APPENDIX C: SURFACE AREA AND STORAGE CAPACITY TABLES
storage capacity from 1953 and 1985 surveys,
Table C1 lists the Painted Rock Reservoir
from the 1993 Landsat estimates, and for a
elevation vs. water surface area from 1953 and
hypothetical 500,000-acre-ft loss.
1985 surveys and from the 1993 Landsat esti-
The 1953 capacity is also from a file pro-
vided by Mr. Peacock, and the 1985 capacity is
The 1953 area is from a file provided by Gregory
from a file printout, "GILA RIVER/PTRK/
Peacock of the Los Angeles District. These values
ELEV-STOR" (same as Reservoir Regulation
are presumed to be those that were computed
Manual [USACE 1962], Table 13, which was
from an aerial survey of March 1953; 1985 area is
computed in 1987. This manual has incorporat-
from a table that was computed in 1993 and
ed changes and additions, but it retains its
supplied by the Los Angeles District.
original publication date.)
Table C2 lists the Painted Rock Reservoir
Table C1. Painted Rock Reservoir elevation vs. water surface area as of 1953
and 1985 surveys, 1993 Landsat estimate, and a hypothetical 500,000-acre-ft
loss.
Surface area loss
Elevation
Surface area (acres)
500,000
(acres)
(ft above
1953
1985
1993
acre-ft-loss
1953 to
1985 to
MSL)
(survey) (survey) (Landsat)
scenario
1993
1993
Notes
530
27
0
0
0
27
0
*
532
108
31
0
0
108
31
*
534
189
62
0
0
189
62
*
536
270
88
0
0
270
88
*
538
351
107
0
0
351
107
*
540
432
127
0
0
432
127
*
542
575
151
0
0
575
151
*
544
718
176
0
0
718
176
*
546
922
274
0
0
922
274
*
548
1,190
447
143
122
1,047
304
550
1,450
620
282
240
1,168
338
552
1,790
1,123
751
641
1,039
372
554
2,130
1,626
1,220
1,041
910
406
556
2,470
2,043
1,603
1,368
867
440
558
2,810
2,373
1,899
1,620
911
474
560
3,150
2,703
2,196
1,873
954
507
562
3,650
3,081
2,540
2,166
1,110
541
564
4,150
3,458
2,883
2,459
1,267
575
566
4,680
3,981
3,372
2,877
1,308
609
568
5,250
4,649
4,006
3,417
1,244
643
570
5,800
5,317
4,640
3,958
1,160
677
572
6,370
6,145
5,435
4,636
935
710
574
6,920
6,974
6,230
5,314
690
744
576
7,590
7,733
6,955
5,933
635
778
578
8,370
8,423
7,611
6,493
759
812
578.51
8,571
8,599
7,779
6,636
793
821
2 Nov 98
580
9,160
9,113
8,180
6,978
980
933
* 1993 Landsat area value was set to zero because interpolation value was negative.
39
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