USGS Water-Year Summary for Site 351111089512501

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	Available Parameters
	00010 Temperature, water(Max.,Mean,Med.,Min.)
	00095 Specific cond at 25C(Min.,Max.,Mean,Med.)
	00300 Dissolved oxygen(Max.,Mean,Med.,Min.)
	00400 pH(Max.,Min.,Med.)
	72019 Water level, depth LSD(Mean)
	99133 NO3+NO2,water,insitu(Med.)

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Water year 2024: 2024-10-01 to 2025-09-30

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USGS Water-Year Summary 2024

351111089512501 SH:Q-094

Other aquifers
Terrace Deposits

LOCATION - Lat 35°11'11.5", long 89°51'24.5" referenced to North American Datum of 1983, Shelby County, TN, Hydrologic Unit 08010210, behind McCord Pumping Station, 75 ft southeast of aerators. Owner: Memphis Light, Gas and Water Division, City of Memphis.

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 90 ft. Upper casing diameter 4.0 in; top of first opening 80 ft, bottom of last opening 90 ft. Drilled water-table observation well, diameter 8 in.

DATUM - Land-surface datum is 310 ft above National Geodetic Vertical Datum of 1929. Measuring point: TOP OF CASING, 2.10 FEET ABOVE LAND SURFACE, 2.10 ft above land-surface datum, Nov. 5, 1986, to present.

PERIOD OF RECORD - January 1987 to current year. Periodic tape measurements from January 1987 to February 2014. Realtime continuous water level measurements and water quality data began February 20, 2014 to current year.

GAGE - Periodic measurements by USGS personnel.

REMARKS - Records good. Water levels in well affected by pumping in the Memphis, Tennessee area.

EXTREMES FOR PERIOD OF RECORD - Highest water level measured, 67.79 ft below land-surface datum, Sept. 29 1998; lowest level measured, 72.56 ft below land-surface datum, Mar. 3, 2009.

WATER-QUALITY RECORDS

WELL CHARACTERISTICS - Depth 90 ft. Upper casing diameter 4.0 in; top of first opening 80 ft, bottom of last opening 90 ft. Drilled water-table observation well, diameter 8 in.

PERIOD OF RECORD - NAQWA-ETN sampling began August 22, 2013. Water quality data collection began February 20, 2014 to current year.

PERIOD OF DAILY RECORD -

   SPECIFIC CONDUCTANCE: February 2014 to current year.
   pH:                   February 2014 to current year.
   WATER TEMPERATURE:    February 2014 to current year.
   DISSOLVED OXYGEN:     February 2014 to current year.

REMARKS - During continuous water quality data collection for NAWQA-ETN the pump is turned on twice a day for 30 minutes and water quality data are recorded within that 30 minutes time frame. Water level values are recorded hourly including the two values when the well is pumping. Those two water level values recorded during pumping are not used for record computations. Static water level measurements are made when the well is not pumping.

EXTREMES FOR PERIOD OF RECORD -


TEMP:                    Max. 17.9 'C, 5/25/2015, Min. 16.9 'C, 2/22/2014,2/24/2014 and 4/15/2014.
SPECIFIC CONDUCTANCE:    Max. 174 uS/cm, many days, Min. 166 uS/cm, 3/13/2015.
pH:                      Max. 6.5, 10/4/2014 - 10/5/2014 and 12/31/2014, Min. 5.4, 3/15/2015.
DO:                      MAX. 7.2 mg/L, 7/8/2015, Min. 5.9 mg/L, 11/19/2014 and 6/25/2015.