CHESTER COUNTY OBSERVATION WELL NETWORK - REPORT FOR JUNE 2008
Levels Indicated are Depth to Water in Feet Below Land Surface

 Well
Number

 Municipal
Location

Current Month
Depth to Water
and Current Status

Reference Data for Current Status

Drought Emergency

Drought Warning

Drought Watch

Median

CH 2*

Honey Brook

 8.25

 Above Median

9.86

9.7

9.06

8.48

CH 10*

West Marlborough

 12.95

 Above Median

14.9

14.75

14.12

12.98

CH 12

West Bradford

 35.73

 Below Median

38.5

37.84

35.76

34.56

CH 38*

New Garden

 8.13

 Below Median

11.25

10.29

8.84

7.51

CH 89

East Whiteland

 140.44

 No Statistics

XXX

XXX

XXX

XXX

CH 210

Tredyffrin

 21.27

 Below Median

23.9

22.99

21.63

21

CH 254

East Nottingham

 22.75

 Below Median

26.22

24.79

23.95

21

CH 1201

West Sadsbury

 5.32

 Above Median

6.9

6.28

6

5.33

CH 1229*

Upper Uwchlan

 36.55

 Below Median

39.95

39.72

38.05

35.84

CH 1247*

West Vincent

 28.31

 Above Median

31.03

30.52

29.25

28.49

CH 1387

Thornbury

 32.85

 Above Median

36.38

35.71

34.66

32.95

CH 1571

East Vincent

 6.7

 Above Median

9.06

8.84

8.64

7.25

CH 1921

New Garden

 42.5

 Below Median

48.02

46.43

44.65

40.29

CH 2273

West Brandywine

 -0.7

 Below Median

1.99

1.54

-0.37

-0.97

CH 2313

East Whiteland

 8.55

 Drought Watch

11.18

10.47

6.87

5.54

CH 2328

East Nantmeal

 1.99

 Above Median

4.02

3.62

2.61

2.07

CH 2456

East Brandywine

 19.06

 Above Median

19.8

19.79

19.63

19.45

CH 2457

East Goshen

 19.37

 Below Median

21.3

21.15

20.14

19.02

CH 2561

Charlestown

 90.87

 No Statistics

XXX

XXX

XXX

XXX

CH 2584

East Marlborough

 20.21

 No Statistics

XXX

XXX

XXX

XXX

CH 2663

New Garden

 10.79

 Drought Warning

10.83

10.72

10.45

10.39

CH 3289

Tredyffrin

 21.45

 Above Median

24.35

23.16

22.5

21.93

CH 5422

Londonderry

 19.23

 No Statistics

XXX

XXX

XXX

XXX

CH 6513

North Coventry

 15.69

 No Statistics

XXX

XXX

XXX

XXX

CH 6516

Pennsbury

 -0.45

 No Statistics

XXX

XXX

XXX

XXX

CH 6517

West Caln

 61.53

 No Statistics

XXX

XXX

XXX

XXX

CH 6518

Lower Oxford

 21.72

 No Statistics

XXX

XXX

XXX

XXX

CH 6519

Newlin

 

 No Statistics

XXX

XXX

XXX

XXX

CH 7007

Wallace

 28.13

 No Statistics

XXX

XXX

XXX

XXX

Current Status Explanation
Above Median - Depth to water level < 50th percentile
Below Median - Depth to water level > 50th and < 75th percentile
Drought Watch - Depth to water level > 75th and < 90th percentile
Drought Warning - Depth to water level > 90th and < 95th percentile
Drought Emergency - Above Median (Depth to water level > 95th percentile
No Statistics - Statistics not available for this well

Median shows the middle of the distribution and is less sensitive to extreme water levels, so it is more typical than the mean.

XXX = statistic not available for this well

*wells monitored for the Christina Basin Drought Management Plan

Wells CH 2273, CH 2328 and CH 6516 can have ground water flowing above the land surface (known as an artesian well); a (-) sign indicates water flowing above the land surface.

Percentiles shown were revised as of May 31, 2006 to reflect updated statistical analysis reported in the  U.S. Geological Survey report DS-292.

 Date Prepared: 06/24/08