W912DR-11-R-0033-0005 North Campus Substation Amendment 5.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15A. NAME AND TITLE OF SIGNER (Type or print)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

THE ABOVE REFERENCED SOLICITATION IS HEREBY AMENDED TO PROVIDE THE FOLLOWING:

1) ANSWERS ADDITIONAL REQUEST FOR INFORMATION (RFI)

ALL OTHER TERMS AND CONDITIONS REMAIN UNCHANGED

1. CONTRACT ID CODE PAGE OF PAGES

J 1 21

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

16C. DATE SIGNED

BY 07-Jul-2011

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X W912DR-11-R-0033

X 9B. DATED (SEE ITEM 11)

10-Jun-2011

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

X The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offer is extended, X is not extended.

Offer must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended by one of the following methods:

(a) By completing Items 8 and 15, and returning 1 copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN

REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by telegram or letter, provided each telegram or letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(B).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

E. IMPORTANT: Contractor is not, is required to sign this document and return copies to the issuing office.

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

07-Jul-2011

CODE

USACE, BALTIMORE

10 S. HOWARD STREET

BALTIMORE MD 21201

W912DR 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912DR-11-R-0033

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 - BLOCK 14 CONTINUATION PAGE

The following have been added by full text:

RESPONSE TO RFIS #5

North Campus Substation, Fort George G. Meade, MD

Solicitation Number W912DR-11-R-0033

Amendment 5: Responses to Request for Information

Responses to Request for Information

4 Question) Because this is a one-step procurement, it may be difficult for us to achieve best-value solutions by the July 12 due date. Please consider a two-week time extension, which would provide maximum opportunity to raise the small business participation required and would allow vendors enough time to respond competitively.

Answer) Time extension was granted for one week

9 Question) Section 00100 Proposal Submission Requirements paragraph 3.5 Number of Copies states that the following numbers of proposal copies are to be provided: Volume I – Technical Proposal, (original and five copies); Volume II – Small Business Participation Plan (original and two copies);

Volume III – Price Proposal (original and two copies); Volume IV – Ownership Disclosure (original and two copies). The Standard Form 1442 Box 13 requires an original and 8 copies. Please advise which is correct.

Answer) The Section 100 Proposal submission requirements should be followed, ignore the Standard Form 1442 Box 13 directions for submission requirements.

11 Question) The SF328 form provided as Attachment A in the solicitation appears to be missing the back page – please provide.

Answer) SF 328 will be provide with Amendment 5

12 Question) Paragraph 6.2.1 states, “The Government desires to achieve a minimum of 40% total Small Business Participation.” Does this 40% include the prime contractor level, and therefore stands independent of the 70% subcontracting goal?

Answer) Yes

16Question) In Paragraph D of Amendment 0001 of the RFP, the Government designated specific sole source items and the specific companies that Offerors must use in support of this RFP. Can the Government please provide the Points of Contact, email addresses and phone numbers for each of these companies?

Answer) No, the sources are commercial readily available from numerous vendors.

32 Question) Subcontracting Plan. Amendment 0001 directed Bidders to follow requirements on page 21 (Sect. 6.2). However, this section remains unclear if the desired goal of Small Business participation is 40% of total contract value or 40% of subcontracted dollars. Please clarify and confirm that Bidder's submittal is to include proposed goals that will be negotiated.

Answer) Total Contract Dollars

33Question) Please clarify whether the project schedule pages that are to be submitted in Factor 4 are to be counted in the 100 page maximum.

Answer) Yes

34 Question) In Factor 3, “Subcontractor Experience”, sections 5.1.3.1, 5.1.3.2, and 5.1.3.3 state to “Describe the Offeror’s approach to all major [mechanical, electrical, commissioning] aspects of this project and how the subcontractor will interface with the Offeror’s quality control system, subcontractors, and the government team.” Section 6.1.3 which defines the evaluation criteria for Factor 3, states that the basis of evaluation for this section is in regard to the relevant project experience of the three subcontractor candidates submitted for the mechanical, electrical, and commissioning trades. The offeror’s approach to these systems appears to be more relevant to the criteria sought in Factor 4, Project Management Plan.

Please clarify what information is intended for Factor 3, beyond a description of the three to five relevant projects on Attachment D, that are to be submitted for the three candidates in each trade.

Answer) Please read Factor 3- Subcontractor Experience: The requirements for section 5.1.3.1, 5.1.3.2,

5.1.3.3 are described in detail.

35 Question) Please clarify the intent of the following sentence in 5.1.4 Factor 4, “The narrative must be a comprehensive, start-to-finish discussion on the significant features of this work to include demonstrating similar projects should include experience in construction….”. It appears that a few words were left out from this sentence.

Answer) The narrative must be a comprehensive, start-to-finish discussion on the significant features of this work to include demonstrating similar projects should include experience in construction of the following electrical substations….

40 Question) To provide the most comprehensive proposal response, we request a two (2) week postponement for the project (Revised proposal date of July 26, 2011).

Answer) Time extension was granted for one week

41 Question) We are unable to locate within Specification Section 01 05 00 Job Conditions the standard USACE paragraph titled “TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER” or any of the subparagraphs titled “Procedure for determinations”, “Anticipated Adverse Weather Delays” or “Impact”. Please confirm that the above referenced specification paragraphs apply to this project and provide accordingly.

