18R0007_Amendment_0007.pdf

ACQR5170338

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

DESIGN-BID-BUILD SMALL BUSINESS MULTIPLE AWARD CONSTRUCTION CONTRACT FOR NEW CONSTRUCTION, REPAIR, AND RENOVATION OF VARIOUS FACILITIES AT NAVFAC WASHINGTON AREA OF RESPONSIBILITY INCLUDING BUT NOT LIMITED TO

WASHINGTON, D.C., MARYLAND AND VIRGINIA

The purpose of this amendment is to provide the follow ing:

1. Responses to RFIs

2. Extend Proposal due date/time to April 17, 2018 BY 2:00 PM EST

All other terms and conditions remain unchanged.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 15

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

16C. DATE SIGNED

BY 03-Apr-2018

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 N4008018R0007

X 9B. DATED (SEE ITEM 11)

26-Feb-2018

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 X is extended, 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 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

03-Apr-2018

CODE

NAVAL FACILITIES ENG COMMAND

1314 HARWOOD STREET SE

WASHINGTON DC 20374

N40080 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

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Response: The above-the-ceiling work should only be done during the building's regular hours (0600- 1400, M-F). The only off-hours work in the project will be in the case of any outages that must unavoidably occur on the weekend. This is driven by the need to limit outages to less than 4 hours.

Escorts will be arranged on a case by case basis for off-hours work due to weekend outages.

96. Amendment 0002 specified product for grating. The drawings call out the grating to be GW-150A Galvenized.

Section 05 12 00 R1 states:

b. NAAMM MBG 531 or NAAMM MBG 532, band ends of gratings with bars of the same or greater thickness than the metal used for grating. Weld banding bars to the bearing bars or channels at least every fourth bar or channel and in every corner. Tack weld intervening bars or channels. Band diagonal or round cuts by welding bars of the same or greater thickness metal used for grating in accordance with the manufacturer's standard for trim unless otherwise indicated.

Is a welded frame required at the ends of every field cut grate? Is field galvanized paint acceptable on all cut parts?

Response: Yes to both questions.

The structural beams supporting the grating are approx. 4’-10” o.c. What is the deflection allowed for the grating that spans from beam to beam?

Response: Limits for grating deflection are not defined. Provide grating that matches the basis of design specified in the contract documents.

107. Reference: NRL 210 Replace Electrical controls and transfer switched drawings set, E101, Note 2. The note is calling for 25% of existing acoustical ceiling tiles to be replaced. Please provide applicable acoustical tile specifications.

Response: Contractor shall make arrangements for purchasing broken tiles through NRL facility support contractor (Spectrum CBS).

108. Who is the current HVAC controls service contractor for Building 210?

Response: There is not an active service contract for controls.

109. Who is the current chiller water treatment contractor for Building 210?

Response: Chemstar. See Note 22 on M-401 for contact information.

110. Is the freight elevator available for use to access or equipment delivery to the mechanical space/roof?

Response: The freight elevators are available on a first come, first serve basis when not in use by the Government. Passenger elevators shall not be used.

111. Is exterior scaffolding required for general access to the mechanical space/roof?

Response: No.

113. Will AISC Quality Certification be required for the steel/dunnage work on this project?

Response: The AISC requirement is waived.

114. Is there a warranty on the existing roof? If so, who holds the warranty?

Response: No warranty on existing roof.

115. Will a staging area for equipment/material be made available near the building?

Response: Yes

116. Will staging areas for a crane be made available adjacent to Building 210?

Response: Yes

117. Spec Section 01 14 00 1.2 a. States: The temporary chillers must be ready for operation as approved by Contracting Officer before work is started on chilled water plant demolition which would interfere with normal operation. Is a temp chiller required?

Response: See RFI #93 response.

118. Is a temp chiller required?

119. Is a nitrogen purge of piping required per spec section 23 64 26 page 19 paragraph 3.1.4.3?

Response: Yes.

120. Being its chilled water lines are being reworked what level of NDE and inspection is required.

Response: Refer to specification 23 64 26. Perform NDE in accordance with specification. NDE is not required for piping/welds of existing to remain portions of the system.

121. Can crane lifts be done during weekdays or do they have to be done on weekends.

Response: Can be done on weekdays but weekends preferred

123. SECTION 01 78 00 Page 2, paragraph 1.3.1.1 Working Record and Final Record Drawings … Revise 2 sets of paper drawings by red-line process to show the as-built conditions during the prosecution of the project.

