7213 Addendum No.1
Purchasing Department
901-B Texas St.
Denton, TX 76209
(940) 349-7100
www.dentonpurchasing.com
ADDENDUM #1
RFP #7213
RFP Lake Ray Roberts WTP 500HP VFD Replacement
Issue Date: November 11, 2019
Response due Date and Time (Central Time):
Thursday, November 14, 2019, 11:00 A.M. C.S.T
RFP # 7213
ADDENDUM #1
The following are answers to contractor questions:
Q1: Question: Reference Drawing 00E06 – Note 6 – Install new louvers in
existing roof penetration-
Do we need to provide these louvers or have you already purchased
them?
If we need to provide them, is there a spec available for the louvers? Or
some parameters that need to be followed when procuring them?
Is the size for the new louvers known?
What controls the new louvers?
A1: The louvers are existing and to remain there is no control involved for the
louvers.
Q2: Question: What is going to done with old VFD equipment?
A2: Contractor shall dispose of the old VFDs as required based on appropriate
standards and procedures.
Q3: Question: Estimated cost for bid bond?
A3: See Opinion of Probable Construction Cost in attachement.
Q4: Question: Louvers replaced?
A4: Existing louvers above the VFDs are to remain. Contractor to cover up the
louvers.
Q5: Question: Cover up the louvers?
A5: Contractor to cover up the louvers penetration.
Q6: Question: Existing exhaust fans disconnected?
A6: The existing exhaust fans to be disconnected, the power and control wires
to be disconnected and coiled up in the junction box located next to them.
Q7: Question: Low pressure relay panel located?
A7: There is a valve/pressure control panel located next to each individual
pump.
Q8: Question: Cable tray above new VFD, size, aluminum?
A8: Refer to the Cable Tray Specification section for size and materials.
Q9: Question: How will the VFDs will be moved in to the electrical room?
A9: City of Denton will provide a new egress door with a removable transom
so the contractor can fit the VFD using a cart.
Q10: Question: Section 00 41 00 3.1 (Time of Completion) states "The work will
be complete for Final Acceptance within 365 days after the Contract time
commences...". However, section 00 52 43 4.1 (Agreement:Contract
Time) states "The work will be complete for Final Acceptance within 154
days after the Contract Times commences...". Please advise of the
contract time and if the number of days are calendar days or working
days.
A10: The contract time will be 154 days Section 00 41 00 3.1 will be updated.
Q11: Question: Can Danfoss be added to the approved manufacturer list?
A9: The manufacturer list will not be modified.
The following are changes to the specifications:
Front End Specification Section 00 41 00 Bid Form
MODIFY existing paragraph 3.1 to read:
3.1 The Work will be complete for Final Acceptance within 154 days after the
date when the Contract Time commences to run as provided in Paragraph 2.03
of the General Conditions.
The following are changes to the plans:
Sheet 00E06 Electrical Room – Demolition
MODIFY existing note by symbol 6 to read:
6. Existing louvers to remain. Provide material to cover up louver penetration.
Sheet 00E07 MCC-1 Partial One-Line Diagram – Modification
ADD General Note 1 to read:
1. Field verify location of all devices and equipment shown on One-Line.
Sheet 00E08 Pump Station Floor Plan
REMOVE Note by symbol 1 on plan to the following equipment:
1. P1-MSH.
2. P2-MSH.
Sheet 00E09 Electrical Room Modification
MODIFY existing note by symbol 5 to read:
5. Provide cable tray if needed to route cables inside electrical room. Minimum
width of tray to be 20”
NO OTHER CHANGES AT THIS TIME.
Please acknowledge addendum when submitting a proposal.