Answer) Please find below the response to the question:

1.18 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

1.18.1 Procedure for Determination

This provision specifies the procedure for determination of time extensions for unusually severe weather in accordance the contract clause entitled "Default: (Fixed Price Construction)". In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

a. The weather experienced at the project site during the contract period must be found to be unusually severe, that is, more severe than the adverse weather anticipated for the project location during any given month.

b. The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the Contractor.

1.18.2 Anticipated Adverse Weather Delays

The following schedule of monthly anticipated adverse weather delays is based on National Oceanic and Atmospheric Administration (NOAA) or similar data for the project location and will constitute the base line for monthly weather time evaluations. The Contractor's progress schedule must reflect these anticipated adverse weather delays in all weather dependent activities. {See Section 01 32 01.00 10, Requests for Time Extensions}

MONTHLY ANTICIPATED ADVERSE WEATHER DELAY

WORK DAYS BASED ON (5) DAY WORK WEEK

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

7 6 6 7 7 6 4 5 3 5 4 4

1.18.3 Impact

Upon acknowledgment of the Notice to Proceed (NTP) and continuing throughout the contract, the Contractor will record on the daily CQC report, the occurrence of adverse weather and resultant impact to normally scheduled work. Actual adverse weather delay days must prevent work on critical activities for 50 percent or more of the Contractor's scheduled work day. The number of actual adverse weather delay days shall include days impacted by actual adverse weather (even if adverse weather occurred in previous month), be calculated chronologically from the first to the last day of each month, and be recorded as full days. If the number of actual adverse weather delay days exceeds the number of days anticipated in paragraph "Anticipated Adverse Weather Delays", above, the Contracting Officer will convert any qualifying delays to calendar days, giving full consideration for equivalent fair weather work days, and issue a contract modification.

44 Question) Section 00100 Proposal Submission Requirements paragraph 5.1 states, “As a part of their proposal, the Offeror must provide a contractor team agreement signed by all parties….This documentation shall be provided at the beginning of the Offeror’s technical proposal and will not be included in the overall page count.” Paragraph 5.3 requires Company Agreements to be submitted only in Volume III Tab B. Please confirm in which location(s) the team agreements are to be submitted.

Answer) b. Yes

65 Question) Paragraph 1.3 of the same section states that, “The subsurface investigation report may be examined at the USACE office.“ We are requesting a copy of the report either in hard copy or electronic format via Amendment. We believe this is a reasonable request due to the unclassified excavation requirement.

Answer) Subsurface soil information required for bidding is contained within the construction documents.

Soil boring locations, logs and soil properties are located within drawings C-007 through C-014. The construction document’s specifications and structural design and notes are detailed based on this subsurface soil information.

74 Question) We respectfully request an extension to the bid due date. The geotechnical and the hazardous materials reports previously requested are critical to our understanding of the known conditions at the site. Once received, we need time to review the data and incorporate the impacts into our estimate and technical approach. Given the complexity and magnitude of this project and the constraints on document distribution, a 60-day bid cycle would be more appropriate. This would allow necessary time to obtain best pricing from our subs and offering more opportunity for small business participation (many are electing to No Bid due to time). Will the Government allow an additional 4 weeks for proposal submittal?

Answer)Time extension was granted for one week

94 Question) Paragraph 2.18; paragraph required Surge Capacitors be located in this free standing fuse load interrupter switch; please advise class/rating of these capacitors. Typically distribution class would be supplied, but felt it should be defined based on the surge capability of the system design.

Answer) Please use distribution class.

95 Question) Paragraph 2.24.2 (e); This paragraph requires Sync. Check (Dev. 25) permissive controls;

can this permissive be software derived, or must it be an external hard wired contact in the close logic of the particular breaker affected?

Answer) Please provide hardwired connection.

96 Question) Paragraph 2.24.2 (h); Paragraph requires 3 phase reverse power (Dev. 32) protection to prevent generator motoring; can this protection be derived from internal programming as a trip logic, or must it be a hardwired SEL protective function separate from trip logic from PLC?

Answer) Please provide hardwired connection.

97 Question) Paragraph 2.13.1 (a); specifies Dual Controls with previous reference to no single point of failure; can more detail be provided to advise the performance criteria for these Dual Controls. By definition, a single generator is a single point of failure and thus the design component for N+2; Dual Controls may add additional failure points by the vary logic and interface needed to accomplish some kind of redundancy of the on-board controllers. Is it sufficient to interpret that the generator NFPA 110 onboard controls and the Switchgear Controller with Local/Remote control, would suffice as the dual control requirement?

Answer) Please provide dual controls to avoid single point of failure. Manufacturers can recommend means and method to achieve the design intention.

98 Question) Paragraph 2.13.3.3; mentions an “Advanced Battery Monitoring System” without reference or performance details Would a UPS battery monitoring system similar to CellWatch be the intended performance equivalent? The CellWatch would be a single system to monitor all 48 battery strings (6 batteries per string) and communicate over a fiber or similar link from their monitors which would be in each 3 gen section for a total of 8 monitors to a single cell watch in a convenient location near the switchgear.

