EASTERN MUNICIPAL WATER DISTRICT
October 7, 2015
ADDENDUM NO. 5 TO SPECIFICATION NO. 1197S
TVRWRF 23 MGD Expansion
This addendum to the specifications is for the purpose of adding, clarifying, or deleting certain
information to the construction drawings and project specifications as follows:
NOTICE INVITING BID
Replace the following NIB-7 in its entirety:
NIB-7. Contract Time. No bid or bid security may be withdrawn for one hundred twenty (120)
calendar days after the date bids are received. The successful bidder shall, within seven (7)
calendar days after the District mails a notice of acceptance of bid, return the signed agreement
and bonds, and attend the pre-construction conference at the District office. The contract period
shall
commence
seven
(7)
calendar
days
from
the
date
of
the
Notice-of-Acceptance-of-Proposal. The Contractor shall complete all work, including
testing, within one thousand and two hundred (1200) calendar days.
Construction milestones and liquid damages are provided in specification section 00100
SC-06
BIDDING SHEETS
Revise the following bid items:
Item
1
Qty
1
Unit
LS
Unit
Price
Description
Mobilization and Approved:
Bonds,
Insurance,
and
Schedule of Values (see
Section
01026)
and
Preliminary Project Schedule
(PPS) (see Section 01310 and
01 32 00)
$
Preset
Total
$
2,200,000
(words)
Item
4
Qty
1
Unit
LS
Unit
Price
Description
Provide
control
system
programming and hardware
per
project
Contract
Documents
Total
Five hundred and thirty-one
thousand, six hundred
and seventy-seven dollars
$
Preset
$
531,677
(words)
Page 1 of 43
Specification No. 1197S
Addendum No. 5
Add the following to BS-6 EQUIPMENT AND MATERIAL:
NOTIFICATION OF SELECTED VENDOR
The District requires Contractor to identify the supplier for the Fine Bubble Air Diffuser System that
the Contractor based their bid upon. Contractor shall select one and only one.
SPECIFICATION
ITEM
Fine Bubble
Air Diffuser
System
VENDOR
SECTIONS
44 45 16.02A
Aerostrip
44 45 16.03A
Parkson
SELECTION
THE BIDDING SHEETS HAVE BEEN UPDATED AND ARE INCLUDED IN THE REVISED
PROPOSAL PACKAGED MADE A PART OF THIS ADDENDUM. FAILURE TO SUBMIT THE
REVISED PROPOSAL PACKAGE “MAY” DEEM YOUR BID NON-RESPONSIVE
ADDITIONALLY NAMED “OR EQUAL” MANUFACTURES
The District has received numerous requests from vendors and contractors to name additional
products within the technical specifications. The District has reviewed the requests and replies
with accepted additional named products in the table below. The named manufactures provided
in the table below by specification section are hereby added to the respective technical
specification as an “Or Equal”. The table below amends each of the specifications listed to allow
these manufacturers to be a supplier. However, the contractor and supplier must meet all
specification requirements. Being listed an “Or Equal” does not exempt the Contractor and
supplier from meeting all specification requirements. Only those “Or Equal” requests that have
been reviewed and accepted are provided below.
SECTION
13238A
( Appendix J)
ITEM
ADDITIONALLY
NAMED
MANUFACTURER
RPS Engineering
26 19 23
Aluminum Clarifier Covers
Medium Voltage Adjustable Frequency
Drive Systems
26 43 00
Surge Protective Devices
Eaton Cutler-Hammer
44 42 25.03
Formed Aluminum Flat Panel Cover
CST Industries
44 46 13.02
Screw Conveyor System
Atara Equipment and Spirac
44 46 22
Digester Gas Purification System
BioSpark
Page 2 of 43
Specification No. 1197S
Eaton Cutler-Hammer
Addendum No. 5
SECTION F - Labor & Construction
REPLACE Section F in its entirety.
SECTION H - Permits
ADD Encroachment permit from the City of Temecula
SPECIAL CONDITIONS
SC-03.
Construction Period and Requirements.
REPLACE SC-03. F. with following:
F.
00).
Preliminary Project Schedule (PPS) (see section 01310) (See sections 01310 and 01 32
SC-06.
Liquidated Damages.
REPLACE SC-06. MILESTONE 1 with the following:
Milestones
Description
Construction
Duration
(Calendar Days)
Milestone 1
Complete all work of including removal
and replacement for Plant 1 primary
clarifier covers and rehabilitation of Plant 2
primary inlet channel in accordance with
the specifications and contract drawings
provided in Appendix J
300
Liquidated
Damages
($/Calendar
Day)
$1,800
SC-07.
Construction Water.
REPLACE SC-07 with following:
For work under this specification, the Contractor can obtain recycled water, free of charge, upon
proper arrangements for metering its use from the Districts Resident Inspector at TVRWRF.
These are recycled water systems and are not suitable for human consumption.
Contractor shall provide all necessary piping and appurtenances, including pumps, to convey
water to work sites. Contractor shall be responsible for all costs associated with providing all
necessary piping, equipment and appurtenances to convey water to the work sites. Arrangements
for water from sources other than EMWD shall be the sole responsibility of the Contractor, and no
additional compensation will be allowed.
The recycled water shall not be used for concrete. Contractor shall use potable water for all
concrete activities. A potable water fire hydrant is located outside the gate along Avenida
Alvarado. Contractor shall obtain a permit from Rancho California Water District (RCWD) to use
this fire hydrant and supply all necessary appurtenances and RCWD approved flowmeter to
supply the potable water needed for all concrete activities. All the costs for permit, appurtenances,
and water consumption shall be included in the Contractor’s bid price.
Page 3 of 43
Specification No. 1197S
Addendum No. 5
SC-13.
Submission of Contract Documents and Submittals in Electronic Media
Format.
DELETE SC-13. Item No. 4 in its entirety
4.
O & M Manuals: 4 copies of single DVD VCD containing whole O & M Manual in pdf
format (searchable from Table of Content and bookmark) and 4 hard copies.
SC-16.
Markups for Negotiated Change Order Work.
REPLACE SC-16 with the following:
NEGOTIATED CHANGE ORDER WORK: MARKUPS SHALL NOT EXCEED THE FOLLOWING:
Labor Markup = 20%
Material Markup = 15%
Equipment Markup = 15%
Contractor Markup for Subcontractor Work = 5% or $250 (Whichever is greater)
Bonds = Actual premium (Separate Line Item) Contractor shall provide backup
documentation of the actual rate
Note: The cost associated with the project superintendent and pricing of the proposal shall be
considered part of the Overhead and Profit percentages previously noted.
SC-23.
Locator Wire.
REVISE SC-23 as follows:
Location wire is to be placed over all pipelines to be installed on this project as noted herein and as
shown on specified in Detail Provision Section 02718 and Standard Drawing B-656. Location wire
is also to be placed in conduit duct banks with the fiber to the junction boxes or hand holes closest
to the exterior of the buildings. Locator wire shall be 14-1 solid insulated copper wire (UF), in a
continuous strand. Locator wire shall terminate with 10 feet coiled at the hand holes. After all
trench backfill operations are complete, the District shall pay for and conduct the locatability test to
confirm that the wire is continuous. The Contractor shall be responsible for all costs to confirm,
locate and repair any breaks in the location wire identified in the locatability test. In addition, the
Contractor shall reimburse the District for all costs to retest repaired sections of the wire. The
Contractor is advised to use care in the installation and backfilling operations to prevent damage to
the wire.
SC-27.
Existing Underground Utilities and Potholing for Existing Utilities.
REVISE SC-27 as follows:
Unless otherwise indicated on the plans or directly by the utility owner, all utilities shall be protected
in place and service maintained as described in Division 31 of the Specifications. Utilities crossing
the proposed water pipelines alignment are plotted on the plan view of the plans.
The utilities were plotted based on information provided from the respective utility owners. The
accuracy of plotted utilities is not guaranteed as indicted in Section F-25 of the General Conditions.
Page 4 of 43
Specification No. 1197S
Addendum No. 5
Existing utilities have been identified and located on the plans based on the best
information available.
The Contractor is responsible for performing exploratory
excavations (potholing) along the alignment of the project to confirm location of existing
utilities which are across, adjacent or parallel to the alignment and to establish connection
requirements to existing pipelines. All Contractors under contract with EMWD are
hereby granted permission to use vacuum excavation on EMWD facilities. Vacuum
excavations may not be used on any other facilities unless written permission is
obtained from the owner of the facility in accordance with State Law 4216. The
Contractor shall field survey the elevation and location of utilities, including tie-in points,
and provide the information to the District’s inspector a minimum of two weeks ninety (90)
calendar days ahead of construction to permit design revisions should a conflict arise. All
associated costs with potholing shall be included in the bid price and no additional
compensation will be allowed.
SC-62.
Regional Water Reclamation Facility Solar Renewable Energy Design/Build
Project at TVRWRF in Appendix K
REPLACE second paragraph with following:
The Contractor is hereby notified that the solar project installed by others will not be completed
until April 1, 2016. The Contractor shall be responsible for coordination with the solar project and
providing all means and methods needed to work around the installed solar system. The District
will not compensate the Contractor for any interference or obstacle caused by the contractor
installing the solar system nor the final installed product as shown on the plans provided in
Appendix K.
SC-74.
Encroachment Permit Conditions (Issued in Addendum No.4)
DELETE SC-74 in its entirety. SC-74 is superseded by the City of Temecula Encroachment
Permit provided in this addendum.
SC-76.
Notification of Other Work Onsite.
ADD SC-76 as follows:
The Contractor is notified that other projects including, but not limited to, the following projects
will occur on the same site:
TVRWRF Plant 2B Aeration Panel Replacement Project (complete January 31, 2016)
TVRWRF Maintenance Building Project (complete April 1, 2016)
TVRWRF Solar Renewable Energy Project (complete April 1, 2016)
TVRWRF Primary Sludge and TWAS Pump Replacement Project (complete May 31,
2016)
TVRWRF Parallel Effluent Piping (start 10/1/2016, complete 12/31/2017)
The Contractor shall work corporately with other contractors to minimize conflicts. The TVRWRF
Parallel Effluent Piping project may close the site’s entrance at Alvarado for a period up to six
weeks. The Contractor shall use the south entrance as a temporary site access during this time
period. The District will not compensate the Contractor for any obstacle or interference caused
by these projects.
Note: the TVRWRF parallel effluent line work will be limited to the north end of the site (entrance
and storm channel).
Page 5 of 43
Specification No. 1197S
Addendum No. 5
SC-77.
Joint Inspection for Cement Mortar lined and Coated Steel Pipe.
ADD SC-77 as follows:
For sizes smaller than 30 inch, Contractor must provide closed circuit television inspection (CCTV)
as a post-construction method to determine if the pipeline has been installed as required and all
joints have been properly finished. CCTV system shall have a rotating lens camera with articulating
head. Each joint will be scanned 360 degrees. The television camera shall be specifically designed
and constructed for water pipe inspection. The camera shall be operative in 100% humidity
conditions. Lighting for the camera shall minimize relative glare. Lighting and camera quality shall
be suitable to provide a clear, in focus picture of the entire periphery of the water pipe for all
conditions encountered during the work. Focal distance shall be adjustable through a range from 6"
to infinity. The remote reading footage counter shall be accurate to one percent (1%) over the
length of the particular section being inspected. The camera, television monitor and other
components of the color video system shall be capable of producing a minimum of 350 line
resolution. Documentation consisting of a color video tape and a written report detailing the
condition of the mainline and joints shall be submitted to EMWD for approval prior to pressure
testing.
Any defects in the pipe lining or joints, shall be repaired and another video taken of the repaired
section and submitted for approval by EMWD prior to pressure testing. For domestic water
systems, all video equipment must be certified for DOMESTIC WATER LINE INSPECTION ONLY,
and NEVER to have been utilized in a non-potable system.
SECTION P – CONTRACT DRAWINGS
ADD the following new drawings:
Standard Detail 3123-110
Standard Detail 3123-115
Standard Detail 3312-655
REPLACE the following drawings (revisions are shown as clouded areas):
Drawing 01C10
Drawing 01D01
Drawing 01Y02
Drawing 01Y05
Drawing 40M05
Drawing 01E18
Drawing 01E22B
Drawing 01E24
Drawing 13E02
Drawing 40E03
Drawing 71E03
Drawing 13N03
Drawing 40N01
Drawing 40N02
Standard Detail 3520-280
Page 6 of 43
Specification No. 1197S
Addendum No. 5
MODIFY the following drawings as described (modifications by comments):
All Drawings
1. Lower right corner of the border for each Drawing; revise total number of sheets from “332” to
“331”.
