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Groundwater levels for the Nation

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USGS 415954091440401 2015USGS GPW2

Linn County, Iowa
Latitude  41°59'54.7", Longitude  91°44'04.5" NAD83
Land-surface elevation 720.98 feet above NAVD88
The depth of the well is 55 feet below land surface.
The depth of the hole is 55 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
This well is completed in the Holocene Alluvium (111ALVM) local aquifer.
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Water-level
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Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
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Status
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Method of
measurement
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agency
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Water-level
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2015-09-1517:45 UTCm62610 714.15NGVD291TUSGSSA
2015-09-1517:45 UTCm62611 714.07NAVD881TUSGSSA
2015-09-1517:45 UTCm720196.91  1TUSGSSA
2015-09-2218:20 UTCm62610 712.72NGVD29PTUSGSSA
2015-09-2218:20 UTCm62611 712.64NAVD88PTUSGSSA
2015-09-2218:20 UTCm720198.34  PTUSGSSA
2016-03-1115:46 UTCm62610 720.62NGVD291TUSGSSA
2016-03-1115:46 UTCm62611 720.54NAVD881TUSGSSA
2016-03-1115:46 UTCm720190.44  1TUSGSSA
2016-04-1917:29 UTCm62610 717.33NGVD291TUSGSSA
2016-04-1917:29 UTCm62611 717.25NAVD881TUSGSSA
2016-04-1917:29 UTCm720193.73  1TUSGSSA
2016-06-2818:17 UTCm62610 718.67NGVD291TUSGSSA
2016-06-2818:17 UTCm62611 718.59NAVD881TUSGSSA
2016-06-2818:17 UTCm720192.39  1TUSGSSA
2016-10-2718:49 UTCm62610 709.25NGVD291TUSGSSA
2016-10-2718:49 UTCm62611 709.17NAVD881TUSGSSA
2016-10-2718:49 UTCm7201911.81  1TUSGSSA
2017-05-0219:15 UTCm62610 718.00NGVD291SUSGSSA
2017-05-0219:15 UTCm62611 717.92NAVD881SUSGSSA
2017-05-0219:15 UTCm720193.06  1SUSGSSA
2017-06-2214:00 UTCm62610 712.68NGVD291VUSGSSA
2017-06-2214:00 UTCm62611 712.60NAVD881VUSGSSA
2017-06-2214:00 UTCm720198.38  1VUSGSSA
2017-10-2618:02 UTCm62610 712.32NGVD291VUSGSSA
2017-10-2618:02 UTCm62611 712.24NAVD881VUSGSSA
2017-10-2618:02 UTCm720198.74  1VUSGSSA
2018-10-3017:10 UTCm62610 717.63NGVD291VUSGSSA
2018-10-3017:10 UTCm62611 717.55NAVD881VUSGSSA
2018-10-3017:10 UTCm720193.43  1VUSGSSA
2019-06-1412:59 UTCm62610 717.57NGVD291VUSGSSA
2019-06-1412:59 UTCm62611 717.49NAVD881VUSGSSA
2019-06-1412:59 UTCm720193.49  1VUSGSSA
2019-06-2013:55 UTCm62610 718.22NGVD291VUSGSSA
2019-06-2013:55 UTCm62611 718.14NAVD881VUSGSSA
2019-06-2013:55 UTCm720192.84  1VUSGSSA
2019-08-0817:03 UTCm62610 709.89NGVD291VUSGSSA
2019-08-0817:03 UTCm62611 709.81NAVD881VUSGSSA
2019-08-0817:03 UTCm7201911.17  1VUSGSSA
2019-11-0418:03 UTCm62610 715.93NGVD291TUSGSSA
2019-11-0418:03 UTCm62611 715.85NAVD881TUSGSSA
2019-11-0418:03 UTCm720195.13  1TUSGSSA
2019-11-0614:14 UTCm62610 715.78NGVD291TUSGSSA
2019-11-0614:14 UTCm62611 715.70NAVD881TUSGSSA
2019-11-0614:14 UTCm720195.28  1TUSGSSA
2019-11-0715:21 UTCm62610 714.82NGVD291TUSGSSA
2019-11-0715:21 UTCm62611 714.74NAVD881TUSGSSA
2019-11-0715:21 UTCm720196.24  1TUSGSSA
2019-11-1822:24 UTCm62610 712.37NGVD291TUSGSSA
2019-11-1822:24 UTCm62611 712.29NAVD881TUSGSSA
2019-11-1822:24 UTCm720198.69  1TUSGSSA
2020-03-0218:23 UTCm62610 710.09NGVD291TUSGSSA
2020-03-0218:23 UTCm62611 710.01NAVD881TUSGSSA
2020-03-0218:23 UTCm7201910.97  1TUSGSSA
