Questions_and_Answers_07022021_0005.pdf
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- Attached to
- Sewer Force Main Replacement for Lake Mead NRA Federal contract opportunity
- Solicitation number
- 140P8121R0011
About this file
This document provides responses to questions submitted for the Sewer Force Main Replacement for Lake Mead NRA solicitation. The wet well plans attached show it has a diameter of 8 feet and the overflow tank an estimated capacity of 10,000 gallons. Observation of surrounding manholes will be needed during shutdowns to check for sewage backing up into gravity lines as the wet well fills. The solicitation seeks replacement of the Cottonwood Cove force main within Lake Mead National Recreation Area for the National Park Service Pacific West Region.
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Text version
Cottonwood Cove Force Main Replacement
140P8121R0011
Submitted Questions: Response #1
Are there any AS‐BUILT plans for the wet well? I am trying to get a capacity of the wet in order to calculate the maximum shutdown times for the connections at the starting valve and lagoon diversion.
Yes. They are attached to this document.
The wet well is 8’ in diameter. The overflow tank is estimated to be 10,000 gallons.
The wet well has gravity lines coming into it. The sewage will back up into the gravity lines as the wet well is filling up. Observation of the surrounding manholes must be made to observe for sewage backing up into the gravity lines during the shutdown operation.
File details come from the government source that posted it. Updated .