SECTION 21 30 00 Page 11, paragraph 3.6.2 As-Built Drawings Submit As-Built Drawings, no later than 14 days after completion of the Final Tests. Update the Fire Pump Installation Drawings to reflect as-built conditions after all related work is completed and shall be on reproducible full-size mylar film. Q: The DOR owns the CAD drawings and is required to update the record documents. Please confirm the contractor will submit Red Line (hand marked) drawings to the CO upon final completion.

Response: The Contract Documents, including the drawings, are the property of the Government.

124. If the government is to award the CLIN’s separately, what is the period of performance for each CLIN?

Response: CLIN’s will be awarded at the same time.

125. The two sets of Specifications have completely different Division 1 requirements and in some cases contradict each other. Are we to assume that each Spec is to be used independently of each other and only used for the specific project referenced?

Response: No. Conflicts with the Division 1 requirements have been addressed through the RFI process.

Please review RFI responses for clarification.

126. The 2 sets of Specifications have different Submittal registers. Are we to use both?

Response: Both submittal registers are applicable and may be combined. Redundant submittals are not required to be submitted twice and a single submittal comprehensive of both CLIN-0001 and CLIN-0002 may be submitted where it is listed on both registers.

127. Will eOMSI be required?

128. At the site visit, it was observed once the Louver is removed for the removal and installation of Chiller 3 there will be a wall to cross. Is it permissible to build a platform on each side of the wall for moving the equipment into the facility?

Response: Yes. However, any damage to the roof as a result of temporary construction, overloading the membrane or insulation shall be the contractor’s responsibility to repair and replace.

129. What are the security requirements for building a temporary wall once the Louver is removed?

Response: No security requirements. Access control is maintained at ground level.

131. Will an FAA permit be required?

Response: If crane height is restricted to under 150’

132. Will escorts be needed and if so, are they provided by the Government?

Response: Escort is required for all personnel who do not have clearance of Secret or higher. See RFI 77.

133. One set of Specifications states that Commissioning is a first tier subcontractor and the other states that Summer Consultants will be the Commissioning agent and will be contracted by the Government. Which is correct or are we to follow each Spec for the specific project?

Response: See modification to specifications issued as amendment 0005

134. Drawing Controls and Transfer Switches pages E101-E103. There are multiple branch circuits that need to be relocated in areas we were not allowed to see during the site walk.

a. Will we have access to all area needed to reroute the branch circuits?

Response: No.

b. Will escorts be needed?

Response: See RFI 77.

c. Can the circuits be disconnected during normal business hours? If not what are the hours?

Response: Yes. Power must be restored within four hours of de-activation.

d. Do all of the floors and rooms have accessible drop ceilings?

Response: See RFI #95 Response

135. Drawing Replace Three Chillers E-101 Note 10 shows three pump controllers to be mounted on the back wall.

During the site walk it was observed that there wasn’t enough space on the back wall to mount the three controllers. Please advise.

Response: Provide the three pump controllers mounted on U-channel supports located in the open are in front of heat exchanger HX-1. Maintain required clearance for heat exchange plates

136. Please supply a key for the existing ATO drawing shown on E-601.

Response: The existing and modified ATO drawings were taken from the original GE submittals. The two letters with a rectangle boundary represents the identification tag of the device

137. Regarding note 5 on E-601. Will it be acceptable to replace the control relays and schematic shown with a more modern solution? The intent will be to prewire the PLC and controls auxiliary relays on backpans to the extent possible.

Response: No. Control power seek live source function shall be operated by discrete relays per original construction. The Control power system shall not be under the command of the PLC. Previous modernization projects to give the PLC command of the control power’s seek live source function failed, causing a constant back and forth between control power sources resulting in damage to the existing relays.

138. Please provide photos of existing ATO control panel, PLC cell, equipment.

Response: See RFI #16 response in regards to obtaining photos

139. Please provide make and model of switchgear and breakers related to the ATO.

Response: GE should be able to provide breaker information (i.e. type/date/serial # etc.) via reference #0166D3841( Shop order 916619). See attachment called “RFI # 39 GE Chart.”

140. Please provide ratings of Breaker Trip Control relay (e.g., SSR-O0210)

Response: See response #139.

