ADDENDUM NO. 1 CITY OF FREDERICK PURCHASING DEPARTMENT 111 Airport Drive East Frederick, MD (301)

Transcription

1 October 31, 2017 ADDENDUM NO. 1 To: All Potential Proposers Subject: RFP 18-F Engineering Services for Ballenger Creek Interconnect Pump Station Consisting of: Pre-Proposal Meeting Minutes, Sign-in Sheet and Revised Proposal Form. Additional Files - Drawings, Lease Agreement, PRWA, Ft. Detrick Agreement, 2016 Tri-Model Report This addendum is made part of the solicitation documents to the same extent as though it was originally included therein. In the event of conflict with the original contract documents, the addendum shall govern over all other contract documents to the extent specified. Subsequent addendums shall govern over prior addenda only to the extent specified. The proposer shall be required to acknowledge receipt of the informational addendum by signing the acknowledgment of addendum page and including it with the proposal. Failure of a proposer to include a signed informational addendum in their proposal shall deem their proposal non-responsive, however, the City may waive this requirement if determined to be in its best interest. The City will not be responsible for any other explanation or interpretation made verbally or in writing by any other city representative. We look forward to receiving your proposals. Sincerely, The City of Frederick Keisha L. Brown, CPPB Purchasing Manager 1

2 ACKNOWLEDGEMENT OF ADDENDUM #1 The undersigned acknowledges that Addendum No.1 for RFP 18-F has been received by the undersigned and will be incorporated in all copies of said solicitation in the possession of the undersigned. It is understood that all proposals submitted in response to this project will be presumed to be based upon full knowledge of the contents of Addendum No.1. (Printed Name of Company or Individual) (Signature-Authorized Official) (Title- if applicable) (Date) 2

3 PRE-PROPOSAL MEETING MINUTES Date: October 25, 2017 Time: 10:00 am Location: DPW Training Room Project: RFP 18-F Engineering Services for Ballenger Creek Interconnect Pump Station Attendees: Keisha Brown Kiley Slimmer Marc Stachowski Ron Wingfield Gene Walzl Jason Michael Keith Brown Ben Arneson Rodney Winebrenner Prospective Bidders The City of Frederick Purchasing Manager The City of Frederick Purchasing Administrative Assistant The City of Frederick Deputy Director, DPW Operations The City of Frederick DPW Project Manager The City of Frederick- Project Manager, Utilities The City of Frederick - Supt. Water & Sewer Facility Maintenance The City of Frederick Asst. Deputy Director, DPW Operation The City of Frederick Superintendent of Water Services Frederick County Gov. Dept. Head, Engineering & Planning See sign-in sheet issued by The City of Frederick A. Comments by Purchasing 1. This is an optional pre-proposal meeting for all interested parties. 2. All questions pertaining to this solicitation shall be sent in writing to klbrown@cityoffrederick.com or fax at , with being the preferred method. 3. All addendums pertaining to this solicitation will be posted on The City of Frederick website and e-maryland Marketplace. 4. Minutes of this meeting and responses to submitted RFIs will be part of an addendum which should be issued by 10/30/ The last day for questions prior to the submittal date will be 11/21/17 by 3:00 p.m. 3

4 6. This is a City-funded project and there is no percentage or set-aside. Due diligence should be shown in attempting to include MBE/DBEs. 7. All forms in the solicitation package must be completed in their entirety and returned. 8. The proposals are due by 12/1/17 at 3:00 p.m. Note: The last page of this RFP mentions that the Price Proposal is a separate file for downloading. This was an error and can be deleted. There is no separate file. B. Comments by City Staff Ron Wingfield, DPW Project Manager: Ron informed potential proposers that the interconnect pump station was originally built in 2009 in accordance with the Potomac River Water Supply Agreement. The station consists of a 24 water transmission main and chemical enhancement facility. This facility was designed to be a gravity flow system that relied on perfect tank elevation between the two municipal water systems to enable a consistent flow. What the City is looking for is to provide the engineering services required to conduct a preliminary design, basis for design report and the complete design of the new pump station to include the modification/improvements needed to the existing chemical enhancement facility. We hope to keep the current chemical facility and adding a new building for the pump station but are open to all options. The property on which the facility is located is leased from Level 3 Communications, LLC. There is an amendment going to Mayor and Board next week that will approve the land use plan. Several attachments will be included with the addendum. They include Drawings, Lease Agreement, PRWSA, Ft. Detrick Agreement, as well as, the 2016 Combined Water Model Update Report shared between the County, City & Fort Detrick. Rodney Winebrenner, Frederick County Government Engineering & Planning: Rodney reminded potential proposers that flow rates are restricted and that the rates could only be increased with County approval. This is to ensure that the County s equipment is not adversely affected by this upgrade. 4

