Water Resources Review – June 2001

Updated: June 30, 2001

See definitions.

Maryland And Delaware. -- Streamflow increased throughout most of the bi-state area. In Western Maryland and on the upper Potomac River, streamflow increased, and remained in the normal range. In Central Maryland, flows increased, and moved from the normal into the above-normal range. Flows on the lower Potomac River increased, and moved from the below-normal into the normal range. In northeast Maryland, flows decreased, and remain in the below-normal range. On the Eastern Shore, streamflow increased significantly, and moved from the normal into the above-normal range. Highest monthly and daily streamflow records for June were established at the index station on the Choptank River near Greensboro, Md.

Contents of the Baltimore reservoir system increased slightly, and near month's end were 99 percent of capacity. End of month contents = 75,500 million gallons.

Ground-water levels decreased from May to June throughout most of the bi-state area, although levels were in the normal or above-normal range for June. In western Maryland, ground-water levels fell, and remained in the above-normal range. In west-central Maryland, ground-water levels decreased, and remained in the normal range. In central Maryland, water levels decreased, and remained in the normal range. On the Eastern Shore, water levels rose, and remained in the above-normal range.

Surface Water Data -- June 2001

[% = 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.

3050

128

1.08

9.86

66

-5.04

11000
(7,8)

1200
(30)

Seneca C at
Dawsonville, Md.

*189

197

2.09

11.23

73

-4.07

1870
(7)

58
(30)

Potomac R near
Washington, D.C. 1

9940

107

0.96

8.51

62

-5.09

20800
(9,25)

5090
(21)

Deer C near 
Rocks, Md.

#81.0

65

0.96

10.90

69

-4.80

232
(23)

55 
(30)

Choptank R near
Greensboro, Md.

*439

620

4.33

18.32

117

+2.72

3820
(18)

80
(16)

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 – June  2001

Well number

Well name

Previous month

Reporting month

Date measured

Level
(feet below
land surface)

Date measured

Level
(feet below
land surface)

GA-Bc 1

Accident

05-30

12.57

06-28

13.88

WA-Be 2

Fort Frederick

05-30

30.24

06-28

31.61

MO-Eh 20

Fairland

05-30

12.08

06-28

12.73

Jd 42-03

Camden

05-30

5.37

06-28

4.84

 

Name

Date measured

Water level
(feet below
land surface)

Departure from average
(feet)

Change since previous month
(feet)

Change since previous year
(feet)

Last reversal

Change
(feet)

Date
(month, year)

Accident

06-28

13.88

+0.28

-1.31

+0.25

-1.31

June 2001

Fort Frederick

06-28

31.61

 -1.78

-1.37

-0.20

-6.04

Apr 2001

Fairland

06-28

12.73

-0.01

-0.65

-0.13

-0.65

June 2001

Camden

06-28

4.84

+1.25

+0.53

+1.65

+0.56

May 2001

Potomac River near Washington, D.C.  -  June 2001

Last day: 6190 cubic feet per second (estimated).
Reference period: 1971 to 2000.

Chesapeake Bay – June 2001

Total flow into the Chesapeake Bay was about 32.6 billion gallons per day, (BGD) 81 percent of average. June average: 40.1 BGD.

The three largest rivers flowing into the Chesapeake Bay contributed about 83 percent of total inflow in June, with individual contributions of:

River

Percentage of total inflow
to Chesapeake Bay

Susquehanna River

45

Potomac River

26

James River

                 12

Total

83

Other rivers

17

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.