Tappan Lake Water Level Today

Current elevation 898.98 ft 0.32 ft below full pool (899.30 ft, seasonal target for this date)

No change in 24 h▼ 0.08 ft in 7 days Storage 34,354 acre-ft

Reported Nov 4, 2026, 4:15 AM EST · Elevation above NGVD 1929 · U.S. Army Corps of Engineers, station Tappan

As of Nov 4, 2026, 4:15 AM EST, Tappan Lake is at 898.98 ft, 0.32 ft below full pool. The level has fallen 0.08 ft over the last 7 days.

Tappan Lake level history

Level Full pool

Last 14 days
Date	Elevation	Daily change	Storage
Nov 4, 2026	898.98 ft	0.00 ft	34,354 acre-ft
Nov 3, 2026	898.98 ft	−0.01 ft	34,354 acre-ft
Nov 2, 2026	898.99 ft	−0.01 ft	34,377 acre-ft
Nov 1, 2026	899.00 ft	−0.02 ft	34,400 acre-ft
Oct 31, 2026	899.02 ft	−0.01 ft	34,448 acre-ft
Oct 30, 2026	899.03 ft	−0.01 ft	34,472 acre-ft
Oct 29, 2026	899.04 ft	−0.02 ft	34,496 acre-ft
Oct 28, 2026	899.06 ft	0.00 ft	34,544 acre-ft
Oct 27, 2026	899.06 ft	−0.01 ft	34,544 acre-ft
Oct 26, 2026	899.07 ft	−0.01 ft	34,568 acre-ft
Oct 25, 2026	899.08 ft	−0.01 ft	34,592 acre-ft
Oct 24, 2026	899.09 ft	−0.01 ft	34,616 acre-ft
Oct 23, 2026	899.10 ft	−0.01 ft	34,640 acre-ft
Oct 22, 2026	899.11 ft	−0.01 ft	34,664 acre-ft

Is Tappan Lake full?

Tappan Lake is close to full: at 898.98 ft it is 0.32 ft below full pool (899.30 ft). This official target changes with the season; the figure shown applies to this date. Over the last 7 days the level changed by −0.08 ft.

Tappan Lake level history

In the 365 days we have on record (Nov 3, 2025 to Nov 4, 2026), the highest level was 901.38 ft on May 26, 2026 and the lowest was 894.33 ft on Jan 24, 2026.

Tappan Lake storage

The reservoir held 34,354 acre-ft of water at the last reading (Nov 4, 2026, 4:15 AM EST).

Lakes near Tappan Lake

Clendening Lake 6.6 mi · 897.84 ft Leesville Lake 8.1 mi · 962.49 ft Piedmont Lake 11 mi · 912.79 ft Atwood Lake 12 mi · 927.63 ft Dover Lake 17 mi · 864.65 ft Bolivar Lake 23 mi · 897.69 ft

All Ohio lake levels

FAQ

What is the Tappan Lake water level today?

898.98 ft as of Nov 4, 2026, 4:15 AM EST, reported by the U.S. Army Corps of Engineers.

What is full pool for Tappan Lake?

899.30 ft on this date (the official target changes with the season), according to the official source linked on this page.

How often is this page updated?

Every 3 hours. The gauge reports every 15 minutes.

What is the highest and lowest level of Tappan Lake?

In the period we have (since Nov 3, 2025): 901.38 ft and 894.33 ft.

Data: U.S. Army Corps of Engineers, station Tappan (official page). Full pool: official source. For information only. Not for navigation or flood safety decisions. Check the official source. LakeLevelHQ is not affiliated with any government agency.