141. Please provide make and model of under voltage relays related to the ATO.

142. Please provide the existing sequence of operations of the ATO.

145. Per the HAZMAT Report Conclusions and Recommendations: Lead-based and lead-containing paints were identified during the survey. Removal of materials with lead as a result of renovation activities does not necessarily constitute a lead abatement provided the removal has not been included in the renovation plans to reduce or eliminate a lead hazard. However, if lead materials are removed with the intention of reducing or eliminating a lead hazard, then the removal must be performed by a licensed lead abatement contractor.

Please advise if “reducing or eliminating a lead hazard” is part of the “intention” of this project and that these materials are to be abated as part of the general contractor’s scope, or if the report was provided simply to notify contractors of their existence.

Response: Report is to notify contractor of the existence of lead containing material. Contractor shall perform abatement if materials are disturbed in the process of performing the scope of work.

146. Are there any permits, from the base or the city that must be obtained prior to beginning any work?

Response: Refer to Division 01 of the specifications for required permits and items such as safety plans.

147. Will all project personnel be required to obtain a badge prior to beginning any work?

Response: Refer to specifications for access requirements. All personnel will need access via badge or pass. Requiring a badge in lieu of pass depends on the nature of their work and frequency of their activity on base.

148. Is there a cost to the contractor for obtaining a badge from the base?

Response: There is no cost for badges. Manpower to obtain badges is the responsibility of the Contractor.

149. Is a full time QC Manager required to be on the job site during the performance of either project?

150. Can the Superintendent also serve as the SSHO and implement and administer the contractor’s safety program and Government-accepted Accident Prevention Plan?

151. Please confirm that the Commissioning Agent for both projects will be employed by the Government and responsible for the development of all required commissioning plans.

Response: Confirmed.

152. The Replace Electrical Controls and Transfer Switches Project requires full preventive maintenance and testing according to NETA guidelines and manufacturer’s written instructions for the switchgear and all main, tie and branch circuit breakers (see drawings E-001 and E-601) prior to making any modifications to the controls. Is the contractor responsible for making any repairs that result from this preventative maintenance and testing before modifying the controls required by the contract documents?

153. Reference: Section 019100.15 – Total Building Commissioning. CLIN 0001 Specification Section 01900.15 paragraph 1.1 Summary states “The Commissioning Agent for this project has been employed by the Government.” CLIN 0002 Specification Section 019100.15 paragraph 1.1 states “Employ the services of an independent Commissioning Firm. The Commissioning Firm must be a first tier subcontractor of the General or Prime Contractor and must be financially and corporately independent of all other subcontractors.” Which of these is to be used to determine who is to supply the Commissioning Agent or Firm for this project?

Response: See response to RFI#45

154. Reference: Specification Section 013216.00 20 – Small Project Construction Progress Schedules. As only a

Critical Path Bar Chart Schedule is required for this project will Microsoft Project be acceptable for use?

Response: Any software may be used if it meets the requirements in the specifications.

155. Reference: CLIN 0001 – Specification Section 011400 – Work Restrictions. Paragraph 1.2.a refers to temporary chillers, yet Sequencing Notes on sheet M-001 calls for phasing of the chiller replacements. Will temporary chillers be required on this project?

156. Reference: MD-402 Notes. Per Note 3 states “Existing 10” CWS is the lowest obstruction in the path of egress between penthouse entry and chiller pads. Bottom of pipe is 77” AFF.” Existing 4” CWR is noted as 5’-10” AFF. Which of these heights is the actual lowest obstruction so we can determine how to purchase the new chillers?

Response: The 5’-10” height is west of the louver location and turns up prior to entering the path of travel for the chillers. The 77” as stated on the drawings is the lowest elevation encountered between louver and chiller pads within path of travel.

157. Reference: Drawing S-001 Note L.6. Note L.6 states “Existing grating shall be cleaned as directed by the Contracting Officer and touch up galvanizing shall be applied.” Drawing S-101 calls for all new grating?

Which of these is to be used for pricing this project?

Response: There is an area of existing grating to remain in place, shown in the north-west corner on sheet S-101. The note in question refers to this area of grating.

158. Reference: Roof Crane Access. As we have not been provided with a plan showing the overall building, where will we be able to set up a crane to access the roof for the removal of existing chillers and staging of the new chillers for Building 210D?

Response: See RFI # 67 response.

