10287760 ELLERY LAKE NEAR LEE VINING, CA
LOCATION.-Lat 37°56'08", long 119°13'50", in SW 1/4 NW 1/4 sec.21, T.1 N., R.25 E., Mono County,
Hydrologic Unit 18090101, Inyo National Forest, in valve house, at base of Rhinedollar Dam, on Lee Vining Creek,
and 6.3 mi west of Lee Vining.
DRAINAGE AREA.-16.7 mi2.
PERIOD OF RECORD.-October 1990 to current year. Unpublished records prior to October 1990 available in files of
Southern California Edison Co.
GAGE.-Water-stage recorder. Datum of gage is sea level (levels by Southern California Edison Co.).
REMARKS.-Reservoir is formed on natural lake by rock-fill dam completed in 1927. Usable capacity, 493 acre-ft,
between elevations 9,478.53 ft, invert of outlet, and 9,492.53 ft, crest of spillway. Radial gates are
occasionally closed, which increases elevation to 9,496.53 ft and capacity to 749 acre-ft. Lake receives water
from Saddlebag and Tioga Lakes (stations 10287650 and 10287700) and releases it via Poole Powerplant Conduit
(station 10287762) to Poole Powerplant. Figures given represent usable contents.
COOPERATION.-Records collected by Southern California Edison Co., under general supervision of the U.S.
Geological Survey, in connection with a Federal Energy Regulatory Commission project.
EXTREMES FOR PERIOD OF RECORD.-Maximum contents, 677 acre-ft, Jan. 2, 1997, elevation, 9,495.43 ft; minimum, 195
acre-ft, Aug. 13, 1996, elevation, 9,487.17 ft.
EXTREMES FOR CURRENT YEAR.-Maximum contents, 573 acre-ft, June 18, elevation, 9,493.81 ft; minimum, 262 acre-ft,
Oct. 14, elevation, 9,488.46 ft.
Capacity table (elevation, in feet, and contents, in acre-feet)
(Based on survey by Southern California Edison Co., dated Aug. 18, 1981)
9,485 96 9,493 522
9,489 290 9,497 780
RESERVOIR STORAGE (ACRE-FEET), WATER YEAR OCTOBER 1998 TO SEPTEMBER 1999
DAILY OBSERVATION AT 2400 HOURS
DAY OCT NOV DEC JAN FEB MAR APR MAY JUN JUL AUG SEP
1 440 442 440 438 433 434 431 429 539 530 430 425
2 435 442 439 438 428 435 435 435 514 524 433 424
3 431 441 442 437 428 435 436 e426 491 506 433 424
4 428 438 446 437 430 435 438 e422 482 481 434 424
5 428 440 451 437 430 434 439 e487 513 452 437 424
6 430 442 455 437 431 434 443 484 528 449 437 425
7 434 449 459 437 436 432 449 467 505 483 428 428
8 427 451 459 434 442 434 445 457 497 478 417 435
9 393 453 458 433 433 431 446 443 508 449 422 437
10 360 455 456 432 435 431 442 438 506 436 433 435
11 334 455 455 431 441 433 435 460 520 439 440 433
12 317 456 453 430 442 433 431 493 537 431 444 436
13 299 458 451 430 440 434 430 458 549 422 448 436
14 262 462 453 433 438 430 432 415 561 435 451 433
15 286 462 459 438 432 415 437 406 556 443 452 436
16 323 462 465 444 430 413 440 415 553 434 452 438
17 359 461 465 451 429 416 441 448 569 415 452 438
18 395 460 458 452 425 424 447 466 573 415 453 446
19 430 469 452 448 424 427 452 468 561 415 455 438
20 448 470 444 434 428 424 457 470 564 419 456 434
21 449 465 445 426 433 426 457 477 550 423 455 433
22 449 455 451 437 436 435 450 514 563 427 451 433
23 448 449 456 442 436 438 448 537 568 433 448 433
24 449 442 457 436 437 439 441 530 556 439 448 434
25 449 434 456 444 433 443 441 539 529 443 449 433
26 449 433 448 441 432 441 439 529 511 446 448 433
27 449 437 443 437 433 440 440 539 509 446 442 435
28 448 436 439 430 434 438 440 555 514 442 434 438
29 446 438 437 425 --- 437 436 545 509 440 427 441
30 444 439 438 427 --- 434 432 546 514 431 422 444
31 442 --- 438 432 --- 431 --- 550 --- 422 427 ---
MAX 449 470 465 452 442 443 457 555 573 530 456 446
MIN 262 433 437 425 424 413 430 406 482 415 417 424
a 9491.68 9491.62 9491.61 9491.50 9491.53 9491.49 9491.50 9493.44 9492.86 9491.34 9491.41 9491.71
b +4 -3 -1 -6 +2 -3 +1 +118 -36 -92 +5 +17
CAL YR 1998 MAX 605 MIN 262 b -11
WTR YR 1999 MAX 573 MIN 262 b +6
e Estimated.
USGS Water Resources of California
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