SURFACE WATER SUPFLY of the UNITED STATEP
SURFACE WATER SUPFLY of the UNITED STATEP
SURFACE WATER SUPFLY of the UNITED STATEP
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Lake Greenwood^ear Chappella, S. C. ,<br />
BASIN 199<br />
Water-stage Reorder, lat. 34°10», long. 81°54', at left upstream end <strong>of</strong> dam<br />
dsa River, 0.7 mile upstream from Wilson Creelc arid 2.4 miles west <strong>of</strong>'tampons,<br />
Newfegrry County. Datura <strong>of</strong> gage Is 400.00 feet above mean sea level, datu* <strong>of</strong> ,1^*9<br />
(levels by Dan T. Duncan Engineering Co.); gage readings have been reduced to elevations<br />
above mean sea level.<br />
Drainage area.v 1,150 square miles.<br />
Records available.- Ifey 1940 to September 1945.<br />
Extremes.- Maximum elevation during year, 439.69 feet Sept. 20; minimum, 426.29 feet<br />
1940^45: Maximal elevatl'on, 441.64 feet Mar. 31, 1944; minimum elevation since " \<br />
normal reservoir level was first reached, that <strong>of</strong> Nov. 18, 1944.<br />
Remarks.- Utoe Is formed by earth dam; storage began In way 1940; dam completed In 1940.<br />
OsaEIe capacity, about 8,330,000,000 cubic feet between elevations 480.0 feet (limit<br />
<strong>of</strong> draw-down) and 441.5 feet (top <strong>of</strong> 14 foot flashboards on top <strong>of</strong> spillway e^tes)<br />
above mean sea level.' Bead, storage Is about 3,500,000,000 cubic feet. Figures -given<br />
' herein represent usable contents. Elevation <strong>of</strong> spillway crest Is 415.0 feet above mean<br />
sea level. Water is used- for generation <strong>of</strong> power.<br />
Daj<br />
1<br />
2<br />
3<br />
4<br />
5<br />
6<br />
7<br />
a<br />
9<br />
10<br />
11 28.63<br />
12 88.49<br />
13 E8.31<br />
14 ' £8.20<br />
is . 23. S3<br />
16<br />
17<br />
IS<br />
19<br />
80<br />
21<br />
22<br />
23<br />
24<br />
26<br />
28<br />
27<br />
28<br />
29<br />
30<br />
SI<br />
Oct.<br />
29.25<br />
S9. 45<br />
89.57<br />
29.51<br />
89.39<br />
29. SS<br />
S9.ll<br />
29.21<br />
28*98<br />
28. 75<br />
£8.16<br />
28.06<br />
27.9ft<br />
27.ee<br />
2T.88<br />
27.95 26,52<br />
28.20 26.47<br />
28.32 26.46<br />
28.85 26.43<br />
28.23 - 26.34<br />
28.12<br />
28.00<br />
27.85<br />
27.91<br />
87.89<br />
27.78<br />
Elevation, In feet, water year October 1944 to September 1945<br />
Nov. Dao. Jan. Frttt. Mar. Apr. «ay ' June July<br />
27.64<br />
27.50<br />
27.36<br />
27.26<br />
27.39<br />
27.37<br />
27.28<br />
,27.09<br />
26, 9 S<br />
26.81<br />
26.75<br />
26.90<br />
26.89<br />
26.78<br />
26.63<br />
26.51<br />
ee.se<br />
26.34<br />
26.56<br />
26.6S<br />
26.42<br />
26.44<br />
26.39<br />
26.61<br />
26.99<br />
-<br />
27.09<br />
27.21<br />
27.46<br />
27.48<br />
27.43<br />
87.40<br />
27.81<br />
87.30<br />
27.37<br />
27.6*<br />
27.83<br />
87.93<br />
87,85<br />
87.78<br />
27.ee<br />
87.82<br />
35.85<br />
27.87<br />
87.74<br />
27.58<br />
87.40<br />
27.25<br />
27.50<br />
27.36<br />
27-. 21<br />
2.7.17<br />
87.10<br />
26.96<br />
26.77<br />
86.65<br />
26.83<br />
26.93<br />
26.97<br />
27.00<br />
27.03<br />
26.94<br />
26.87<br />
27.20<br />
27.38<br />
27.45<br />
27.48<br />
87.46<br />
87.38<br />
87.38<br />
27.62<br />
27.65<br />
87.66<br />
27.57<br />
27.48<br />
27.49<br />
27.71<br />
87.96<br />
28.00<br />
28.10<br />
28.06<br />
27.92<br />
27.78<br />
27.69<br />
27.75<br />
27.60<br />
27.44<br />
27,23<br />
27.00<br />
26.75<br />
26.61<br />
26.88<br />
26.98<br />
27.04<br />
26.95<br />
26.87<br />
26.70<br />
26.64<br />
26. B9<br />
26.95<br />
-27.38<br />
28.80<br />
29.90<br />
soYse<br />
30.55<br />
31.04<br />
31.44<br />
31. SS<br />
31.61<br />
31.67<br />
31.97<br />
32.35<br />
32*. 86<br />
33.12<br />
33.21<br />
33.34<br />
-<br />
- -<br />
33.44<br />
33.59<br />
