CERCLA removal action at Mojave NP, CA

Closed Solicitation Posted

This opportunity was awarded. See the award notice from .

Solicitation number
140P2126Q0049
Agency
National Park Service Department of the Interior
Responses due
Set-aside
Indian Small Business Economic Enterprise

Opportunity facts

NAICS code
562910 Remediation Services
PSC
F108 Environmental Systems Protection- Environmental Remediation
Points of contact

Notice details come from SAM.gov. Updated .

About this opportunity

The National Park Service is soliciting proposals for a Non-Time Critical Removal Action (NTCRA) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) to address contamination at the Hidden Hill Mine site located within Mojave National Preserve in California. The procurement requires contractors to excavate, transport, and dispose of approximately 150 tons of contaminated mine tailings and commingled soil, along with preparation of post-award plans including a Site Health and Safety Plan, Pollution Prevention Plan, Traffic Control Plan, Hazardous Material Spill Plan, and Sampling and Analysis Plan. Key qualifications include demonstrated relevant experience performing similar NTCRAs, an Environmental Professional licensed in California with 15 years of relevant experience, and qualified personnel serving as a Human Health Risk Assessor, Ecological Risk Assessor, and Regulatory Specialist, each with 15 years of specific expertise. Evaluation criteria focus on relevant experience, key personnel qualifications, proposed schedule, and past performance. The solicitation deadline is May 5, 2026, at 3:00 PM Pacific Time, with a mandatory group site visit scheduled for April 9, 2026, at 10:00 AM; responses must be submitted electronically as a single PDF to sarah_welch@nps.gov.

This procurement is set aside 100 percent for Indian Small Business Economic Enterprises (ISBEEs) under Department of the Interior Acquisition Regulation 1480, with a NAICS code of 562910 (Environmental Remediation Services) and a small business size standard of 1,000 employees. The estimated acquisition value is below $350,000, with the firm-fixed-price contract structure including base contract line items for contract support tasks, non-removal site activities, excavation and disposal of non-RCRA hazardous materials, and sampling, as well as optional line items for additional hazardous waste disposal and archeological monitoring. The contractor must commence work within 10 calendar days of receiving the notice to proceed and complete all work within 400 calendar days thereafter, with field mobilization scheduled no earlier than January 4, 2027, and field work targeted between November 30 and March 1 to avoid desert tortoise season. Performance and payment bonds are required within 10 calendar days of award. The work will be performed at the Hidden Hill Mine site within Mojave National Preserve in San Bernardino County, California, at an elevation of approximately 3,400 feet, on a site covering approximately five acres.

Notice text

2 versions

Update #2 · Latest ·

Amendment 1 transmits Attachment 3, Clarifications (4 pages), which augments the Statement of Work, Work Plan, and solicitation and includes a list of site visit attendees.

This acquisition is for a Non-Time Critical Removal Action (NTCRA) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) at the Hidden Hill Mine contaminated site within Mojave National Preserve (MOJA) in California. It is set-aside for Indian Small Business Economic Enterprises (ISBEEs) in accordance with Department of the Interior Acquisition Regulation (DIAR) 1480.

SITE VISIT: A group site visit is scheduled at 10:00 am on 4/9/26. Pertinent details are in Section L of the solicitation. Attendance at the site visit is strongly encouraged (not mandatory). Requests for individual site visits will not be honored.

DESCRIPTION: The site is a relatively small and remote abandoned mine located on approximately five acres and is at an elevation of approximately 3,400 feet above sea level. The work includes removing approximately 69 CY of comingled tailings and potentially affected underlying material (assuming a thickness of approximately one foot) that are distributed over an area of approximately 1,850 sf. Including any ancillary soils which may become commingled during excavation activities, approximately 100 CY (conservative estimate, includes underlying/commingling) are estimated for the purpose of this Removal Action. Applying a conversion factor of 1.5 tons per cubic yard, NPS estimates 150 tons of material will be excavated, transported, and disposed in the removal action (RA). The work also includes preparation of post-award plans (Site Health and Safety Plan (SHASP), Under-an-Acre Pollution Prevention Plan (UPPP), Traffic Control Plan (TCP), Hazardous Material Spill Plan (HMSP), and Confirmatory and Waste Sampling and Analysis Plan (SAP)), characterizing the material, transporting it to appropriate disposal facility/ies, collecting and analyzing confirmation samples, and preparing a Response Action Completion Report (RACR). The estimated removal quantities are based on previous site investigations. The firm fixed price contract will use a combination of lump sum and unit-priced items subject to the variation in quantity clause in conjunction with an established ceiling and notification requirements. Additional details will be provided in the documents to be posted with the solicitation. A payment bond (100%), performance bond (100%), and liability insurance will be required prior to contract performance.

