This morning the lake water level sits at 6428.69 feet, slightly less than a foot below the spillway crest. Outflow is set at about 24 cfs, down from 45 cfs for the past several days. Peterson Meadows/Warm Springs snow water equivalent is at 119% of normal this morning, and we are right at the normal annual peak of snow water accumulation. Storms are forecast at the lake for the next several days.

The lake ended April with a water surface elevation of 6428.73, losing 119 acre feet through the month with outflow averaging 39 cfs. Calculations show that April inputs (precipitation, ground water, surface water) were right at 37 cfs, which is about 110% of normal for the month. The April 30 elevation is very near the normal of 6428.80 feet.

The Boulder Creek hydrograph is indicative of small stream response in the area, including inflows to the lake from North Fork Flint Creek. Boulder Creek flows have been below normal, but with warm weather and additional precipitation, expect flows to increase quickly. North Fork Flint Creek and lake inputs will follow, but on a smaller scale.

The NRCS just published the May Water Supply Outlook and it looks favorable for Flint Creek. Right now, the best estimate (50% chance of exceedance) is for 124% of normal water volume passing the USGS gage, Flint Creek near Southern Cross. The attached JPG shows model output using these parameters. Note the especially high outflow average for June and elevated outflows through the year.

With the snow pack pretty much in place, the biggest factor now affecting runoff and hydrograph behavior is air temperature. Reservoir outflow may require careful monitoring and increases depending on air temperatures (both day and night) and the possibility of rain or rain-on-snow events.

Thanks, Dave


Georgetown Lake Fire Department, 
Deer Lodge and Granite Counties, Montana
Public Protection Classification: 07 /10
Effective Date: June 01, 2016
Dear Mr . Dick Verstraete ,
1000 Bishops Gate Blvd. Ste. 300
Mt. Laurel NJ 08054-5404
t 1.800.444.4554 Opt 2
f 1.800.777.3929

We wish to thank you Mr. Fred Bjorklund and Chief Fred Bjorklund for your cooperation during our recent Public Protection Classification (PPC) survey. ISO has completed its analysis of the structural fire suppression delivery system provided in your community. The resulting classification is indicated above.


Please Read the entire letter by clicking on this link --> Public Protection Validation Document

Please View the Hydrant Flow Data chart by clicking on this link --> Hydrant Flow Data



Development Permit System

Review & Comment Meeting

Georgetown Lake HOA Board Members

Thursday, November 20 at noon, Seven Gables


The purpose of this meeting is to review and provide comment on Anaconda-Deer Lodge County’s draft rewrite of the Development Permit System (DPS). These regulations pertain ONLY to Deer Lodge County. This meeting is open to the public, but its primary purpose is to provide an opportunity for HOA Board members to review the draft regulations, ask questions, and provide comments to the County.


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