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Site Number: 384849090092001 - Columbia Bottoms


 
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DESCRIPTION:
Latitude 38°48'46.6", Longitude 90°09'08.7"   NAD83
St Louis County, Missouri, Hydrologic Unit 07140101
Well depth: 104 feet
Hole depth: 104 feet
Land surface altitude: 422feet above NGVD29.
Well completed in "Mississippi River Valley alluvial aquifer" (N100MSRVVL) national aquifer.
Well completed in "Holocene Alluvium" (111ALVM) local aquifer
AVAILABLE DATA:
Data Type Begin Date End Date Count
 Current / Historical Observations     2007-10-01  2015-08-01  
 Daily Data
    Depth to water level, feet below land surface  1957-09-30  2015-07-31  11096 
 Daily Statistics 
    Depth to water level, feet below land surface  1957-09-30  2013-05-27 10306 
 Monthly Statistics 
    Depth to water level, feet below land surface  1957-09  2013-05  
 Annual Statistics 
    Depth to water level, feet below land surface  1957  2013  
 Field groundwater-level measurements 1957-06-24  2015-01-14  4 

Additional Data Sources

Begin Date

End Date

Count
 Groundwater Watch  **offsite** 1957  2015  11038 
OPERATION:
Record for this site is maintained by the USGS Missouri Water Science Center
Email questions about this site toMissouri Water Science Center Water-Data Inquiries
Site Statistics

Most recent data value: 7.41 on 8/2/2015
Period of Record Monthly Statistics for 384849090092001
Depth to water level, feet below land surface
All Approved Continuous & Periodic Data Used In Analysis
Note: Highlighted values in the table indicate closest statistic to the most recent data value.
MonthLowest
Median
10th
%ile
25th
%ile
50th
%ile
75th
%ile
90th
%ile
Highest
Median
Number
of
Years
Jan  26.94  25.57  24.06  21.40  19.22  13.38  10.4250
Feb  27.33  25.36  24.23  21.67  16.88  12.78   7.9546
Mar  26.50  25.24  23.91  20.21  16.68  11.05   3.2245
Apr  25.37  24.00  21.88  17.79  12.17   7.78  -4.9747
May  24.27  22.77  19.88  13.81  10.69   6.91   3.6447
Jun  24.09  21.73  18.73  13.68  11.81   8.08   6.2547
Jul  22.96  22.34  19.24  16.28  12.96   8.30   1.0747
Aug  26.23  23.18  20.67  18.78  16.60  14.16   8.0250
Sep  27.77  23.71  22.02  20.23  18.49  16.40  11.3150
Oct  29.03  23.57  22.57  20.93  19.55  15.74  11.8251
Nov  28.30  24.31  23.30  21.12  18.71  15.41   8.3951
Dec  26.75  25.03  23.25  21.07  19.12  13.98   8.9951
As of 8/1/2015 00:06-2
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Daily Groundwater Data

Most recent Provisional daily data value: 7.41 on 08/02/15
Summary for Period of Continuous Record
Depth to water level, feet below land surface
Approved Daily Mean Values Data Used in Analysis
Begin
Date
End Date Days%
Complete
09/30/5705/27/13 10,30650
Lowest
Level
5th
%ile
10th
%ile
25th
%ile
50th
%ile
75th
%ile
90th
%ile
95th
%ile
Highest
Level
29.3024.6923.8321.9019.2314.4710.078.31-5.08

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Periodic Groundwater Data


Summary for Period of Record Periodic Water Levels
Depth to water level, feet below land surface
Approved Periodic Water Level Values
Begin DateEnd DateNumber of Values
06/24/5701/14/154
Highest WLDate of Highest WLLowest WLDate of Lowest WL
13.307/10/1417.606/24/57

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Period of Record - All Data Types

Summary for Period of Record - All Data Types
Depth to water level, feet below land surface
Begin DateEnd DateNumber of Values
06/24/5708/02/1511,828
Highest WLDate of Highest WLLowest WLDate of Lowest WL
-5.0804/24/7329.310/19/83

Period of Record Options

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