PROJECT LOCATION: The Site is located on the southeast slope of the Providence Mountains in the southern portion of MOJA; geographic coordinates are 34.80613 degrees north latitude and 115.545029 degrees west longitude. Maps and information about the park are at www.nps.gov/MOJA.

DETAILS: This procurement will cite clauses and provisions from both the codified Federal Acquisition Regulation (FAR) and the Revolutionary Federal Acquisition Regulation Overhaul (RFO); RFO will be cited only for parts whose deviations have been adopted by the Department of the Interior. It will be conducted under FAR 13 procedures. The prime contractor shall not subcontract more than the subcontract limitations specified in RFO clause 52.219-14 to other than similarly situated concerns. For this purpose, work to be performed falls in the category ¿services.¿ The NAICS code for this project is 562910, Remediation and cleanup of contaminated buildings, mine sites, soil, or ground water, and the small business size standard is 1,000 employees. All work will be performed under a single firm-fixed-price contract subject to the Wage Rate Requirements (Construction), formerly known as the Davis-Bacon Act. The estimated magnitude of this project is below the Simplified Acquisition Threshold ($350,000).

The RFQ and future amendments will be posted in the Contracting Opportunities section of SAM (https://sam.gov/content/opportunities). Quotes will be due approximately 30 days after the RFQ is posted; specifically, they will be due by the date and time specified in Block 13 of the Standard Form 1442 or in the most recent amendment (SF30). Offerors will submit their quotes by email per instructions included in the solicitation. The government will consider each company¿s technical capability in comparison to its price and award to the firm whose quote represents the best value.

Prospective quoters must visit SAM.gov periodically to check for amendments and other changes to the contract documents; no other notifications will be sent nor will hard copies of the solicitation be mailed or issued. All eligible responsible sources may submit a quote which shall be considered by the National Park Service, however quoters who have not established and/or maintained an active registration at www.SAM.gov prior to the offer due date and time will be considered either ineligible or non-responsive and will not be considered for award.

It is the policy of the Government to provide maximum practicable opportunities in its acquisitions to small business, veteran-owned small business, service-disabled veteran-owned small business, HUBZone small business, small disadvantaged business, Indian Small Business Economic Enterprises, and women-owned small business concerns. Such concerns must also have the maximum practicable opportunity to participate as subcontractors in the contracts awarded by any executive agency, consistent with efficient contract performance. All quoters are strongly encouraged to contact their local Small Business Administration office, to post their need for qualified subcontractors on SUB-Net accessed at https://connect.sba.gov, and to utilize the Small Business Administration (SBA) Dynamic Small Business Search (https://dsbs.sba.gov/search/dsp_dsbs.cfm) for potential subcontractors within these various socio-economic categories.

The Government reserves the right to cancel this solicitation, either before or after the closing date. In the event the Government cancels this solicitation, the Government has no obligation to reimburse a quoter for any costs.

Construction Contract Administration: Revolutionary Federal Acquisition Regulation Overhaul (RFO) 36.101-4 requires agencies provide description of policies and procedures that apply to definitization of equitable adjustments for change orders under construction contracts and data on the time required to definitize equitable adjustments for change orders under construction contracts. This information can be found at: https://www.doi.gov/pam/acquisition/policy/constructioncontract.

For more information, contact the Contracting Officer at sarah_welch@nps.gov.

Update #1 ·

This acquisition is for a Non-Time Critical Removal Action (NTCRA) under the Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) at the Hidden Hill Mine contaminated site within Mojave National Preserve (MOJA) in California. It is set-aside for Indian Small Business Economic Enterprises (ISBEEs) in accordance with Department of the Interior Acquisition Regulation (DIAR) 1480.

SITE VISIT: A group site visit is scheduled at 10:00 am on 4/9/26. Pertinent details are in Section L of the solicitation. Attendance at the site visit is strongly encouraged (not mandatory). Requests for individual site visits will not be honored.

DESCRIPTION: The site is a relatively small and remote abandoned mine located on approximately five acres and is at an elevation of approximately 3,400 feet above sea level. The work includes removing approximately 69 CY of comingled tailings and potentially affected underlying material (assuming a thickness of approximately one foot) that are distributed over an area of approximately 1,850 sf. Including any ancillary soils which may become commingled during excavation activities, approximately 100 CY (conservative estimate, includes underlying/commingling) are estimated for the purpose of this Removal Action. Applying a conversion factor of 1.5 tons per cubic yard, NPS estimates 150 tons of material will be excavated, transported, and disposed in the removal action (RA). The work also includes preparation of post-award plans (Site Health and Safety Plan (SHASP), Under-an-Acre Pollution Prevention Plan (UPPP), Traffic Control Plan (TCP), Hazardous Material Spill Plan (HMSP), and Confirmatory and Waste Sampling and Analysis Plan (SAP)), characterizing the material, transporting it to appropriate disposal facility/ies, collecting and analyzing confirmation samples, and preparing a Response Action Completion Report (RACR). The estimated removal quantities are based on previous site investigations. The firm fixed price contract will use a combination of lump sum and unit-priced items subject to the variation in quantity clause in conjunction with an established ceiling and notification requirements. Additional details will be provided in the documents to be posted with the solicitation. A payment bond (100%), performance bond (100%), and liability insurance will be required prior to contract performance.

