Unofficial Notice of Invitation to Bid (NIB)

Merced City is seeking bids from qualified and interested contractors for the following project titled, Groundwater Monitoring Well & Municipal Well Sampling Services, identified under Solicitation ID: -. Work is to be performed near 678 W 18th St, Merced, CA 95340, USA in Merced County.

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General Project Description

The City of Merced is soliciting qualifications from environmental consulting firms to perform comprehensive groundwater monitoring and sampling services. The project involves semi-annual groundwater sounding and sampling at approximately 42 PCE (Tetrachloroethylene) monitoring wells located at five former dry cleaner facilities over ten quarters (2.5 years), and quarterly sampling and sounding of 11 municipal well sites for PCE and MTBE (Methyl tert-butyl ether) groundwater investigations over five years. Key tasks include providing traffic control, performing routine well box maintenance and repair, managing and disposing of well purge/decontamination water at the City's Wastewater Treatment Plant, coordinating with laboratories for sample analysis (EPA Method 8260B), and maintaining detailed groundwater monitoring, purging, and Chain-of-Custody records according to standard environmental practice and Merced County Division of Environmental Health guidelines. The consultant must be a licensed individual for geologic/groundwater investigations and comply with California Labor Code for prevailing wages.

General Bid Items

Quantity: 10 Unit: QUARTERS Work Item: Quarterly sounding/sampling of PCE project monitoring wells (approximately 42 wells).
Quantity: 10 Unit: QUARTERS Work Item: Provision of traffic control services at each PCE sampling site, Specifications: In general conformance to "California Manual on Uniform Traffic Control Devices" (CA MUTCD, latest edition), including initial traffic control plan and encroachment permit.
Quantity: 10 Unit: QUARTERS Work Item: Routine well box maintenance and repair, Specifications: Performed on a time and materials basis, assuming $3,000 per year for well lids, grout/asphalt/cement repair, and stripped threads.
Quantity: 5 Unit: YEARS Work Item: Quarterly sounding/sampling of municipal well sites' monitoring wells (11 wells total).
Quantity: As needed Unit: - Work Item: Completion and maintenance of groundwater monitoring well purging and sampling records, Specifications: In accordance with standard environmental practice; PDF scanned copies submitted via email within two weeks after field event, originals within one month.
Quantity: As needed Unit: - Work Item: Completion and maintenance of municipal well sampling Chain-of-Custody (COC) documentation, Specifications: In accordance with standard environmental practice; PDF scanned copies submitted via email within two weeks after field event, originals within one month.
Quantity: As needed Unit: - Work Item: Coordination of container/sample transport to/pick up by laboratory, Specifications: Lab provides containers, Consultant picks up/drops off from WQCD office.
Quantity: As needed Unit: - Work Item: Sample analysis by laboratory, Specifications: EPA Method 8260B, including hexavalent analysis for the Parkway PCE site.
Quantity: As needed Unit: - Work Item: Transport and disposal of well purge/decontamination water, Specifications: Disposed at City of Merced WWTP headworks at no cost; containerized in watertight, non-leaking holding tank(s).
Quantity: As needed Unit: - Work Item: Sounding of wells for total depth, Specifications: PCE site monitoring wells at least once per year.
Quantity: As needed Unit: - Work Item: Well purging and sampling activities, Specifications: Conformance to Merced County Division of Environmental Health “Minimum Monitoring Well Sampling Requirements, September 2002,” with modifications including Oxidation-Reduction Potential (ORP, mV) and Dissolved Oxygen (DO, mg/L) measurements for Parkway PCE wells.
Quantity: As needed Unit: - Work Item: Equipment decontamination, Specifications: Final rinse with distilled water procured from off-site, non-Merced municipal water source.
Quantity: As needed Unit: - Work Item: Submission of certification letters by responsible licensed individual, Specifications: Submitted to the City within two weeks following the calendar quarter of completed work, professional seal/stamp required.

NAICS Classification

NAICS 541620 – Environmental Consulting Services (Performing groundwater monitoring, sampling, analysis coordination, data management, regulatory reporting assistance, and traffic control planning for environmental projects)., NAICS 541330 – Engineering Services (Oversight and certification by an appropriately licensed individual for geologic/groundwater investigations, as required by California Business and Professions Code)., NAICS 562910 – Remediation Services (Disposal of contaminated purge water, and maintenance/repair of monitoring well boxes and infrastructure related to environmental sites).

Records and Due Date

This bid opportunity was entered into BidAmerica on February 16, 2026, and was last updated on February 16, 2026. All bids and/or proposals are due on March 2, 2026.

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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 Merced 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 Merced City prior to bidding.