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Water-Year Summary for Site 445853093130701

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Available Parameters
00010 Temperature, water(Mean)  
00045 Precipitation(Max.,Sum) [not accurate when freezing]  
62611 Elevation, GW, NAVD88(Mean)  
72019 Water level, depth LSD(Mean)  

Water year 2023: 2022-10-01 to 2023-09-30
 
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USGS Water-Year Summary 2023
445853093130701 MW-1 24th & Elm Well 0000842850
Other aquifers
Holocene Alluvium
LOCATION - Lat 44°58'53.20", long 93°13'06.54" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.19, T.29 N., R.23 W., Hennepin County, MN, Hydrologic Unit 07010206, The well is located in Minneapolis, MN. The well is located along the 24th Ave. SE boulevard . The well is located approximately 0.8 miles NW of the intersection of Minnesota HWY 280 and Kasota Ave.
GROUNDWATER RECORDS
WELL CHARACTERISTICS - Depth 30 ft. Upper casing diameter 2 in; top of first opening 19.9 ft, bottom of last opening 29.9 ft. Well MW-1 is a groundwater observation well that was drilled on 16 Oct. 2019 with an 8-inch-diameter, with a hollow-stem auger drill rig to 30 feet. The well is constructed of a 10-feet-long, 2-inch-diameter, schedule-40, stainless steel, 0.010-inch slotted, well screen, attached with to length/s of 2-inch-diameter, schedule-40 stainless steel well casing. The well casing measuring point (stickup) was 2.19 feet (856.19 ft. NAVD88, +/- 1.6 ft.) above land surface when measured on 16 Oct. 2019. There is not a protection post installed around the well. The well's stickup is constructed of a MN-DOT approved breakaway connection near land surface. The open interval of the well is between 19.9 and 29.9 feet below land surface and the total well depth is 30 feet below land surface.
DATUM - Land-surface datum is 854 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of aluminum locking cap ring; mounted on top of 2-inch diameter well casing, 2.19 ft above land-surface datum, Oct. 16, 2019 to present. The measuring point is a black mark on the top of the aluminum locking cap ring that is mounted on top of the 2-inch diameter stainless steel well casing, which was 2.19 feet above land surface on 16 Oct. 2019. Elevation of the measuring point is 856.19 plus-or-minus 1.6 feet above sea level, North American Vertical Datum of 1988, based on Light Detection and Ranging (LiDAR) elevation data.
PERIOD OF RECORD - Water levels were recorded periodically from 07 November 2019 to 06 October 2020. Water levels were recorded quarter-hourly from 07 November 2019 at 11:15 CST to 06 October 2020 at 11:30 CDT.
GAGE - Continuous water level, water temperature, and battery voltage were measured with a previously-used OTT Orpheus Mini 0-10m pressure transducer. These data were recorded quarter-hourly from 07 November 2019 at 11:15 CST to 06 October 2020 at 11:45 CDT by the same OTT Orpheus Mini pressure transducer, which had a data logger built into it. The data logger was hung from the top of the 2-inch stainless steel well casing and housed inside the aluminum locking well cap.The pressure transducer was powered by 3 AA alkaline batteries that were inside of the data logger communications rod. Data were downloaded manually and no telemetry or phone line was wired into the gage.

An unheated rain gage was installed at the site on 17 March 2020 at 13:15 CDT, recording quarter-hourly rainfall data. The rain gage was mounted on the back of a nearby sign/post, located approximately 50 ft. northeast of well MW-1.

The pressure transducer and rain gage were removed from the site on 06 Oct. 2020 at 11:45 CDT. Data collection for the Stormwater Council study have concluded and all data logging equipment have been removed from the site.
COOPERATION - This site was operated (2019-2020) by the U.S. Geological Survey was a monitoring well for the USGS Stormwater Council LCCMR study during 07 November 2019 to 06 October 2020. The USGS Stormwater Council LCCMR study was a collaborative effort between the Environment and Natural Resources Trust Fund (via Legislative-Citizen Commission on Minnesota Resources (LCCMR)) and the U.S. Geological Survey.
REMARKS - Large water level and water temperature spikes were due to focused recharge from rainfall events. This well is screened near a stormwater structure that is designed to recharge urban stormwater runoff into the GW system.
CLIMATOLOGICAL RECORDS
PERIOD OF RECORD - Precipitation data were recorded quarter-hourly from 17 March 2020 at 13:15 CDT to 06 October 2020 at 11:45 CDT.
INSTRUMENTATION - Precipitation was measured with an Onset RG3 tipping-bucket rain gage, which was accurate to 0.01 inches. The rain gage was unheated and uncovered during the winter. Thus precipitation data during freezing periods (about December through early April) result from melting of snow during warm periods and do NOT represent actual precipitation.
WATER-QUALITY RECORDS
WELL CHARACTERISTICS - Depth 30 ft. Upper casing diameter 2 in; top of first opening 19.9 ft, bottom of last opening 29.9 ft. Well MW-1 is a groundwater observation well that was drilled on 16 Oct. 2019 with an 8-inch-diameter, with a hollow-stem auger drill rig to 30 feet. The well is constructed of a 10-feet-long, 2-inch-diameter, schedule-40, stainless steel, 0.010-inch slotted, well screen, attached with to length/s of 2-inch-diameter, schedule-40 stainless steel well casing. The well casing measuring point (stickup) was 2.19 feet (856.19 ft. NAVD88, +/- 1.6 ft.) above land surface when measured on 16 Oct. 2019. There is not a protection post installed around the well. The well's stickup is constructed of a MN-DOT approved breakaway connection near land surface. The open interval of the well is between 19.9 and 29.9 feet below land surface and the total well depth is 30 feet below land surface.
DATUM - Land-surface datum is 854 ft above North American Vertical Datum of 1988. Measuring point: Black mark on top of aluminum locking cap ring; mounted on top of 2-inch diameter well casing, 2.19 ft above land-surface datum, Oct. 16, 2019 to present. The measuring point is a black mark on the top of the aluminum locking cap ring that is mounted on top of the 2-inch diameter stainless steel well casing, which was 2.19 feet above land surface on 16 Oct. 2019. Elevation of the measuring point is 856.19 plus-or-minus 1.6 feet above sea level, North American Vertical Datum of 1988, based on Light Detection and Ranging (LiDAR) elevation data.
PERIOD OF RECORD - Water temperatures were recorded quarter-hourly from 07 November 2019 at 11:15 CST to 06 October 2020 at 11:30 CDT.
COOPERATION - This site was operated (2019-2020) by the U.S. Geological Survey was a monitoring well for the USGS Stormwater Council LCCMR study during 07 November 2019 to 06 October 2020. The USGS Stormwater Council LCCMR study was a collaborative effort between the Environment and Natural Resources Trust Fund (via Legislative-Citizen Commission on Minnesota Resources (LCCMR)) and the U.S. Geological Survey.
INSTRUMENTATION - Water temperature are measured with an OTT Orpheus Mini submersible pressure transducer accurate to +/- 0.1°C. Temperature differences are accurate to 0.1°C.