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Water-Year Summary for Site 04181120

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Available Parameters
00060 Discharge(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
04181120 ST. MARYS RIVER AT PLEASANT MILLS, IN
LOCATION - Lat 40°46'46.0", long 84°50'32.5" referenced to North American Datum of 1983, in NE 1/4 SE 1/4 sec.20, T.27 N., R.15 E., Adams County, IN, Hydrologic Unit 04100004, on SR 101 bridge over Saint Marys River in Pleasant Mills, IN, approx. 1.3 mi downstream of confluence with Blue Creek.
DRAINAGE AREA - 553.62 mi². from StreamStats v4.2.1.
REVISIONS HISTORY - Discharge:  October 11, 2018 to May 4, 2019. 

Revisions: Estimated discharge was redone on Dec. 18 - 31, 2022.  Data was revised on Nov. 29, 2023.  Revision was done since discharge went to low based on the US comparison sites. 
SURFACE-WATER RECORDS
PERIOD OF RECORD - Discharge - October 11, 2018 to current.
GAGE - Water-stage recorder.  Datum of gage is 766.94 ft. above the North American Vertical Datum of 1988.
REMARKS - Flow regulated by Grand Lake St. Marys Reservoir.  Slight diversion from or into Wabash River and into Miami and Erie Canal.  Pumping between site 04180988 and 04181049 has been observed by Ohio staff at times of low flow.