2. Revise any reference to the California Building Code (CBC) to be the “2013 CBC”.
Drawing 01Y03
1. Revise C.G. Elev for points 68, 69 and 70 from “1009.96” to “1004.50”.
Drawing 01Y04
1. Revise the callout “4” STANDPIPE TO EXTEND 6’ ABOVE GROUND” (shown just below the
callout for Detail B on 01Y10) to read “3” V740 PER B-598”.
Drawing 01Y06
1. Version issued in Addendum 4, at the TEPS, revise the “24” TE” (two), the “36” TE” (two)
callouts within the clouded area to read as follows: “SEE DWG 70P01”.
2. Add the following dimensions for the 6” SA: pipe segment from North to South “CENTERLINE
5’ FROM CENTERLINE OF 16” OOC” and for pipe segment from East to West “CENTERLINE
5’ FROM NEW CCB OUTSIDE WALL”.
3. Add note 3 to read as follows: “3. MATERIAL FOR THE EXISITNG 10” TWW IS UNKNOWN,
FOR BIDDING PURPOSES ASSUME CLDI. CONNECT TO EXISTING USING
RESTRAINED FLEXIBLE COUPLINGS.”
Drawing 01Y09
1. Detail 5, revise the piping connections to WSP per Pipe Schedule for the 36” TE and revise
“36” DIP” callout to “36” TE”.
Drawing 01Y10
1. Revise the callout “4” STANDPIPE TO EXTEND 6’ ABOVE GROUND” to read “3” V740 PER
B-598”.
Drawing 01Y11
1. Add on lower right corner: “SHT 50A OF 331” and “D-51246”.
Drawing 11M02
1. Revise the standard detail callout from “3580-700” to “3520-700”.
Drawing 13M01
1. Revise the equipment tag number for the compressed air receiver from “13-AT-910” to
“13-T-900”.
Drawing 13M03
1. Section A, upper left-hand side of the drawing, revise the “2” V205” callout to “2” V306”.
2. Section A, revise center line elevation for the 10” FA buried pipe from “1024.43” to “1020”.
3. Drawing provided in Addendum 2, extend cloud to enclose Note 4 above in its entirety.
Page 7 of 43
Specification No. 1197S
Addendum No. 5
Drawing 13M06
1. Section D, on the left-hand side of the page, revise the callout “6” V405” to “6” FV-172”.
2. Section D, on the upper left-hand side of the section, revise the callout “2” V300” to “2” V306”.
Drawing 13M07
1. Add the following at the end of note 2: “THE SECTION OF 4” D LOCATED UNDER THE
CONCRETE SLAB AND UNDER THE FINE SCREEN STRUCTURE SHALL BE CONCRETE
ENCASED PER 0330-016. PROVIDE FLEX COUPLINGS (PER 4027-614) ON THE
EXPOSED PORTION OF THE PIPE THAT IS BELOW THE PRIMARY EFFFLUENT
CHANNEL PENETRATE WALL PER 4027-607.”
Drawing 20S01
1. Revise dimension between gridlines 5 and 6 from “45’-6”” to “44’-6””; between gridlines 6 and
7 from “62’-0” to “64’-0””, between gridlines 8 and 9 from “52’-0”” to “54’-0””.
Drawing 20S03
1. Revise dimension for walkway near gridline B from “4’-6” to “4’-0”.
Drawing 20M01
1. Pipe support callout on the upper left side of the drawing for the 18” FSE vertical pipe, revise
the pipe support from “4005-505” to “4005-511”.
Drawing 20M02
1. Pipe support callout on the upper middle portion of the drawing (between the two match lines)
for the 18” FSE vertical pipe, revise the pipe support from “4005-505” to “4005-511”.
Drawing 20M05
1. Section A, 18” FSE vertical pipe, revise the pipe support from “4005-505” to “4005-511”.
Drawing 22M03
1. Section A, upper right-hand side of the section, revise “6” VENT” to “6” VENT (SAME PIPE
MATERIAL AS FOR RAS SERVICE).”
Drawing 30S07
1. Revise note on BRIDGE CRANE FRAMING PLAN to read “SUNSHADE CANOPY ON
BRIDGE CRANE FRAMING APPROXIMATE PLAN DIMENSIONS 62 FT X 77.5 FT, SEE
NOTE 4 ON DWG 30S02.”
Drawing 31S02
1. Add the following note: “1. A DOWNSPOUT IS REQURIED AT EACH SPLASH BOX
SHOWN ON 31S01.”
Drawing 30M01
1. Between gridlines 13 and 14, revise the three callouts from “16” MD” to “18” MD”.
2. Revise the “24” MD” callout to “18” MD” (located just below the pipe feeding 30-P-410).
Drawing 30M06
1. Section E, add the following callout “2”D with 4” HUB (TYP OF 4)” and point to the flared
portion of the drain pipe receiving the ¾” D from the equipment.
Page 8 of 43
Specification No. 1197S
Addendum No. 5
2. Enlarged Plan, add the following note: “3. IA IS INSTRUMENT AIR AND ALL PIPING AND
APPURTENANCES SHALL BE TYPE 316 STAINLESS STEEL.”
Drawing 33M01
1. Add note 2 to the PLAN: “2. FOR HUB DRAIN AND CRD PPE, SEE DWG 30M02.”
Drawing 40S01
1. Note 7, add the words “AND BETWEEN GRIDS O AND M” before the words “FOR SIMILAR
PENETRATION.”
Drawing 40M01
1. Revise the tag numbers for the two Out of Compliance Pumps from “40-P-303” to “35-P-303”
and from “40-P-304” to “35-P-304”.
2. Add the following note: “3. THE AREA FOR THE OUT OF COMPLIANCE EQUIPMENT,
INSTRUMENTS AND DEVICES SHALL BE 35 AND THE AREA FOR THE CHLORINE
CONTACT BASIN EQUIPMENT, INSTRUMENTS AND DEVICES SHALL BE 40.”
Drawing 40M02
1. Revise the tag numbers for the two Out of Compliance Pump System as follows:
From “40-P-303” to “35-P-303”
From “40-P-304” to “35-P-304”
From “40-AVRV-303” to “35-AVRV-303”
From “40-AVRV-304” to “35-AVRV-304”
From “40-ARV-300” to “35-ARV-300”.
2. Add the following note: “2. THE AREA FOR THE OUT OF COMPLIANCE EQUIPMENT,
INSTRUMENTS AND DEVICES SHALL BE 35 AND THE AREA FOR THE CHLORINE
CONTACT BASIN EQUIPMENT, INSTRUMENTS AND DEVICES SHALL BE 40.”
Drawing 40M03
1. Section B, revise the tag numbers for Out of Compliance Pump 4 from “40-P-304” to
“35-P-304”.
2. Add the following note: “3. THE AREA FOR THE OUT OF COMPLIANCE EQUIPMENT,
INSTRUMENTS AND DEVICES SHALL BE 35 AND THE AREA FOR THE CHLORINE
CONTACT BASIN EQUIPMENT, INSTRUMENTS AND DEVICES SHALL BE 40.”
Drawing 40M07
1. Revise the tag numbers for the two Out of Compliance Pumps from “40-P-303” to “35-P-303”
and from “40-P-304” to “35-P-304”.
2. On Section 2, revise note 3 to read as follows: “3. PROVIDE PVC BLIND FLANGE WITH
OPENINGS FOR FLEXIBLE TUBING AND MOTOR CABLE.”
Drawing 50M02
1. Partial Plan 1, revise “6” V405 IN VERTICAL” to read “6” V634 IN VERTICAL” ”
2. Add note 2 to read as follows: “2. PIPING SYSTEM FOR POLY SERVICE SHALL BE PVC
SCHEDULE 80 AS SPECIFIED IN SECTION 40 27 00.10.”
Page 9 of 43
Specification No. 1197S
Addendum No. 5
3.
Add note 3 to read as follows: “3. 50-MV-140 SHALL BE A 6” V405, SUITABLE TO HANDLE
400 GPM OF WAS FOR OPEN/CLOSE APPLICATION. CONTROL FEATURES SHALL
INCLUDE B THRU E AND K AS DEFINED IN THE ELECTRIC VALVE SCHEDULE
SUPPLEMENT IN SPECIFICATION SECTION 40 27 02.”
Drawing 50M03
1. Section A, revise the tag number from “PI-311" to “PIT-311”.
Drawing 50M07
1. Add the following note: “7. MATERIAL OF EXISTING 12” D MAY BE CLDI, CONTRACTOR
TO FIELD VERIFY. CONNECT NEW PIPING TO EXISTING PIPING USING A
WYE-FITTING AND FLEXIBLE COUPLINGS, SIMILAR TO DETAIL 3 ON 01Y09.”
Drawing 71SM01
1. Add a butterfly valve between the existing 72” TE header and each of the new 30” flexible
couplings on the new 30” TE pipes feeding the cans. Add callouts “30” V504” and “4027-641”
(standard detail for valve box) to each of the added butterfly valves.
2. Add a butterfly valve between the new 72” TE header and the new 30” flexible coupling on the
new 30” TE pipe feeding the future can. Add callouts “30” V504” and “4027-641” (standard
detail for valve box) to the added butterfly valve.
Drawing 71SM02
1. Add a butterfly valve between the existing 72” TE header and the new 30” flexible coupling on
the new 30” TE pipe feeding the can. Add callouts “30” V504” and “4027-641” (standard detail
for valve box) to the added butterfly valve”.
Drawing 71M02
1. Section A, revise centerline elevation for 24” RW from “1009.96” to “1004.50”.
2. Revise note 1 to read: “SEE SPECIFICATION SECTION 33 12 17, SURGE CONTROL
SYSTEM FOR TYPES OF NOZZLES.”
3. Add the following note: “3. PROVIDE 2” D FROM COMPRSSED AIR SYSTEM TO EXISTING
DRAIN PIPING BY EXISITNG TE PUMPS. ROUTE AND CONNECT AS NECESSARY.”
Drawing 71M03
1. Section C, revise centerline elevation for 24” RW from “1005.75” to “1004.50”.
Drawing 01E14
1. Existing Partial MCC-18, revise the tag numbers for the two Out of Compliance Pumps from
“40-P-303” to “35-P-303” and from “40-P-304” to “35-P-304”.
Drawing 01E22
1. Motor Control Diagram for the Out of Compliance Pumps, revise “40-MTR” to “35-MTR” and
“AREA 40” to “AREA 35”.
Drawing 01E26
1. Drawing provided in Addendum 4, at Panel LP-21C1, add cloud and triangle with a 4 to the
value of “12.8” next to ‘Total Load KVA’.
Page 10 of 43
Specification No. 1197S
Addendum No. 5
Drawing 01E28A
1. For ID tag 40C001, revise information in CONDUCTORS column to read: “2-5C TYPE 1,
5#14”.
2. Revise conduit ID tag “40C002” to “35C002”, and equipment tag “40-P-303/304” to
“35-P-303/304”.
3. Revise conduit ID tag “40C003” to “35C003, and equipment tags “40-AFD-303” to
“35-AFD-303” and “40-P-303” to “35-P-303”.”
4. Revise conduit ID tag “40C004” to “35C004”, and equipment tags “40-AFD-304” to
“35-AFD-304” and “40-P-304” to “35-P-304”.
5. Revise conduit ID tag “40C007” to “35C007”, and equipment tag “40-AFD-303” to
“35-AFD-303”.
Drawing 01E28
1. Revise the CONDUCTORS PER CONDUIT column for row 13C001 from “26” to “32” and for
row 13C002 from “19” to “25”.
2. Revise the CONDUCTORS column for row 21C015 from “62” to “68” and for row 21C016 from
“55” to “61”.
Drawing 01E28B
1. Revise conduit ID tag “40C008” to “35C008”, and equipment tag “40-AFD-304” to
“35-AFD-304”.
Drawing 21E01
1. Revise “LCP-20D” to “LCP-20P” (see the southwest corner of the electrical room).
2. Add “LCP-20A” just south of “20-700GT”.
Drawing 40E01
1. Revise the following tag numbers:
From “40-P-303” to “35-P-303”
From “40-P-304” to “35-P-304”
From “40-FE-303” to “35-FE-303”
From “40-FIT-304” to “35-FIT-304”
2. Add the following note: “1. OUT OF COMPLIANCE PUMP SYSTEM AREA SHALL BE 35.”
Drawing 40E02
1. Revise the note pointing to the light fixtures to read as follows: “TYPE 8 FIXTURE (TYP OF
10)”.
Drawing 71E03
1. Add on lower right corner: ‘SHT 331 OF 331” and “D-51245”.
Drawing 13N02
1. Delete the manual plug valve upstream of the mixing system in the primary scum wet well.
Page 11 of 43
Specification No. 1197S
Addendum No. 5
2. On the left side of the drawing, delete “2-POLY FROM EXISTING PORTABLE SYSTEM”,
”POLY”, the two arrowheads and line associated with the polymer.
