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Groundwater levels for the Nation

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  • 381509076351401
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USGS 381509076351401 SM Dd 81

St. Mary'S County, Maryland
Latitude  38°15'22", Longitude  76°35'05" NAD83
Land-surface elevation 113 feet above NAVD88
The depth of the well is 810 feet below land surface.
The depth of the hole is 920 feet below land surface.
This well is completed in the Northern Atlantic Coastal Plain aquifer system (S100NATLCP) national aquifer.
This well is completed in the Upper Patapsco Aquifer In the Patapsco Formation (217PPSCU) local aquifer.
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Date Time
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Water-level
date-time
accuracy
?
 
Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
?
 
Status
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Method of
measurement
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Measuring
agency
?
 
Source of
measurement
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Water-level
approval
status
2008-05-0118:10 UTCm62610 -54.16NGVD291SMD006AA
2008-05-0118:10 UTCm62611 -55.26NAVD881SMD006AA
2008-05-0118:10 UTCm72019168.26  1SMD006AA
2008-09-2216:30 UTCm62610 -56.37NGVD291SMD006AA
2008-09-2216:30 UTCm62611 -57.47NAVD881SMD006AA
2008-09-2216:30 UTCm72019170.47  1SMD006AA
2008-09-2415:00 UTCm62610 -64.64NGVD29PTMD006AA
2008-09-2415:00 UTCm62611 -65.74NAVD88PTMD006AA
2008-09-2415:00 UTCm72019178.74  PTMD006AA
2009-04-3015:35 UTCm62610 -57.03NGVD291SMD006AA
2009-04-3015:35 UTCm62611 -58.13NAVD881SMD006AA
2009-04-3015:35 UTCm72019171.13  1SMD006AA
2009-09-2117:30 UTCm62610 -59.60NGVD291SMD006AA
2009-09-2117:30 UTCm62611 -60.70NAVD881SMD006AA
2009-09-2117:30 UTCm72019173.70  1SMD006AA
2010-04-2714:45 UTCm62610 -58.97NGVD291SMD006AA
2010-04-2714:45 UTCm62611 -60.07NAVD881SMD006AA
2010-04-2714:45 UTCm72019173.07  1SMD006AA
2010-10-0717:10 UTCm62610 -61.78NGVD291SMD006AA
2010-10-0717:10 UTCm62611 -62.88NAVD881SMD006AA
2010-10-0717:10 UTCm72019175.88  1SMD006AA
2011-05-1115:35 UTCm62610 -60.76NGVD291SMD006AA
2011-05-1115:35 UTCm62611 -61.86NAVD881SMD006AA
2011-05-1115:35 UTCm72019174.86  1SMD006AA
2011-09-2714:15 UTCm62610 -62.84NGVD291TMD006AA
2011-09-2714:15 UTCm62611 -63.94NAVD881TMD006AA
2011-09-2714:15 UTCm72019176.94  1TMD006AA
2012-04-1617:19 UTCm62610 -62.17NGVD291SMD006AA
2012-04-1617:19 UTCm62611 -63.27NAVD881SMD006AA
2012-04-1617:19 UTCm72019176.27  1SMD006AA
2012-09-2416:44 UTCm62610 -66.32NGVD291SMD006AA
2012-09-2416:44 UTCm62611 -67.42NAVD881SMD006AA
2012-09-2416:44 UTCm72019180.42  1SMD006AA
2013-04-1116:18 UTCm62610 -63.27NGVD291SMD006AA
2013-04-1116:18 UTCm62611 -64.37NAVD881SMD006AA
2013-04-1116:18 UTCm72019177.37  1SMD006AA
2013-09-1217:16 UTCm62610 -65.82NGVD291SMD006AA
2013-09-1217:16 UTCm62611 -66.92NAVD881SMD006AA
2013-09-1217:16 UTCm72019179.92  1SMD006AA
2014-04-2318:21 UTCm62610 -64.50NGVD291SMD006AA
2014-04-2318:21 UTCm62611 -65.60NAVD881SMD006AA
2014-04-2318:21 UTCm72019178.60  1SMD006AA
2014-09-2518:19 UTCm62610 -67.76NGVD291SMD006AA
2014-09-2518:19 UTCm62611 -68.86NAVD881SMD006AA
2014-09-2518:19 UTCm72019181.86  1SMD006AA