5 C. Questions ADDENDUM NO. 1 Previously Submitted Are you considering Ignition by Inductive Automation for the SCADA/HMI portion of the pump station project? The City uniformly uses CitectSCADA for its SCADA System/HMI software needs. This facility has an existing PLC based control panel consisting of an M340 PLC (12- slot rack) with local Magelis IPC (HMI) using CitectSCADA software. The City anticipates that the existing control panel, including the HMI, is capable of accommodating modifications identified as part of this project. 1. Who is the current manufacturer? The M340 PLC, Magelis HMI and Citect SCADA software is manufactured by Schneider Electric. The City has standardized with Schneider Electric. 2. Does the new equipment need to come from the same manufacturer? Yes, for any established items of uniformity, only those manufacturers will be accepted. 3. Will there be a site visit? Yes, we can go tour the facility today at the conclusion of this meeting. 4. On page 14 of the solicitation document it mentions electrical demolition. What type of Electrical demolition will be needed? We are unsure at this point. The generator may not be the correct size/voltage for the improvements to the facility. Other electrical modifications may need to be completed as well. For instance we have not sized pumps to see what electrical service will be needed. This will be the responsibility of the proposer. 5. The chemical station has been mentioned in the RFP. What else will be needed? 5 We don t know if anything new will be necessary. The City is currently using sodium hypochlorite (for disinfection), zinc orthophosphate (for corrosion

6 protection) and sodium hypochlorite (ph adjustment). There are three (3) chemical storage tanks and three (3) dosing pumps. Storage capacity and dosing rates will need to be evaluated considering the possible increase in flow capacity of the facility. 6. The three chemicals mentioned are currently inside the facility? Yes. 7. In the scope of work section of the proposal it mentions hydraulic modeling. Can you further explain this? A difference in hydraulic gradients exists between the City and County systems. The water distribution systems in this vicinity should be modeled to ensure that the systems are capable of properly functioning with the proposed improvements. The City can provide data from its GIS system regarding the City s distribution system. The 2016 Tri-Model Report will be provided. 8. In the RFP it mentions the distribution system. How much pipeline will be needed? Will it be major water mains or short connections? It should just be short tie-ins at the proposed new pump station. During design it will be required to evaluate back feeding the development off of Ballenger Center Drive through the discharge side of the pump station. This development would fall on the suction side of the proposed pump station. 9. It was mentioned that the property was on a lease. Will all surveys be covered by this lease or will additional surveys and permits be needed? Yes, all work will be done on the leased property and the land use is being updated. If there is a pipeline installed to back feed Ballenger Center Drive, easements may be needed. All applicable permits will be required. 10. Will any subsurface utility work be needed? 6 We will share existing as-builts to the interconnect facility. Everything should be confirmed and researched by the proposer.

7 11. In the RFP under the electrical design portion it mentions security. What type of security are you looking for? Facility intrusion alarms (exterior door switches, control panel access, etc.). The current service at the location will not support cameras. 12. Is there a Citywide (security) card system? No, not at this time. 13. Is there any additional communication needed for monitoring? Does it need to be updated & modified? No, the existing communications system does not need to be updated or modified. Currently we use a 900 MHz spread spectrum Ethernet radio manufactured by Phoenix Contact, which will accommodate any new data points for new equipment or processes. All new data points will need to be added so that everything is available for monitoring and control locally and remotely over the network to the main SCADA System servers. 14. How many borings, and what depths will be needed for new building? This is to be decided by the proposer. It is a small building so probably not too many. 15. Is the existing facility single level? Yes, it is a single level pre-manufactured building with a poured concrete base. 16. Is the facility in the 100 year flood zone? No. 17. Will we need VFDs? 7 Yes, the City anticipates that VFD s will be required for flow control.

8 18. Will lightning protection be needed? Yes. 19. Will the station be designed for 3MGD that s expandable to 4MGD? The hydraulics of the City/County water distribution systems will need to be evaluated for 4MGD capacity, findings will need to be provided in the basis for design report and reviewed with the County for their approval of the actual flow characteristics; however, 4 MGD pump capacity design will be a requirement for this project, to include evaluation/modification to the existing chemical dosing equipment as needed. 20. Page 30 in the RFP mentions an electrical power system study during both the design and construction stage. Normally a third party handles the second phase study. Please clarify. The City requires that the design engineer complete a preliminary power system study as part of the design so that arc-flash hazards can be identified and managed early and so that projected fault currents can be used for review and approval of submitted electrical service equipment with regard to interrupting ratings. The City also requires that the engineer finalize the power system study using the ratings and characteristics of actual equipment provided. 21. Do we need to resend these questions in writing? No, they have been captured. 22. In the solicitation document under section Design Phase II, there is no line item for optional engineering services such as Storm Water Management. Where should we enter that pricing? We will correct the form and include in the addendum. 8

9 D. Site Visit 315 Ballenger Center Drive Frederick, MD (Behind Roy Rogers) Please remember that no questions may be asked or answered during the site visit. They all must be submitted in writing. With no further questions, the meeting concluded at 10:32 a.m. 9