Answer) Cell watch or Alber or equivalent. Please note that owner requires an advanced battery monitoring system for continuously monitoring the battery functions and individual cells, not string.

99 Question) Paragraph 1.3.1; Section mentions max cooling and combustion air flow of 90,000 sCFM;

This is inadequate for the size generator specified at the operating conditions and engine mounted cooling package. Air allowances must be made for combustion, alternator cooling and engine temp rise. We must cool not only jacket water but separate circuit charge air cooling as well, which is a component of current EPA Tier rated engines. Can allowances be made to accommodate 140,000 sCFM as required by our offering?

Answer) Paragraph 1.3.1 states a radiator flow of 90,000 CFM and an additional 8,725 CFM for combustion air flow. 140,000 CFM cannot be accommodated. Manufacturer can provide a “remote” radiator directly in front of the engine and fan driven from the engine or a separate motor.

100 Question) Paragraph 2.10; Specifies 20” diameter exhaust piping. To meet specified 90% max back pressure design our Tier 4 system may require up to 24” diameter piping, pending final exhaust routing design detail. Please confirm if this is acceptable.

Answer) 24 inch diameter is acceptable.

101 Question) Paragraph 2.12; please advise maximum number of run hours per year required.

Answer) Each generator will be limited to 100 hours of non-emergency (O&M testing) run time per year.

102 Question) Paragraph 2.31.2.10 (b); Is mapped programming with NOx monitoring acceptable in lieu of closed loop only?

Answer) Mapped programming is not allowed as the means of control. A closed loop is mandatory.

103Question) We request a 4-week extension for this bid. The restricted document distribution procedures and complicated nature of this project warrant an extension. Major subcontractors and suppliers do not expect to be complete with pricing by July 12th.

Answer) Time extension was granted for one week

104 Question) Reference Details 1 & 2/A-072 The System B Alternate details do not indicate insulation or cementations protection board at the parapets. Please confirm that insulation and cementations protection board are not required at the parapets in Roof System B.

Answer) Insulation and cementations protection board type 1 is not required for Roof System B.

105 Question) Ref: Section B/ A-043 Please provide a detail for fire stopping at the beam penetrations.

Details 8 and 9/ A-076 indicate fire stopping details for the braced frame and horizontal girt penetrations but no detail is provided for the beam penetrations

Answer) Refer to sheet A-001 for UL assemblies and provide fire stopping which comply with all requirements of the listed UL assemblies.

106 Question) On Sheet C-017 Key Note 20 indicates that the Gas Line is “By Others”. On Sheet C- 020, Key Note 22 also indicates that gas line is “By Others”. Also on Sheet C-020 General Note 9 indicates that “Contractor responsible for contracting with BG&E for installation of proposed gas line. All cost associated with the installation of the gas line, meter, etc. shall be assumed by the contractor. Gas line to be designed and constructed as per BG&E Standards”.

Answer) The contractor will need to sign contract and coordinate with BGE for BGE to design, supply and install the exterior natural gas line. A bid item that includes a BGE allowance will be provided in

CLIN 002.

107 Question) Specification 26 05 13 3.2 , page 10 final paragraph. Under what conditions shall the Contracting Officer use his discretion to order radiographic test on all potheads? Should the bidders include the cost of such tests in our bids?

Answer) Yes, radiographic test on all potheads shall be included in bid.

108 Question) Ref. Plan ES-039 Note 7 and schematic reference to “Aux Devices”: Please provide quantity of auxiliary devices to be connected per RTU

Answer) "Auxiliary devices can be found in Appendix C I/O List is Section 25 10 20 that include:

LTC (T1) - 115 - 13.8kV Transformer T2 Load Tap Changer

LTC (T2) - 116 - 13.8kV Transformer T1 Load Tap Changer

ATS-9950-B - 480 V Automatic Transfer Switch

ATS-9950-C - 480 V Automatic Transfer Switch

Battery Charger (B-1) - Battery Charger 1 in Building 9950-B

Battery Charger (B-2)- Battery Charger 2 in Building 9950-B

Battery Charger (C-1) -Battery Charger 1 in Building 9950-C

Battery Charger (C-2)- Battery Charger 2 in Building 9950-C

BMS - B -BAT-9950-B Battery Monitoring System

BMS - C -BAT-9950-C Battery Monitoring System

In addition, there is a requirement for all power distribution panels to have a power monitoring device which is to be connected to the SCADA system. These were not itemized on the I/O list but assume 2 panels for each substation building. The total auxiliary devices for the substation are 14."

110 Question) Ref. Existing medium voltage cables in UG distribution: Please identify the type of cable to be removed and/or spliced into the new cables?

Answer) Per information provided, all existing are EPR.

111 Question) The cables and manholes are not listed on the Z series drawings, so may we assume that there is no asbestos present?

Answer) Correct, no asbestos present for cables and manholes.

113Question) Ref. Bid Date-We are hearing from several key suppliers that their proposals, if completed, will not be optimal (i.e., their best price) due to the lack of time for preparing their proposals.