Drawing 13N04
1. Delete the 2 stars (**) next to “WASHWATER BOOSTER PUMP” shown on the upper left-hand
side of the drawing.
Drawing 30N01
1. Revise the callout “PD” from the membrane tanks to the Membrane Tank Drain Pumps to
“MD” (typ of 3 places).
Drawing 50N01
1. Upper left corner of the drawing, revise the callout “RIO-5” to “RIO-5A”.
Drawing 71N01
1. Add a butterfly valve on the suction side to the new TE pumps between the existing TE header
and each of the new 36” TE pipes feeding the cans.
Drawing 60SM02
1. Add note 2 to read as follows: “2. FOR LADDER, SEE STANDARD DETAIL 0551-101.”
Drawing 60E06
1. Conduit and Cable Schedule, add the following information as the last row in the table
(semicolons separate the information for each column): “60S004”; “4”C”; “40#12, 1#12G, 10
TYPE 3”; “60-LCP-400”; “ “; “MCC-23”; “ “
EMWD DETAILED PROVISIONS
SECTION 01026
Schedule of Values
REPLACE following Schedule of Value items issued in bid document:
Item
No.
Qty
Unit
Description
Unit Cost
1
1
LS
Mobilization and Approved: Bonds, Insurance,
and Schedule of Values (see Section 01026)
and Preliminary Project Schedule (PPS) (see
section 01310 and 01 32 00)
Preset
Page 12 of 43
Specification No. 1197S
Total Cost
$2,200,000
Addendum No. 5
2
Provide complete membrane system equipment
in accordance with the Contract Documents
(including costs for sales tax, receiving,
unloading, storage, installation, testing).
1
payment schedule
1- Contractor pays 15% of the pre-negotiated
price plus applicable sales taxes at issuance of
purchase order.
Payment 1
2- Progress payments by contractor to GE shall
total 35% of the pre-negotiated price plus
applicable sales taxes for receipt of equipment
less membranes. Contractor and GE shall
determine schedule of delivery of equipment
and progress payment schedule. However, GE
shall not be paid more than 35% in addition to
the Milestone 1 payment upon completing
equipment delivery less membranes.
Payment 2
Payment 3
3- Contractor pays 15% of the pre-negotiated
price upon delivery of the Membrane equipment
to GE plus applicable sales taxes.
Payment 4
4- Upon mobilization for the start of
commissioning services, Contractor shall pay to
GE 10% of the pre-negotiated price plus
applicable sales taxes.
Payment 5
5- Upon completion of commissioning the
contractor shall pay to GE 15% of the
pre-negotiated price plus applicable sales taxes.
6- Upon completion of performance testing the
Payment 6
contractor shall pay to GE 5% of the
pre-negotiated price plus applicable sales taxes.
4
1
LS
Provide control system programming and Preset
hardware per project Contract Documents.
$531,677
ADD the following Schedule of Values items:
Item
No.
Qty
Unit
51
1
LS
Page 13 of 43
Description
Furnish, install, operate, and remove
groundwater treatments system as required in
Section 02222.
Specification No. 1197S
Unit Cost
Total Cost
Lump Sum
Addendum No. 5
SECTION 01140
Work Restrictions
ADD Paragraph Q to 1.05 as following:
Q.
Work Restrictions for Plant 1 Clarifiers Covers and Plant 2 Inlet Channel Repair.
Three Plant 2 primaries shall be maintained in operation at all times (only one out of
service for work at a time) except for short duration Plant 2 shutdowns allowed for
installation of bulkheads or temporary decking. The Contractor may utilize temporary
bulkheads with sufficiently sized pipe interconnections, installation of a temporary safety
deck, or by-pass pumping in order to perform work in the Plant 2 Inlet Channel. By-pass
pumping capacity shall be based on criteria provided for by-pass pumping of Headworks
work with each of three operating primaries receiving roughly a third of the volume
entering Plant 2. Bulkheads and temporary decking are to be designed and provided by
Contractor. Installation and removal of bulkheads or temporary decking shall be
performed during a 4-hour shutdown of Plant 2 the hours of 2:00 AM and 6:00 AM.
Contractor shall repair all concrete surfaces damaged by temporary structures to original
condition. Contractor shall provide detailed isolation plan and schedule to District four
weeks prior to execution for review and acceptance by the District.”
SECTION 03300
Cast-in-Place Concrete (Custom)
REVISE Paragraph 3.09.A as follows:
A.
Within 5 days following the removal of forms, the following finishing operations
shall be performed.
No other finishing operations are required for
permanently concealed concrete (i.e., concrete below permanent ground
surface) or operating water level). When specifically approved by the
Engineer, finishing of concrete may be performed by units, (i.e. a complete
wall, a complete structure, etc.), in which case 10% minimum concrete
payment shall be retained for the finishing operation.
REVISE Paragraph 3.09.B as follows:
B.
In addition to Part 3.09.A, all exposed interior and exterior formed concrete
(i.e., concrete not permanently concealed from direct visible exposure under
facility operating conditions, including gallery and equipment room walls and
ceilings), and all concrete to be coated in the finished structure shall, in
addition to the foregoing, be Brush-Off Blast Cleaned (SSPC-SP7-63) to open
all paste and air holes and to remove curing compound and dust. It shall then
be rubbed with cement of consistent color and burlap and/or with brick and
water to eliminate pockets and produce reasonable smooth surfaces suitable
for painting. A reasonable smooth surface shall be defined as a surface with
no projections or form marks greater than 1/16 of an inch and no indentations
after finishing. Chamfers and fillets shall be made straight and true, and
uniform.
Concrete to be temporarily concealed until facility is expanded shall be
considered exposed concrete.
Page 14 of 43
Specification No. 1197S
Addendum No. 5
TECHNICAL SPECIFICATIONS
ADD the following specification sections or supplements:
Section 01310 - Project Control Schedule
Section 40 27 00.23 Cast Iron Soil Pipe (CISP) and Fittings (Data Sheet)
REPLACE the following specification sections or supplements:
Section 01 50 00
Section 40 90 00
Section 40 90 00
Temporary Facilities and Controls
Instrumentation and Controls for Process Systems, Supplement 6 – PLC
Input/Output List.
Instrumentation and Controls for Process Systems, Supplement 7 – PLC
Components.
MODIFY the following specification sections as described (modification by comment):
Section 01 31 13, PROJECT COORDINATION
1. Paragraph 1.04.B, revise to read as follows “Project Milestones: See SC-06.”
Section 01 91 14, EQUIPMENT TESTING AND FACILITY STARTUP
1. Paragraph 3.04.D, revise the words “of the Membrane Equipment System.” to “of any of the
new equipment systems.”
Section 10 14 00, SIGNAGE - SUPPLEMENT
1. Page 2 of the Supplement, last row for type H signs, revise the number of signs for this row
from “3” to “5”.
Section 26 13 15, MEDIUM-VOLTAGE PAD-MOUNTED CAPACITOR BANKS
1. Paragraph 1.02.A.14, revise it to read “Mounting Location: Intended to replace existing
capacitor bank removed by SCE. Reuse existing location and provisions.”
Section 26 19 23, MEDIUM-VOLTAGE ADJUSTABLE FREQUENCY DRIVE SYSTEM
1. Paragraph 1.01.A, revise second sentence to read as follows: “Each AFD shall consist of an
integral lineup of all the components listed herein and shall not exceed 66 inches wide, 50
inches deep, and 9 feet high.”
Section 40 13 00, STATION MONITORS
1. Paragraph 1.01.A, revise to read “Section Includes: Standpipe mounted station monitors for
washdown of Basins.”
Section 40 27 00, PROCESS PIPING – GENERAL, SUPPLEMENT: PIPE SCHEUDLE
1. For row CHANNEL AIR, under column REMARKS, add “NOTE 11”.
2. For row SANITARY VENT, under column SPEC SECTION, revise “40 05 13” to read “40 27
00.23”.
3. On page 2 of Piping Schedule under NOTES, revise note 11 to read as follows: “ALP, AS, &
CHA EXPOSED PIPING SHALL BE INSULATED WITHIN 6’-0” FROM FLOOR/GRADE OR
ACCESS POINT, FOR PERSONNEL SAFETY.”
Page 15 of 43
Specification No. 1197S
Addendum No. 5
4. On page 2 of Piping Schedule, under NOTES, revise note 12 to read as follows: “DRAIN (D)
PIPING IN THE CHLORINE CONTACT BASIN AND THE DIGESTER GAS EQUIPMENT
AREA SHALL BE CPVC, PER SECTION 40 27 00.11.”
Section 40 27 02, PROCESS VALVES AND OPERATORS
1. Paragraph 2.05.G, add the following:
“12. Type V710 Pressure Reducing Valve 2-1/2-Inches and Smaller:
a. Direct diaphragm operated, spring controlled, bronze body, NPT threaded ends, 200
psig rated minimum.
b.Size as shown on Drawings. For flow see Instrument List. Inlet pressure between 80
and 100 psig. Outlet pressure as required for the application.
c. Manufacturers and Products:
1) Fisher, Type 75A
2) Watts, Series 223
3) Or Equal.”
Section 40 27 02, PROCESS VALVES AND OPERATORS – SELF-REGULATED VALVE
SCHEDULE SUPPLEMENT
1. Row for “40-ARV-300”, revise “40-ARV-300” to “40-ARV-303, 40-ARV-304”.”
Section 43 40 02, FIBERGLASS REINFORCED PLASTIC TANK
1. Tank Data Sheet for CIP / BP Tank, revise tag # from “30-TK-001” to “31-TK-001”
Section 44 42 19.05, VARIABLE-SPEED TURBO AIR BLOWERS
1. Add the following:
“2.06 ACCESSORIES
A. Equipment Identification Plate: 16-gauge stainless steel with ¼-inch die-stamped
equipment tag number securely mounted in readily visible location.
B. Lifting Lugs: Equipment weighing over 100 pounds.
C. Anchor Bolts: Type 316 stainless steel, sized by equipment manufacturer, ½-inch
minimum diameter as indicated.”
Section 44 42 25.03, FORMED ALUMINUM PANEL FLAT COVERS
1. Paragraph 1.03.A, second sentence, revise the words “period of 6 months” to “period of 12
months”.
2. Paragraph 2.04.A, revise to read: “Shall be 3003-H16, 6061-T6, 5052-H32, or 5052-H36 and
shall have minimum thickness of 0.090 inches.”
3. Paragraph 2.04.B. add “Doors and Hatches:” at beginning of sentence.
4. Paragraph 2.05.A, revise “Type 304 stainless steel” to “Type 316 stainless steel”.
5. Paragraphs 2.05.B.1, 2.05.C, 2.05.E, and 2.05.G, revise “Series 300” to “Type 316”.
Page 16 of 43
Specification No. 1197S
Addendum No. 5
Section 44 42 56.03, OUT OF COMPLIANCE BYPASS VERTICAL TURBINE PUMP DATA
SHEET
1. Revise the following tag numbers “40-P-303” to “35-P-303” and “40-P-304” to “35-P-304”.
Section 44 42 56.05, SUBMERSIBLE CHOPPER SCUM PUMPS
1. Paragraph 1.03.A.1.a, revise to read as follows: “Make, model, weight, and horsepower of
each equipment assembly and complete catalog information, descriptive literature,
specifications, and identification of materials of construction.”
2. Add paragraph 3.02 as follows:
“3.02. MANUFACTURER’S SERVICES
A. Manufacturer’s Representative: Present at Site or classroom designated by
Owner, for minimum person-days listed below, travel time excluded:
1. 1 person-day for installation assistance and inspection.
2. 1 person-day for functional and performance testing and completion of
Manufacturer’s Certificate of Proper Installation.
3. ½-person-day for prestartup classroom or Site training.
4. 1 person-day for facility startup.
5. 1 person-day for posts-startup training of Owner’s personnel. Training shall
not commence until an accepted detailed lesson plan for each training
activity has been reviewed by Engineer.
B. See Section 01 43 33, Manufacturers’ Field Services and Section 01 91 14,
Equipment Testing and Facility Startup.”
Section 44 42 56.16, PERISTALTIC HOSE METERING PUMPS – DATA SHEET
1. Footer on page 1 of the data sheet, revise “43 21 29.01 SUPPLEMENT -1” to read “44 42
56.16 SUPPLEMENT – 1”.
Section 44 46 13.02, SCREW CONVEYOR SYSTEM
1. Delete Paragraph 1.07.B.7.
2. Under paragraph 1.03.B, add the following: “7. Separate certification from the spiral
manufacturer certifying that the spiral meets the minimum specified hardness and yield
strength requirements and is crack-free as determined by a dye-penetration examination.”
