Crystal Sheehan is a Senior Contract Services Officer. Crystal is associated with 14 contracts. Activity spans Highway, Street, and Bridge Construction, Other Heavy and Civil Engineering Construction, and Water and Sewer Line and Related Structures Construction.
Person Profile
Contracting officer information and contact details
The County of Sacramento Department of Waste Management and Recycling is soliciting sealed bids from Class A General Engineering Contractors for the Kiefer Landfill Module 5, Phase 1 Liner Construction. This project involves the installation of a multi-layered base liner system, including a two-foot soil operations layer, nonwoven geotextiles, LCRS gravel, and two layers of 60-mil HDPE double-sided textured geomembrane separated by secondary geocomposites and Geosynthetic Clay Liners. The scope of work further encompasses earthwork for soil excavation and stockpiling, construction of leachate collection and removal systems, side slope riser piping, stormwater components, surface water drainage structures, and the extension of the perimeter access road and various utility alignments.
The estimated construction cost for the project is 29,000,000 dollars, which includes a 500,000 dollar incentive for early completion by March 15, 2028. The contract duration is 350 working days. Bids must be submitted electronically via the Sacramento County Electronic Bidding Portal by November 5, 2026, at 2:00 pm. Award will be granted to the lowest qualified, responsive, and responsible bidder, with responsiveness contingent upon the inclusion of all required lump sum and unit prices.
Contractors are required to provide bid security of at least 10 percent of the aggregate bid sum and must execute performance and payment bonds for 100 percent of the contract price upon award. Compliance with prevailing wage rates, CAL-OSHA regulations, and federal non-discrimination statutes is mandatory. All work must adhere to strict technical specifications and is subject to oversight by the Design Engineer and a Construction Quality Assurance Consultant, with specific requirements for material handling, storage, and welding certifications for pipe installation.
The County of Sacramento, Department of Waste Management and Recycling, is soliciting sealed bids for the construction of the Module 5, Phase 1 base liner system at the Kiefer Landfill in Sloughhouse, California. This project, with an estimated construction cost of 29 million dollars, involves the development of approximately 24 acres. The scope of work includes site preparation, excavation, stockpiling of soils, and the installation of a geosynthetic liner system and leachate collection and removal system. Additionally, the contractor will install electrical power supplies, pumps, control panels, leachate force mains, landfill gas headers, and condensate sumps, concluding with the placement of a soil operation layer and erosion control via hydroseeding.
The contract will be awarded to the lowest qualified, responsive, and responsible bidder, with a performance period of 350 working days. Bidders must be prequalified using the DIR questionnaire and provide bid security of at least 10 percent of the aggregate bid sum. The successful contractor is required to provide performance and payment bonds for 100 percent of the contract price and adhere to prevailing wage requirements. Technical specifications cover general requirements, sitework, concrete, mechanical, and electrical divisions, with strict adherence to ASTM standards for geosynthetic clay liners. Bids must be submitted electronically via the Sacramento County Electronic Bidding Portal by October 29, 2026, at 2:00 PM.
The Sacramento County Water Agency is soliciting bids for the Vineyard Surface Water Treatment Plant Filter Repair project, identified as Contract No. 41020. The project involves the comprehensive repair of Filter #7, including the removal of existing anthracite and spent silica sand, internal joint repairs between the filter walls and floor, and the procurement and installation of 1,024 cubic feet of new silica sand media. The work must be completed within 40 working days and adhere to the Sacramento County Standard Construction Specifications, ANSI/AWWA B100, and ANSI/NSF Standard 61. The estimated construction cost is 100,000 dollars, and the award will be based on the lowest responsive base bid.
Eligible bidders must possess a Class A contractor license and provide a bid security of at least 10 percent of the aggregate bid sum. The successful contractor is required to provide performance and payment bonds for 100 percent of the contract price and ensure all workers are paid prevailing wages per California Labor Code. Key operational requirements include maintaining confined space certifications and adhering to OSHA regulations for basin entry. Bids must be submitted electronically via the Sacramento County Electronic Bidding Portal by September 24, 2026, at 2:00 PM.
CaliforniaCA,
USA$100Kest.
NAICS
237110
Water and Sewer Line and Related Structures Construction
Solicitation 4711 is for the construction of the Module 5, Phase 1 Base Liner System at the Kiefer Landfill in Sloughhouse, California, issued by the County of Sacramento Department of Waste Management and Recycling. The project involves installing a multi-layer base liner system across approximately 24 acres, utilizing HDPE geomembranes, geosynthetic clay liners, and geotextiles, alongside a side slope containment system. The scope also includes the installation of utility alignments for electrical power, landfill gas header pipes, leachate force mains, and condensate and pneumatic pressure pipes. The estimated construction cost is 29 million dollars, which includes a 500,000 dollar bonus for early completion by March 15, 2028.