159. Reference: CLIN 0002 – Drawing Sheet E-102. Existing Circuit GC-14 in noted to go to Panel LUE21. This panel is not shown on any of the electrical floor plans. Please provide the location of this existing LUE21 Panel.

Response: See RFI #59 response.

160. Reference: Elevation 2/M-301- Generator Shroud. This elevation calls for 3 X 2 and 2 X 2 angles for the shroud framing. What is the thickness of these angles?

Response: Provide both angles at 1/4” thickness.

161. Reference: Elevation 1/M-301 – Generator Shroud. This elevation shows a door in the center of the Generator Shroud. Can we be provided with the specifications for this door, frame and hardware?

Response: The “door” is a SMACA access door, constructed per SMACA standards.

162. Reference: Existing Ceilings. Can we be provided with Reflected Ceiling Plans for CLIN 0002 area to properly determine the ceiling removal and replacement required for the installation of conduits?

Response: See RFI #95 response.

163. Reference: Steel and Aluminum Market. With the current state of the Steel and Aluminum market due to the tariffs being imposed subcontractors are only guaranteeing the proposals for 10 to 30 days. Due to the length of time it normally takes to review and award the MACC ‘s will we be provided with the opportunity to adjust our proposal due to any increased cost in these areas?

Response: The Government intends to award without discussions. Therefore, most likely, price adjustments during pre-award may not be applicable. However, FAR Clause 52.216-4-Economic Price Adjustment-Labor and Material will be added to the Seed Project.

164. Contract docs indicate demo of 210C air cooled chiller but does not reference associated piping, valves, etc.

Does this include piping, valves, etc.?

Response: Refer to MD-403 keynote 2. Piping and other appurtenances are indicated. Points of demolition for piping are indicated.

165. Contract docs require temporary chilled water sources for duration of project; no location is specified for this equipment. Is rooftop structurally capable of supporting this equipment? If so, location? If not, a location at ground level?

166. Specification 236410 – 2.3.c calls for “Motor enclosure type may be either TEAO or TEFC.” Is the purpose of this specification to address heat rejection by the chiller motor? If so, chiller heat rejection is typically ~1% of the chiller tonnage; would supplemental cooling be an acceptable substitution for this specification?

Response: In reference to Specification 236410, paragraph 2.3.c, delete sentence “Motor enclosure type may be either TEAO or TEFC”. Supplemental cooling is not required.

167. Some of the penthouse level metal floor grating was noted to be in poor condition and recommended to be replaced. Contract docs only indicate painting existing exposed surfaces. Should grating demo and replacement be included?

Response: The drawings call for the new grating to be galvanized, therefore the new grating does not need to be painted.

168. What is the definition of ‘GC’ as is indicated on the drawings as ‘Circuit GC-02’? For example on 1st floor Drawing E-101, it shows that existing circuit ‘GC-01’ is to be intercepted from an unidentified panel in Room 1440 and re-routed to existing panel ‘LU-102’ located in Room 1437. We need this information so that we and the tenants know what is being disconnected.

Response: Tenants will be made aware by NRL 210 facilities staff what equipment outages will affect.

169. Specification 23 64 10 - 2.3.c calls for "Motor enclosure type may be either TEAO or TEFC- Is the purpose of this specification to address heat rejection by the chiller motor? If so, chiller heat rejection is typically ~1% of the chiller tonnage; would supplemental cooling be an acceptable substitution for this specification?

Response: Refer RFI #166 response.

170. Amendment 0005, RFI 45 response states recommend these requirements be waived. Please advise if requirements are waived and if so exactly what?

Response: Specification 236426, paragraph 3.6 requirements are waived.

171. Amendment 0005, RFI 45 response states additional equipment will be required to properly maintain the cold loop independently of the current system. Who is to provide this additional equipment and exactly what needs to be provided?

Response: Subcontract with the existing vendor. Provide additional equipment under this contract.

172. Amendment 0005, RFI 45 response states Contractor shall subcontract to the existing water treatment contractor for this work whereas RFP Drawing M-401 Note 22 states to coordinate with the current company. Please clarify which is correct?

Response: Subcontract with the existing vendor. “Existing contractor” and “current company” are one in the same.

173. Please refer to RFP Replace Chillers Buildings 210D and 210C RFP Specification Section 23 64 26, paragraph 2.6, Water Treatment. It appears there is no contract requirement for water treatment of the condenser water except per Drawing M-401 Note 12. Please confirm if this is correct?