We have also had several decline to bid based on the timeframe. Because of this, we ask one more time for consideration in extending the bid date. I respectfully offer that a bid extension is only useful if it comes soon enough to actually extend the process. If people have had to walk away from bidding, and they find out near the end of next week that it pushed one week, they will still only have one week and may still have to decline. Your consideration is appreciated.

Answer) Time extension was granted for one week

114 Question) Specification Section 07-42-63; Part 2.1.3 calls for a 4” thick factory formed insulated panel to be used as blank-off panels at the louvers. The Architectural or Mechanical drawings do not indicate where these blank-off panels are. Are blank-offs panels needed vertically on both sides of the intake sheet metal transitions? If so, please indicate the size. Or are the blank-off panels not needed?

Answer) Refer to sheet A-038 for location of architectural insulation blank off panels. Panels are required behind each louver in the generator barn which is not utilized by an exhaust fan.

115 Question) The flow rates for (5) FCU’s and (1) CRAC are greater on the Chilled Water Flow Diagram drawing M-023 than what is listed on the equipment schedules on drawing M-029. What are the desired flows?

Answer) The schedules are the basis on which these units are to be based. However the flow rate on CRAC-B-4A is increased to 2.0 GPM

116 Question) Specification Section 07-42-63; Part 2.1.2 Foam Insulation Core Wall Panels. Centria’s panel was the basis of design. Please indicate the guage of the material for the exterior face skin and the interior face skin.

Answer) Minimum 22 gauge for exterior and interior face of insulated wall panel.

117 Question) Specification Section 07-42-63 Part 2.1.5 indicates to “provide corrugated metal sheets (1 ¼” x ¼”; 20 ga galvanized steel sheets) perforated with ¼” holes at 5/16” centers at interior of the Generator Building. Please specify a manufacturer for these panels.

Answer) Provide panels which meet the performance specification as outline in section 07 42 63.

119 Question) Reference Section 015000-3.1 Employee Parking. Does the Contractor or the Government pay for the off-site parking lot?

Answer) The contractor pays for off-site parking

120 Question) Reference Section 015000-3.1 Employee Parking. Will the Government identify the location to be used for the off-site parking lot?

Answer) No, this is at the discression of the contractor

121 Question) Reference Section 010500-1.14 Maintenance of Utilities. This section states that the Contractor is to provide and/or maintain toilet facilities for Government personnel throughout construction. Please advise how many Government personnel we are required to provide and/or maintain toilet facilities for.

Answer) The contractor will be responsible for providing enough temporary toilets for its own use; not for government employees.

125 Question) Section 013201.0010-3.3 states that the Contractor is to provide two licensed copies of the selected scheduling software to the Owner. Section 010000-1.3.2 states that the Contractor is to provide one copy of the scheduling software to the Owner. Please advise if the Contractor is to provide one or two copies of the scheduling software to the Owner.

Answer) Provide 2 copies of scheduling software

126 Question) Section 013553-1.2 requires the Contractor to provide a security service to monitor/control access to the construction site. This paragraph also states that the security service will issue access badges daily to all personnel entering the construction site. Are the access badges that the security service hands out provided by the Government?

Answer) No specific government badges are required. The general contractor is responsible for issuing and tracking their own bades to all workers cleared to be on site.

129 Question) Section 015000-3.5.1 includes a requirement for the Contractor to provide an office for the Resident Engineer. This section is not clear on the number of office desk(s) and chair(s) required. Are we to provide one (1) desk and chair, or are we to provide fifteen (15) desks and chairs?

Answer) The contractor shall provide 14 workstations one office and 15 office chairs.

130 Question) Is the Government or the Contractor required to clean the Resident Engineer's office? If the Contractor is required to clean it, please advise what the frequency of cleaning is.

Answer) The contractor is responsible for cleaning the Resident Engineer trailer at least twice a week.

131 Question) "Is the Government or the Contractor required to pay for the following utility consumption charges for the Resident Engineer's office:

a. power bill, whether it be BGE's power bill or fuel costs for generators;

b. water bill;

c. sewer bill;

d. internet usage;

e. telephone bill. "

Answer) The contractor is required to pay power, water, sewer, internet and telephone bills for the Resident Engineer Trailer.

132 Question) "Section 015000-3.5.1 includes a requirement for the Contractor to provide an office for the Resident Engineer with ""chairs for conference table"".

a. Do you also want the Contractor to provide a conference table?

b. How many chairs are needed? "

Answer) The contactor shall provide a conference table that can seat at least 30 personnel comfortably.

133 Question) Section 015000-3.5.1 includes a requirement for the Contractor to provide an office for the Resident Engineer with "copier/fax machine combination". Is the Government or the Contractor required for repair maintenance of the copier/fax machine?

Answer) The contactor is not required to provide a copier/fax machine for the Resident Engineer office.

All IT and communications infrastructure for the Resident Engineer trailer will be provided and maintained by the government.

137 Question) See drawings S-006 and A-012. An area at gridlines F-6.6 is shown on S-006 to have a concrete topping. The architectural drawing does not show this concrete cricket. Please clarify if this area is to have a sloped concrete topping as per the structural drawing.

Answer) Area between gridlines F-G.6 is to have sloped concrete as per structural drawing.

138 Question) See drawings S-029. Sump pit openings are shown in the 14” mats but there are no details shown for how the sump pits are designed or elevations given for the pit depths. Please provide a section cut through the sump pits.

