Fourth Quarter Piezometer Readings and Lake LevelEngineering\Number Projects\Drainage Projects\DR11-01 Northlake Dam\Dam Inspection Reports
Can you put this email in here
Thanks
Mike
From: JAMES HOWE <howe1835@msn.com>
Sent: Monday, October 22, 2018 10:56 AM
To: Michael Garza <MGarza@coppelltx.gov>
Subject: Fourth Quarter Piezometer Readings and Lake Level
The Lake Level for the fourth quarter is 485'+. Water is pouring over the spillway chute approx. 6" above the spillway lip.
Readings in October are as follows:
P-102-R - - - - - - -Top North - - - - - - - - -53.75'
P-105-R - - - - - - -Top South - - - - - - - - -32.25'
P-101-R - - - - - - -Bottom North - - - - - - -18.25'
P-103-R - - - - - - -Bottom Middle- - - - - - -18.70'
P-104-R - - - - - - -Bottom South - - - - - - -16.50'
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Third Quarter Piezometer Readings and Lake Level
Hi Michael,
The third quarter Piezometer readings and lake level are below. I attached earlier readings from this year to provide a comparison.
The lake level on 7-3-2018 is 484.5' above sea level. (The lake runs over the spillway at 485.00' above sea level.)
Readings taken July 3rd, 2018
P-102-R - - - - - - -Top North - - - - - - - - -53.60'
P-105-R - - - - - - -Top South - - - - - - - - -33.50'
P-101-R - - - - - - -Bottom North - - - - - - -18.22'
P-103-R - - - - - - -Bottom Middle - - - - - -18.90'
P-104-R - - - - - - -Bottom South - - - - - - - 17.50'
The lake level has dropped six inches in the last three months.
The piezometer readings are relatively the same.
Thanks,
James
Second Quarter Piezometer Readings and Lake Level
The current lake level is 485' above sea level. The lake is at the cusp of running over the spillway.
Readings taken in March 2018.
P-102-R - - - - - - -Top North - - - - - - - - - 53.85'
P-105-R - - - - - - -Top South - - - - - - - - - 31.80'
P-101-R - - - - - - -Bottom North - - - - - - - 18.25'
P-103-R - - - - - - -Bottom Middle - - - - - - 18.50'
P-104-R - - - - - - -Bottom South - - - - - - - 15.25'
There are no significant changes from the second and third quarter.
Thanks,
James Howe