Miltonvale Wellfield Development Phase 1C
Wellfield Controls and Systems
Charlottetown Water & Sewer Utility
Section 00 01 01
July 28, 2016
Page 1
Addendum #2
ADDENDUM #2
All clauses set forth in the Bidding Documents, Contract Documents and General Requirements
of the original Contract Documents shall apply to and govern this work. The addendum refers to
changes and additions to the original Contract Documents and is to be read in conjunction with
the same. All other parts of the original Contract Documents are to be considered as applying to
the work of this Contract with the exceptions and changes as noted below.
SPECIFICATIONS
1.
Reference Section 00 41 13 - Bid Form
.1
Reference Appendix 'E' - Cost Breakdown
.1
Delete Appendix 'E' (Page 7 & 8) of the Bid Form and replace with
revised Appendix 'E' (Page 7 & 8), issued with and forming part of this
Addendum.
2.
Reference Section 22 42 01 - Plumbing Specialties and Accessories
.1
Reference Paragraph 2.5 - Back Flow Preventers
.1
Reference Paragraph 2.5.1.1.1: Add Approved Equal Wilkins
.2
Reference Paragraph 2.5.2.1: Add Approved Equal Wilkins
.2
Reference Paragraph 2.7 - Pressure Regulators
Add new Paragraph 2.7.5:
.1
".5
Approved Equal Wilkins"
.3
Reference Paragraph 2.13 - Strainers
Add new Paragraph 2.13.4:
.1
".4
Approved Equal SXL"
3.
Reference Section 33 32 69 - Water Fluoridation Systems
.1
Reference Paragraph 2.2 - Equipment and Materials
.1
Reference Paragraph 2.2.2.1: 35 US Gallon solution tank will be
acceptable.
.2
Reference Paragraph 2.2.2.2: Float type level control shall be connected
to Milltronics ultrasonic system and used as backup.
4.
Reference Section 33 32 76 - Water Disinfection Systems
.1
Reference Paragraph 1.4 - Scope of Work
.1
Reference Paragraph 1.4.1.5: Delete as written and replace with revised
Paragraph to read:
".5
Water Services: This shall include the supply and
transportation of all labour, material, and connection of the
existing water service inside the Building to the chlorine
residual analyzer system, tube mixer, etc., all as specified
or as shown or as directed by the Engineer."
.2
Reference Paragraph 2.2 - Equipment and Materials
Add new Paragraph 2.2.5.4:
.1
".4
Booster pump shall be sized for flow and pressure differential
equivalent with 20 ft of piping including elbows, tees, ejector
and check valve shown on Drawing M102 for fully functional
system."
Coles Associates Ltd.
Miltonvale Wellfield Development Phase 1C
Wellfield Controls and Systems
Charlottetown Water & Sewer Utility
Addendum #2
Section 00 01 01
July 28, 2016
Page 2
DRAWINGS
1.
Reference Drawing C202 - Wellhead Details Control Building Schematic Layout
Sections & Details
.1
Reference Submersible Pump Data Table:
Add the following information to the table:
.1
2.
Reference Drawing M101 - Control Building Mechanical Floor Plan and Details
.1
Reference Plumbing Fixture Schedule:
Add note: "Zurn, Stern Williams, AMI will be accepted as an approved
.1
equal for all items."
3.
Reference Drawing M102 - Control Building Floor Plan Fluoride and Chlorine Schematic
Details
.1
Reference Detail 2: Add manual isolation ball valves at vacuum regulators and
automatic switch over module in the gas and vent lines.
.2
Reference Detail 4: Add manual isolation ball valves at vacuum regulators and
automatic switch over module in the gas and vent lines.
4.
Reference Drawing E102 - Wellfield Site Plan Electrical Trench Details
.1
Modify trench details C, E, F, H, and O as indicated in attached Sketches SK-02
and SK-03.
5.
Reference Drawing E101 - Wellfield Site Plan Electrical
.1
Reference Detail 1/E101/E101:
.1
Padmounted service transformer and associated concrete transformer
pad and bollards which are located at the north end of the wellfield is to
be replaced by a 200A, 600V, three phase pole mounted transformer
bank. Coordinate exact location of transformer bank utility pole with
Maritime Electric and fit-up pole in accordance with Maritime Electric
Construction Drawing Standard UG-08-01. Install a new CSA 4x rated
200A fused disconnect switch c/w neutral kit located on the back side of
the field mounted distribution panel support structure and extend the
underground service from the utility pole, up through the concrete pad to
the new service rated disconnect switch in accordance with trench detail
H. Wire 4#3/0 ,1#4 bond in 53mmC from new service rated disconnect
through a new utility meter cabinet to the field distribution panel. Delete
the main breaker and neutral kit from the field distribution panel so that
the panelboard is main lugs only. Provide sufficient space on the field
distribution panel support structure to mount the utility meter cabinet. The
ground rods which are indicated in Note #1 are to be connected to the
neutral kit of the new service rated disconnect switch, not the field
distribution panelboard.
