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SURFACE WATER SUPFLY of the UNITED STATEP

SURFACE WATER SUPFLY of the UNITED STATEP

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JAMS RIVER BASIH<br />

Swift Creek near Chester, Va.<br />

,<br />

Location.- Chain gage, lat. 37°18'55", long. 77°29'40", at Bradley Brtdge, H Biles dcwnstW&afc<br />

from Second Branch, 3 miles upstream from Prank Branch, and 4 -railes southwest .<br />

<strong>of</strong> Chester, Chesterfield County. ' s ' " .<br />

Drainage area.- 143 square miles. .<br />

Records ...available..- September to Dacember 194S, June 1944 to September 1945.<br />

Extremes.- Maximum discharge during year, 13,800 second-feet July 18 (gage height, 20.0<br />

fee'tY from floodnarks): minium observed, 8 second-foot July 2 (gage height, 1.51<br />

feet).<br />

1943-45: HaxiauBB discharge, that <strong>of</strong> July 18, 1945; minima observed, 0.3 second-'<br />

foot .Sept. 19, 1943 (gage height, 1J.6 feet).<br />

Beaarte.- Records fair, bage read once dally. '<br />

Daj<br />

1<br />

2 3<br />

4 8<br />

6<br />

7 89<br />

10<br />

11<br />

12<br />

13<br />

14<br />

18<br />

16<br />

17<br />

18<br />

19<br />

20<br />

21<br />

22<br />

23<br />

24<br />

25<br />

26<br />

27<br />

28<br />

29<br />

30<br />

31<br />

Oct.<br />

106<br />

86<br />

45<br />

33<br />

29<br />

28<br />

26<br />

22<br />

18<br />

16<br />

14<br />

15<br />

14<br />

14<br />

. alS<br />

IS<br />

12<br />

12<br />

a!2<br />

e40<br />

,240<br />

in<br />

130<br />

73<br />

60<br />

42<br />

36<br />

31<br />

29<br />

28<br />

86<br />

Rating tattle, *a««r year 1944-45 (gage height, la feet, and dlaehargo,<br />

in second-feet)<br />

1.5<br />

8 '<br />

3.5 160 13.0 2,180<br />

1.7 14 4.0 816 17.0 3,680<br />

2.0 28 5.0 344 SO.'O 4,900<br />

2.3 48 6.0 502 23.0 6,800<br />

2.6 75 7.0 687 26.0 9,500<br />

3.0 110 10.0 1,550<br />

Discharge, in seoomd-feet, water,year October 1944 to Septenbsr 1945<br />

Hov. Dec. Jan. ' Feb. Mar. Apr. May June auly Aug.<br />

26<br />

26<br />

26<br />

26<br />

26<br />

436<br />

330<br />

193<br />

130<br />

105<br />

140<br />

al80<br />

264<br />

303<br />

130<br />

64<br />

64<br />

a 60<br />

56<br />

68<br />

228<br />

193<br />

182<br />

182<br />

195<br />

64<br />

60<br />

68<br />

64<br />

60<br />

'91<br />

78<br />

126<br />

204<br />

in<br />

120<br />

91<br />

78<br />

86<br />

54<br />

11<br />

9<br />

12<br />

IS<br />

17<br />

in<br />

3,30<br />

: 100<br />

: .as<br />

126<br />

24 ><br />

24<br />

24<br />

24<br />

33<br />

34<br />

30<br />

29<br />

27<br />

26<br />

26<br />

26<br />

24<br />

24<br />

30<br />

34<br />

32<br />

30<br />

29<br />

26<br />

24<br />

36<br />

667<br />

591<br />

573<br />

-<br />

Month<br />

96<br />

86<br />

216<br />

344<br />

36S<br />

216<br />

303<br />

316<br />

262<br />

160<br />

126<br />

U5<br />

too<br />

96<br />

.82<br />

78<br />

»73<br />

66<br />

64<br />

64<br />

64<br />

60<br />

86<br />

140<br />

ISO<br />

allO<br />

105<br />

a200<br />

373<br />

a350<br />

344<br />

228<br />

in<br />

in<br />

216<br />

a200<br />

358<br />

403<br />

330<br />

216<br />

182<br />

a!60<br />

150<br />

ISO<br />

ISO<br />

116<br />

1O6<br />

alOO<br />

96<br />

96<br />

86<br />

82<br />

October ..........................<br />

HoveMber<br />

Deoeafcer.. .......................<br />

Calendar year ............<br />

January .............',............<br />

February ...-................,.:...<br />

March... ...... ..................<br />

April ............................<br />

May.... ...........................<br />

Juj» .............................<br />

Jaly .............................<br />

September . ........................<br />

Water year 1944-46 ............<br />

