Lake name: Twin

County: Washington


Last 10 years of data, click to enlarge.

Water Level Data

Period of record: 07/29/1996 to 10/20/2017
# of readings: 1010
Highest recorded: 853.1 ft (06/29/2003)
Lowest recorded: 848.61 ft (08/12/2013)
Recorded range: 4.49 ft
Last reading: 852.59 ft (10/20/2017)
Ordinary High Water Level (OHW) elevation: 849.5 ft
Datum: NGVD 29 (ft)

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Benchmarks

Elevation: 856.01 ftDatum: NGVD 29 (ft)
Date Set: 07/29/1996Location: T31R20S25
Description: At private residence (15570 136th St) on N side of lake, centerline of concrete sill at the westerly of 2 doors on the lakeside of the basement (door sill is approx. 4' above concrete patio slab). [Elevation=856.52 NAVD 88, as such add 0.51' to equate to NAVD 88 as per GPS survey 10/29/15.]
Elevation: 856.07 ftDatum: NGVD 29 (ft)
Date Set: 04/18/1997Location: T31R20S25
Description: Found 2009 for Gage Run use. At private residence, 15535 136th St., spk in 0.8' pine tree, 1.6' above ground, on east lot line. Spk faces south near fence line, approx. 12' from WE.