Summary of water conditions in delaware
Download
1 / 12

Summary of Water Conditions in Delaware - PowerPoint PPT Presentation


  • 253 Views
  • Uploaded on

Summary of Water Conditions in Delaware. Presented to the Water Supply Coordinating Council September 24, 2009. Stefanie J. Baxter. Water Conditions Index for NCC August 2008 through August 2009. Factors Used in Calculating the Index 6-month antecedent precipitation

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Summary of Water Conditions in Delaware' - barto


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Summary of water conditions in delaware

Summary of Water Conditions in Delaware

Presented to the

Water Supply Coordinating Council

September 24, 2009

Stefanie J. Baxter


Water Conditions Index for NCC

August 2008 through August 2009

Factors Used in Calculating the Index

  • 6-month antecedent precipitation

  • Flow on the Brandywine River

  • Groundwater level in well Db24-18

  • Population of northern NCC

14

13.44

12

10

8

4.3

6

Drought Watch

Drought Warning

4

Drought Emergency

2

0

Aug-08

Sep-08

Oct-08

Nov-08

Dec-08

Jan-09

Feb-09

Mar-09

Apr-09

May-09

Jun-09

Jul-09

Aug-09


Precipitation at Wilmington

August 2008 – August 2009

Current 12-month

running surplus= 1.70 inches

Normal

Actual

Inches

Data provided by

City of Wilmington, DEOS, and NWS


Well db24 18 near ogletown january 2008 september 2009
Well Db24-18 Near OgletownJanuary 2008 – September 2009

Actual September water level = 12.10'

Drought Watch = 14.00 to 14.99'

Drought Warning = 15.00 to 15.99'

Drought Emergency = >16.00'


30-day moving average

through September 21, 2009 = 267.4 MGD

Brandywine Creek at Wilmington

April 1, 2009 – September 21, 2009

Drought Watch = 85 MGD

195 MGD

Data Source:

http://waterdata.usgs.gov

/de/nwis/


30-day moving average White Clay at Stanton (filter plant)

through September 21, 2009 = 156.2 MGD

White Clay Creek near Newark

April 1, 2009 – September 21, 2009

Drought Watch = 42 MGD

44 MGD

Data Source:

http://waterdata.usgs.gov

/de/nwis/


Precipitation at Dover

August 2008 – August 2009

Current 12-month

running surplus= 2.55 inches

Normal

Actual

Inches

Data provided by

Delaware Department

of Transportation


Well hb14 01 january 2008 september 2009
Well Hb14-01 January 2008 – September 2009

Actual September water level = 8.20'

Normal for September is between 6.79' and 9.07'


30-day moving average

through September 21, 2009 = 51.4 MGD

St. Jones River at Dover

April 1, 2009 – September 21, 2009

Mean flow for September = 20.2 MGD

8.4 MGD

Modified from:

http://waterdata.usgs.gov

/de/nwis/


Precipitation at Lewes

August 2008 – August 2009

Current 12-month

running surplus= 6.21 inches

Normal

Actual

Inches

Data provided by

City of Lewes


Well qe44 01 near trap pond january 2008 september 2009
Well Qe44-01 Near Trap PondJanuary 2008 – September 2009

Normal for September is between 8.90' and 11.30'

Actual September water level = 8.20 '


30-day moving average

through September 21, 2009 = 71.1 MGD

Nanticoke River near Bridgeville

April 1, 2009 – September 21, 2009

Mean flow for September = 50.3 MGD

48 MGD

Modified from:

http://waterdata.usgs.gov

/de/nwis/


ad