Response: Contractor is to subcontract to existing water treatment company for additional condenser water chemical treatment. Contractor is required to treat chilled water systems per specifications with any provider who meets the specification requirements.

174. For the chilled water the specifications says to provide a shot feeder for the chilled water. Is that the shot feeder shown on Drawing M-404?

Response: Correct, shot feeder for Building 210C on M-404 is new. Chilled water shot feeder for Building 210D on M-401 is existing and requires connection per note 12.

175. In conjunction with the above RFI, if not, where does the new one get installed?

Response: See RFI #174 response.

176. The specifications are vague regarding the water treatment contract requirement, specifically paragraph 2.6.2.

Please detail the full scope of any water treatment desired for this job.

Response: See RFI #170 through #174 responses.

177. Please refer to RFP Replace Chillers Buildings 210D and 210C RFP Specification Section 23 00 00, paragraph

1.2.3. Please detail what color coding of pipe means?

Response: Where paint or labels are provided for piping and existing color scheme is not apparent, provide in accordance with the color schemes of ASME A13.1.

178. Please refer to RFP Replace Chillers Buildings 210D and 210C RFP Drawing M-001 General Note G3. What are the pipe services to be painted and does insulated piping get painted?

Response: Condenser water piping and chilled water piping. Yes, paint pipe prior to insulation.

179. In conjunction with the above RFI, how many different colors are to be provided?

Response: Two colors, one unique color per system.

180. Please refer to RFP Replace Chillers Buildings 210D and 210C Drawing M-101 Note 1 and Drawing M-402 Note 1. What is the specific wording needed on all signs, charts and labels? It is the Gov.’s A/E’s responsibility to interpret building codes and specifications not the Contractors. Please provide detailed signage documents for our use in determining all cost accordingly.

Response: Provide diamond shaped NFPA placard per NFPA 704. NFPA signage will require coordination with chiller equipment refrigerant. For example, R-123 has Health – 2, Flammability – 1, and Reactivity – 0.

181. Please refer to RFP Replace Chillers Buildings 210D and 210C Drawing M-401 Note 3 and Drawing M-402 Note 7. Please provide a detailed sketch indicating the sizing of the refrigerant relief piping, valves etc. and configuration.

Response: General routing and size of relief pipe is indicated on floor plans. Install per contract documents and manufacturer’s recommendations.

182. Please refer to RFP Replace Chillers Buildings 210D and 210C Drawing M-501 Chiller Piping Detail. Are strainers desired for the condenser and/or chilled water inlets to each water-cooled chiller? Please advise.

183. Please provide pictures of the existing chillers, heat exchanger, louvers and piping in the penthouse mechanical room.

Response: See RFI #16 response in regards to obtaining photos.

184. Please provide pictures of the chiller removal and installation pathways in the penthouse mechanical room as indicated on the RFP documents.

185. Please provide pictures of the existing cooling towers and the existing piping to each tower on the roof.

186. Please provide pictures of the existing rooftop dunnage, steel and grating.

187. Please provide pictures of the existing electrical equipment i.e. switchgear controls, automatic transfer switches, generators output breakers, fire pumps, panel boards etc. name plates.

Response: See RFI #16 response in regards to obtaining photos. GE should be able to provide breaker information (i.e. type/date/serial # etc.) via reference #0166D3841( Shop order 916619).

188. Please refer to RFP Replace Chillers Buildings 210D and 210C Specification Section 01 14 00, paragraph

1.3.1.2 .2, which states work hours for this project shall be determined by the Contracting Officer at the Pre- Construction meeting whereas paragraph 1.3.2 states regular working hours must consists of an period between 7am and 4pm Monday through Friday. Can we assume the normal working hours will be 7am to 4pm Monday through Friday? Please clarify.

Response: See RFI #77 response.

189. Please refer to RFP Replace Chillers Buildings 210D and 210C. Specification Section 01 14 00, paragraph 1.2.a, makes reference to temporary chillers whereas RFP Drawing M-001 Sequencing Note C implies phasing the removal/replacement of the chillers. It’s been our experience on all Design-Bid-Build NAVFAC solicitations the DOR always designs, details, specifies and provides all temporary chillers requirements. Please clarify if temporary chillers are required for this project and if so please provide a design?

190. If temporary chillers are required, what are the cooling load(s) in tons for the temporary cooling equipment to include loading changes/requirements per season or time period as well?