Section 44 46 16.02, FINE BUBBLE AIR DIFFUSER SYSTEM
1. Paragraph 1.07.1, add “20” next to each of the following: “Compression Fittings (each kind)”,
“Strip fasteners” and “Support plates”.
Section 44 46 20, DIGESTER GAS SAFTY EQUIPMENT AND SPECIALTIES
1. Paragraph 1.04.A.1, revise to read as follows: “Warranty for workmanship and materials
shall be as required in the front end documents.”
Section 44 46 22, DIGESTER GAS PURIFICATION SYSTEM
1. Revise Paragraph 2.08.3 to read “A managed copper Ethernet switch shall be provided in
the LCP to interface with the PLC to the plant controls system (PCS) and OI.”
Page 17 of 43
Specification No. 1197S
Addendum No. 5
2. Revise Paragraph 2.08.B.4 to read “The Digester Gas Purification System manufacturer
shall provide all programming and system configuration necessary to make the PLC, OI, and
PLC network communications fully functional as describe herein.
a. Provide a block of read and write registers for analog and discrete signals that can be
directly interfaced by the PCS.”
Section 44 46 30, FINE SCREENING EQUIPMENT
1. Table under 1.03.A, revise the last two rows to read “See 01G14 and 01G15” under column
UNIT.
APPENDIX E
REPLACE Appendix E in its entirety.
APPENDIX F
REPLACE the following drawings (Revised drawings issued in Addendum No. 4. Per City of
Temecula Permit requirement now, revisions are not needed any more, so original drawings are
issued in this addendum to replace drawings issued in Addendum No. 4):
Sheet 4 of 9 0572550 C
Sheet 5 of 9 0572550 C
Sheet 6 of 9 0572550 C
APPENDIX I
REPLACE the following drawings:
PV2 –Site Plan
APPENDIX J
Section 01010, SCOPE OF WORK
1. Paragraph 1.02 c, remove “(2) new Safety Tie-Off points” as follows:
“Install two (2) new Davit Crane bases per contract drawings. Approximate locations are shown
on the drawings.”
2. Paragraph 1.03, replace quantity of primary channels allowed to be shut down from (2) to (1) as
follows:
“• One (1) primary channel in Plant 2 may be shutdown at a time”
Section 13 23 8A, DESIGN CRITERIA
1. REPLACE Paragraph 1.02 B with the following:
B. Standard Panel Design Criteria: As follows in accordance with Uniform Building Code:
1. 40 pounds per square foot live load plus dead load.
2. Concentrated load of 300 pounds on an area of 2.5 feet by 2.5 feet anywhere on
the cover.
3. Maximum deflection of L/180 for loads.
Page 18 of 43
Specification No. 1197S
Addendum No. 5
2.
REPLACE Paragraph 1.02 C with the following:
C. Specially Reinforced Load Bearing “Walkable” Panel Criteria: As follows:
1. 40 pounds per square foot live load plus dead load.
2. Concentrated load of 300 pounds on an area of 2.5 feet by 2.5 feet anywhere on the
cover.
3. Maximum deflection of L/240 for loads.
3.
REPLACE Paragraph 1.02 E with the following:
E.
4.
ADD “or 5052-H32” to Paragraph 2.02 A, as follows:
A.
5.
Wind Load: California Building Code Design Exposure C and wind speed of 100 miles
per hour especially for uplift, unless otherwise specified.
Aluminum Sheet: 5052-H36 or 5052-H32 alloy, minimum 0.090 inches thick,
mill-finished.
ADD “or 3/8” Neoprene” to Paragraph 2.02 C, as follows:
C. Closure-flashing-to-panel Seals: 3/8-inch Hypalon or 3/8-inch neoprene gaskets.
6.
REMOVE Paragraph 2.02 J its entirety from specifications.
ADDENDUM No. 2
DELETE following specification sections:
Section 02718 INSTALLATION OF WATER PIPELINE
ADDENDUM No. 4
1. REMOVE any items related to Drawing 33M02. This Drawing is not part of the Bid
Documents set or any addenda.
2. Attachment F of Addendum No.4, REPLACE TVRWRF Power System Analysis Report
(dated 8/14/2015 by PES) with TVRWRF Power System Analysis Report (dated 9/30/2015
by PES)
Page 19 of 43
Specification No. 1197S
Addendum No. 5
QUESTIONS & ANSWERS
Balfour Beatty Infrastructure, Inc.
Q1.
Please clarify the answer given in Addendum No. 2 to the Kiewit Question No. 17 on page
26 of 52, for the required resumes that need to be submitted for the person in charge of
SRF Funding paperwork and foreman. These positions are filled by specific job need and
are not normally staffed positions. Please reconsider this requirement to submit resumes
for these positions with our bid.
A1.
The District provided a response to Kiewit question by providing a minimum preferred list of
resume. No clarification is needed.
Q2.
F-23 (A). The Owner has accepted A/A bond forms in the past, would they be willing to
accept them for this project?
A2.
No.
Q3.
F-14 (A). The one year warranty is currently from final acceptance – Substantial completion
would be a more appropriate time frame to start the warranty period. Please advise if this is
acceptable?
A3.
Please see revised General Conditions F-13.A and F-31.G.
Q4.
Please clarify where the vertical 3” WW line goes to on drawing 13M02. At the 4”x3” Tee,
the horizontal line goes around the corner however, the vertical line going down is not
shown in the P&ID or drawings.
A4.
See Addendum 4.
Q5.
The 12” PSL shown on B/13M03 is detailed as a weld pipe. Is it welded steel stainless steel
or ductile iron pipe?
A5.
See Addendum 2 (revisions to Drawing 13M06).
Q6.
Please review the attached brochures with technical detail pertaining to the following:
26 43 00 SURGE PROTECTIVE DEVICES
26 19 23 MEDIUM VOLTAGE ADJUSTABLE FREQUENCY DRIVE SYSTEM
Eaton Electrical is requesting that we are allowed to bid, the Surge Protective Devices,
Medium Voltage Adjustable Drive Systems. Eaton is a world leading manufacturer of these
devices. While the Surge Protective devices can be integrated into equipment or side
mount, we meet the specifications with the exception of the side mount devices are rated at
-40 to 50 deg C. Our Medium Voltage Adjustable Frequency Drive offering is best of class.
We are an equal to Siemens, Robicon, Toshiba, and TMEIC with additional features. Some
highlights are:
1. The robust design of the fully-encapsulated, environmentally-sealed SC9000 EP
inverter.
2. The high component count of our competitors power cell design has an inherently lower
MTTF and lower reliability than Eaton’s MV IGBT inverter.
3. The SC900 Encapsulated Power pole modules are field serviceable and the entire
inverter with roll-in/roll-out design can be quickly replaced.
4. Especially impervious the H2S problems in WWTP plants
5. Complete burn-in under full load at factory
Page 20 of 43
Specification No. 1197S
Addendum No. 5
A6.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Benshaw Advanced Controls
Q1.
Please consider a request for Benshaw to be added as an "or equal for
the Membrane Blowers, 300HP, AFD'S, 31-B-111 thru 31-B-131. Process Blowers,
300HP, AFD'S, 21-B-421 thru 21-B-921 and Out of Compliance By Pass Pumps, 75HP,
AFD'S 40-P-303 & 40-P-304.
There will be no additional costs to the owner and the VFD'S will fully comply with the
Specifications 26 29 23. Benshaw will offer at no additional cost to the owner a 3 yr
warranty. Benshaw has been a supplier of these IEEE 519, 18-Pulse, Adjustable
Frequency Drives to EMWD Since 2005.
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Bergelectric Corp.
Q1.
Drawing 00N01 “Network Routing Diagram” the notes ask for the contractor to provide (3)
12 strand single-mode fiber optic cables and (3) 12 strand multi-mode fiber optic cables to
specific locations. Are these the only fiber optic cables included in the RFP associated with
this drawing? Are the fiber optic cables detailed in the drawing not included in the RFP?
A1.
All fiber shown on network routing diagram, and fiber mentioned in notes is included in
RFP. Please refer to the conduit schedules for additional details.
Q2.
Are the fiber optic cables detailed in Drawing 02E04 ‘Closed Transition Fiber Optic Path
Schematic” included in the RFP?
A2.
Yes.
Q3.
Are the fiber optic cables detailed in Drawing 01E28B “Conduit and Cable Schedule 3”
included in this RFP?
A3.
Yes, conduit shown on 01E28B, cables shown on 02E04, Attachment B in the bid
document Volume 4 - Contract Drawings.
Q4.
Are the electronic components detailed in Drawings TV-FIBER-1002, TV-FIBER-2002,
TV-FIBER-3003, and TV FIBER-4002 included in this RFP?
A4.
The Local Control Panels and internal components detailed in Appendix A are included in
this RFP. Refer to Specification Section 17710 for references to Appendix A.
Q5.
Is fusion splicing “fiber optic pigtails” an approved installation procedure for this RFP?
A5.
Refer to Specification Section 16125.3.03.G for splicing requirements.
Q6.
Specification 26 32 13.13 Diesel Generator – Are Kohler, Cummins, Generac and MTU
acceptable “Or Equals” to the specified?
A6.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q7.
Sheet 02G01 General Note #3 – The Field Study described will take some considerable
time to do. How will this be accomplished prior to bid so we can accurately carrying costs
associated with this work?
Page 21 of 43
Specification No. 1197S
Addendum No. 5
A7.
The Contractor has the responsibility for due diligence for the bid (response is based on the
question referencing General Note 4. not 3.
Q8.
Sheet 02G01 General Note #6 – Who is responsible for doing this study?
A8.
The Contractor.
Q9.
Sheet 02E05 Note #1 – Refers to Specification 26 32 13.13 for Retrofit requirements.
Where in this specification does it specify this information?
A9.
02G01 General Notes 4 and 5 describe the requirements to retrofit the existing governors
and voltage regulators. 02E05 Note 1 directs the Contractor to the location of the
description of the requirements for the new governors and voltage regulators.
Clarification to Question 1 in Addendum 2
Q1. Sheet 40E02 – Are the ten light fixtures shown as type 10 a double head fixture with a Type
10 & Type 8 head?
A1.
See revision to Drawing 40E02 included under Contract Drawings in this addendum.
C.P. Crowley
Q1.
SECTION 43 22 56.02 SUPPLEMENT -1 Manufacturers and product- (3) Grundfos,
AMG/SMG
The Charles P. Crowley Company (CPC Co.) is the local sales representative for Grundfos
Submersible Mixing Equipment.
Product and technical information for Grundfos
Submersible Mixers is attached. The project specifications currently list two manufacturers,
Landia and KSB, for their Submerged Gear Reduced Mixing units; however, only one of
these manufacturers (Landia) currently offers a gear reduced unit (KSB discontinued their
gear reduced mixer line some years ago), making this a single source situation. Grundfos
offers a very similar product to the Landia model which also implements a planetary type
gear reducer as required in the “Remarks” section of the Specification Data Sheet
Supplement-1 (please see attachments).
We urge EMWD to consider adding Grundfos as an accepted “Pre-Approved Equal” or
“Named Manufacturer” to allow for enhanced competition within the framework and
intentions of the current specification (The second “named manufacturer” currently
specified, KSB, will have to take exception to the required gear reducers – they will offer
higher speed direct-drive mixers with high pole-count motors which are very expensive to
rewind/rebuild). We have attached an installation list to demonstrate the wide acceptance
and success of this product in the environmental market; however, you will notice that most
almost all of these are outside of the USA. Grundfos has only recently begun offering these
products to the domestic market, but feel strongly that their experience and quality will be
greatly appreciated here in the USA.
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Page 22 of 43
Specification No. 1197S
Addendum No. 5
Q2. Section 44 42 25.03
Formed Aluminum Flat Panel Cover.
Please add RPS Manufacturing and as an alternate construction a Extruded non-skid cover
system. RPS can provide either style, but can provide the superior cover system at a lower
price than the formed covers.
We can supply formed flat covers as in the Ocean City attachment which RPS supplied but
we do not recommend the design.
This design is more expensive to produce since it requires multiple people to feed a 20’
sheet into a fold machine as well as stiffeners need to be welded to the underside of these
panels which tend to created buckling which in turn creates areas that will collect water.
Also this design does not allow for a non-skid surface which makes them dangerous to walk
on when wet. Although in the spec, Hallsten does not make a formed cover.
We suggest you offer them our extruded non-skid cover system (similar to Hallsten’s) which
uses a bidirectional non- skid surface as was used in Clovis, CA.
A2.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Coombs Hopkins
Q1. Specification Section 13238A
1.02B and 1.02C Design Criteria – Specification 13238A has two design loads and drawing
M01 only specifies 40psf live load– Please specify section where we are to use the specific
loading criteria as specified in the specification.
1.02. E. Specification indicates 90mph (Specification Section 44 42 25.03 referrers to
drawing 01G10 and specified 100mph) Please confirm wind load.
