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Groundwater Watch

Site Number: 421250071090901 - MA-DDW 231 DEDHAM, MA

Groundwater
Watch Help Page

DESCRIPTION:: Latitude 42°12'50", Longitude 71°09'09" NAD27
Norfolk County, Massachusetts, Hydrologic Unit 01090001; Land surface altitude: 65.00 feet above sea level NGVD29.
Well completed in "Sand and gravel aquifers (glaciated regions)" (N100GLCIAL) national aquifer.
Well completed in "TILL" (112TILL) local aquifer

AVAILABLE DATA FROM NWISWeb:

Field ground-water-level measurements
Additional Data Sources	Begin Date	End Date	Count
Annual Water-Data Report (pdf) offsite	2005	2008	4

OPERATION:: Record for this site is maintained by the USGS Massachusetts Water Science Center; Email questions about this site to Massachusetts Water Science Center Water-Data Inquiries

Site Statistics

Monthly statistics plot for 421250071090901

Most recent data value: 7.11 on 11/23/2009
Period of Record Monthly Statistics for 421250071090901
Depth to water level, feet below land surface
All Approved Continuous & Periodic Data Used In Analysis
Note: Bold values in the table indicate closest statistic to the most recent data value.
Month Lowest
Level 10th
%ile 25th
%ile 50th
%ile 75th
%ile 90th
%ile Highest
Level Number
of
Years
Jan 11.36 8.03 7.17 6.12 4.74 4.37 2.67 43
Feb 8.88 7.93 6.20 5.23 4.59 3.60 3.20 41
Mar 7.80 5.58 5.34 4.61 3.82 3.05 2.45 43
Apr 8.48 6.83 5.94 4.65 3.86 3.45 3.29 45
May 8.35 7.99 6.64 5.87 5.04 4.50 3.78 44
Jun 10.57 9.69 8.77 8.01 5.88 4.82 3.82 45
Jul 12.51 11.70 10.76 9.56 7.91 7.26 4.89 45
Aug 13.82 13.09 11.77 10.35 9.38 8.52 6.45 44
Sep 14.96 13.61 12.31 11.15 10.35 9.01 7.51 44
Oct 15.95 13.21 12.58 10.62 8.77 6.67 4.65 43
Nov 14.21 12.47 10.16 7.99 6.13 5.16 4.63 45
Dec 13.07 9.93 7.44 5.65 4.69 3.73 3.55 41

Statistics Options

View month/year statistics

Periodic Groundwater Data

Groundwater hydrograph for well 421250071090901

Summary Statistics for Period of Record Periodic Water Levels

Depth to water level, feet below land surface

Approved Periodic Water Level Values

Begin Date

End Date

Number of Values

11/01/64

11/23/09

534

Highest WL	Date of Highest WL	Lowest WL	Date of Lowest WL
2.45	03/24/78	15.95	10/28/97

	Groundwater Levels Options
	View NWISWeb Groundwater levels page
	View annual monthly statistics for all data types
	Download Groundwater levels in text format

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URL: http://groundwaterwatch.usgs.gov/AWLSites.asp
Page Contact Information: OGW Webmaster
Last update: Monday, September 14, 2009 at 11:44