September Water Conditions Above Normal in Maryland, Delaware, and D.C.
U.S. Department of the Interior
U.S. Geological Survey
Wendy McPherson (email@example.com)
Maryland-Delaware-D.C. Water Science Center
5522 Research Park Drive
Baltimore, MD 21228
Updated: October 9, 2000
Streamflow and Groundwater levels in the Maryland-Delaware-D.C. region were above normal or in the upper part of the normal range for September, according to hydrologists at the U.S. Geological Survey (USGS) in Baltimore, Maryland. Average streamflow for several key sites ranged from 125 to 827 percent of the long-term average discharge.
Average streamflow into the Chesapeake Bay was 25 billion gallons per day (bgd), which is 21 percent above the long-term average for September. The Susquehanna and Potomac Rivers provided 49 percent of the total streamflow to the Chesapeake Bay, discharging 6.7 bgd and 5.5 bgd, respectively.
For the 2000 water year (October 1999 through September 2000), the average monthly inflow to the Chesapeake Bay was 45 bgd, which is 53 percent more than the 1999 water year (29 bgd). The water year begins October 1 each year and is used by hydrologists because it is the time when streamflows are generally lowest across the nation. Groundwater levels and soil moisture levels are also low then, because the replenishing rains of autumn usually have not begun.
Streamflow at the Potomac River near Washington, D.C. averaged 4.0 bgd, which is 111 percent above normal for September. Although streamflows increased 54 percent over the last water year from 3.7 bgd in 1999 to 5.7 bgd in 2000, the long-term streamflow average is 20 percent below the normal flow for the years of record.
Groundwater levels at the end of September remained in the normal to above-normal range in western and southern Maryland and in the normal range elsewhere in Maryland and Delaware. Monthly updates of Groundwater conditions for 32 key observation wells that encompass all counties of Maryland and Delaware can be found at http://md.water.usgs.gov/groundwater/.
Water storage in the Baltimore reservoir system increased during September to 67.89 billion gallons (89 percent of capacity).
In-depth information about USGS programs may be found on the USGS home page at http://www.usgs.gov/ and http://chesapeake.usgs.gov/chesbay/ for Chesapeake Bay activities. To receive the latest USGS news releases automatically by e-mail, send a request to firstname.lastname@example.org. Specify the listserver(s) of interest from the following names: water-pr; geologic-pr; hazards-pr; biological-pr; mapping-pr; products-pr; lecture-pr. In the body of the message write: subscribe (name of listserver) (your name). Example: water-pr joe smith.
** * USGS * * *
- 01-06-2006 Water Resources Plentiful at End of December 2005; Chesapeake Bay Flow Normal in 2005
- 07-06-2005 Water Levels Fall as Summer Arrives
- 04-06-2005 March 2005 Water Levels Near Normal
- 03-04-2005 Flow Below Normal in Potomac River and Chesapeake Bay
- 02-07-2005 January 2005 Water Levels Normal to Above Normal
- 01-07-2005 2004 Ends with Normal to Above Normal Water Levels
- 12-04-2004 Water Levels Remain Generally Above Normal
- 11-04-2004 Dry October Causes Water Levels to Drop
- 10-06-2004 Highest September Flow to the Chesapeake Bay Since 1937
- 09-03-2004 August Hurricanes Raise Water Levels in Southern Maryland
- 08-06-2004 Localized Flooding in Northeastern Maryland and Delaware in July
- 07-07-2004 Water Levels Normal to Above Normal in June
- 06-04-2004 Streams Return to Normal Levels in Maryland and Delaware during May 2004