2.02 A – Remove 5052-H36
Add 5052-H32 – This is our standard material we use on our formed flat covers
·
2.02.C. – Closure panel seals: Add 3/8” thick neoprene
2.03 J – Fabrication – Remove in its entirety
Not required for aluminum cover system since the covers are held down by flashing that is
anchored into the concrete. The covers are capable of resisting seismic loads and
preventing covers from falling into the tank
A1.
See modifications to Section 13238A of Appendix J provided in this addendum.
Q2.
Specification Section 44 42 25.03
2.02. A.1 Design - Please confirm if we are applying the same design loads for new 23MGD
Expansion covers (Specification section 44 42 25.03) and the Plant 1 Primary Clarifiers
(specification 13238A)
2.02. A.3 – Wind load –Refers to structural drawing which indicates 100mph and spec
13238A specified 90mph. Please confirm the wind load
2.05. A.B – Anchors/Fasteners - Specification specified 300/304 Stainless Steel which
Page 23 of 43
Specification No. 1197S
Addendum No. 5
conflicts with specification 13238A specified 316. Please confirm material to be used.
2.05 Miscellaneous Materials C. E. – Remove in its entirety
Remove the information these sections are proprietary information to domes
2.05 D Gasket - Remove and Replace with: Closure flashing to panel seal – 3/8” neoprene
or hypalon gaskets
2.06 Fabrication – Please confirm if top panel surface is to be non-slip similar to
specification 13238A section 2.03.k
A2.
The structural drawing has the correct wind load design criteria. For the material of the
anchor/fasteners see revisions to Specification Section 44 42 25.03 included under
Technical Specifications in this addendum. The other items are to remain as specified. The
Specification Section 44 42 25 03 governs the new 23 MGD main project, Specification
Section 13238A governs project included in Appendix J. See SC-59.
Cortech Engineering
Cortech requests to be considered as a substitute or as an “or equal” of the following
sections for the TVRWRF 23MGD Expansion Project. Supporting information is attached in
the following pages. Thank you for your time and consideration.
Q1.
Section 44 42 56.03 – Tertiary Effluent Vertical Turbine Pumps regulators.
Equipment Tag Numbers: 71-P-003, 71-P-004
Pump Name: Tertiary Effluent Pumps
Named Manufacturers: Fairbanks Morse 22A.1 & Weir Floway 20MKX
Proposed Equal: Flowserve 23EKM, 5 stages (please note we are offering a slightly larger
diameter/model (castings), however fewer stages overall with this selection- 5 vs. 6)
.
Equipment Tag Numbers: 40-P-303, 40-P-304
Pump Name: Out of Compliance Bypass Pump No. 3 and No. 4
Named Manufacturer: Goulds 20GLC Or approved equal
Proposed Equal: Flowserve 25ENL, 1 stage
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q2. Section 44 42 56.05 – Submersible Chopper Scum Pumps
Equipment Tag Numbers: 13-P-172
Pump Name: Raw Domestic Sewage Pumps
Named Manufacturers: Vaughan Company, Inc., Or approved equal
Proposed Equal: BJM XP-SK110C
A2.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q3.
Section 44 42 56.09 – Non-Clog, Dry-Pit, Centrifugal Pumps
Equipment Tag Numbers: 30-P-400, 30-P-410
Pump Name: Membrane Tank Drain Pumps
Named Manufacturers: Weir H12K-SS, Paco Pumps, Fairbanks Morse
Proposed Equal: Flowserve 12MSX13A
A3.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Page 24 of 43
Specification No. 1197S
Addendum No. 5
Environmental Water Solutions
Q1.
Fairfield Service would like to bid Section 44 42 24.02 Rectangular Sedimentation Basin
Mechanism. Attached is our Engineering Submittal for this project. It includes the reference
letter from Hitachi along with additional information on our offering. Please share this with
EMWD and CH2M Hill. We have completed a couple of projects with CH2M Hill in the past.
The drawings included in the Engineering Submittal are for the North Hudson Sewage
Authority-Adams NY project which was designed and currently being operated by CH2M
Hill.
We anticipate this information will be evidence of our capabilities and acceptance as an
acceptable supplier of this equipment.
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q2.
Gummi-Jaegar would like to be approved to bid the diffused aeration system for the
TVRWRF project
SECTION 44 45 16.02-A FINE BUBBLE AIR DIFFUSER SYSTEM
I have attached our design information which is similar to the specified Aerostrip
Corporation diffusers. Our diffuser system meets or exceeds the specified system.
A2.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
JBI (numbering as shown in Addendum 2)
Q6.
Specification: 26 20 00 Sub Section: 2.05 B.
B. Voltage Rating: Unless otherwise indicated in motor-driven equipment specification:
Duperon Corporation Comment: ½ hp motor will be 480 vac, 3 phase for vfd control.
A6.
See the requirements in the Bid Documents, Specification Section 44 42 30 (Supplement)
Q7.
Specification: 26 29 23 Sub Section: 2.01 a.
Components and accessories specified in this section shall be produces of:
1. Rockwell, Model: Powerflex 700.
2. Or equal:
Duperon Corporation Comments: For consistency, a Toshiba G7 VFD will be provided, as
was provided on the other two FlexRakes.
A7.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
J.F. Shea
Q1.
Reference is made to Specification Section 02718 – Installation of Water Pipelines, as well
as Contracting Drawing Nos. 71P01, 71P02, and 71P03, which were added by Addendum
No. 2. Is it the intent that this Specification only applies to the installation of the new RW
pipeline detailed on 71P01, 02 & 03? Or would it apply to other types of waterlines within
treatment facility itself such as the RW, WW, and PW? Any others? Please clarify?
A1.
Section 02718 was added to the Contract Documents since it was listed in Special
Condition SC-23. Since SC-23 and Standard Drawing B-656 provide sufficient data for
installing locator wire; Section 02718 will be deleted from the Contract Documents.
Page 25 of 43
Specification No. 1197S
Addendum No. 5
Clarification to Question 6 from Addendum 2
Q6.
Reference is made to Drawing 22M01, on the upper left hand corner, the piping rack
including 8” CHA, 4”WW, 2”WW, and 10” FA, is on structural support system that we can
find no detail. Please provide a detail of this support system.
A6.
Specification Section 40 05 15, Piping Support Systems, paragraph 1.05 has the
requirements to design the pipe support systems. No details are provided in the Drawings.
Kiewit
Q1.
SC-43, please provide a revised date for the membrane acceptance. Based on the current
bid date, it will be unlikely that the apparent low bidder will be able to write a Purchase Order
to GE prior to December 15, 2015.
A1.
See Addendum 4.
Q2.
How thick is the silt layer (or deposits) on the existing liner that will need to be removed in
the existing equalization basin?
A2.
The District will clean the basin prior to turning it over to the Contractor.
Q3.
Please provide designed profile drawings for the new electrical and FO duct banks.
A3.
Designed profile drawings for the new fiber optic duct banks will not be provided. Utilities
shown on plan drawings are based on the best available data. Contractor is responsible for
field verifying all buried utilities, underground pipes and existing ductbanks prior to
construction. Contractor will be responsible for submitting underground profiles indicating
all underground Utilities in accordance with Section 16133.
Q4.
What areas of the plant can be used for stockpiling materials prior to off haul?
A4.
See Addendum 4.
Q5.
Shut downs 26, 27 and 28 from 01G08 will need to include valves due to construction
constraints but no valves are shown in the drawings. For example, when the TEPS pump
station is connected to the intake headers, the SOG, pumps, valves, and piping needs to be
in place and ready to accept water once the tie in is complete. However, excavation of the
discharge header will undermine the new slab. Can the designer add valves to the 72" and
36" headers?
A5.
The 36” discharge header has a new valve (71SM01) to connect the existing discharge
header to the new discharge header. See revisions to Drawing 71SM01 included under
Contract Drawings in this Addendum.
Q6.
The demo point of the existing 24" SE line to EQ Basin 1 may need a valve but no
valve is shown on drawing 01Y05. Unless the 24" SE line to the existing EQ Basin 1 can be
shut down and kept locked out until the new basin is reconfigured, a valve must be added.
Please advise if the line can be kept shut down during construction or add a valve to the
line.
A6.
See revised Drawing 01Y05 included in Attachment of this addendum.
Page 26 of 43
Specification No. 1197S
Addendum No. 5
Q7.
What's a reasonable number of days for Inspections of materials not locally produced
(located greater than 100 miles outside geographic limits of EMWD's main office) for the
project. Without guidance from the District, bidders may bid minimal or no inspection.
There may be a large number of materials produced outside the 100 mile radius for the
project and to provide the District with the best price for the project a list of materials to be
inspected is needed. Examples of items fabricated outside the 100 mile radius may include
roof membrane, louvers, insulation, red wood header, doors, electrical wire, conduits, pipe,
etc. Would items like this require inspection?
A7.
The technical specifications indicate whether or not each specific piece of equipment or
material requires District inspection prior to shipment. The technical specification will
indicate the inspection requirements. The Contractor along with his material or equipment
supplier can determine the effort needed for inspection from the information provided within
the technical specification sections.
Q8.
Please verify that all GE freight costs is included in the negotiated price?
A8.
See SC-09 and the MOU in Appendix K.
Q9.
The Pre-negotiated G.E. warranty terms do not comply with the bid docs terms and
conditions. Will added monies be necessary to have the pre-negotiated equipment to be
able to comply with project warranty requirements.
A9.
See SC-42 and item 2 under Bid Forms in the Modifications to Supplier’s Proposal in the
MOU in Appendix K.
Q10.
Sheet 11S02 sections A and B show exiting waterstop in headworks walls and slabs
that the expansion work and Bypass work ties into. However during site visit it was
observed that there is no water stop at the existing tie in points. Please provide detail for tie
into walls and slab when there is no existing waterstop.
A10. The waterstop is not visible; it is behind a thin layer of concrete to protect its integrity until it
is used during future construction. As-built drawing indicating existing water stop detail is
provided in Attachment C of this addendum.
Clarification to response to Q12 in Addendum 4.
Q12. The P&ID Drawing 33N01 indicates several lines being routed to a chemical resistant drain,
CRD. In reviewing 33M01, 30M02, 01Y05 no drain line is shown. Please clarify.
A12.
See revisions to 30M02 and 30M05 provided under Contract Drawings in Addendum 4.
Clarification to response to Q57 in Addendum 4.
Q57. Answer to Skanska’s question 13, Addenda 2, page 23, states that the inlet deflector plat
drawings are in attachment A The deflector plate drawing could not be found in attachment
A.
A57.
The deflector plate detail is shown in GE’s drawings (500559A-PG-01 REV E Sht 2 of 5 and
500559A-SA-01 REV A Sht 1 of 1)
Page 27 of 43
Specification No. 1197S
Addendum No. 5
OXBlue Corp
Q1.
I’m reaching out to see if the lapse cameras make sense for Temecula Valley Regional
Water Reclamation Facility 23 MGD Expansion. You can see live demos here –
http://oxblue.com/demos.
A1.
The District is not requesting lapse cameras.
Parsons Corp
Q1.
M35- In the revised Piping Schedule (Spec. Section 40 27 00) that was issued in
Addendum 2, there is a Note 12 which states the following: “ 12. Drain (D) piping in the
Chlorine Contact Basin and the”. This does not make sense. Please review and resolve.
A1.
See revisions to the Piping Schedule under Technical Specifications included in this
addendum.
Q2.
M36- In the revised Electric Motor Actuator Schedule (Spec. 40 27 02) that was issued in
Addendum 2, Valve 20-FCV-372 is listed as 12”. However, Drawing 20M07 shows it to be in
a 10” pipeline. Please review and resolve.
A2.
See Addendum 4.
Q3.
M37- In the revised Electric Motor Actuator Schedule (Spec. 40 27 02) that was issued in
Addendum 2, Valve 20-FCV-382 is listed as 12”. However, Drawing 20M07 shows it to be in
a 10” pipeline. Please review and resolve.
A3.
See Addendum 4.
Q4.
M38- In the revised Electric Motor Actuator Schedule (Spec. 40 27 02) that was issued in
Addendum 2, Valve 31-FCV-101 is not listed. Should Valve 31-FCV-101 be added to this
list? Please review and resolve.
A4.
There is no valve 31-FCV-101. If valve number is 31-FCV-001, then see Addendum 4.
Q5.
M39- On P & ID Drawing 13N02, just above Primary Scum Pump 13-P-172, there is a plug
valve shown upstream of the Mixing System in the Wetwell. This valve in not shown on the
M drawings. This drawing has not been updated to include the addition of FCV-173 (3 way
plug valve which was added in Addendum 2). We assume that this manual plug valve is not
needed as the new FCV-173 takes its place. Please review and concur.