Answer) The sump pits basins and valve vaults are shown on the Plumbing drawings as prefabricated fiberglass assemblies with steel bases. Please refer to the Plumbing drawings for the sump pit design requirements and Architectural drawing A-098 detail 3.

139 Question) Per Plan C-069, Detail #3 shows the pipe between the lift station and valve vault as 4” lines and in the plan view shows 2” lines. Please clarify if we are to use 2” or 4” and what type of pipe material is required

Answer) The fittings for the sanitary lift station as shown on C-069 should all be 4” (i.e. 4” x 4” tee and 4” 90° bend). Pipe material is to be DIP class 52 as stated in spec section 33 32 13.14.

140 Question) Specification section 09 90 00, paragraph 1.3.2, requires that the painting subcontractor for the project be SSPC QP1 certified prior to contract award and throughout the life of the project. This certification typically applies to marine structures and does not seem applicable for this project. The requirement will also greatly reduce the field of available subcontractors. Please clarify if the SSPC QP1 certification is required for this project.

Answer) Certification is required for all painting subcontractors.

141 Question) Specification section 02 41 00 for demolition contains references to dismantling and salvage of various items such as structural steel and light-gage framing, that do not appear applicable to this project. Please confirm that the means and methods of demolition will be left up to the contractor, and the intent is for the contractor to demolish and remove all materials from the site, with the exception of the breakers and relays listed to be salvaged in section 01 05 00, paragraph 1.13.

Answer) Yes, means and methods are up to the discretion of the bidder/contractor. Contractor is to demolish and remove all items unless otherwise noted in plans or specifications and as stated in Section 01 05 00 paragraphs 1.13 and 1.9.2.

142 Question) BGE has advised that they cannot provide an estimated cost for temporary power without going through the process of filing for a service request and subsequently completing a design. Since BGE cannot provide an estimate at this time, bidders will have to carry costs for generators and fuel which will be extremely costly over a three year period. Would the Government reconsider allowing us to tap into an existing power source close to the jobsite?

Answer) No

143 Question) Amendment 1 identifies Open Systems International (OSI) as the sole source provider of the SCADA software. Is it the Government’s intention to sole source the required on-site programming of the OSI Monarch application software to OSI as well?

Answer) Yes

145 Question) Per specification section 26 05 13, paragraph 2.4.1, the copper tape overlap on the MV cables shall be 33%. The standard for the industry is 25% overlap. The 33% overlap specified would have to be custom ordered which means minimum order quantities, longer lead times, and higher cost. If the contractor is able to provide calculations justifying that the 25% overlap is adequate for the conditions would the 25% overlap be acceptable?

Answer) 25% is acceptable.

146 Question) Specification section 01 35 53, paragraph 1.18 states that any company requesting documentation for the project must be a wholly owned and operated U.S. company. Many industry leading companies such as Siemens and ABB are not wholly owned and operated U.S. companies and would therefore be eliminated from participation. Please confirm if this is the Government’s intent.

Answer) State in the SF 328; this does not preclude companies from involvement.

147 Question) Please confirm that Offerors must include cost for temporary power under CLIN 0001.

Answer) Yes

148Question) Many subcontractors interested in bidding this project are having difficulty obtaining plans and specs for the job. In order to be able to submit a more complete proposal to the Government, we respectfully request a one (1) week extension for this bid.

Answer) Time extension was granted for one week

149 Question) 07556 par.2.2.2: Specs call for 2-ply bituminous flashing; however, per the manufacturer’s basis of design, the 30yr system warranty does not require a 2-ply system due to the flashings being covered by Hydroguard. Please advise as to whether 1 layer of bituminous flashing will suffice.

Answer) As long as the installation will get a 30 year manufacturer’s warranty, one flashing layer is acceptable.

150 Question) In details 1/A-046 and 1/A-050, the vertical cement faced insulation is shown stopping above the rigid insulation below the ballast. Per the manufacturer, a 30 year warranty cannot be obtained unless the vertical insulation runs below down to the deck with the horizontal insulation butted up to it to hold it in place. Please advise.

Answer) Extend the vertical cementations insulation board down to the deck with the horizontal insulation butted up to it to hold in place as recommended by manufacturer to achieve 30 year warranty.

151 Question) 074113 par.1.8: Specs call for a 30yr water-tightness warranty, 30yr finish warranty and a 30yr installer warranty at the pump house metal roof. A 30yr water-tightness warranty and 30yr finish warranty are not available from the manufacturer. A 30 yr installer’s warranty is also unavailable. Please advise warranty requirements.

Answer) All 30 year warranty is required per owner’s requirements.

152 Question) 05556 – General: The basis of design roofing manufacturer requires an electronic vector field mapping leak detection system to be installed within the roofing system in order to provide a 30yr manufacturer’s warranty. Please advise basis of design.

Answer) Requirement is for a 30 yr manufacturer’s warranty with no leak detection system.

153 Question) Three roof hatches are shown on drawing A-005 as 3’-6” x 6’-0”. No spec is given for the roof hatches. Please advise a basis of design.

Answer) Roof hatch can be found in specification 05 50 13 section 2.19.

