Unofficial Notice of Invitation to Bid (NIB)

Ukiah City is seeking bids from qualified and interested contractors for the following project titled, Remediation System Decommissioning, Site Restoration and Environmental Well Abandonment, identified under Solicitation ID: 25-06. Work is to be performed near 1320 Airport Rd, Ukiah, CA 95482, USA in Mendocino County.

Create a Free account to view ALL details and documentsNo credit card required

General Project Description

The project involves the deconstruction and removal of a soil and groundwater remediation system, comprehensive site restoration activities, and the abandonment of twenty-three (23) monitoring wells and twenty-eight (28) remediation wells within the City of Ukiah. The scope includes site preparation, mobilization, disassembly, removal, and disposal of remediation system equipment, saw cutting of existing paving, removal and disposal of concrete curb and slabs, asphalt concrete repaving, force main connection abandonment, removal and disposal of steel bollards, removal and restoration of monitoring well boxes and junction boxes, backfilling with CDF or aggregate base, and well abandonment for both monitoring and remediation wells, including cement grout backfill. The contractor is also responsible for agency fees, permits, and inspections.

General Bid Items

Quantity: 1 Unit: LS Work Item: Site Preparation, Mobilization and Demobilization
Quantity: 1 Unit: LS Work Item: Remediation System Disassembly, Removal, and Disposal
Quantity: 120 Unit: Linear Foot Work Item: Sawcut Existing Paving – Equipment Compound Perimeter
Quantity: 120 Unit: Linear Foot Work Item: Remove, Haul, and Dispose of 6" Concrete Curb Around Equipment Compound
Quantity: 650 Unit: Square Foot Work Item: Remove, Haul, and Dispose Concrete Slab (6" Thickness) at Equipment Compound - Includes Removal and Backfill of Grated Sump with CDF
Quantity: 650 Unit: Square Foot Work Item: Asphalt Concrete Repaving – Equipment Compound Footprint
Quantity: 1 Unit: LS Work Item: Abandon Force Main Discharge Connection
Quantity: 7 Unit: Each Work Item: Remove, Haul, and Dispose of Removable Steel Bollards - Backfill with CDF to 6" Minus and Repave to Match Existing Conditions
Quantity: 23 Unit: Each Work Item: Monitoring Well Box Removal and Restoration
Quantity: 376 Unit: Linear Foot Work Item: Sawcut Existing Asphalt Paving and/or Concrete at Remediation Well Boxes and Junction Boxes
Quantity: 30 Unit: Each Work Item: Remove, Haul, and Dispose of Remediation Well Box and Junction Box, Remove Concrete Collar, and Cut & Cap Conduit
Quantity: 7.5 Unit: Cubic Yards Work Item: Backfill Remediation Well Boxes and Junction Boxes With CDF to 4" Minus
Quantity: 390 Unit: Square Foot Work Item: Replace Asphalt Concrete at Remediation Well Box and Junction Box Locations
Quantity: 2.5 Unit: Cubic Yards Work Item: Backfill Remediation Well Boxes with Class II Aggregate Base to Final Grade
Quantity: 1 Unit: LS Work Item: Agency Fees, Including Permits and Inspections
Quantity: 620 Unit: Vertical Foot Work Item: Well Abandonment - Monitoring Well Abandonment
Quantity: 612 Unit: Vertical Foot Work Item: Well Abandonment - Remediation Well Abandonment
Quantity: 1232 Unit: Vertical Foot Work Item: Well Abandonment - Cement Grout Well Backfill - Materials Only

NAICS Classification

NAICS 237110 – Water and Sewer Line and Related Structures Construction, NAICS 237990 – Other Heavy and Civil Engineering Construction, NAICS 238910 – Site Preparation Contractors, NAICS 562910 – Remediation Services, NAICS 237310 – Highway, Street, and Bridge Construction

Records and Due Date

This bid opportunity was entered into BidAmerica on December 9, 2025, and was last updated on January 9, 2026. All bids and/or proposals are due on January 13, 2026.

Contractors may log in or create a free BidAmerica account to view full project documents, plans, specifications, addenda, submission requirements, and more project details issued by Ukiah City.

Legal Disclaimer

All bidders are responsible for reviewing and verifying all official bid documentation directly from the issuing agency. BidAmerica aggregates public bid information for advertisement purposes for contractors and government agencies convenience. This Notice of Invitation to Bid is for reference purposes only and is not an official or complete representation of any documents issued by Ukiah City. BidAmerica does not guarantee the accuracy, completeness, or timeliness of any information displayed and shall not be held liable for any errors, omissions, misinterpretations, or damages resulting from reliance on this summary. Contractors must obtain all official information—including plans, specifications, addenda, deadlines, submission requirements, qualifications, and bidding conditions—directly from Ukiah City prior to bidding.