Stream Conditions Biological and Chemical Monitoring Networks

Sites Sampled Between
(Move sliders to set time period of interest)

Site Type:
Include Fixed Sites fixed sites icon, square
Include Flexible Sites flexible sites icon, circle

Filter sites by name:

(Click blue bar to show/hide)

Major Watersheds

(slide to change opacity)

Schuylkill

Delaware

Christina

Chesapeake

Susquehanna

Groundwater status explanation:

Station List

Active Filters
Sample years:
Fixed Sites: yes
Flexible Sites: yes
Name filter:

CHESTER COUNTY OBSERVATION WELL NETWORK - REPORT FOR SEPTEMBER 2022 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
Well Number	Municipal Location	Current Month Depth to Water and Current Status		Drought Emergency	Drought Warning	Drought Watch	Median
CH 2*	Honey Brook	10.96	Below Median	12.97	12.07	11.50	10.65
CH 38*	New Garden	12.74	Drought Watch	13.26	12.79	12.56	10.38
CH 210	Tredyffrin	23.84	Below Median	26.19	25.79	25.07	23.20
CH 254	East Nottingham	22.91	Below Median	27.55	26.50	24.24	22.44
CH 1201	West Sadsbury	5.73	Above Median	7.80	7.30	6.79	6.18
CH 1229*^	Upper Uwchlan	35.25	Above Median	37.47	36.97	36.06	35.38
CH 1247*	West Vincent	27.63	Above Median	33.69	33.29	32.23	30.70
CH 1387	Thornbury	35.06	Above Median	37.57	36.63	36.13	35.19
CH 1571	East Vincent	9.69	Above Median	11.09	10.75	10.56	10.25
CH 1921	New Garden	43.11	Above Median	48.68	48.47	45.89	42.95
CH 2273	West Brandywine	2.69	Drought Watch	4.43	3.31	2.19	1.01
CH 2313	East Whiteland	12.81	Drought Watch	15.47	14.17	11.91	10.12
CH 2328	East Nantmeal	3.03	Above Median	5.70	5.09	4.54	3.69
CH 2457	East Goshen	20.84	Above Median	23.55	23.10	22.72	21.92
CH 2561	Charlestown	89.10	No Statistics	XXX	XXX	XXX	XXX
CH 2584	East Marlborough	23.16	No Statistics	XXX	XXX	XXX	XXX
CH 3289	Tredyffrin	20.22	Above Median	31.39	30.46	27.93	25.24
CH 5422	Londonderry	19.88	No Statistics	XXX	XXX	XXX	XXX
CH 6513	North Coventry	17.25	No Statistics	XXX	XXX	XXX	XXX
CH 6516	Pennsbury	3.41	No Statistics	XXX	XXX	XXX	XXX
CH 6517	West Caln	64.54	No Statistics	XXX	XXX	XXX	XXX
CH 6518	Lower Oxford	22.70	No Statistics	XXX	XXX	XXX	XXX
CH 7007	Wallace	33.56	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 - 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
^Recent activity at the well site may have altered the hydrologic conditions as they apply to the drought triggers.
Wells CH 2273, CH 2328 and CH 6516 can have ground water levels above the land surface (known as an artesian well); a (-) sign indicates a water level 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: 9/23/22