15.5
10 7.0 4.0 5.0 --- --- --- 19.0 13.0 16.5 14.0 10.5 13.0
11 5.5 4.0 5.0 --- --- --- 19.5 14.0 17.0 15.5 12.0 14.0
12 8.5 4.0 6.0 --- --- --- 20.5 15.0 18.0 16.0 11.5 14.0
13 10.0 5.0 7.0 --- --- --- 19.5 16.0 18.0 17.5 13.0 15.5
14 10.5 4.5 7.5 --- --- --- 18.5 15.5 17.0 18.0 13.5 16.0
15 10.0 5.0 7.5 --- --- --- 19.0 13.5 16.5 17.5 14.5 16.0
16 10.0 5.0 7.5 --- --- --- 19.0 14.5 17.0 18.5 14.0 16.0
17 10.0 4.0 7.0 --- --- --- 18.5 14.5 17.0 18.0 14.0 16.0
18 10.5 5.0 7.5 --- --- --- 17.5 13.0 16.0 17.0 12.0 14.5
19 10.5 5.0 7.5 --- --- --- 17.5 14.0 16.5 16.0 11.0 13.5
20 10.5 5.0 7.5 --- --- --- 17.5 13.5 16.0 15.5 11.5 13.5
21 10.0 5.5 8.0 --- --- --- 17.0 12.5 15.5 15.0 10.5 12.5
22 11.0 5.5 8.0 --- --- --- 17.0 12.0 15.0 14.0 10.0 12.0
23 10.5 5.0 7.5 --- --- --- 17.5 13.0 15.5 13.5 10.0 12.0
24 11.0 5.5 8.0 --- --- --- 17.5 13.0 16.0 13.0 10.0 11.5
25 11.0 6.0 8.5 --- --- --- 17.5 13.5 15.5 11.5 9.5 10.5
26 10.5 5.0 8.0 --- --- --- 18.0 13.0 16.0 10.0 8.5 9.5
27 11.5 5.5 8.5 --- --- --- 18.5 14.0 16.5 11.0 8.5 9.5
28 12.0 6.0 9.0 --- --- --- 19.5 15.0 17.5 12.0 7.0 9.5
29 12.0 6.0 9.0 --- --- --- 20.5 16.0 18.5 12.0 8.5 10.5
30 12.0 6.0 9.0 --- --- --- 21.0 16.5 19.0 13.5 9.5 11.5
31 --- --- --- --- --- --- 21.0 16.5 18.5 --- --- ---
MONTH 12.0 3.5 7.1 --- --- --- --- --- --- 20.5 7.0 14.2
1998 California Hydrologic Data Report Index
USGS Water Resources of California
Contact:
webmaster@maildcascr.wr.usgs.gov
Last modified: Wed Aug 4 09:40:26 PDT 1999