The contract is a unit price agreement with a performance period of 350 working days, subject to liquidated damages of 10,000 dollars per calendar day for delays. Bids are due by October 8, 2026, at 2:00 pm via the Sacramento County Electronic Bidding Portal. Award will be granted to the lowest qualified, responsive, and responsible bidder, with prequalification conducted via the DIR questionnaire. Requirements include a bid bond of at least 10 percent of the bid sum, and the successful contractor must provide performance and payment bonds for 100 percent of the contract price. All work must adhere to strict Construction Quality Assurance plans and prevailing wage requirements.
The County of Sacramento, Department of Waste Management and Recycling, is soliciting bids for Contract 41019 to replace a deteriorating 6-inch HDPE outlet pipe at the Kiefer Landfill Groundwater Treatment Plant in Sloughhouse, California. The scope of work includes the installation of approximately 1,132 feet of new 8-inch HDPE piping, connecting it to existing 12-inch PVC piping at South Deer Creek. The project requires the installation of a new air relief valve, new culvert pipes at two road crossing locations, and subsequent repair of the access road. Additional tasks include excavation, trenching, backfilling, selective demolition of existing piping, and site cleanup. The estimated construction cost is 120,000 dollars, and the work must be completed within 45 working days.
Bids must be submitted electronically via the SacCountyEbids portal by 2:00 PM on September 24, 2026. The award will be based on the base bid only. Requirements for bidders include a bid security of at least 10 percent of the aggregate bid sum, a signed non-collusion declaration, and the ability to provide 100 percent performance and payment bonds upon award. The successful contractor must adhere to California prevailing wage laws and CAL-OSHA regulations, including the provision of independent sanitary facilities for all personnel. All work must comply with the November 2024 County of Sacramento Standard Construction Specifications and specific technical standards such as AWWA and ASTM. Final payment is contingent upon the submission of project record documents and the approval of quantities by the County.
CaliforniaSloughhouse,
CA,
95683,
USA$120Kest.
NAICS
237110
Water and Sewer Line and Related Structures Construction
The County of Sacramento Department of Waste Management and Recycling is soliciting sealed electronic bids for the Kiefer Boulevard Shoulder Widening project, identified as Contract 41017. The project involves the construction of a 14-foot wide aggregate base shoulder along the southern side of Kiefer Boulevard near the Kiefer Landfill entrance. The scope of work includes excavation, grading, the placement of Class 2 aggregate base, and the relocation of one road sign. The estimated construction cost is 205,000 dollars, and the project must be completed within 30 working days. All work must strictly conform to the 2024 Sacramento County Standard Construction Specifications, the 2025 Caltrans Standard Specifications, and ADA requirements.
Bids are due electronically by September 17, 2026, at 2:00 pm, with the award based on the lowest responsive bid of a responsible bidder using the base bid only. Eligible bidders must possess a Class A General Engineering Contractor license and be registered with the California Department of Industrial Relations. Required security includes a bid bond of at least 10 percent of the bid, with the successful contractor required to provide performance and payment bonds for 100 percent of the contract price. The project includes specific technical requirements for asphalt density testing and non-destructive removal of construction markings in compliance with NPDES and Regional Water Quality Control Board standards.
The Freeport Bridge Deck Repair project, solicitation number 20260805010 (Contract 4702R2), is a construction effort managed by the County of Sacramento Department of Transportation. The project involves providing all labor, materials, and equipment to perform critical repairs on the Freeport Bridge over the Sacramento River. Key technical requirements include bridge painting, repairing broken welds and bolts in the superstructure, fixing loose joint armor, and retrofitting the pin and roller system. The scope specifically includes the removal of joint armor plates over Pier 5 and Abutment 6, as well as the replacement of steel pins and rollers in the main bascule span. All structural steel must conform to ASTM Specification A709, Grade 50, and fabrication must be conducted at an AISC certified plant.
The contract is governed by the 2024 Sacramento County Standard Construction Specifications and the 2025 California Department of Transportation Standard Specifications. The estimated construction cost is 480,000 dollars, with the award based on the lowest responsive and responsible base bid. Bidders must provide a bid security of at least 10 percent of the bid amount and, if successful, execute performance and payment bonds for 100 percent of the contract price. Required deliverables include a bridge removal plan, a water pollution control plan, a lead compliance plan, and a baseline schedule. Performance is proposed to take place between November 1, 2026, and November 30, 2026. Contractors must adhere to California prevailing wage laws and provide proof of specific SSPC-QP certifications.