2015-04-2215:43 UTCm62610 -64.71NGVD291SMD006AA
2015-04-2215:43 UTCm62611 -65.81NAVD881SMD006AA
2015-04-2215:43 UTCm72019178.81  1SMD006AA
2015-09-1716:49 UTCm62610 -67.87NGVD291SMD006AA
2015-09-1716:49 UTCm62611 -68.97NAVD881SMD006AA
2015-09-1716:49 UTCm72019181.97  1SMD006AA
2016-04-2717:39 UTCm62610 -66.59NGVD291SMD006AA
2016-04-2717:39 UTCm62611 -67.69NAVD881SMD006AA
2016-04-2717:39 UTCm72019180.69  1SMD006AA
2016-09-1517:52 UTCm62610 -70.29NGVD291SMD006AA
2016-09-1517:52 UTCm62611 -71.39NAVD881SMD006AA
2016-09-1517:52 UTCm72019184.39  1SMD006AA
2017-04-2719:08 UTCm62610 -67.36NGVD291SMD006AA
2017-04-2719:08 UTCm62611 -68.46NAVD881SMD006AA
2017-04-2719:08 UTCm72019181.46  1SMD006AA
2017-09-2616:03 UTCm62610 -69.73NGVD291SMD006AA
2017-09-2616:03 UTCm62611 -70.83NAVD881SMD006AA
2017-09-2616:03 UTCm72019183.83  1SMD006AA
2018-04-2616:56 UTCm62610 -67.12NGVD291SMD006AA
2018-04-2616:56 UTCm62611 -68.22NAVD881SMD006AA
2018-04-2616:56 UTCm72019181.22  1SMD006AA
2018-10-0316:05 UTCm62610 -69.91NGVD291SMD006AA
2018-10-0316:05 UTCm62611 -71.01NAVD881SMD006AA
2018-10-0316:05 UTCm72019184.01  1SMD006AA
2019-04-2317:23 UTCm62610 -68.20NGVD291SMD006AA
2019-04-2317:23 UTCm62611 -69.30NAVD881SMD006AA
2019-04-2317:23 UTCm72019182.30  1SMD006AA
2019-09-2516:32 UTCm62610 -71.26NGVD291SMD006AA
2019-09-2516:32 UTCm62611 -72.36NAVD881SMD006AA
2019-09-2516:32 UTCm72019185.36  1SMD006AA
2020-10-0216:33 UTCm62610 -70.40NGVD291SMD006AA
2020-10-0216:33 UTCm62611 -71.50NAVD881SMD006AA
2020-10-0216:33 UTCm72019184.50  1SMD006AA
2021-04-2617:58 UTCm62610 -72.64NGVD291SMD006AA
2021-04-2617:58 UTCm62611 -73.74NAVD881SMD006AA
2021-04-2617:58 UTCm72019186.74  1SMD006AA
2021-09-1417:55 UTCm62610 -72.19NGVD291SMD006AA
2021-09-1417:55 UTCm62611 -73.29NAVD881SMD006AA
2021-09-1417:55 UTCm72019186.29  1SMD006AA
2022-04-2716:20 UTCm62610 -71.24NGVD291SMD006AA
2022-04-2716:20 UTCm62611 -72.34NAVD881SMD006AA
2022-04-2716:20 UTCm72019185.34  1SMD006AA
2022-09-2015:50 UTCm62610 -73.19NGVD291SMD006AA
2022-09-2015:50 UTCm62611 -74.29NAVD881SMD006AA
2022-09-2015:50 UTCm72019187.29  1SMD006AA
2023-04-1216:42 UTCm62610 -72.00NGVD291SMD006AA
2023-04-1216:42 UTCm62611 -73.10NAVD881SMD006AA
2023-04-1216:42 UTCm72019186.10  1SMD006AA
2023-09-1216:36 UTCm62610 -74.31NGVD291SMD006AA
2023-09-1216:36 UTCm62611 -75.41NAVD881SMD006AA
2023-09-1216:36 UTCm72019188.41  1SMD006AA
2024-04-1716:35 UTCm62610 -72.99NGVD291SMD006AA
2024-04-1716:35 UTCm62611 -74.09NAVD881SMD006AA
2024-04-1716:35 UTCm72019187.09  1SMD006AA
2024-09-2516:45 UTCm62610 -74.89NGVD291SMD006AP
2024-09-2516:45 UTCm62611 -75.99NAVD881SMD006AP
2024-09-2516:45 UTCm72019188.99  1SMD006AP

Explanation
SectionCodeDescription
Water-level date-time accuracymDate is accurate to the Minute
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
StatusPWater level was affected by pumping at the time of the measurement
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Measuring agencyMD006Maryland Geological Survey
Source of measurementAReported by another government agency (do not use "A" if reported by owner, use "O").
Water-level approval statusAApproved for publication -- Processing and review completed.
Water-level approval statusPProvisional data subject to revision.