Reservoir Report

Leviathan Mine Pond 4 Nr Markleeville Ca reservoir

California, USA USGS
Today high
--
Tonight low
--
Current storage
5ft
% of normal
-11%
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Right now · current storage
Leviathan Mine Pond 4 Nr Markleeville Ca
USGS · 103087887
5 ft
As of 2026-05-11
Seasonal avg
6
Record max
8
24h change
2.3%
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Leviathan Mine Pond 4 Nr Markleeville Ca -- None reservoir
Leviathan Mine Pond 4 Nr Markleeville Ca None
About this reservoir

Leviathan Mine Pond 4 Nr Markleeville Ca

Leviathan Mine Pond 4 is a former mining site located near Markleeville, California. The site was used for mining operations during the 1950s and 1960s, and has since become a Superfund site due to the presence of hazardous waste. Hydrologically, the site is located in the East Fork Carson River watershed and is fed by surface water runoff and snowpack melt. The area is known for its high snowpack levels, which provide water for irrigation and recreational activities. However, due to the presence of hazardous waste, the water in Leviathan Mine Pond 4 is not safe for agricultural or recreational use. The site is currently undergoing remediation efforts to mitigate the environmental damage caused by mining operations.

StateNone
OperatorUSGS
Site ID103087887
Percent of normal-11%
Last updated2026-05-11
Records since2007
Storage trends

Daily levels at Leviathan Mine Pond 4 Nr Markleeville Ca

Storage volume, pool elevation, and total release plotted from the operating agency's daily observations.

Gage height, ft

ft · code 00065

Detailed forecast

Plan around the weather

Same NOAA / yr.no feed Snoflo's iOS app uses. Watch the precipitation column on the meteogram -- rain on the basin upstream typically lifts inflow 24-72 hours later.

Hourly detail

Next 5 days, hour by hour

Temperature line with weather symbols on top, snow + rain accumulation as columns, humidity as a dotted line.

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Deep dive

5-day forecast table

Every 3 hours, broken out across temperature, snow, rain, humidity, and wind. Each cell is colour-coded relative to the column min/max.

TimeConditionTemp (°F)Snow (in)Rain (in)Humidity (%)Wind (mps)Wind dir
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Long-term outlook

15-day temperature & precipitation

Daily temperatures, snow, and rain projected over the next two weeks.

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Regional inflow

Nearby streamflow gauges

USGS streamgauges around Leviathan Mine Pond 4 Nr Markleeville Ca -- inflows here typically show up in storage 24-72 hours later.

Track Leviathan Mine Pond 4 Nr Markleeville Ca in the Snoflo app

Save this reservoir as a favorite and set push alerts when storage crosses a threshold (e.g. "alert me at 80% of normal").

FAQ

About Leviathan Mine Pond 4 Nr Markleeville Ca

Where does the data for Leviathan Mine Pond 4 Nr Markleeville Ca come from?

Daily storage, pool elevation, and release rates are sourced from USGS, USBR, and USACE monitoring stations. Weather forecast comes from NOAA / yr.no -- the same feed Snoflo's iOS app uses.

How often is the report updated?

Storage observations are updated daily by the operating agency. The 15-day weather forecast refreshes throughout the day. Snoflo caches and renders the most recent observation -- check the "as of" timestamp on the storage card.

What does the Hazard hazard rating mean?

The Corps of Engineers' hazard potential classification grades probable consequences if the dam fails: High = probable loss of human life; Significant = no probable loss of human life but possible economic loss / environmental damage; Low = no probable loss of human life, only minor economic / environmental losses. See the Dam Data Reference card above for the full definitions.

What's "% of normal"?

The current storage value compared to the historical average storage on this calendar day. 100% = right on average; values above 100% mean above-normal storage (wet year); values below mean below-normal (dry year or drought).

Can I get alerts when storage crosses a threshold?

Yes -- alerts are managed in the Snoflo iOS app. Favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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Premium feature

Favorites and alerts are part of Snoflo Premium. Save reservoirs, set storage thresholds, and get push notifications when conditions cross.

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Manage alerts in the Snoflo app

Custom alerts are configured in the iOS app -- favorite this reservoir, set a threshold, and you'll get a push the moment conditions cross.

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