Site Number: 405344079380201 - AR 109 Armstrong County Observation Well DESCRIPTION: Latitude 40°53'44.4", Longitude 79°38'02.1" NAD27 Armstrong County, Pennsylvania, Hydrologic Unit 05010009 Land surface altitude: 1,400 feet above sea level NGVD29. Well completed in "Pennsylvanian aquifers" (N300PNSLVN) national aquifer. Well completed in "ALLEGHENY GROUP" (324ALGN) local aquifer AVAILABLE DATA FROM NWISWeb: OPERATION: Record for this site is maintained by the USGS Pennsylvania Water Science Center Email questions about this site to Pennsylvania Water Science Center Water-Data Inquiries
Site StatisticsMost recent data value: 21.76 on 11/23/2009 Period of Record Monthly Statistics for 405344079380201 Depth to water level, feet below land surface
Month Average Monthly Minimum Monthly Median Average Monthly Maximum Number of Months Jan 16.84 20.29 23.13 7 Feb 17.84 20.28 22.42 7 Mar 15.99 18.46 20.91 7 Apr 16.75 18.49 21.02 8 May 18.21 19.10 19.99 7 Jun 17.72 20.77 22.40 8 Jul 20.07 21.69 22.01 8 Aug 20.96 22.06 22.60 7 Sep 19.47 22.40 23.00 7 Oct 21.01 22.73 29.52 8 Nov 18.06 22.39 25.57 7 Dec 18.33 20.01 23.67 7
Daily Groundwater Data Most recent Provisional daily data value: 21.76 on 11/23/09 Summary Statistics for Period of Continuous Record Depth to water level, feet below land surface Approved Daily Maximum Values Data Used in AnalysisBegin Date End Date Days % Complete 10/05/01 09/30/08 2,449 95 Max Level Mean Min Level 14.80 20.68 34.26
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Periodic Groundwater Data 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 11/01/01 07/09/09 46 Highest WL Date of Highest WL Lowest WL Date of Lowest WL 15.75 03/29/07 25.82 11/01/01
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Period of Record - All Data TypesSummary Statistics for Period of Record - All Data Types Depth to water level, feet below land surface Begin Date End Date Number of Values 10/05/01 11/23/09 2,895 Highest WL Date of Highest WL Lowest WL Date of Lowest WL 14.80 03/24/07 34.26 10/05/01
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