- 05-06-2004 Streams Rise to Above Normal Levels in Maryland
- 04-07-2004 Streamflow and Groundwater Levels Fell in March 2004
- 03-04-2004 Streamflow and Groundwater Levels Normal to Above Normal in February 2004
- 02-04-2004 Cold, Dry January Leads to Drop in Water Levels
- 01-06-2004 Wettest Year Leads to Record-High Water Levels Including Third Highest Flow to Chesapeake Bay in December and 2003
- 12-04-2003 More Record-High Water Levels in November 2003
- 11-04-2003 Record High Groundwater Levels in October 2003
- 10-03-2003 Flow to Chesapeake Bay in Water Year 2003 Second Highest Since 1937
- 09-05-2003 Third Consecutive Month of High Flow into the Chesapeake Bay
- 08-06-2003 Flow into Chesapeake Bay near Record High Levels
- 07-07-2003 Record Breaking High Water Levels in Maryland and Delaware
- 06-06-2003 Streamflow and Groundwater Levels High in May
- 05-07-2003 April Water Levels Normal
- 04-05-2003 Water Levels High in March - Water Restrictions Lifted
- 03-05-2003 Exceptionally Wet February Leads to High Water Levels
- 02-06-2003 Maryland and Delaware Streamflow and Groundwater Levels Remain Normal in January 2003
- 01-07-2003 2002: A Record-Setting Year for Low Groundwater Levels - Water Levels Recover to Normal in December 2002
- 12-01-2002 Hydrologic Drought Wanes as Water Levels Rise
- 11-01-2002 Water Levels Rise Across Maryland and Delaware, But Drought Persists in Some Areas
- 10-03-2002 Water Levels Remain at Record-Setting Lows
- 09-05-2002 Groundwater in Parts of Maryland Reaches Lowest Levels Since 1962, Despite Late August Rains
- 08-06-2002 Drought Conditions Lead to 10 Record Low Monthly Groundwater Levels in July
- 07-03-2002 Record Low Water Levels Show the Effects of Long-Term Hydrologic Drought
- 06-04-2002 Groundwater Levels Reflect Long-Term Effects of Drought
- 05-02-2002 April Showers Not Enough to Raise Groundwater Levels
- 04-05-2002 The Drought in Full Bloom: Low Water Levels Result in Water Restrictions
- 12-03-2001 Record Low Water Levels Set in November
- 11-02-2001 Dry October Leads to Low Water Levels
- 10-05-2001 Water Levels Low in Northern Maryland
- 09-07-2001 Water Levels Stable in August
- 08-06-2001 High and Low Water Levels in July
- 07-06-2001 Water Levels Continued to Improve in June
- 06-06-2001 Needed Rain Helps Avert a Drought in May
- 05-08-2001 Water Levels Still Normal in April, but More Rain is Needed
- 04-05-2001 Spring Rains Help Water Levels
- 03-06-2001 Water Levels Improve, But Are Still Below Normal
- 02-06-2001 Streamflow Still Low in Maryland in January
- 01-05-2001 Streamflow to Chesapeake Bay in 2000 Reflects Dry Autumn
- 12-05-2000 Streamflow in Maryland Beginning to Show the Effects of Lack of Rain
- 11-07-2000 Despite Lack of Rain October Water Conditions near Normal
- 10-06-2000 September Water Conditions Above Normal in Maryland, Delaware, and D.C.
- 09-08-2000 August Water Conditions Above Normal in Maryland, Delaware, and D.C.
- 08-07-2000 July Water Conditions Continue Normal in Maryland, Delaware, and D.C.
- 07-07-2000 June Water Conditions Normal in Maryland, Delaware, and D.C.
- 06-06-2000 Water conditions begin to decline in Maryland, Delaware, and D.C.
- 05-05-2000 Water Conditions Continue to Improve in Maryland, Delaware, and D.C.
- 04-07-2000 Water Conditions Continue to Improve in Maryland, Delaware, and D.C.
- 03-07-2000 Water Conditions Improving in Maryland, Delaware, and D.C.
- 02-08-2000 January Streamflow and Groundwater Levels Still Low
- 01-06-2000 1999 Flow Into Chesapeake Bay Lowest Since 1960s Drought