20262021 A2 Addendum 1.pdf
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- Attached to
- ITB 20262021 Dedicated RNG Flare Installation
- Solicitation number
- S-KE0010-00015203
- Issued by
- Lane County, Oregon
About this file
This addendum document pertains to ITB 20262021 for the City of Eugene's Wastewater Division in Oregon and provides modifications to the original solicitation for a Dedicated RNG Flare Installation project at the River Avenue Wastewater Treatment Plant. The project involves the installation of a Shand and Jurs flare and control system along with a Harris Thermal stainless-steel tank to be integrated into the existing off-spec gas piping system. The primary objective is to provide a dedicated off-spec gas flare for the RNG plant while returning two existing flares to serve only the anaerobic digesters. A mandatory pre-bid conference was held on October 30th at 9:00 AM, with sealed bids due on November 20th at 2:30 PM through OregonBuys. The contract is anticipated to start in January 2025 with an initial two-year term and potential for up to three additional one-year renewals. The project specifications indicate a complex installation involving civil, structural, mechanical, electrical, and instrumentation work, featuring a candle-stick type waste gas burner with a capacity of 20 MMBTU/hr and a stainless-steel off-spec gas storage vessel with 340 cubic feet capacity.
Bidders are required to submit a 5% bid security and comply with prevailing wage rates, employee drug testing program certification, and local and state regulations. The City of Eugene's evaluation criteria emphasize responsiveness, compliance with specifications, sustainability, social equity, and local business participation, with potential preference given to local and disadvantaged business enterprises. The procurement is open to all qualified contractors. Technical specifications and comprehensive project documentation, including detailed engineering drawings and a project manual prepared by Kennedy/Jenks Consultants, have been provided. No specific budget range or incumbent vendor has been identified in the solicitation materials, though the technical complexity and scope suggest a significant capital investment in municipal renewable energy infrastructure.
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Text version
Public Works
Wastewater Division
Date: 11/14/2025 To: All Potential Bidders From: Michael Wilson, Purchasing Analyst Subject: ITB 20262021, Dedicated RNG Flare Installation
ADDENDUM NO. 1
The solicitation referenced above is amended as follows.
1) Prevailing Wage Rates (Date amended in red) This solicitation is for a public works project which is subject to ORS 279C.800 to 279C.870. All bidders are required to consult the BOLI publication for Prevailing Wage Rates for Public Works Contracts in Oregon Subject to State PWR Law and all subsequent amendments. The rates in effect shall be as in BOLI publication dated October 5, 2025. The documents can be accessed at https://www.oregon.gov/boli/employers/Pages/prevailing-wage-rates.aspx.
2) Answer questions received during the mandatory pre-bid conference held on 10/30/2025
1. Fencing perimeter of area, on contractor?
a. Yes
2. Will locates be done prior to determining the tanks install location.
a. Yes, locates to be done prior. Contractors will be responsible for Oregon 811 Utility
Notification center before any excavation.
3. Will we tie into the existing blind flange for burner piping?
a. Yes.
4. Is Off Spec gas piping black pipe and not stainless steel?
a. Yes, OSG Piping is pipe type BS40 – black steel.
5. Will we be saving the shed or demo?
a. Demo shed.
6. Will the pipe insulation be on the contractor?
a. Yes, OSG piping is to be insulated.
7. Installation of piping for tank clarification.
a. Clarification that the tank was basically a wide spot in the line for volume, not to force any directional flows.
8. Were there any other items the City has procured beyond the Tank, Flare and controls?
a. No additional items have been purchased by the City.
9. Is there a project estimate?
a. The project estimate will not be disclosed prior to bid closing
10. Is there an estimated completion date?
a. Depending on when notice to proceed goes out we would like to have the project completed mid-May.
https://www.oregon.gov/boli/employers/Pages/prevailing-wage-rates.aspx
3) Answer questions from potential Bidders received via email.
1). Does the above project currently have an estimated value or completion date?
a. Estimated value of the project will not be disclosed prior to closing, estimated completion date of 126 calendar days or 87 working days from notice to proceed.
2). Can you please tell me if there is an Engineer’s Estimate for this project? And if so, what it is?
a. Engineers estimate will not be disclosed prior to closing.
3). Looking through the bid documents, we found that the bid tab page has us listing the lump sum price for the entire job. Then looking through OregonBuys, we found what looked like the bid submission tool listing separate bid items. Can you please advise on how CoE would like bid amounts to be submitted on bid day?
a. Please submit bids as lump sum per standard bid form.
4) What costs for 3rd party testing and special inspections will be the responsibility of the contractor?
a. City will pay for third party testing. Contractor will be responsible for coordinating all necessary testing.
5) Who will be responsible for paying permit fees? Is a building permit anticipated for this project?
a. The City is responsible for the permit. The permit application is already in process.
6) Ref dwg C-102 Detail 1: What is the thickness of the concrete foundation under the wooden building?
a. No plans were drawn up for this structure but plan for a 6” slab foundation.
7) Ref dwg C-301: What type of pipe is the 4” drainpipe that is being installed between gridlines B and C from lines 1.5 to 4?
a. PVC-6.
8) Ref spec 11602 2.01 C: Size of the anchor bolts shall be based on seismic calculations prepared by the Contractor. Is Contractor required to provide Professional Engineer stamped calculations for anchor bolt size?
a. Yes, see Specifications 01190 and 05090.
9) Ref Invitation to Bid, VI. Forms to Submit with Bid: There appears to be multiple bid items on the OregonBuys bid submission tool. However, the Bid Tabulation on ITB page 17 lists a single lump sum bid item for the project. Please confirm if the bid should be lump sum, or if there will be multiple bid items?
a. Please submit bids as lump sum per standard bid form.
10) Ref Invitation to Bid, IV. Anticipated Bidding Schedule: On page 13 of ITB the activity of “Last date to request solicitation clarification or change” is listed as November 12, 2025. Will this be the last day for prebid questions?
a. Yes, November 12th, is the last day for prebid questions. Questions received after this date will not be addressed.
11) Ref dwg E-004 Detail E-0205: Where is this duct bank detail required on the project?
a. The ductbank is intended to protect buried conduit installed between the existing flares and the proposed flare, as well as the conduit between the proposed flare and the RTO control panel.
12) Ref dwg E-004 Enlarged Plan 3: Are new conduits 0266 and 0134 shown at existing concrete surrounding waste gas burners surface mounted/exposed routing, or is the intent to cut concrete and trench them in? Is the intent for conduits 0266 and 0134 to be buried in the area between waste gas burners and new flare control panel?
a. Conduits may be surface mounted on concrete and then transition to buried duct bank installation outside of concrete areas.
*Pre-bid Attendance Sheet is attached to this addendum.
All other specifications, terms and conditions remain unchanged.
| 20262021_A2_Addendum 1_Final Draft |
| Attendance Sheet_10_30_25 |
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