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This Government Contract opportunity from Department Of The Interior was posted on May 8, 2026. The submission period has ended. Browse the details below for market research, or find similar active opportunities.

pH Sensor Calibration and Monitoring

Closed
Federal

Contract Overview

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The contract is for monthly calibration and verification of pH sensors to maintain precise chemical balance in the wash water recycling process, ensuring operational efficiency and environmental compliance. This service is critical for sustaining optimal water quality throughout the recycling system and must be performed consistently according to specified technical standards. The work is structured as a subcontract under a Total Small Business Set-Aside, designated for small businesses as defined by the SBA, and falls under NAICS code 541380, which covers other scientific and technical consulting services. The opportunity was posted on May 8, 2026, with a response deadline of May 23, 2026, and is administered by the Lower Colorado Regional Office of the Department of the Interior. While specific performance location and point of contact details are not provided, the contract is accessible through the SAM.gov portal and requires proposals to meet all technical and compliance requirements for small business eligibility and sensor calibration protocols.

General Info

Monthly pH sensor calibration subcontract for water recycling, small business set-aside, response by May 23, 2026.

NAICS

541380 - Testing Laboratories and Services

Place of Performance

NV

Set-Aside

SBA

Documents

This scope was carved out of 140R3026Q0006 .

The full solicitation package (11 documents), including the RFP, is on the prime solicitation, not on this scope.

View the prime solicitation

H--WASH RACK MAINTENANCE Base Year and 4 Option Years

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Timeline

PhaseClosed
Posted

subcontract

Response Deadline

Deadline has passed

Submission Closed

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Organization & Contact Information

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AgencyDepartment Of The Interior → Lower Colorado Regional Office
ContactsNo contacts available
OfficeN/A
Office AddressN/A
ContactsNo contact information available

Full Description

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Monthly calibration and verification of pH sensors to ensure accurate chemical balance in the wash water recycling process.

More opportunities from Department Of The Interior → Lower Colorado Regional Office

Same awarding agency

NAICS: 237990
Federal
Z--CABLEWAY CRANE REFURBISHMENT
Solicitation # 140R3026R0010
Solicitation 140R3026R0010 is a full and open competition request for proposals issued by the Department of the Interior, Bureau of Reclamation, for the refurbishment of the 150-ton cableway crane at Hoover Dam. This firm-fixed-price contract, estimated between 5 million and 10 million dollars, involves a comprehensive scope of work including the replacement of track and button line cables, refurbishment of the carriage, installation of a slack carrier, replacement of sheaves, and updates to the hydraulic hand pump and lines. The project concludes with mandatory load testing and annual inspection certification. The performance period is 850 calendar days, with a scheduled window from September 30, 2026, to December 29, 2028, requiring work to commence within 10 days of the Notice to Proceed. The award will be based on a best-value negotiation under FAR Part 15, where technical factors—specifically relevant experience, technical capability, past performance, safety plans, and small business participation—are significantly more important than price. Contractors must be registered in the System for Award Management and provide a Unique Entity Identifier. Required submissions include a bid bond, as well as performance and payment bonds upon award. Labor must comply with prevailing wage determinations for Mohave County, Arizona, and Clark County, Nevada. Proposals must be submitted in separate volumes, including a business proposal and a price proposal, with a strict 50-page limit on the technical volume. Payment will be processed electronically through the Treasury's Invoice Processing Platform System.
Other Heavy and Civil Engineering Construction

POSTED

3 months ago

DEADLINE

in about 2 months
View Details

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