154 Question) Specification section 075556, paragraph 1.2 says that the contractor is to indicate which of the two roofing system options A or B the contractor proposes to use. Where specifically is the bidder to indicate this in the proposal?

Answer) Insert this information under Volume 1 Technical Factor 5.1.4 Factor 4- Project Management Plan

155 Question) Drawings show dual generator controls currently. Do you really require dual controls for the solicitation

Answer) Yes.

156 Question) Testing requirement currently requires a 50 MW system test. How do you intend for the contractors to supply the necessary load banks to achieve that The goal is to avoid having 50 MW worth of load banks out there and cost those items in our proposal, where as our competitors may not.

Answer) Yes, full capacity test is required by MPO.

157 Question) What type of battery monitoring system is required for each of the 125 VDC Switchgear battery systems and 24VDC generator battery systems?

Answer) The battery monitoring system is fully described under the Battery and Battery Charger Spec.

Section 26 05 35 para 2.3.

158 Question) What are the specifications of the transformers downstream of the MV ATS? (Reference drawing EG31 transformers N13K-XFMR-1E9 and N13K-XFMR-1E10)

Answer) The specification is under Section 26 11 16.

159 Question) There is potential conflict regarding the subtransient requirements for the generator end.

Are we required to supply subtransient according to the specification or standard ISO 8528-5 grade G2 on the generator end? (Reference specification section 263215 paragraph 1.3.1 page 6)

Answer) Please follow 12% as indicated in the specifications.

160 Question) Is an engine driven radiator accptable?

Answer) Yes.

161Question) Request that bid be extended till 7/22/11

Answer) Time extension was granted for one week

164 Question) Please provide a specification and details for the access hatches into the Substation tunnel.

Answer) Basis of design for vault access hatch is Bilco type JD-H20 steel, size 48”x72” or approved equal.

165 Question) We are requesting an extension of the due date for the referenced solicitation of 10 calendar days. We believe this is reasonable for the size and scope of this project.

Answer) Time extension was granted for one week

166 Question) With regards to above referenced project, we request an extension of submittal due date to complete a concise proposal with highest value for US Government.

Answer) Time extension was granted for one week

167 Question) The Finish Schedule on Sheet A-081 indicates that the ceilings in the Generator Rooms are to be Acoustical Plaster. Please confirm that Detail 1/A-076 is the applicable detail for this condition above all Generator rooms.

Answer) Detail 1/A-076 is the applicable detail at generator rooms.

168 Question) Please confirm that the acoustical plaster ceilings in the Generator Rooms are interrupted by the structural steel beams.

Answer) Acoustical plaster is interrupted by the structural steel beams.

169 Question) Plan ES-079 shows mostly 24"w x 24"d Cable Trench, which is a light vehicle-rated trench. The details shown on ES-053 indicate 24"w x 16"d, which is a pedestrian-rated trench. There is no specification for the Cable Trench. Please confirm the size and ratings of the Cable Trench.

Answer) All Cable trench should be light vehicle -rated trench.

170 Question) Specification Section 12 24 13 – Roller Window Shades page 3, paragraph 3.2 – Window Treatment Placement Schedule states: “To be provided for the Conference Room and Ready Room.”

The Ready Room (Rm 111) is shown in the drawings on the ground floor plan; there is not a conference room shown anywhere in the drawings. Is there only supposed to be window shades in the Ready Room?

If not what other room is to have window shades?

Answer) Window shades are to be provided only in the Ready Room.

171 Question) Specification Section 41 22 13.14 – Bridge Cranes, Overhead Electric, Top Running page 8 paragraph 2.1.2.a – Speeds states that “Hoist – rated speed of 19 feet per minute/3.3 feet per minute – 2-speed.” Is 3.3 feet per minute the correct speed for the hoist speed or should it read 33 feet per minute?

Answer) Hoist speed for a 2 speed motor should be 19 ft/min maximum and 3.3 ft/min minimum.

172 Question) Specification 01 11 00 - paragraph 1.5 identifies GFGI portions of the project. Regarding the SCADA and Telecom, please provide a more specific scope of work that the government will be performing as the descriptions given are insufficient to determine what scope of work the contractor is responsible to perform.

Answer) See Response to RFI # 199

173 Question) Specification 01 11 00 – paragraph 1.5 identifies the GFGI Security components. Is the contractor to provide pathways only or both pathways and wiring? If wiring is required please provide additional information which details wiring requirements.

Answer) See RFI # 52

174 Question) "Drawing C-017 Key Note 20 states “Natural Gas Service Main (by others)” and Drawing C-020 Key Note 22 states “Approximate Alignment of 2” PE Gas Line (by Others)”. General Note 9 on Drawing C-020 states “Contractor responsible for contracting with BGE for installation of proposed gas line. All costs associated the installation of the gas line, meter, etc. shall be assumed by the contractor. Gas line to be designed and constructed as per BGE standards.

Questions:

A: Is the gas line referenced in Key Note 20 on C-017 & Key Note 22 of C-020 the same line referenced in General Note 9 on C-020?

B: If so, and the contractor is responsible for the costs associated with this gas line, will the design be provided by BGE?