Coles Associates Ltd.
Miltonvale Wellfield Development Phase 1C
Wellfield Controls and Systems
Charlottetown Water & Sewer Utility
Addendum #2
Section 00 01 01
July 28, 2016
Page 3
6.
Reference Drawing E103 - Water Treatment Building and Well Chamber Electrical Floor
Plans
.1
Reference Detail 1/E103/E103:
.1
In Control Room 004 route a new 103mmC from the bottom of
panelboard 'A', into the ground alongside the existing
underground 103mmC and stub the conduit just outside the
exterior wall adjacent to the intersection of gridlines 2 & C. Open
trench and core through the concrete foundation wall as required
to install new conduit beside the existing Well #2 conduit run.
New 103mmC is to be installed for the parallel run of
3c#500MCM teck cable to Well #2. Coordinate open trenching in
Control Room 004 with the General Contractor so that all work is
completed prior to pouring of the concrete floor. Coordinate open
trenching in the Control Building parking area with the General
Contractor so that all work is completed prior to paving. Once
conduit and cabling are installed, reinstate 100mm Class "A"
gravel surface with a 600mm compacted sandstone base to
match site existing conditions.
7.
Reference Drawing E105 - SCADA System Schematic
.1
Reference UPS System Specification Section:
.1
For clarification only, well chamber control panels do not require UPS,
only UPS is needed at the main control building PLC cabinet.
Add "Liebert" as an acceptable manufacturer.
.2
.2
Reference Variable Frequency Drive Specification Section:
Add "Vacon" as an acceptable manufacturer.
.1
.3
Reference VFD Enclosure Specification Section:
.1
For clarification only, the exact size of the VFD enclosure is to be
coordinated with the VFD manufacturer to ensure proper clearances and
ventilation is maintain for all the different sizes of VFD's. Final sizing of
the enclosures shall be coordinated on site with the Contractor for
mounting fasteners and supports.
End of Section
Coles Associates Ltd.
Miltonvale Wellfield Development Phase 1C
Wellfield Controls and Systems
Charlottetown Water & Sewer Utility
1.7
Section 00 41 13
Bid Form
(Issued via Addendum #2) Page 7
APPENDIX 'E'
.1
COST BREAKDOWN
We submit herewith our cost breakdown for the work to be performed on this Project and
in accordance with the requirements of the appropriate specifications herein.
Class of Labour, Materials
Plant and/or Equipment:
Total Cost
------------------------------------------------------------------------------------------------------------------General Requirements:
(incl. insurance, permits, O/H, Profit, etc.)
$___________________
Mobilization & Demobilization:
$___________________
Site Work:
$___________________
Asphalt Paving:
$___________________
Concrete Work:
$___________________
Landscaping:
$___________________
Piping, Pumps and Valving:
$___________________
Mechanical - Control Building:
$___________________
Electrical Wiring & Equipment:
$___________________
Communications:
$___________________
Controls & System Programming:
$___________________
Chlorination System:
$___________________
Fluoridation System:
$___________________
Commissioning:
$___________________
Others (Specify):
$___________________
Others (Specify):
$___________________
Others (Specify):
$___________________
Cash Allowance - SCADA Programming:
$40,000
Cash Allowance - Maritime Electric:
$20,000
Cash Allowance - Radio Communications Equipment:
$10,000
Coles Associates Ltd.
Miltonvale Wellfield Development Phase 1C
Wellfield Controls and Systems
Charlottetown Water & Sewer Utility
Section 00 41 13
Bid Form
(Issued via Addendum #2) Page 8
Cash Allowance - As-Built documents and O&M Manuals:
$20,000
Cash Allowance - CW&SU unspecified additional work:
$100,000
SUBTOTAL
$___________________
TAXES
$___________________
TOTAL
$___________________
COMPANY: ____________________________________________________________
AUTHORIZED SIGNATURE: ______________________________________________
End of Section
Coles Associates Ltd.