The County of Sacramento Department of Waste Management and Recycling is soliciting sealed bids for Contract 4688, the Kiefer Landfill MPA and Pavement Repairs project. The scope of work involves providing all labor, materials, and equipment to repair failed sections of the Upper and Lower Multipurpose Areas, apply microsurfacing to the landfill entrance, remove and apply new striping to designated roadways, and repair utility boxes and manholes along the on-site perimeter road. The estimated construction cost for the project is 400,000 dollars, and the work must be completed within 70 calendar days. Bidders are required to hold a Class A contractor license and must submit electronic bids via the Sacramento County bidding portal by September 10, 2026, at 2:00 pm.
The contract will be awarded to the lowest qualified, responsive, and responsible bidder. Compliance requirements include adherence to the Sacramento County Standard Construction Specifications dated November 1, 2024, prevailing wage mandates, and federal-aid construction provisions under Form FHWA-1273, including Title VI non-discrimination assurances. Prior to the start of work, the contractor must submit a construction plan and schedule, a site-specific health and safety plan, a water pollution control plan, and a traffic control plan to ensure operations do not impede landfill traffic. Final payment is contingent upon the submission of accurate as-built record documents to the County Engineer.
The contract solicitation for Freeport Bridge Deck Repair-Rebid 2, identified by solicitation number 4702R2, is issued by the California Transportation Agency based in Sacramento and seeks qualified contractors to perform comprehensive bridge deck repair work in strict compliance with applicable state and federal standards. The scope encompasses furnishing all labor, materials, equipment, and incidental work necessary to complete the project as detailed in the referenced specifications, with actual quantities subject to variation at the County’s discretion. Work must adhere to California DOT Revised Standard Specifications, SSPC-QP classifications for coating application, ASTM and EPA standards for materials and hazardous waste handling, and Title 8 CCR requirements for worker safety. The project site is located in California, and all performance must occur within state jurisdiction with no utilities or infrastructure support provided by the County, placing full responsibility on the contractor for water, electricity, and site logistics.
The contract requires stringent compliance with labor standards, including Davis-Bacon Act prevailing wage rates and mandatory submission of certified weekly payrolls using Form WH-347 with valid electronic signatures, retained for three years. Contractors must be registered in SAM.gov and provide valid UEI and CAGE codes, while also confirming they are not debarred or suspended. Key submittals prior to work commencement include a Water Pollution Control Plan, Lead Compliance Plan, Baseline Schedule, Traffic Control Plan, and proof of $4 million general liability insurance. Subcontracting requires prior written approval, and the prime contractor remains fully liable for all regulatory and contractual obligations. Proposals must be submitted electronically via the SacCountyEbids portal by August 25, 2026, at 2:00 PM PDT, with hand delivery, email, fax, or postal mail prohibited. No formal contract value is specified, pricing is to be submitted via a BMP Schedule of Values, and the evaluation basis for award is not outlined in the provided documentation. All work must comply with EEO requirements, maintain clean and presentable job sites, and prohibit equipment parking near oak tree driplines, reflecting a high level of environmental and operational control.
The Kiefer Landfill, operational since 1967, actively manages landfill gas through a network of approximately 350 extraction wells, with system performance dynamically adjusted based on daily waste placement. To comply with evolving environmental regulations and accommodate ongoing landfill expansion, a structured program is in place to replace underperforming wells and install new ones quarterly, with an average of eight new wells installed and ten decommissioned each quarter. This cyclical approach ensures continuous regulatory compliance and optimal gas capture efficiency while supporting the landfill’s long-term operational integrity. The initiative is designed for rapid, predictable field execution to maintain consistent gas management capabilities.
A solicitation titled Quarterly LFG Well Installation Services, 2026, with reference number 4699, was issued on June 18, 2026, and is open for responses until July 23, 2026, by the California Waste Management and Recycling agency headquartered in Sacramento. The project requires contractors to execute well installation and decommissioning activities on a strict quarterly schedule to meet environmental mandates. Primary point of contact is John Jowers, Associate Engineer, with Crystal Sheehan, Senior Contract Services Officer, also available for inquiries. The work must be performed in California, with all services aligned to the operational timelines and technical requirements of the Kiefer Landfill.
