NC0024333_Replace filter valves_20201201

Strickland, Bev
From: Kyle Ketchum <[e-mail]>
Sent: Tuesday, December 1, 2020 1:40 PM
To: Scheller, Roberto
Cc: Russell Colbath; Kyle Edwards
Subject: [External] RE: City of Monroe NPDES NCO024333 filter valves
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Good afternoon,
We are planning to start changing out the filter valves Monday 12/7/20 depending on plant operation, forecasts and
weather.
Thanks
Kyle Ketchum
City of Monroe
Wastewater Treatment Plant Superintendent
Office 704-282-4612
775 Treeway Drive
PO Box 69
Monroe NC 281 1 1
[e-mail]
monroenc.orci
E-mail correspondence to and from this address may be subject to North Carolina's public records laws and if
so, may be disclosed.
From: Kyle Ketchum
Sent: Tuesday, May 12, 2020 12:09 PM
To:'Scheller, Roberto' <[e-mail]>
Cc: Russell Colbath <[e-mail]>
Subject: City of Monroe NPDES NC0024333 filter valves
Good afternoon,
The City of Monroe WWTP will be having the effluent and backwash valves for filters 1-4 replaced. To
complete this work, for the effluent valves, the influent flow coming into the plant, will be stored in the EQ
basin, then pumped back into plant. The following is from Special Provisions included in the contract:
1

B. Because the WWTP filters are critical operating facilities for the WWTP, the WWTP will have to
take the filters out of service for a period not to exceed seven (7) hours for the removal and installation
of the four (4) effluent valves. The contractor shall complete all work required for replacement of the
effluent valves during the maximum seven (7) hour shut down period. Two of the effluent valves can be
done on one day, then the other two can be done at a later date scheduled, once contractor has submitted
work plan, City may consider with advanced approval. Once the new effluent valves are installed, the
operators can be installed. The backwash valves can be completed one (1) at a time for a period not to
exceed four (4) hours per installation of each backwash valve while the filters are in operation. The
contractor shall submit a detailed work sequence, and the owner shall determine the date for which the
work can proceed (weather forecasts will be utilized to help determine).
C. Once all new valve equipment is on -site and the contractor has submitted an acceptable work
sequence/plan, the City will issue a notice of work area availability to the Contractor for work to be
done.
D. The contractor shall make all efforts in advance planning and work preparation to ensure the
downtime is limited to this seven (7) hour time for all work associated with filter 91-4 effluent
valves.
Thanks
Kyle Ketchum
City of Monroe
Wastewater Treatment Plant Superintendent
Office 704-282-4612
775 Treeway Drive
PO Box 69
Monroe NC 28111
kketchum@monroenc.
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E-mail correspondence to and from this address may be subject to North Carolina's public records laws and if
so, may be disclosed.