USGS Water-Year Summary for Site 361334120035101

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	Available Parameters
	50012 Compaction, aquifer system(Max.,Min.,Med.) [Cumulative since 1/11/1965]
	50012 Compaction, aquifer system(Min.,Med.,Max.) [Cumulative since 4/4/2012]
	72019 Water level, depth LSD(Max.,Min.,Med.)

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Water year 2023: 2022-10-01 to 2023-09-30

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USGS Water-Year Summary 2023

361334120035101 020S018E06D001M

Central Valley aquifer system

LOCATION - Lat 36°13'34.7", long 120°03'54.6" referenced to North American Datum of 1983, in NW 1/4 NW 1/4 sec.06, T.20 S., R.18 E., Fresno County, CA, Hydrologic Unit 18030012,

GROUNDWATER RECORDS

WELL CHARACTERISTICS - Depth 1,007 ft. Upper casing diameter 6 in; top of first opening 716 ft, bottom of last opening 872 ft.

DATUM - Land-surface datum is 327 ft above North American Vertical Datum of 1988. Measuring point: Undefined, 1.0 ft above land-surface datum, Dec. 1, 1964 to Nov. 2, 2011; Top of concrete shelter foundation, 0 ft above land-surface datum, Nov. 1, 2011 to present.

PERIOD OF RECORD -

Water years 1964 to current year.

GAGE -

Electronic data logger and pressure sensor; potentiometer and dial gage

REMARKS -

Record is rated excellent. Sudden water-level changes may be attributed to nearby anthropogenic effects such as pumping and sampling or natural events such as earthquakes. The effects of friction in the extensometer apparatus, likely caused by contact between the extensometer cable and the casing, are evident periodically in the record by periods of little change which are terminated by small vertical offsets, which resulted in a frictional deadband in the record. The friction was sometimes overcome without intervention but sometimes was overcome by manually oscillating the cable during field visits, which involved applying force to the cable to free it from the friction. Therefore, the magnitude of compaction that occurred during periods of friction was recorded when the friction was overcome; however, the time delay between actual compaction and recording of the compaction during these periods is unknown.

Site consists of 1 continuous record groundwater well and 1 subsidence monitoring site, located in a building.

PERIOD OF DAILY RECORD -

April 2012 to current year.

EXTREMES FOR PERIOD OF RECORD -

Highest daily maximum water level recorded, 245.25 ft depth to water below land surface, Jan 5, 1984; lowest daily minimum water level recorded, 626.76 ft depth to water below land surface, Aug 11, 2015.