73<br />

68<br />

73<br />

78<br />

73<br />

68<br />

64<br />

252<br />

468<br />

435<br />

240<br />

193<br />

51§<br />

516<br />

228<br />

264<br />

435<br />

831<br />

789<br />

403<br />

303<br />

264<br />

a240<br />

' _ _-<br />

Second-<br />

foot-days<br />

1,419<br />

2,576<br />

4,995<br />

-<br />

6,144<br />

6,786<br />

4,467<br />

3,509<br />

7,929<br />

1,292<br />

24,269<br />

1,729<br />

7,625<br />

72,758<br />

530<br />

358<br />

264<br />

252<br />

in<br />

150<br />

130<br />

IBS<br />

120<br />

115<br />

no<br />

106<br />

125<br />

125<br />

110<br />

allO<br />

110<br />

alOO<br />

82<br />

78<br />

75<br />

a70,<br />

68<br />

a 66<br />

64<br />

78<br />

UaximuB<br />

240<br />

. 667<br />

435<br />

-<br />

403<br />

831<br />

368<br />

344<br />

1,600<br />

120<br />

9,600<br />

188<br />

3,200<br />

9,500<br />

49<br />

47<br />

46<br />

47<br />

46<br />

44<br />

60<br />

60<br />

47<br />

75<br />

64<br />

64<br />

i!44 iSOS<br />

193<br />

140<br />

] L15<br />

86<br />

3.82<br />

240<br />

^Sr<br />

ai<br />

2<br />

'S 04<br />

a] L40<br />

96<br />

-<br />

126<br />

96<br />

96<br />

91<br />

78<br />

82<br />

82<br />

68<br />

Sj8<br />

68<br />

100<br />

290<br />

648<br />

468<br />

262<br />

140k<br />

106<br />

73<br />

64<br />

100<br />

1,600<br />

1,650<br />

.837<br />

264<br />

in'<br />

Miniaua<br />

12<br />

24<br />

60<br />

- .<br />

82<br />

56<br />

64<br />

44<br />

62<br />

13 9<br />

16<br />

16<br />

9<br />

Mean<br />

49<br />

46<br />

49<br />

65<br />

64<br />

47<br />

50<br />

38<br />

31<br />

26<br />

23<br />

18<br />

34<br />

7S<br />

48<br />

64<br />

46<br />

S&<br />

20<br />

18<br />

16<br />

14<br />

13<br />

46.6<br />

86.9<br />

161<br />

-<br />

" IsY""<br />

242<br />

144<br />

117<br />

266<br />

43.1<br />

783<br />

66.8<br />

264<br />

199<br />

3*<br />

27<br />

64<br />

a 40<br />

29<br />

20<br />

13<br />

12<br />

.14<br />

368<br />

40£.<br />

1,S80<br />

9,600<br />

6,100<br />

2,370<br />

897<br />

344<br />

877<br />

193<br />

150<br />

160<br />

493.<br />

4S8<br />

a480<br />

373<br />

816<br />

Per square<br />

0.3SC<br />

*"- 'ft*<br />

-<br />

1.38<br />

1.69<br />

1.01<br />

.818<br />

1.7*<br />

.302<br />

5.48<br />

.380<br />

1.78<br />

1.39<br />

82<br />

82<br />

86<br />

73<br />

64<br />

46<br />

a 40<br />

37<br />

37<br />

36<br />

32<br />

34<br />

33<br />

28<br />

26<br />

* 25<br />

« Si<br />

S3<br />

%4<br />

64<br />

36<br />

26<br />

22<br />

SO<br />

18<br />

16<br />

Sept.<br />

16<br />

31<br />

29<br />

S3.<br />

20<br />

24<br />

89<br />

' aB5<br />

26<br />

262<br />

66<br />

34<br />

86<br />

84 i<br />

S3<br />

17i*<br />

290<br />

3,800<br />

1,680<br />

408<br />

eie<br />

140<br />

106<br />

aS5<br />

sTO<br />

116<br />

216<br />

.160<br />

2fl*<br />

Run<strong>of</strong>f in<br />

inches<br />

a Ho gage -height record; discharge computed on basis <strong>of</strong> records for Balling Creek nee" Brewrys<br />

Bluff, i<br />

e Oage reading not representative <strong>of</strong> mean for day; discharge computed on basis <strong>of</strong> gra^h <strong>of</strong> gam<br />

readings and records for Palling Creek near Drewrys Bluff.<br />

1*4wilk tlMtt4a . V%tta*&im Uftam 4>4wA «n% +TA O AW. (3Avw»v ' %Tk 'IQAK.* BMM^-AWV. «*.tv.«4MWI *-4«ntt 4.VkA«MmM>AM-<br />

Time baala; XBaatern was* time up to 2 a.m., Sept: SO, '1946} eastern standard<br />

*o ooWertwar tine to standard time, subtract 1 hour.<br />

0.37<br />

.67<br />

1.30<br />

- .<br />

1.90<br />

1.78<br />

1.16<br />

.01<br />

- 8*§»<br />

6.32<br />

.46<br />

1.96,<br />

18.92

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