33.71<br />
33.92<br />
34.06<br />
34.22<br />
34.30<br />
34.22<br />
34.13<br />
34.11<br />
34.21<br />
34.11<br />
34.06<br />
53.97<br />
33.76<br />
33.56<br />
33.53<br />
33.61<br />
33.56<br />
33.44<br />
33. '55<br />
gS3.53<br />
g33.44<br />
g33.46<br />
g33.60<br />
g33.59<br />
33.87<br />
34.61<br />
35.05<br />
55.28<br />
.35.42<br />
35.52<br />
35.56<br />
35.69<br />
35.65<br />
35.66<br />
35.57<br />
35.53<br />
35.60<br />
35.57<br />
35.54<br />
35.41<br />
35.27<br />
35.11<br />
36.05<br />
35.11<br />
35.03<br />
35.04<br />
35.20<br />
35.87<br />
35.31<br />
35.37<br />
35.45<br />
35.49<br />
35.55<br />
36,67<br />
38.21<br />
36.58<br />
38.62<br />
38.74<br />
38.87<br />
-<br />
g From graph based on 4 _ ge readings dally.<br />
fete.- Add 400 feet to ol aln elevation above mean sea level.<br />
38.83<br />
3S.65<br />
38.38<br />
3S.15<br />
37.94<br />
37.87<br />
37.86<br />
37»96<br />
37.97<br />
37.86<br />
37.80<br />
37.80<br />
37.95<br />
37.96<br />
37.97<br />
37.89<br />
37.81<br />
37.76<br />
37.73<br />
37.81<br />
37.79<br />
37.78<br />
37.70<br />
37.55<br />
37.43<br />
37.38<br />
37.65<br />
37.69<br />
37.67<br />
37.66<br />
37.52<br />
37.40<br />
37.33<br />
37.3a<br />
37.27<br />
37.11<br />
36.98<br />
36.85<br />
36.74<br />
36.-7O<br />
37.08<br />
37.18<br />
37,19<br />
37.14<br />
37.1O<br />
37,03<br />
37,20<br />
37.82<br />
37.21<br />
37.20<br />
37AO<br />
36.98<br />
36.89<br />
36.65<br />
36.51<br />
36.44<br />
"36.30<br />
36.16<br />
35.98<br />
35.79<br />
35.67<br />
-<br />
35,63<br />
35.58<br />
35.60<br />
35.40<br />
35. 4E<br />
35.45<br />
35.50<br />
35.47<br />
35.39<br />
35. £5<br />
35.06<br />
34.85<br />
34.66<br />
34,33.<br />
34VS6<br />
34.78<br />
35.07<br />
S5.1'9<br />
35.13<br />
34.99<br />
34 .S3<br />
35.03<br />
35.03<br />
34.92.<br />
34.76<br />
34.66<br />
34.68<br />
34.58<br />
34.70<br />
34.69<br />
34.82<br />
Monthly elevation and contents, water year October 1944 to September 1945<br />
Date<br />
Dec. 31.............<br />
Calendar year 1944<br />
Jan. 31.............<br />
Sept. 30.............<br />
Mater year 1944-45<br />
Elevation<br />
(feet)t<br />
429.17<br />
427.69 -<br />
427.04<br />
426.89<br />
-<br />
427.10<br />
433.52<br />
435.52<br />
438.85<br />
437.47<br />
435.67<br />
434.89<br />
434.77<br />
438.02<br />
- -<br />
Contents<br />
(billions <strong>of</strong><br />
cubic feet)<br />
3.00<br />
2.48<br />
2.24<br />
2.20<br />
-<br />
2.26 --<br />
4.65<br />
5.61<br />
7.11<br />
6.48<br />
5.68<br />
5.34<br />
5.28<br />
6.73<br />
-<br />
' tor-<br />
Change in contents<br />
during month (equiva<br />
lent, second-feet)<br />
-194<br />
-93<br />
-13<br />
-39 -<br />
+22<br />
+988<br />
358<br />
579<br />
-835<br />
-309<br />
-127<br />
-82<br />
+559<br />
+H8<br />
t Elevation at 12 p.m.<br />
Time basis; Eastern war time up to 2 a.m., Sept. 30, 1945| eastern-<br />
standard tiae <strong>the</strong>reafter. To convert war time to standard tine, sub<br />
tract. 1 hour.<br />
34.90<br />
54.93<br />
34.88<br />
34.97<br />
35.18<br />
35.47<br />
36,76<br />
35.90<br />
35.98<br />
35.97<br />
35.93<br />
36. OE<br />
'35.97<br />
'35.84<br />
35.83<br />
35.85<br />
35.98<br />
35,92<br />
35.94<br />
35.89<br />
35.72<br />
35.56<br />
35.87<br />
36.28<br />
35.30<br />
35.41<br />
35.32<br />
35.23<br />
35.12<br />
34.99<br />
34.84<br />
Sept.<br />
54.73<br />
34, 1O<br />
34.'62<br />
34. SO<br />
34.83<br />
34.420<br />
34.60<br />
33.90<br />
33,91<br />
33.86<br />
33.87<br />
33.60<br />
35,47<br />
34.14<br />
35,10<br />
35,77<br />
37.0S<br />
38.72<br />
39.53<br />
39,64<br />
39.50<br />
39.85<br />
39. 4O<br />
39.44<br />
- 39.22<br />
38.85<br />
38.49<br />
38.86<br />
38.10<br />
38.06
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