Response: Temporary chillers are not required.

191. If temporary chillers are required, where are they to be staged/set-upped?

Response: See RFI #190 response.

192. If temporary chillers are required, where will the electrical power source originate?

Response: See RFI #190 response.

193. Please refer to RFP Replace Electrical Controls and Switches Building 210 Drawings E-101, E-102 and E-103.

Note 1 on the referenced drawings states to intercept the existing branch circuit above the ceiling and extend the conduit and conductors back to the panelboard as indicated. In order to determine all cost associated with this task of work we will require all reflected ceiling existing as built documents. Please provide all reflected ceiling existing as built documents for our use.

194. Please refer to RFP Replace Electrical Controls and Switches Building 210 Drawing E-101 Note 2 and E-102 Note 3. Note 2 and Note 3 on the referenced drawings states to take down and reinstall the existing ceiling tile for installation of the branch circuit wiring and to allow for 25% new ceiling tile. Please confirm if this is correct and if so where as Note 2 and Note 3 are not indicated anywhere on the drawings. In order to determine all cost associated with this task of work we will require all reflected ceiling existing as built documents. Please provide all reflected ceiling existing as built documents for our use.

195. Please refer to RFP Replace Electrical Controls and Switches Building 210 Drawings E-101, E-102 and E-103.

Will we have complete access to all areas needed to reroute the branch circuits?

196. Please refer to RFP Replace Electrical Controls and Switches Building 210 Drawings E-101, E-102 and E-103.

Can the circuits be disconnected during normal business hours?

197. Please refer to RFP Replace Electrical Controls and Switches Building 210 Drawings E-101, E-102 and E-103.

Do all of the floors and rooms have accessible drop ceilings?

198. Please refer to RFP Replace Chillers Buildings 210D and 210C RFP Drawing E-102 Note 5. Note 5 states to switch and connect heat trace to Panel HUWD3. Please clarify if this is correct or should it be Panel HUW3?

Response: Connect to Panel HUW3 in Electric room 3311.

199. Please refer to RFP Replace Chillers Buildings 210D and 210C RFP Drawing E-101 Note 10. Note 10 shows three pump controllers to be mounted on the back wall. During the site walk it was observed that there wasn’t enough space on the back wall to mount the three controllers. Please advise.

Response: See RFI #135 response.

200. Please refer to RFP Replace Electrical Controls and Switches Building 210 RFP Drawing E-601 Note 5. Will it be acceptable to replace the control relays and schematic shown with a more modern solution? The intent will be to prewire the PLC and controls auxiliary relays on backpans to the extent possible.

Response: See RFI #137 response.

201. Please provide photos of existing ATO control panel, PLC cell, and equipment.

Response: See RFI# 16 response in regard to photos.

202. Please provide make and model of switchgear and breakers related to the ATO.

Response: See RFI #139 response.

203. Please provide ratings of Breaker Trip Control relay (e.g., SSR-O0210)

Response: See RFI#140 response.

204. Please refer to RFP Replace Electrical Controls and Switches Building 210 RFP Drawing E-601. On Drawing E-601 there are references to Sheets 33 and 35 in the existing switchgear ATO drawings. Please supply the referenced sheets for our use.

Response: See RFI#140 response.

205. Please supply existing as built switchgear drawings for our use.

Response: GE should be able to provide breaker information (i.e. type/date/serial # etc.) via reference #0166D3841(Shop order 916619).

207. We have a concern regarding the stated contract performance period for the SEED project of 360 calendar days duration. We have been advised that the fabrication and delivery lead time for the chillers can be as long as 16 weeks after submittal approvals, which when taking into consideration the mandatory 20 working day Gov.

review period (Section 01 33 00, 1.10.e), which we anticipate could take an additional 8 weeks for a total of 24 weeks (approximately 170 calendar days) thus leaving only 190 calendar days to complete the actual work.

Wherefore, we respectfully request that NAVFAC reconsider the contract performance period for the SEED project, we believe it should be no less than 420 calendar days. Please advise.

Response: Contract duration for the Seed project is hereby revised to 420 calendar days.