A5.
See modifications to Drawing 13N02 included under Contract Drawings in this addendum.
Q6.
M40- On P & ID Drawing 13N02, in the middle of the left hand side, there is a callout which
says “2-POLY from existing portable system”. We can’t find any details about this on the
drawings. Does this pipeline exist? If so, please provide resolution and issue the necessary
construction details so that we can accurate estimate this.
A6.
See revisions to Drawing 13N02 included under Contract Drawings in this addendum.
Q7.
M41- On P & ID Drawing 13N04, just above the center of the left hand side, there is a callout
which says “from Plant Water Distribution System”. We can’t find any details about this
tie-in on the drawings. Please review, resolve, and issue the necessary construction details
so that we can accurate estimate this.
Page 28 of 43
Specification No. 1197S
Addendum No. 5
A7.
See Drawings 13M02, 13M01, 22M01 and 22M03 follow the 4”WW and then the 2” WW
branch that feeds the pump.
Q8.
M42- On P & ID Drawing 30N01, at the bottom of the page, there is a callout which says
“OOC” and shows it to originate at the Membrane Tank and go to the Out of Compliance
Ponds. We can’t find any details about this on the drawings. Does this pipeline exist? If so,
please provide resolution and issue the necessary construction details so that we can
accurate estimate this.
A8.
See Addendum 4.
Q9.
M43- On P & ID Drawing 30N01, at the right hand side of each of the Membrane Tanks,
there is a callout which says “PD” and shows it to originate at the Membrane Tank and go to
the Membrane Tank Drain Pumps. We believe that this pipeline is incorrectly labeled and
should be “MD” not “PD”. Please review and concur.
A9.
See revisions to 30N01 included under Contract Drawings in this addendum.
Q10. M44- On P & ID Drawing 33N01, there are 2 lines shown to discharge to drains which are
labeled as “CRD”. We can’t find any details about this on the drawings. Does this drain
system exist? If so, please provide resolution and issue the necessary construction details
so that we can accurate estimate this.
A10.
See Addendum 4.
Q11. M45- On Drawing 13M01 Detail G there is a callout which says “3”D Note 5”. We can’t figure
out where this pipeline goes to and how it is configured. Please review and provide
direction/details.
A11.
See the plan view to the left of Detail G and Drawing 01Y04 (the 3” drain pipe is from the
sump in the Membrane Equipment area.
Q12. M46- On Drawing 13M02, in about the middle on the right side, there is a 6” WW line which
goes underground and travels West. We need more details so that we can determine the
height of the vertical pipe in this area. Please review and resolve.
A12.
Drawing 13M02 is a partial plan, see Drawing 13M01, which shows the continuation for this
pipe.
Q13. M47- On Drawing 13M03, Section A, middle of the page, “CL El. 1024.43 is called out twice
and the vertical distance between these callouts is over 4 feet. One or both of these
elevations is not accurate. Please review and resolve.
A13.
See revisions to 13M03 included under Contract Drawings in this addendum.
Q14. M48- On Drawing 13M03, Detail 1, there is a callout for “2” PSL”. The Piping Schedule does
not show what materials to use for this size. Perhaps it is because Ductile Iron is only
available in 3” or larger. Is this pipeline to be constructed out of 2” Carbon Steel galvanized
piping with threaded fittings? Please review and resolve.
A14.
See Addendum 4.
Page 29 of 43
Specification No. 1197S
Addendum No. 5
Q15. M49- On Drawing 13M03, Detail 1, there is a callout for “4” x 2” RDCR. Typ.”. This needs to
be changed to 4” x 3” RDCR because Ductile Iron is only available in 3” or larger. The 3” to
2” reduction would be accomplished using galvanized carbon steel materials (see Question
M48 above). Please review and concur.
A15.
See Addendum 4.
Q16. M50- On Drawing 13M04, Plan at El. 1027, just below the 1-1/2” AHP line, there are 5
identical items which we can’t tell what they are nor is there any description of them given.
Please review and resolve.
A16.
These are the pipe supports bases for the 6” PSL.
Q17. M51- On Drawing 13M05, Section C, there are 2 callouts for pipelines which are labeled as
“6” FA”. However, these are shown to be 12” FA per Drawing 13M04. Which is the correct
size? Please review and resolve.
A17.
See Addendum 4.
Q18. M52- On Drawing 13M06, Section D, on the left hand side just below the 12” Damper, there
is a callout which says “2” V300”. Dwg. 13M03, Section A, shows this same valve to be a
“V205”. Which callout is correct? Please review and resolve.
A18.
See revisions to Drawings 13M03 and 13M06 included under Contract Drawings in this
addendum.
Q19. M53- On Drawing 13M06, Section D, on the left hand side just below the 6” D, there is a
callout which says “6” V405”. Dwg. 13M04, Plan at El. 1027, shows these same valves to be
a “FV171, FV172, etc.”. Which callout is correct? Please review and resolve.
A19.
See revision to 13M06 included under Contract Drawings in this addendum
Q20. M54- On Page 4 of Addendum 2, there was a Note 3 added to Drawing 13M07 which
describes the Washwater Booster Pump in detail. Per Drawing 13N04, this is to be supplied
by the Fine Screen manufacturer as part of the equipment package. We assume that
Drawing 13N04 is correct. Please review and resolve.
A20.
See revisions to Drawing 13N04 included under Contract Drawings in this addendum.
Q21. M55- On Drawing 13M07, near the top in the middle of the page, there is a 4” D which
originates at the sump and continues Southwest and then South to the end of the page. Is
there a wall penetration detail (pipe sleeve with link seal) that should be used with this?
Also, does this pipeline require concrete encasement for that portion which is under the
slab? Please review and resolve.
A21.
See revisions to Drawing 13M07 included under Contract Drawings in this addendum.
Q22. M56- On Drawing 20M01, on the right hand side, there are 2 pipelines which are called out
as “8” ALP”. Drawing 20M04 shows these as 10”. Which is the correct size? Please review
and resolve.
Page 30 of 43
Specification No. 1197S
Addendum No. 5
A22.
See Addendum 4.
Q23. M57- On Drawing 20M07, there are 5 places that appears to show a pipe manifold and a
pipe support which the ALP piping connects to. Are these manifolds and supports to be
supplied by the Fine Bubble System vendor? Please review and resolve.
A23.
See the note on Section D towards the middle of the section and just to the left of the callout
for FCV-372.
Q24. M58- On Drawing 21M03, Section B, there is a 16” ALP pipe spool shown between the
check valve and the isolation valve. These valves are being supplied by the Blower
manufacturer per the specification. Is the 16” ALP pipe spool also coming from the Blower
vendor or is it to be supplied by the Contractor? Please review and resolve.
A24.
The items to be provided by the Blower Manufacturer are identified on the drawings, if the
item is not identified as being supplied by the Blower Manufacturer then needs to be
supplied by the Contractor.
Q25. M59- On Drawing 22M02, near the top on the left hand side of the page, there is a 4” D
which enters the sump from the north. Is there a wall penetration detail (pipe sleeve with link
seal) that should be used with this? Also, does this pipeline require concrete encasement
for that portion which is under the slab? Please review and resolve.
A25.
See response to question 21. It is the same pipe.
Q26. M60- On Drawing 22M03, Section A, near the middle of the page, there is a callout for “6”
Vent” which comes off the 24” RAS line. Pipe System “VENT” is not listed in the Piping
Schedule of Spec. 40 27 00. What is the material to be used for pipe system “VENT”?
Please review and resolve.
A26.
See revisions to Drawing 22M03 included under Contract Drawings in this addendum.
Q27. M61- On Drawing 22M03, Section A, on the RAS Pump suction line, we can’t tell what you
are trying to show between the pump and the reducing spool. We assume that this is a 14”
flanged by flanged spool. Is this correct? Please review and resolve.
A27.
This component is the flange spacer, which is part of the pump suction assembly.
Q28. M62- On Drawing 22M05, Section D, on the 18” FSE line, there is a pipe support
configuration on the vertical portion of the line which is different than Drawing 20M05 which
only shows a 4005-505 pipe support assembly. We assume that what Drawing 20M05
shows is preferred. Please review and resolve.
A28.
See revisions to Drawings 20M01, 20M02 and 20M05 included under Contract Drawings in
this addendum.
Q29. M63- On Drawing 30M01, between Column Lines 13 and 14, there are 3 pipelines which
are called out as “16” MD”. This conflicts with Section B of Drawing 30M04 which shows
these as 18”. Which is correct? Please review and resolve.
A29.
See revisions to Drawings 30M01 included under Contract Drawings in this addendum.
Page 31 of 43
Specification No. 1197S
Addendum No. 5
Q30. M64- On Drawing 30M01, at about the middle of the page, there is a pipeline which is called
out as “24” MD”. This conflicts with Section C of Drawing 30M04 which shows this as 18”.
Which is correct? Please review and resolve
A30.
See revisions to Drawings 30M01 included under Contract Drawings in this addendum.
Q31. M65- On Drawing 30M02, between columns 17 -18 and B – C, there is a round circle with a
square to the north of it that is not described anywhere. There are not any plan, section, or
details views that we can use to determine what this is. Please provide resolution and issue
the necessary construction details so that we can accurate estimate this.
A31. See Addendum 4.
Q32. M66- On Drawing 30M02, between columns 17 -18 and B – C, there is a 1” D pipe shown in
plan view. There are not any additional plan, section, or details views that we can use to
determine how long this pipe is, how is it routed, and what it connects to. Please provide
resolution and issue the necessary construction details so that we can accurate estimate
this.
A32. See Addendum 4.
Q33. M67- On Drawing 30M02, between columns 17 -18 and D – E, there is a callout for a “1-1/2”
DR” pipe. We assume that this callout should actually be “1-1/2” D”. Please review and
concur.
A33.
See Addendum 4.
Q34. M68- On Drawing 30M04, Section B, on the 18” MF line just upstream of the 30-PIT-300,
there is a pipe in section which appears to branch off perpendicular to the 18” MF. There are
not any plan, section, or details views that we can use to determine what this is. Please
provide resolution and issue the necessary construction details so that we can accurate
estimate this.
A34.
See Addendum 4, Attachment A for revised drawing 30M04.
Q35. M69- On Drawing 30M04, Section D, at the bottom of the 30” AS line near the blind flange,
there is a callout for “1” D”. There are not any additional plan, section, or details views that
we can use to determine how long this pipe is, how is it routed, and what it connects to.
Please provide resolution and issue the necessary construction details so that we can
accurate estimate this.
A35.
Based on clarification received from Bidder, the reference drawings is 30M05 (not 30M04).
See Addendum 4.
Q36. M70- On Drawing 30M04, Section D, there is a callout for a “3” V300” on the 3” D pipeline
which comes from the CIP/BP Tank. We believe that V330 is the correct valve type. The
V330 has a PVC valve body and it would make sense to install this in System D which is
also made from PVC materials. Please review and concur.
A36.
See Addendum 4, Attachment A for revised drawing 30M04.
Page 32 of 43
Specification No. 1197S
Addendum No. 5
Q37. M71- On Drawing 30M06, Section E, there is a flared portion shown at the start of the 2” D
pipeline. We are not sure how to construct this by using Sch. 80 PVC materials. We suggest
that you take a 4” PVC coupling and glue a 4” x 2” into the bottom of it and then connect 2”
PVC piping to it. Would this be acceptable? Please review and concur.
A37.
See revisions to 30M06 included under Contract Drawings in this addendum.
Q38. M72- On Drawing 30M06, Section F, there is a callout for “1” IA”. The IA pipe system is not
listed in the Piping Schedule (Spec. 40 27 00). We suggest that the correct piping system
callout is “1” AHP”. Please review and concur.
A38.
See revisions to 30M06 included under Contract Drawings in this addendum.
Q39. M73- On Drawing 33M01, Plan View, there is a Citric Acid Tote shown. Is this to be
provided by the Owner? Please review and resolve.
A39.
See Addendum 4.
Q40. M74- The Automatic Composite Sampler Specification (44 42 48.04) mentions that the
Sampler is to be located at the new Chlorine Contact Tank. We do not find its location on
any of the drawings. Please provide resolution and issue the necessary construction details
so that we can accurate estimate this.
A40.
See Drawing 40E02 included in Addendum 2.
Q41. M75- Addendum 2 responded to inquiries from Victaulic, Lobe Pro Rotary Pumps,
Mechanical Associates, Robbins Lightning, Dudick Inc., Southwest Valve and Equipment,
GAF, JBI Water Wastewater Equipment, Custom Conveyor Corp., Leed Electric Inc., and
EATON. All of these companies requested that their product be approved and be allowed to
bid the project. Your response to each inquiry stated ““or equal” request submitted by a
contractor 10-days preceding bid opening will be reviewed by the District prior to bid
opening.”
