Water Resources Review – November 2002

Updated: December 3, 2002

See definitions.

Maryland And Delaware. –  Streamflow increased throughout the entire bi-state area.  In Western Maryland and on the upper Potomac River,  streamflow increased, and moved from the normal into the above normal range. In Central Maryland, flows increased, and remained in the normal range. Flows on the lower Potomac River increased,  moving from the normal into the above normal range. In northeast Maryland, flows increased, and remain in the normal range. On the Eastern Shore, streamflow increased, and moved from the normal into the above normal range.

Contents of the Baltimore reservoir system increased, and near month's end were 52 percent of capacity. End of month contents = 39,430 million gallons.  Contents of the Triadelphia  and Duckett reservoirs, near month’s end, were 6.09 billion gallons, 57 percent of capacity.

Surface Water Data ---November 2002

[% = percent; ft³/s = cubic feet per second; in. = inches; Date = day of month;
1 = Includes diversions for water supply; * = Above normal range; # = Below normal range]

Station name

Discharge

Runoff
(in.)

Cumulative runoff

Maximum
(ft3/s)
---
(Date)

Minimum
(ft3/s)
---
(Date)

Mean
(ft3/s)

Percent of
normal

Total
(in.)

Percent of
normal

Departure
(in.)

Potomac R at
Paw Paw, W.Va.

*5040

264

1.80

2.47

206

+1.27

9150
(18)

   2490
     (5)

Seneca C at
Dawsonville, Md.

  126

140

1.40

2.20

129

+0.50

592
(17)

50
(5)

Potomac R near
Washington, D.C. 1

*15800

193

1.53

2.05

158

+0.75

29200
(19)

8910

(7)

Deer C near 
Rocks, Md.

 99.2

103

1.17

1.97

104

+0.07

358
(17)

54
(10)

Choptank R near
Greensboro, Md.

*345

583

3.40

4.22

422

+3.22

    1550
      (18)

    122
     (5)

Normal is defined as the median (50th percentile) of long-term monthly-mean discharge or monthly total runoff. The normal range is defined as discharge or runoff falling between the 75th and 25th percentiles of long-term records. 

Ground Water Data – November  2002

Detailed ground-water information for Maryland and Delaware is available at http://md.water.usgs.gov/groundwater/.

Potomac River near Washington, D.C.  -  November 2002

Last day: 9,530 cubic feet per second (estimated).
Reference period: 1971 to 2000.

Chesapeake Bay – November 2002

Total flow into the Chesapeake Bay was about 57.2 billion gallons per day, (BGD) 147 percent of average. November average: 38.9 BGD.

 

The three largest rivers flowing into the Chesapeake Bay contributed about 85 percent of total inflow in November, with individual contributions of:

River

Percentage of total inflow
to Chesapeake Bay

Susquehanna River

46

Potomac River

23    

James River

                 16

Total

85

Other rivers

15

.

 

Period of record: 1937 to Present. 

Related Information

Reports for previous months

Monthly Water Conditions in the Chesapeake Bay Region

National Water Conditions

Definitions of terms

Northeast Regional Climate Center (from Cornell University)

Monthly Climate Summary

For additional information, contact:

info@md.water.usgs.gov or call 410-238-4200.