Name:	Osms -	Reply
Subject:	msl vs md
Date:	4/21/2017 9:22:32 AM

The answer is, when the lake was built in 1928, the level was established as Martin Datum (md) and all was fine except the rest of the world uses Mean Sea Level (msl) and there is a one foot difference between the two.  During relicensing FERC required APCo to standardize with the rest of the world so we now use msl as measurement.  490 md equals 491 msl.  Official use of 490 md has disappeared forever.

My guess is a mistake of one foot was made in 1928 when the height of the lake was established.  Maybe their GPS wasn't working well that day.

Name:	George -	Reply
Subject:	msl vs md
Date:	4/22/2017 10:04:25 AM

Here's a thought.  The ozone is disappearing, the earth is warming, the sea level is rising.  Should I raise my dock?  Add a few feet to my seawall?  Whew, I just checked Google and the global mean sea level is approximately the same as it was 35,000 years ago.

Name:	BigFoot -	Reply
Subject:	msl vs md
Date:	4/22/2017 10:25:29 AM

You'll be o.k....but you might advise your descendants to invest in PFD's 

http://oceanservice.noaa.gov/facts/sealevel.html

Name:	Osms -	Reply
Subject:	msl vs md
Date:	4/22/2017 10:43:43 AM

Based on our wonderful NOAA's dire prediction, and FEMA's measurement of the base elevation of my house @ 535' msl, I will be in trouble  in 51,360 years.  Now Big Foot, you have ruined my whole day.

Name:	BigFoot -	Reply
Subject:	msl vs md
Date:	4/22/2017 11:14:27 AM

..but not everybody is as high and dry as you are..not to mention how time flies when you're having fun!