We are confused by your response and some vendors have stated that they understood
that they were approved. Are you currently evaluating these products? Will you provide an
answer in a future Addendum regarding whether or not they are approved? Are you waiting
for a bidding General Contractor to request that you consider them as an “or equal”? We
suggest that these decisions should not wait until “within 10 days prior to the bid” as this
might not be enough time for a vendor to prepare a quote. This is particularly true if you
need additional supplemental information from the vendor. Please review.
A41.
The District has received numerous requests for “Or Equals”. These that have been
received and accepted as “Or Equal” will be listed in Addenda Nos. 4 and 5.
Q42. Addenda 2 revised specification section 01 31 13 and defines the following milestones:
Milestone 1 (Headworks Upgrades), Milestone 2 (Tertiary Effluent pipng), Milestone 3
(various items)> However, section SC-06 of the Special Conditions provides a different
definition of Milestone 1 and does not provide any completion schedule information for
Milestones 2 or 3. Please provide consistent information that clearly defines the milestones
as well as any completion requirements that are applicable.
A42.
See revisions to Section 01 31 13 included under Technical Specification in this addendum.
Page 33 of 43
Specification No. 1197S
Addendum No. 5
Q43. Please provide an updated index of drawings that indicates which drawings have been
impacted by addendum.
A43.
Each addendum identifies the drawings that have been modified and the requested
document will not be provided.
Q44. Regarding Archer Western question and answer 3 in Addendum 4, A3 states “Drawing
71P01 has been changed and the revision included in this addendum.” Drawing 71P01 is
not identified as a modified drawing in Addendum 4 and no revision has been provided with
Addendum 4, please rectify.
A44.
The revisions to 71P01 are included in Addendum 4, Page 12.
Q45. Addendum 4 page 7 of 62 states “MODIFY the following drawings as described
(modifications by comments):” on page 11 of 62 it states “Drawing 32M02 1. Add the
following note to the PLAN: “FOR HUB DRAIN AND CRD PIPE, SEE DWG 30M02”,
Drawing 33M02 has not been provided, please rectify.
A45.
Drawing 33M02 is not a part of the Bid Documents set or any addenda. It is a typo. The
correct drawing is 33M01. Revisions to Addendum No.4 and Drawing 33M01 are provided
in this addendum.
Q46. Regarding Kiewit Question and Answer 59, page 34 of 62, A59 states “Drawing 71P01 has
been changed and revisions included under Contract Drawings in this addendum.”
Drawing 71P01 is not identified as a modified drawing in Addendum 4 and no revision has
been provided with Addendum 4, please clarify.
A46.
The revisions to 71P01 are included in Addendum 4, Page 12.
Q47. Regarding Parsons Question and Answer 59, page 51 of 62, A59 states “A59. See revision
to 11M01 included under Contract Drawings in this addendum.” Drawing 11M01 has not
been provided in this addendum, please rectify.
A47.
The revisions to 11M01 are included in Addendum 4, Page 7.
Q48. Sheet 46, 01Y01 shows a reroute of the 10” TWW line around the CCB, the note on the
drawings directs the contractor to match existing piping. Please revise the piping schedule
to show what type of piping material exists in this location.
A48.
See revision to Drawing 01Y06 included under Contract Drawings in this addendum.
Q49. The yard piping drawings (01Y06, 01Y07, 01Y10, 01Y11) have been revised in Addendum
4 to change the routing of the 36” MF and the 2-3” CLS lines. Drawing 01Y05 has not been
updated to show the rerouting of these lines, please provide termination details for these
piping runs or provide a revision to drawing 01Y05.
A49.
The requested Drawing is included in this addendum.
Q50. Sheet 303 shows ladders at vaults 1 and 2. No details are given for the ladders. Please
provide.
A50.
See revisions to drawing 60SM02 included under Contract Drawings in this addendum.
Page 34 of 43
Specification No. 1197S
Addendum No. 5
Q51. Sheet 7 of 9 drawing 13D01 appendix J, note 1 states; “only the inlet channel section
associated with two primary clarifiers shall be taken offline at a time”. In the as-builts, the
splitter box for the 36” PI shown on sheet 47 drawing 13M03, is located between clarifiers 3
and 4. This means that the channel at clarifiers 1 and 2 will be taken off line with the
channel at clarifier 3. Similarly the channel at clarifier 5 and 6 will go off line with the
channel at clarifier 4. Will it therefore be permissible to take three clarifiers off line at a time
in lieu of two? We assume the walls of the splitter box are to remain as is and will not
receive the repair treatment outlined in sketch PLD-AL-420 for the channel, since it will not
be possible to drain the box and at the same time maintain flow to the clarifiers. Please
confirm.
A51.
See Work Restriction for Plant 1 Clarifiers Covers and Plant 2 Inlet Channel Repair
provided under EMWD Detailed Provisions in this addendum.
Q52. It is not clear if downspouts are required for the air scour facility on sheet 148 where splash
blocks are shown. No downspouts are shown in the section on sheet 149. Please clarify.
A52.
See revisions to Drawing 31S02 included under Contract Drawings in this addendum.
Q53. Regarding Hazardous Material Signs: The Sign Schedule on page 10-14-00
SUPPLEMENT-2 lists 3 each type H signs, but the Signage Spec on page 10-14-00-6 lists
5 ea type H signs (3 for Chlorine plus 2 for Diesel Fuel). Please clarify.
A53.
See revision to the Supplement in Specification Section 10 14 00 included in this
addendum.
Q54. Q50 on page 50 in addendum #4 has no clear answer. Sheet 170 has notes about walls
and sides. Are walls/sides required, none are shown in section C on 171. If there are any
walls/sides, how many doors and louvers are there and wht sizes are they?
A54.
The wall refers to the fascia that is required around the canopy.
Q55. Q66 on page 52/Q21 on page 29 in addendum #4 follow up question: The GE drawing
500559A-PG-01 REV E Sht 2 of 5 shows a simplistic sketch. If the contractor is to supply
the deflector/baffle plates, what size are they and their support members?
A55.
The deflector plate detail is shown in GE’s drawings (500559A-PG-01 REV E Sht 2 of 5 and
500559A-SA-01 REV A Sht 1 of 1).
Q56. Q5 on page 55 in addendum #4 follow up question: The answer states that questions and
answers not followed up by changes in contract documents are not binding. Will these
questions and answers be addressed by changes in the contract documents before the bid
date?
A56.
Communication by addenda has the highest order of precedence. Therefore modifications
made by reissuing of drawings and specifications, or modifications to drawings or
specifications made by comment will be considered binding. The District will issue a
conformed set of contract documents after bid opening which will include both revisions
made by reissued drawings and specification as well as drawings and specifications
changed by comment.
Responses to questions that do not meet the preceding paragraph requirements are not
considered binding but may be used for clarifying and/or understanding the contract
documents at the time of bidding.
Page 35 of 43
Specification No. 1197S
Addendum No. 5
Q57. Additionally named or equal manufacturers. Will RPS Engineering listed on page 2 of
Addendum #4 under spec section 44 42 25.03 formed Aluminum Panel Flat Cover, also be
an allowed product under spec section 13238A Aluminum Clarifier Covers?
A57.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q58. Appendix J page 17 Addendum #4 states: “Install two (2) new tie-off points…… locations
are shown on the drawings.” What are these tie-off points? We do not find the locations on
the drawings as stated.
A58.
New tie off points are not needed for Plant 1 Primary Clarifiers. See revision to Appendix J,
Section 01 01 0 in this addendum.
Q59. M76-Ref. Addendum 4, Page 18, A1 to Archer Western question: Yes, it is true that
Drawing 30M02 was modified and included in Addendum 4 but we do not find Valve
31-FCV-001 on that drawing. Is this equipment to be provided by GE? Please resolve.
A59.
Drawing 30M02 in Addendum 4 matches the P&IDs provide by GE.
Q60. M77- Ref. Addendum 4, Page 28, A10 to Kiewit question: We did not receive a revised
Drawing 13M08 in Addendum 4. Please provide the missing drawing.
A60.
The standard detail has been revised and included in this addendum.
Q61. M78- Ref. Addendum 4, Page 28, A11 to Kiewit question: Yes, it is true that a revised
Specification 44 45 16.03 was provided in Addendum 4. However, the original question still
remains because the wording in the new version of that specification is exactly the same for
paragraph 2.07. Please provide resolution.
A61.
If the specification has not been modified, no changes are needed.
Q62. M79-Ref Addendum 4, Page 29, A22 to Kiewit question: In Addendum 4, we did not receive
a revised Specification 26 32 13, 2.04C or any new wording which answers the original
question. The original question remains and needs a response.
A62.
See Addendum 4, Page 14.
Q63. M80- Ref. Addendum 4, page 31, A33 to Kiewit question: In Addendum 4, we did not
receive a revised pipe support design which was part of the original question. The original
question about needing a pipe support design remains and needs a response.
A63.
See Specification Section 40 05 15, Piping Support Systems for the pipe support
requirements not shown on the Drawings.
Q64. M81- Standard Detail Dwg 4442- we do not have a specification for the V710 pressure
regulator which is shown in this detail. Please provide the missing specification.
A64.
See revisions to Specification Section 40 27 02 included under Technical Specifications in
this addendum.
Q65. M82- Drawing 40N02 shows 40-ARV-303 on the OOC line at the Plant 3 Out of Compliance
Pump Station. This valve is not listed on the Self-Regulated Valve Schedule in Spec 40 27
02 Supplement 1. Please provide all the missing parameters so we can properly estimate
this valve.
Page 36 of 43
Specification No. 1197S
Addendum No. 5
A65.
See revision to Specification Section 40 27 02, Self-Regulated Valve Schedule Supplement
included under Technical Specifications in this addendum.
Q66. M83- Drawing 40N02 shows 40-ARV-304 on the OOC line at the Plant 3 Out of Compliance
Pump Station. This valve is not listed on the Self-Regulated Valve Schedule in Spec 40 27
02 Supplement 1. Please provide all the missing parameters so we can properly estimate
this valve.
A66.
See revision to Specification Section 40 27 02, Self-Regulated Valve Schedule Supplement
included under Technical Specifications in this addendum.
Q67. M84- Drawing 13N02 has not been revised for the addition of FCV-173 on the discharge
line of the Primary Scum Pump (13-P-172). This drawing currently shows a plug valve just
underneath the 13-AVRV-172 callout. I believe that this plug valve is no longer needed as
FCV-173 performs this function. Please concur
A67.
See revisions to Drawing 13N02 included under Contract Drawings in this addendum.
Q68. M85- Drawing 13N04 on the WW line to the left of the Washwater Booster Pump (13-P-250)
shows a tie-in to the Plant Water Distribution System. We cannot locate this on the Yard
piping drawings or anywhere else. Please advise.
A68.
See Drawings 13M01, 22M01 and associated Drawings with the sections.
Q69. M86- Drawing 50N01 shows PIT311 on the discharge of Washwater Pump 50-P-311,
Drawing 50M03 shows this as PI311. Which is the correct callout for this instrument?
Please resolve.
A69.
See revision to 50M03 included under Contract Drawing in this addendum.
Q70. M87- Drawing 71N01 shows drain lines coming off the Air Compressor and Air Receiver
(71-AC-300A/B and 71-T300). These are not shown on any plan and section drawings and
do not show what pipe system or pipe size they are. We assume that they are built from
Sch. 80 PVC material and are ½” diameter in size. Please concur.
A70.
See revision to Drawing 71M02 included under Contract Drawing in this addendum.
Q71. M88- Drawing 22M02 shows a 3”D pump discharge line which stops abruptly. We can’t find
any other drawings which show us the routing of this piping or the continuation of this
piping. We have assumed that 20 feet of this piping is all that is needed. Please review and
resolve.
A71.
See Drawing 13M01.
Q72. M89- Drawing 40M01 shows the 16” OOC piping near the NE corner of the CCB. We
cannot find any elevation value or plan and section views that would allow us to determine
how long the vertical pipe riser is to connect this piece of pipe with the continuation of this
piping on Drawing 40M02. Please review and resolve.
A72.
See Drawings 01Y06 and 40M03.
Q73. M90- Drawing 40M05 shows a 2” V pipeline which originates at the new Chlorinators and
connects to an existing vent pipe. System V ins not defined by the Piping Schedule in Spec.
40 27 00. We have assumed that the 2” V pipeline should be constructed from Sch. 80 PVC
materials. Please concur.
Page 37 of 43
Specification No. 1197S
Addendum No. 5
A73.
See revised Drawing 40M05 in Attachment A of this addendum.
Q74. We don’t understand what you mean by Note 3 of Drawing 40M07 (Flexible Grout) which is
pointing to a 6” PVC SCh. 80 standpipe. We also have not found a specification for this
flexible grout. Please review and resolve.