PROJECT LOCATION: The Site is located on the southeast slope of the Providence Mountains in the southern portion of MOJA; geographic coordinates are 34.80613 degrees north latitude and 115.545029 degrees west longitude. Maps and information about the park are at www.nps.gov/MOJA.

DETAILS: This procurement will cite clauses and provisions from both the codified Federal Acquisition Regulation (FAR) and the Revolutionary Federal Acquisition Regulation Overhaul (RFO); RFO will be cited only for parts whose deviations have been adopted by the Department of the Interior. It will be conducted under FAR 13 procedures. The prime contractor shall not subcontract more than the subcontract limitations specified in RFO clause 52.219-14 to other than similarly situated concerns. For this purpose, work to be performed falls in the category ¿services.¿ The NAICS code for this project is 562910, Remediation and cleanup of contaminated buildings, mine sites, soil, or ground water, and the small business size standard is 1,000 employees. All work will be performed under a single firm-fixed-price contract subject to the Wage Rate Requirements (Construction), formerly known as the Davis-Bacon Act. The estimated magnitude of this project is below the Simplified Acquisition Threshold ($350,000).

The RFQ and future amendments will be posted in the Contracting Opportunities section of SAM (https://sam.gov/content/opportunities). Quotes will be due approximately 30 days after the RFQ is posted; specifically, they will be due by the date and time specified in Block 13 of the Standard Form 1442 or in the most recent amendment (SF30). Offerors will submit their quotes by email per instructions included in the solicitation. The government will consider each company¿s technical capability in comparison to its price and award to the firm whose quote represents the best value.

Prospective quoters must visit SAM.gov periodically to check for amendments and other changes to the contract documents; no other notifications will be sent nor will hard copies of the solicitation be mailed or issued. All eligible responsible sources may submit a quote which shall be considered by the National Park Service, however quoters who have not established and/or maintained an active registration at www.SAM.gov prior to the offer due date and time will be considered either ineligible or non-responsive and will not be considered for award.

It is the policy of the Government to provide maximum practicable opportunities in its acquisitions to small business, veteran-owned small business, service-disabled veteran-owned small business, HUBZone small business, small disadvantaged business, Indian Small Business Economic Enterprises, and women-owned small business concerns. Such concerns must also have the maximum practicable opportunity to participate as subcontractors in the contracts awarded by any executive agency, consistent with efficient contract performance. All quoters are strongly encouraged to contact their local Small Business Administration office, to post their need for qualified subcontractors on SUB-Net accessed at https://connect.sba.gov, and to utilize the Small Business Administration (SBA) Dynamic Small Business Search (https://dsbs.sba.gov/search/dsp_dsbs.cfm) for potential subcontractors within these various socio-economic categories.

The Government reserves the right to cancel this solicitation, either before or after the closing date. In the event the Government cancels this solicitation, the Government has no obligation to reimburse a quoter for any costs.

Construction Contract Administration: Revolutionary Federal Acquisition Regulation Overhaul (RFO) 36.101-4 requires agencies provide description of policies and procedures that apply to definitization of equitable adjustments for change orders under construction contracts and data on the time required to definitize equitable adjustments for change orders under construction contracts. This information can be found at: https://www.doi.gov/pam/acquisition/policy/constructioncontract.

For more information, contact the Contracting Officer at sarah_welch@nps.gov.

Attachments

Files attached to this notice, newest first
File Type Posted
Sol_140P2126Q0049_Amd_0001.pdf PDF
Attachment_5_Clarifications_1_-_4_0001.pdf PDF
Attachment_3_MOJA_Hidden_Hill_mine_EECA_3-7-17.pdf PDF
RFQ_Form_7_-_Relevant_Experience.docx DOCX document
Attachment_2_MOJA_Hidden_Hills_NTCRAWP.pdf PDF
Sol_140P2126Q0049.pdf PDF
RFQ_Form_8_-_General_References.docx DOCX document
RFQ_Forms_2_through_5_-140P2126Q0049.xlsx XLSX spreadsheet
RFQ_Form_6_-_FAR_representations.docx DOCX document
Attachment_4_Wage_Determination_CA20260026_1-23-26.pdf PDF
Attachment_1_Statement_of_Work__Hidden_Hill_Mine_NTCRA.pdf PDF
Show all 11

Notice history

Notices posted for this opportunity, newest first
Notice Type Posted
CERCLA removal action at Mojave NP Award Award Notice
CERCLA removal action at Mojave NP, CA This notice · Latest solicitation Solicitation
CERCLA removal action at Mojave NP Original Pre-Solicitation

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