Terrapin - 82003100
Washington County

Water Level Data

Period of record: 04/15/1999 to 10/03/2023
# of readings: 306
Highest recorded: 916.18 ft (07/21/2020)
Lowest recorded: 909.99 ft (08/21/2009)
Recorded range: 6.19 ft
Last reading: 911.57 ft (10/03/2023)
Ordinary High Water Level (OHW) elevation: N/A
Datum: (ft)

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Last 10 years of data, click to enlarge.

Benchmarks

Elevation: 923.56 ftDatum: NGVD 29 (ft)
Date Set: 07/18/2023Location: T31R20S10
Description: For use only with prior permission of landowner. Set spike, 1.8' above ground, in East side of 1.1' diam big-tooth aspen, only large aspen in grove of cherry and oak trees, 25' West of lake access trail, and 75' North of water's edge, at private residence, 16420 Orwell Rd, Marine on St. Croix.
Elevation: 918.96 ftDatum: NGVD 29 (ft)
Date Set: 04/15/1999Location: T31R20S15
Description: Found 2020 for use only with prior permission of landowner. 3/8" spike, 0.9' above grd in the NW side of a 1.4' oak by 2 larger cottonwoods, on slope approx 24' North of old road bed, 45' east of water's edge, and 52' East of outlet channel of Terrapin Lake, Warner Nature Center. [Elevation = 919.07 NAVD 88, as such add 0.11' to NGVD 1929 elevations to equate to NAVD 88 datum as per GPS survey 11/18/15.]

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