208. Drawing E-001 Notes that PM and Testing of existing switch gear will occur over weekend outages. Note 3 on drawing E-601 states that the draw-out breakers are restricted to 4 hour outages. How are these two statements to be understood? Is the breaker PM and Testing to occur only on weekends and only 4 hour per weekend or is the work to take place throughout the weekend in multiple 4 hour increments. If the latter is the case please provide the duration of time between outages so we can estimate the number of weekends needed for the Preventive Maintenance and Testing of all the existing switchgear breakers

Response: PM and Testing can take place throughout the weekend outage; however, there are a number of breakers, indicated by Note 3 on drawing E-601 substation schedules that are restricted to a 4 hour outage. Multiple four hour outages are permissible. Submit Outage schedules to Contracting Officer for approval prior to testing.

209. On drawing M-001 of BLDG 210D REPLACE THREE CHILLERS the drawing note reads ‘Asbestos containing materials have not been identified in the area of work’ however both projects BLDG 210D REPLACE THREE CHILLERS and REPLACE ELECTRICAL CONTROLS both have submittal requirements listed in the submittal register under section 02 82 12.00 20 for Asbestos Abatement Plan and subsequent submittals for the removal of asbestos. Please confirm that this spec submittal is not required and there is no identified asbestos or other hazmat material on either project

Response: Correct. No Asbestos Abatement Plan or other submittal under 02 82 16.00 20 is required.

Lead paint is present on the project.

211. Drawing E-001- Switchgear PM Note- What reports are available from previous testing, for use in this bid?

Response: Previous testing reports are unavailable.

212. Drawing E-101 Note 2 speaks of Ceiling Tile required. Please provide Ceiling Tile Spec to be used for this project.

Response: See RFI #107 response.

213. Drawing E401- Note 5 speaks of a Fire Pump Controller and Transfer switch. Please provide Spec’s for necessary Device. Please provide Commissioning requirements of the Fire Pump Controller and Transfer Switch.

Response: See specification section 21 30 00. The fire pump controller will be tested as specified, in addition, the interaction with the PLC will be verified to demonstrate that the generator is not overloaded when the fire pump is in operation and loads are added.

215. Drawing M-405- Note 5 ties to provision of heat tracing to various size pipes. Please provide “As built drawings” to allow quantification of existing pipe to meet this requirement.

Response: Pipe sizes and routing has been indicated on plan M-405.

216. .awing M-601 Solid Separator SS-1 is listed. Please provide acceptable type and model required for this project.

Response: Provide equipment that will meet specifications. Any manufacturer that meets the contract requirements is acceptable.

217. Drawing S-001 Will grating be required to be McNichols GW-150A be required or will an “or equal” be accepted?

Response: Grating is not required to be McNichols GW-150A, the name and model, as the basis of design, are provided to describe the salient features needed for the new grating.

218. Commissioning Plan- How will the Commissioning Plan be adjusted to reflect Seasonal Operations? Will there be two sets of testing (one for off season and one for main season)?

Response: Commissioning will operate in tandem with Test and Balance for Season 1 and Season 2 tests.

219. Will Appendix C have any check lists in the final Commissioning Plan?

Response: Yes, system verification checklists will be in Final Commissioning Plan.

220. Spec 23 07 00, Page 1. What cooling water is required for “off season operations”? Must this amount of

Cooling Water be maintained during the construction project?

Response: Reference does not apply to question. See M-001 Sequencing statement for required cooling capacity during particular months of the year.

221. Section 23 09 23.13 20, Page 12. Reference Phase I and Phase II training. Does a “one-time training” for each phase meet intent of client or does one time per Shift meet client intent?

Response: A one-time training is acceptable.

222. Section 23 09 23.13 20 Page 15 Section 2.1.2 DDC Software. Is the current Software current and up to date or will a software upgrade be required in addition to points adding for this project work?

Response: Siemens Apogee software is current. However, assume software will require an upgrade over the duration of the project and latest version release shall be provided prior to turning DDC system over to Government.

223. Section 23 09 23.13 20 Page 22 Section 2.3.5.1 Alarm Device. Will all Refrigerant Cooled Equipment in Plant need updating to meet this spec or only the new Chiller equipment?

Response: No other equipment containing refrigerant is present in the area of work.

224. Section 23 09 23.13 20 Page 23 Section 2.4.2.1 Power Line Surge Protection. Is the intent to have the new equipment include Surge Protection as well as modification of existing control boxes that may need Surge Protection?

Response: Provide specified surge suppression for equipment provided under this contract. The Contractor is not responsible for the presence or condition of surge suppressors within existing equipment.

END OF AMENDMENT 0007

(End of Summary of Changes)