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November 05, 2003

Look out below!

I've checked, and double-checked, and this seems to be accurate.

I won't clutter up the place with another copy of the monday chart, but the lake level here at Pawtuckaway dropped 4.3 inches in the past 24 hrs. The biggest one-day drop all last fall was 2.5 inches.

This year it's down 9.7 inches in the past 5 days.

Posted by jghiii at November 5, 2003 09:38 AM
Posted by: dave on November 5, 2003 12:20 PM

Do you know on what days they pull the next board from the dam?

If so would you mark this on your chart.
Also, rain fall ? inches of rain per day is more water into the lake thus slowing down the drop of the water level. So there are two more key factors here that you dont plot here that have an effect on the water level. Especially rain fall.

In the past four weeks, we have had more days of rain (heavey at times) then days with out rain.

You know us engineer types, we have to look at every variable.

Posted by: jgh on November 5, 2003 12:47 PM

I'm trying not to get too anal about this.

But, I do keep an unofficial note in the spreadsheet of when there is significant rain. More precise rainfall info can be seen here

and here

I'd love to track the board removal, but the state removes them unpredicatbly, and I'd have to go over every day to see if anything's changed. Also, because the tops of the boards are under the flowing water, it can be hard to see the precise height.

BTW, for those unfamiliar, the flow of water from the lake, through the dam, is controlled by adding and removing layers of 8 inch boards that are slotted into the gateway.

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