2020-07-1018:37 UTCm62610 715.88NGVD291VUSGSSA
2020-07-1018:37 UTCm62611 715.80NAVD881VUSGSSA
2020-07-1018:37 UTCm720195.18  1VUSGSSA
2020-09-2517:07 UTCm62610 710.31NGVD291TUSGSSA
2020-09-2517:07 UTCm62611 710.23NAVD881TUSGSSA
2020-09-2517:07 UTCm7201910.75  1TUSGSSA
2020-12-2118:40 UTCm62610 702.96NGVD291VUSGSSA
2020-12-2118:40 UTCm62611 702.88NAVD881VUSGSSA
2020-12-2118:40 UTCm7201918.10  1VUSGSSA
2021-03-3015:20 UTCm62610 713.65NGVD291VUSGSSA
2021-03-3015:20 UTCm62611 713.57NAVD881VUSGSSA
2021-03-3015:20 UTCm720197.41  1VUSGSSA
2021-06-1014:07 UTCm62610 711.23NGVD291TUSGSSA
2021-06-1014:07 UTCm62611 711.15NAVD881TUSGSSA
2021-06-1014:07 UTCm720199.83  1TUSGSSA
2021-06-2320:54 UTCm62610 710.73NGVD291VUSGSSA
2021-06-2320:54 UTCm62611 710.65NAVD881VUSGSSA
2021-06-2320:54 UTCm7201910.33  1VUSGSSA
2021-10-2919:58 UTCm62610 709.76NGVD291VUSGSSP
2021-10-2919:58 UTCm62611 709.68NAVD881VUSGSSP
2021-10-2919:58 UTCm7201911.30  1VUSGSSP
2022-02-0118:57 UTCm62610 706.11NGVD291VUSGSSP
2022-02-0118:57 UTCm62611 706.03NAVD881VUSGSSP
2022-02-0118:57 UTCm7201914.95  1VUSGSSP
2022-07-2215:11 UTCm62610 709.29NGVD291VUSGSSP
2022-07-2215:11 UTCm62611 709.21NAVD881VUSGSSP
2022-07-2215:11 UTCm7201911.77  1VUSGSSP
2022-10-2017:35 UTCm62610 709.26NGVD291VUSGSSP
2022-10-2017:35 UTCm62611 709.18NAVD881VUSGSSP
2022-10-2017:35 UTCm7201911.80  1VUSGSSP
2023-03-1716:39 UTCm62610 713.97NGVD291VUSGSSP
2023-03-1716:39 UTCm62611 713.89NAVD881VUSGSSP
2023-03-1716:39 UTCm720197.09  1VUSGSSP
2023-06-1416:53 UTCm62610 708.15NGVD291VUSGSSP
2023-06-1416:53 UTCm62611 708.07NAVD881VUSGSSP
2023-06-1416:53 UTCm7201912.91  1VUSGSSP
2023-07-0517:00 UTCm62610 710.77NGVD291VUSGSSP
2023-07-0517:00 UTCm62611 710.69NAVD881VUSGSSP
2023-07-0517:00 UTCm7201910.29  1VUSGSSP
2023-07-2020:22 UTCm62610 710.86NGVD291VUSGSSP
2023-07-2020:22 UTCm62611 710.78NAVD881VUSGSSP
2023-07-2020:22 UTCm7201910.20  1VUSGSSP
2023-09-2519:18 UTCm62610 701.41NGVD291VUSGSSP
2023-09-2519:18 UTCm62611 701.33NAVD881VUSGSSP
2023-09-2519:18 UTCm7201919.65  1VUSGSSP
2023-12-1220:30 UTCm62610 696.76NGVD291VUSGSSP
2023-12-1220:30 UTCm62611 696.68NAVD881VUSGSSP
2023-12-1220:30 UTCm7201924.30  1VUSGSSP
2024-03-2514:49 UTCm62610 699.75NGVD291VUSGSSP
2024-03-2514:49 UTCm62611 699.67NAVD881VUSGSSP
2024-03-2514:49 UTCm7201921.31  1VUSGSSP
2024-05-1015:34 UTCm62610 721.35NGVD291VAK001AP
2024-05-1015:34 UTCm62611 721.27NAVD881VAK001AP
2024-05-1015:34 UTCm72019-0.29  1VAK001AP
2024-06-1015:40 UTCm62610 719.34NGVD291VUSGSSP
2024-06-1015:40 UTCm62611 719.26NAVD881VUSGSSP
2024-06-1015:40 UTCm720191.72  1VUSGSSP
2024-06-1718:45 UTCm62610 711.89NGVD291VUSGSSP
2024-06-1718:45 UTCm62611 711.81NAVD881VUSGSSP
2024-06-1718:45 UTCm720199.17  1VUSGSSP
2024-06-2018:19 UTCm62610 712.42NGVD291VUSGSSP
2024-06-2018:19 UTCm62611 712.34NAVD881VUSGSSP
2024-06-2018:19 UTCm720198.64  1VUSGSSP
2024-08-0717:04 UTCm62610 713.47NGVD291VUSGSSP
2024-08-0717:04 UTCm62611 713.39NAVD881VUSGSSP
2024-08-0717:04 UTCm720197.59  1VUSGSSP

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
StatusPPumping
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
Measuring agencyAK001Alaska Department of Transportation and Public Facilities
Measuring agencyUSGSU.S. Geological Survey
Source of measurementAReported by another government agency (do not use "A" if reported by owner, use "O").
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.
Water-level approval statusPProvisional data subject to revision.