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Water-Year Summary for Site 07134100

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  • Water-Year Summary reports summarize a year of hydrologic data in a printer-friendly format.
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Available Parameters
00060 Discharge(Mean)  

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

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USGS Water-Year Summary 2022
07134100 BIG SANDY CREEK NEAR LAMAR, CO
LOCATION - Lat 38°06'51", long 102°29'00" referenced to North American Datum of 1927, in SW 1/4 SW 1/4 sec.21, T.22 S., R.45 W., Prowers County, CO, Hydrologic Unit 11020011, on right bank 35 ft upstream from State Highway 196, 950 ft upstream from mouth, and 7.5 mi east of Lamar.
DRAINAGE AREA - 3,216 mi² of which 585 mi² probably is noncontributing.
REVISIONS HISTORY - WDR-US-2011: Drainage area.
SURFACE-WATER RECORDS
PERIOD OF RECORD - February 1968 to September 1982, July 1995 to current year.
GAGE - Water-stage recorder with satellite telemetry and crest-stage gage. Elevation of gage is 3,545 ft above NGVD of 1929, from topographic map. Prior to June 30, 1977, at datum 1.00 ft higher.
REMARKS - Water year 2014; records fair except for estimated daily discharges, which are poor. Water year 2015; records fair except for estimated daily discharges, which are poor. Water year 2016; records fair except for estimated daily discharges, which are poor. Water year 2017; records fair except for the period Sept. 12 to Oct. 17, and estimated daily discharges, which are poor. Water year 2018; no estimated daily discharges. Records fair except for the period Apr. 24 to June 21, and flows above 113 ft³/s, which are poor. Water year 2019; no estimated daily discharges. Records fair except for flows above 22 ft³/s, which are poor. Water year 2020; records fair except for flows above 22 ft³/s, and estimated daily discharges, which are poor. Water year 2021; records poor. Natural flow of stream affected by storage, erosion-control, and livestock-watering reservoirs, diversions for irrigation, groundwater withdrawals, and return flows from irrigated areas. Flow affected by backwater from the Arkansas River at times.
EXTREMES OUTSIDE PERIOD OF RECORD - Flood of June 17, 1965, reached a discharge of 3,600 ft³/s, from slope-area measurement of peak flow 0.5 mi upstream from station. Flood of Aug. 21, 1965, reached a stage of 9.93 ft, from floodmarks, discharge unknown.
EXTREMES FOR PERIOD OF RECORD - Maximum discharge, 2,850 ft³/s, May 4, 1999, from rating curve extended above 1,470 ft³/s on basis of flow-through culvert analysis with flow over road measurement at gage height 9.48 ft, gage height, 9.66 ft.