A74.
See revision to Drawing 40M07 included under Contract Drawings in this addendum.
Q75. M92- Drawing 50M02, upper left corner of Partial Plan 1, calls out Detail 4091-304C for
PE150, PSH150, and PI150B. This detail is incorrect as it is for an annular pressure sensor
which we don’t have in this case. Please correct this and provide the proper detail.
A75.
The call out is correct. Contractor to provide required sensors and accessories.
Q76. M93- Drawing 50M02, Partial Plan 1 just right of FIT150, calls out “6”V405 in vertical”. This
conflict with Drawing 50M03 Section B which shows V634 in the vertical riser. We believe
V634 is the proper callout for this valve.
A76.
See revision to Drawing 50M02 included under Contract Drawings in this addendum.
Q77. M94- Drawing 50M02, Partial Plan 2 shows a 2” POLY line. System POLY is not defined by
the Piping Schedule in Sepc. 40 27 00. We have assumed that the 2” POLY pipeline should
be constructed from Sch. 80 PVC materials. Please concur.
A77.
See revision to Drawing 50M02 included under Contract Drawings in this addendum.
Q78. M95- Drawing 50M02, Partial Plan 2 shows a valve 50-MV-140 which has a plug valve
symbol. This valve is not listed in the Actuated Valve Schedules (Electric or Pneumatic) of
Spec. 40 27 02. Please provide all the missing parameters so we can properly estimate this
valve.
A78.
See revision to Drawing 50M02 included under Contract Drawings in this addendum.
Q79. M96- Drawing 50M03, Section A shows something which connects the Rotary Thickener to
the Flocculation Tank. Is this item to be provided by the Rotary Thickener equipment
supplier? If not, provide sufficient details regarding what materials this item is to be
constructed from, etc. so we can properly account for this in our bid.
A79.
The items represent two 10” diameter long radius elbows with a 10” diameter short spool
between them.
Q80. M97-Drawing 50M05 shows a 1” POLY pipe which ties into the existing system and
continues over to the new 6” WAS. However, Drawing 50M02 shows this as a 2” POLY
pipe. Which is the correct size? Please resolve.
A80.
See revision to Drawing 50M05 included under Contract Drawings in this addendum
Q81. M98- Drawing 60M04 in several places has a 12” Flow Conditioner” callout which points to
a plain section of the 12” DGLP. We can’t find any specification or installation details which
we will need In order to properly estimate this item. Also, is it to be installed between a set
of flanges? Please review and resolve.
A81.
See paragraph 2.04.J in Specification Section 40 91 00.
Page 38 of 43
Specification No. 1197S
Addendum No. 5
Q82. M99- Drawing 60SM02 at Valve Vaults 1 and 2 shows a 1” V307 w/ ½” hose connector for
purge, typ in several places. This 1” pipe is connecting to a 14” DGLP pipeline. Since the
14” DGLP is HDPE, we assume that this branch connection can be made by welding a 1”
FNPT outlet to the 14” DGLP pipe. Please concur.
A82.
See revision to Drawing 60SM02 included under Contract Drawings in this addendum.
Clarification to response to Q66 in Addendum 4.
Q57. Addendum #2, A13 on page 23 refers to inlet deflector plate drawings provided in
attachment A. We found no such drawings.
A57.
The deflector plate detail is shown in GE’s drawings (500559A-PG-01 REV E Sht 2 of 5 and
500559A-SA-01 REV A Sht 1 of 1)
Rotork
Q1.
Will EMWD accept Rotork as an Or Equal valve actuator manufacturer as long as we meet
the specifications for this project? Rotork actuators are installed at EMWD’s Perris Facility
in the Aeration Blowers and we currently have one on test at your Moreno Valley Plant.
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Schneider Electric
Q1.
Referring to Specification Section 26 13 15 2.01, please advise if the owner will accept
Schneider Electric/Square D MV Capacitor Banks.
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q2.
Referring to Specification Section 26 19 23 Part 2.01, please advise if the owner will accept
Schneider Electric/Square D Medium Voltage Adjustable Frequency Drive Systems.
A2.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Shimmick
Q1.
Tertiary Effluent lines are called out on the piping schedule to be WSP. Detail 5 on 01Y09
calls the 36” TE to be DIP. Please clarify.
A1.
See revisions to Drawing 01Y09 included under Contract Drawings in this addendum.
Q2.
Please provide coordinates and elevation for point 115 on Drawing 01Y06.
A2.
See revisions to Drawing 01Y06 included under Contract Drawings in this addendum.
Q3.
Drawing 01Y10 calls out for a 2” air valve to be installed at all high points in piping. 2” air
valve installation can be found on standard detail B-367 in Volume 5. Drawing 71P02 and
71P03 issued under Addendum #2 call for 4” Type V470 air valves to be installed at all high
points in piping. Please provide 4” air valves detail, or confirm 2” air valves per B-367 are to
be installed everywhere an air valve is required.
A3.
Please note that Drawings 71P02 and 71P03 have the correct callout, 4” V740. The
standard detail 3312-655 for the 4” AVRV is included in Attachment A of this addendum.
Page 39 of 43
Specification No. 1197S
Addendum No. 5
Q4.
Please provide detail for 4” Standpipe to be installed on 30” OF/PE line (Drawing 01Y04).
A4.
See revisions to Drawings 01Y04 and 01Y10 included under Contract Drawings in this
addendum.
Q5.
Drawing 01Y03 shows a 30”/18” TE line. Drawing 71M01 refers to the same line as
RW. Please indicate which one is correct.
A5.
See revisions to Drawing 01Y03 included under Contract Drawings in this addendum.
Q6.
Drawing 01Y03 and 71M02 show the CL of 24” RW line at 1009.96, but drawing 71M03
show it at 1005.75. Please indicate which one is correct.
A6.
See revisions to drawings included under Contract Drawings in this addendum.
Siemens
Q1.
We are requesting the following changes:
Siemens to be added as a Substitutions for the following specification sections:
1.
2.
3.
4.
5.
26 13 13.01 MV 15kV Circuit Breaker Switchgear
26 13 13.02 MV 5kV Circuit Breaker Switchgear
26 22 00 Low Voltage Transformers
26 24 16 Panelboards
26 24 19 Low Voltage Motor Control
A1.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Q2.
Siemens to be added as a Equal to for the following specification sections:
1.
2.
26 09 13 Power Measurement and Control
26 23 00 Low Voltage Switchgear
Siemens will meet or exceed NFPA, NEC, UL, ANSI and IEEE requirement for all
specification section required by the specifying engineering company.
A2.
See Addenda Nos. 4 and 5 for additionally Named “Or Equals”.
Skanska
Q1.
Demolition of existing iron sponges. Please provide test data of the iron sponge media so
that the contractor can determine the disposal costs of this equipment.
A1.
Attachment C in this addendum has the form that is typically used at the TVRWRF to
dispose of the spent iron sponge media. It is not classified as a “hazardous” material, but it
needs to be kept moist to prevent a fire event (media from igniting).
Q2.
Please refer to Addendum Skanska Question # Q3. “Are there as-built drawings available
for the existing concrete box structure that is to be demolished – as shown on 01D02?” The
As-Built drawings that were provided as a part of Addendum 2 are for the Denitrification
Facility and not the structure photographed (P1 and P2) as shown on 01D02. Please
provide the As-Built drawings for the structure that is to be demolished.
A2.
As-built drawing of the concrete box structure is provided in this addendum.
Page 40 of 43
Specification No. 1197S
Addendum No. 5
Q3.
Please refer to Addendum Skanska Question # Q13. “The GE drawings show the
installation of “Inlet Deflector Plates” at the west end of the Membrane tanks. Are these
required?” The answer was that new drawings will be included in Attachment A of the
Addendum. They were not included. Please provide construction drawings of these
deflector plates.
A3.
GE’s drawing 500559A-SA-01, Rev A, Sheet 1 of 1 (in Appendix C of the Bid Documents)
has the detail for the Deflector Plate (Baffle Plate Detail). The design is provided by GE for
the Contractor to supply and install.
Q4.
Sheet 30M01 shows 16” MD pipes with 30-FV valves (between vertical lines 13 and 14)
connecting to a 24” MD header. These same pipes are called out in Section B on sheet
30M04 as 18” MD pipes with 31-FV valves connecting to a 18” MD header. Please clarify.
A4.
See Addendum 4.
Q5.
Please extend the question due date for at least one week to allow for more adequate time
to develop questions from the addendum.
A5.
The question period will not be extended.
Q6.
Do the pumps, pipes, pipe supports, and control panel supports currently on the structure
shown in 71S02 need to be removed before pouring the concrete topping slab? If so,
please provide the mechanical as-builts of this structure.
A6.
No. Please note there is no concrete being poured where the pumps are located. This
activity needs to be done carefully to protect the existing components.
Q7.
Addendum No. 4 includes new yard piping plans for Area 6, Area 8 and a previously
unreleased Area 11. The piping on the new Area 11 plan appears to continue into Area 5
but a new plan (Sheet 01Y05) was not issued. Please address.
A7.
See revisions to Drawing 01Y05 included under Contract Drawings in this addendum.
Q8.
Will the District be releasing a Plant #2 primary influent bypass/diversion plan similar to
Appendix R Headworks By-Pass Pumping?
A8.
The District will not provide a bypass/diversion plan for Plant 2 primary influent. However,
information regarding options the Contractor may consider is provided in this addendum.
Q9.
Please clarify if it is desired for the sunshade canopy on Drawing 30S07 to continue partially
down the sides of the structure to offer better shade protection for the membranes.
A9.
No, this is not necessary.
Clarification to response to Q12 in Addendum 2.
Q12. The following Pumps are identified on the drawings, but not referenced in the
Specifications: 13-P-250, 22-P-172, 13-P-154, 13-P-155, 13-P-156, 30-P-400, 30-P-410.
Please provide Specifications for these pumps.
A12.
There is a typo in sentence 3 of the response instead of “13-P-154” it should read
“13-P-172”
Page 41 of 43
Specification No. 1197S
Addendum No. 5
W.M. Lyles
Q1.
Section 03300, Paragraph 3.09.A states no other concrete finishing operations are required
for permanently concealed concrete (i.e., concrete below permanent ground surface or
operating water lever). Paragraph 3.09.C states all formed concrete within water bearing
structures and not subject to Item 3.09.B shall be brush-off cleaned (SSPC-SP7) and all
defects greater than ¼ inch in depth are to be filled. The amount of wall surface area under
the max water level is extensive and the price difference between 3.09.A and 3.09.C is
significant. Please clarify the finish requirements for all water bearing structures not subject
to Item 3.09.B.
A1.
See modifications to Section 03300 in this addendum.
Q2.
On Page 24 of Addenda 2, a question (Q4) was asked about SC-23 Locator Wire. The
owner response included the addition of Section 02718 to the contract documents. The
specification clarified the requirement for locate wire. However, Section 02718 discusses
several other items, such as cathodic protection (2.08), CCTV inspection (3.06) and
sandslurry encasement for all fittings and valves (3.08). Please clarify if Locator Wire (2.05)
is the only portion of Section 02718 applicable to this project.
A2.
Section 02718 will be deleted from the contract documents since Special Condition SC-23
and Standard Drawing B-656 address locator wire installation.
Q3.
Drawing 40M05 has a note that states, ‘CONNECT THIS EXISTING DUCT TO THE
EXISTING DUCT FEEDING THE SCREUBBER. COORDIATE THIS WORK CLOSELY
WITH PLANT OPERATIONS AND SAFETY PERSONNEL.’ Drawing 01G08, item 22
mentions ductwork in the Chlorine Building but no details are provided. Without a drawing
specifically showing the work that is to be performed, the bidding contractors are at a
disadvantage. Please provide a drawing detailing the work that is to be performed with
specifics such as duct type, size, point of connection, etc.
A3.
See revised Drawing 40M05 in Attachment A of this addendum.
Q4.
Please clarify the type of existing pipe material at the 12” tie-in as shown on drawing
50M07.
See revisions to Drawing 50M07 included under Contract Drawings in this addendum.
A4.
Q5.
The overall distance between gridline 5 and 11 is listed at 249’-6” on Drawing 20S01 and
20S02. However, the individual dimensions between each gridline equal 245’-0”. Please
clarify.
A5.
See revisions to Drawing 20S01 included under Contract Drawings in this addendum.
Q6.
An existing basin is shown on Drawings 01C02 & 01C03 and is to be reconfigured. Who is
responsible for cleaning the sludge from the existing basin? Assuming the contractor, how
much sludge should we assume and can we dispose of on-site?
A6.
The District will clean the basin prior to turning it over to the Contractor.
Page 42 of 43
Specification No. 1197S
Addendum No. 5