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Water-Year Summary for Site 450601093094301

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Available Parameters
62615 Elevation, lake/res, NAVD88(Mean)  

Water year 2025: 2025-10-01 to 2026-09-30
 
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USGS Water-Year Summary 2025
450601093094301 GP-01 TCAAP Site Gravel Pit
LOCATION - Lat 45°06'01.44", long 93°09'43.37" referenced to North American Datum of 1983, in NE 1/4 SW 1/4 sec.10, T.30 N., R.23 W., Ramsey County, MN, Hydrologic Unit 07010206, The site is located in the former Twin Cities Army Ammunition Plant (TCAAP) site, 1.8 miles east of the USGS Mounds View office. The site is located approximately 1.5 miles NE of the intersection of US HWY 35W and County Rd. 10 (Mounds View Blvd).
SURFACE-WATER RECORDS
PERIOD OF RECORD -

Water levels were recorded periodically from 29 November 2023 to the present. Water levels were recorded every 15-minutes from 29 November 2023 at 12:00 CST to the present, except during the following periods:

29 Nov. 2023 at 12:00 CST - 28 Mar. 2024 at 09:45 CDT: due to deleting data during frozen/ice conditions.

GAGE - Continuous water level, water temperature, and battery voltage are measured with a previously used OTT Orpheus Mini, 0-4m range, pressure transducer. These data are recorded every 15-minutes from 29 November 2023 at 12:00 CST to the present by the same OTT Orpheus Mini pressure transducer, which has a data logger built into it. The data logger is housed inside a 0.75-inch diameter stainless steel well screen with a 2-inch diameter PVC coupler and slip-on cap attached on top of the well screen. The pressure transducer is powered by 3 AA alkaline batteries that are inside of the data logger communications rod. Data are downloaded manually and there no telemetry at the gage.
COOPERATION - This site was operated from 29 November 2023 to the present by the U.S. Geological Survey as a monitoring well for the USGS Twin Cities Army Ammunition Plant (TCAAP) modeling study. The USGS Twin Cities Army Ammunition Plant (TCAAP) modeling study is a collaborative study between the U.S. Geological Survey and the U.S. Army.
EXTREMES FOR PERIOD OF RECORD - Maximum stage: 875.30 ft. NAVD88 on Apr. 17, 2024. Minimum stage: 872.75 ft. NAVD88 on Oct. 15, 2024.