C: will an approval of this design be required by the owner?;

D: has the owner coordinated in advance with BGE the anticipated gas load demand of the project for this service?"

Answer) "A. Yes.

B. The contractor will need to sign contract and coordinate with BGE for BGE to design, supply and install the exterior natural gas line. A bid item that includes a BGE allowance will be provided for this work.

C. Design should be submitted for review and approval by owner.

D. AE and BGE have performed preliminary coordination including gas load demand for project under BGE Service Application WMS# 0001930400."

175 Question) In line with the previous question, Specification Section 05 51 00 – Metal Stairs paragraph 2.17 – Protective Coating states in part “Galvanize steel work which is located in generator area or in exterior locations”. Details on Drawing A-068 indicate the exterior Stairs 7 & 8 to be painted.

Please advise if Stairs 7 & 8 are to be galvanized, painted or both. If painting is required please advise on type of coating

Answer) Metal stairs should be galvanized with high performance coating. See specification 09 96 00.

176 Question) Specification 071400: Section 1.1.1 indicates that this waterproofing is used at below grade foundation walls only. Section 3.4.3 requires a flood test which is normally only provided for roofing applications and would be impossible to conduct in this application. Please confirm that 071400 Section 3.4.3 is not applicable.

Answer) Flood test is not applicable for below grade foundation walls.

177 Question) See A-023. Please provide an elevation for the exterior wall opposite of elevation “C” as shown in the Key Plan in the bottom right corner. If the elevation “C” is an exact copy of the opposite direction please confirm that elevation “C” on A-023 is to be used twice.

Answer) Refer to sheet A-003. Exterior wall opposite of elevation C is an exact copy of elevation C but in the opposite direction.

178 Question) Specification 07 81 00 3.6 states that the Contracting Officer shall select an approved testing agency and that the cost shall be borne by the Contractor. For this case, and similar ones that may be included in other spec sections, where the Contracting Officer selects the Testing Agency, but the costs are borne by the contractor, please provide an allowance.

Answer) The language will be changed to reflect that the Contractor will be responsible for testing . This should read that the Contractor is responsible for selecting the third party.

179 Question) Specification Section 12 24 13 (Roller Window Shades) specifies window shades to be “provided for the Conference Room and Ready Room” in the building. No room on A-083 is labeled "Conference Room". Please clarify.

Answer) Roller window shade is to be provided only in the Ready Room.

180 Question) The structural notes on S-001 call for the light-weight concrete to be 3000 psi without air entrainment. The Generator Bldg. Roof is 1-Rated. If there is a UL fire rating on the roof, air entrainment of 5.5+-1.5% is almost mandatory; of the sixteen D-9XX ratings, 14 require air. Please revise mix design to include 5% +/- 1.5% air.

Answer) The general note on S-001 will be revised to include air entrainment for the lightweight concrete.

181 Question) Drawing EG-031 shows feeders 2-1G and 2-2G as existing from new manhole MH-G115 to existing manhole MH-G110. The site plans on drawings E-008 through E-013 show this ductbank as new. This same situation also appears on feeders 2-1H and 2-2H from new manhole MH-H115 to existing manhole MH-H110. Please clarify.

Answer) Feeders 1G and 2G are new. Please disregard (E) labeled next to runs between MH-G/H110 and MH-G/H115 on EG-031, and follow the information shown on E-022.

182 Question) "Drawing EG-031 is unclear regarding the ductbanks between manholes MH-G115, MH- G110 and MH-G109. We believe the intent is the following. Please confirm.

a. The ductbank and feeders 2-1G and 2-2G between MH-G115 and MH-G110 should be new, not existing.

b. Pull new feeder 2-1G from Switchgear #2 to MH-G109 and splice to existing feeder 2-1G within that manhole.

c. Pull new feeder 2-2G from Switchgear #2 to MH-G110 and splice to existing feeder 2-2G within that manhole.

d. Remove existing feeder 2-2G from the existing ductbank between MH-G109 and MH-G110.

e. Remove existing feeders 2-1G and 2-2G from Substation #4 to MH-G109."

Answer)

a. Please see response #181 above. Both ductbank and feeders are new.

b. Confirmed.

c. Confirmed.

D. Confirmed.

E. Confirmed. Please note that one 1G for traffic signals is retained under keyed note #8 of E-021."

183 Question) A similar situation to question # 182 appears on the Switchgear #1 side with feeders 2-1H and 2-2H. Please confirm the same intent as above.

Answer) Yes, similar to response #182, but note 1H is retained for traffic signals.

184 Question) "Drawing EG-031 is unclear regarding the ductbanks between manholes MH-A110A, MH-A110 and MH-A109. We believe the intent is the following. Please confirm.

a. Pull new feeder 1-9G from Switchgear #2 to MH-A110A and 3-way splice to existing feeder 1-9G within that manhole. Existing feeder 1-9G from MH-A110A to MH-A110 remains in place.

b. Convert existing 3-way splice on feeder 1-9G in MH-A110 to 2-way splice.

c. Pull new feeder 1-5G from Switchgear #2 to MH-A109 and splice to existing feeder 1-5G within that manhole. Feeder 1-5G from MH-A110A to MH-A110 and MH-A110 to MH-A109 should be new, not existing.

d. Remove existing feeder 1-9G from MH-A110 to MH-A109.

e. Remove existing feeders 1-5G and 1-9G from Substation #1 to MH-A109."

Answer) "Please note that drawing EG-031 is intended to schematically show cabling, not ductbank. For ductbank and feeder routing, please see site plans E-008 thru E-012 and the manhole foldout drawing s E- 021 thru E-023.

A. Confirmed.

B. Confirmed.

C. No, 5G is new from NSS to MH-A110, and is existing to remain between MH-A110 and MH-A109.

D. Confirmed.

E. Confirmed, but to Sub #4, not Sub #1."

185 Question) A similar situation to question #184 appears on the Switchgear #1 side with feeders 1-5H and 1-9H. Please confirm the same intent as above.

Answer) Yes, similar to response #184.

186 Question) Drawing EG-031 shows removal of the existing cabling from the existing ductbanks from Substation #1 and Substation #4. The routing of these ductbanks is not shown on the site drawings E-003 through E-013. Please provide a drawing showing the routing, or provide distances and number of manholes we will be required to access.

Answer) Please see drawing C-028. The distance between the two Substations is approximately 800 feet.

Feeder 15A and 15B each has 2 set of 3-750kcmil MV cables.

187 Question) Note 8 on drawing ES-054 states 20 foot ground rods. Detail 6 on ES-055 shows 10 foot ground rods. Which is correct?

Answer) Typical details shows 10' rod and the connection above ground. Specs and Calcs call out for 20' Rods which can be made up of two 10' rods with appropriate coupler.

188 Question) The generator rooms indicate daylight sensors in these rooms. Fixture types K in these rooms do not show dimming ballasts in the schedule. Also, no windows are shown in these rooms. Please advise if sensors are required.

Answer) Please disregard the daylight sensors.

189 Question) The plant schedule on sheet J-002 indicates the size for the Picea abies (PA) to be 8"-10".

Please confirm that this is supposed to be 8'-10'.

Answer) Picea Abies (PA) should be 8’-10’ in height.

190 Question) Specification section 26 24 10 page 7 item 1.6 second para stipulates that the paralleling gear shall be designed, manufactured and warranted by the generator set manufacturer as a single source supplier. Specification section 26 32 15 00 page 44 para 2.3 writes that “If the paralleling controls are not supplied by the generator set manufacturer, then they all need to be factory tested together in groups of three generators” Above two statements are contradictory.

Answer) It appears that the two requirements are complementary of each other. The gear and the generator shall be supplied from a single source, but can be manufactured by different manufacturers.

191 Question) Cummins will design, manufacture and warranty the entire emergency power supply system as a single source supplier. It is our understanding that Cummins will not have to Factory test generators in groups of three. Need confirmation.

Answer) Incorrect, factory test is required in group as indicated.

192 Question) Reference drawing S-002 Note I.2 regarding the switchgear building foundations, since the foundations shown are the basis for Proposal and we are not the Designer of Record, please confirm that any work and costs associated with redesigning the foundations will be a change order to the Contract, and that design revisions will be accomplished by the Designer of Record.

Answer) Any revisions to the basic geometry or configuration of the switchgear enclosures will require the contractor to evaluate and confirm adequacy of the foundation supports shown on the contract documents at the contractor’s own expense.

193 Question) Please provide anchorage details for the support beam at the switchgear enclosures.

Answer) The beams shown around the perimeter of the bases of the switchgear enclosure are schematic only. The specific anchorage requirements shall be determined and coordinated based on the approved submittals of the switchgear enclosure framing prepared by the contractor.

194 Question) Reference drawing S-036, plan 1 regarding the fuel tank ring walls, since the ring walls shown are the basis for Proposal and we are not the Designer of Record, please confirm that any work and costs associated with redesigning the ring walls will be a change order to the Contract, and that design revisions will be accomplished by the Designer of Record.

Answer) Drawing S-036, Detail 1 specifically states that "ring wall to be designed based on the tank manufacturer requirements" The tank specifications state that the tank and foundations are a delegated design by the tank manufacturer. All design of the tank and its foundation shall be the complete responsibility of the Contractor’s engineer.

195 Question) In regard to the fuel tank foundations, please provide a section showing the foundation requirements.

Answer) The tank specifications state that the tank and foundations are a delegated design by the tank manufacturer. All design of the tank and its foundation shall be the complete responsibility of the Contractor’s engineer.

196 Question) Drawing ES-054, Note 1 directs the contractor to perform earth resistivity tests. Please confirm that tests and calculations are for the purpose of verifying the design team’s design only, and is not meant to be a performance specification? If this is meant to be a performance specification, please provide all the design criteria levels.

Answer) The earth resistivity tests are meant to be performance specification with design criteria as described in Note 1 of drawing ES-054 and specification 26 11 14.00 10 para. 3.4.

197 Question) Drawing ES-054, Note 2 makes reference to a 300’ x 140 x 7’6” deep soil exchange (approximately 15,000 cubic yards including laybacks) with an engineered soil mixture of “50 ohm metered engineered soil.” Please confirm whether this work is to be performed by the Contractor. If required to be performed, please provide specifications for the soil mixture, including soil structural and electrical conductivity requirements.