Attach_A_-_Table_1_KLF_Base_Liner_Summary.pdf
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- Solicitation number
- 2026-PURB RFP-0063
- Issued by
- Sacramento County, San Francisco City, California
About this file
This file is an as-built documentation summary table prepared by the County of Sacramento, Department of Waste Management & Recycling (DWMR) for the Kiefer Landfill (KLF) base liner system components. The document provides a comprehensive inventory of liner system specifications across multiple construction modules and phases, detailing the materials, contractors, installers, and construction dates for eleven separate liner installations spanning from November 1993 through February 2024. Each module entry specifies the general contractor, liner installer, construction quality assurance (CQA) firm, total acreage covered, and a detailed breakdown of the layered liner system components including operations layers, geotextile filters, drainage layers, geomembranes, geosynthetic clay liners, and leak detection systems. The early modules (M1L Phases 1-4, constructed 1993-1998) utilized primarily single-sided textured 60 mil HDPE geomembranes with varying geotextile and GCL manufacturers, while later modules (M2, M3, and M4, constructed 2004-2024) incorporated more sophisticated double-sided textured HDPE geomembranes, secondary containment layers, and geosynthetic ballast wind protection systems. The total area of lined modules documented exceeds 150 acres, with the most recent installation completed in February 2024 covering 27 acres under the direction of Ford Construction Co., Inc. and D&E Construction.
The specifications document reflects an evolution in landfill liner engineering standards and material technology over three decades, with manufacturers transitioning from earlier suppliers such as Gundle and Serrot to contemporary providers including Layfield Geosynthetics, Solmax, and Agru America. Permeability requirements for low-permeability soil and clay liner components generally maintained stringent standards with hydraulic conductivity values (K) ranging from less than 1×10⁻⁷ cm/s to 5×10⁻⁹ cm/s depending on the phase. The document serves as a baseline reference for the County's on-call construction quality assurance services contract opportunity, which requires CQA firms to perform monitoring, testing, and documentation for any future emergency repairs or routine maintenance to these liner systems, as well as materials testing to ensure regulatory compliance for sideslope leachate collection systems and final cover materials.
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Abbreviations:
GM Geomembrane LDS Leak Detection System GT Geotextile HDPE High Density Polyethylene
GCL Geosynthetic Clay Liner SST Single-Sided Texturing DST Double-Sided Texturing
General Contractor: VeerKamp Construction Date: Nov. 1993 Liner Installer: Serrot Area: 15.5 acres
CQA Firm:
Floor Slope Material Notes
2 ft Operations Layer 2 ft Operations Layer Slope: 5 ft vertical maximum 8 oz/sy Nonwoven GT Filter -- (Not Identified) 1 ft Drainage Layer -- Pea Gravel Pea Gravel 60 mil SST HDPE GM 60 mil SST HDPE GM Gundle Gundline HDT Textured side down 2 ft Low-Permeability Soil 2 ft Low-Permeability Soil Imported: Van Vleck Ranch K < 1x10-7 cm/s
General Contractor: Ford Construction Date: Nov. 1994 Liner Installer: Geo Pacific Area: 18.1 acres
CQA Firm:
Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer Slope: 1x10-3 cm/s 8 oz/sy Nonwoven GT Filter -- Trevira 1 ft LCRS Drainage Layer -- 60 mil SST HDPE GM 60 mil SST HDPE GM Gundle Gundline HDT Texture side down 1 ft Low-Permeability Soil -- Imported: Van Vleck Ranch K < 1x10-7 cm/s GCL GCL Claymax 50 CSP K < 2x10-9 cm/s
General Contractor: Ford Construction Date: Aug.1995 Liner Installer: Serrot Area: 16.7 acres
CQA Firm:
Floor Slope Material Notes
2 ft Operations Soil 2 ft Operations Sand 7 oz/sy Nonwoven GT Filter -- Amoco Fabrics Style 4553 1 ft LCRS Drainage Layer -- 60 mil SST HDPE GM 60 mil SST HDPE GM Serrot HST S/S Text 60 mil Texture side down GCL GCL CETCO - Bentomat ST
General Contractor: Ford Construction Date: Oct. 1997 Liner Installer: GSI United Linings Area: 6.5 acres
CQA Firm:
Floor Slope Material Notes
2 ft Operations Layer 2 ft Operations Layer 8 oz/sy Nonwoven GT Filter -- Amoco Fabrics Style 4508 1 ft LCRS Drainage Layer -- 60 mil SST HDPE GM 60 mil SST HDPE GM Columbia Geosystems Textured side down GCL GCL Bentofix NW
TABLE 1
LINER SYSTEM COMPONENTS
KIEFER LANDFILL
COUNTY OF SACRAMENTO, DEPT. OF WASTE MANAGEMENT & RECYCLING
Module M1L, Phase 1
Module M1L, Phase 2
Module M1L, Phase 3
Module M1L, Phase 4A
County of Sacramento, DWMR P:\Shared Folders\Engineering\Secured Divisional Folders\KIEFER LANDFILL\As-Builts\Baseliner\KLF Base Liner Summary.xlsx, 9/27/2024 Page 1 of 3
Attachment A
TABLE 1
LINER SYSTEM COMPONENTS
KIEFER LANDFILL
COUNTY OF SACRAMENTO, DEPT. OF WASTE MANAGEMENT & RECYCLING
General Contractor: Yubacon Construction Date: Nov. 1998 Liner Installer: National Seal Area: 8.9 acres
CQA Firm:
Floor Slope Material Notes
2 ft Operations Layer 2 ft Operations Layer 8 oz/sy Nonwoven GT Filter -- Mirafi S800 1 ft LCRS Drainage Layer -- 60 mil SST HDPE GM 60 mil SST HDPE GM NSC/Columbia Geosystems Textured side down GCL GCL CETCO - Bentomat DN
General Contractor: Ford Construction Date: Feb. 2004 Liner Installer: C.W. Neal Corp Area: 18 acres
CQA Firm: EMCON Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer Slope: K > 1x10-3 cm/s 8 oz/sy Nonwoven GT Filter -- SI Geosolutions - Geotex 861 1 ft LCRS Drainage Layer -- 8 oz/sy Nonwoven GT Cushion -- SI Geosolutions - Geotex 861 Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM GSE - HD Textured Primary GCL Primary GCL CETCO - Bentomat DN K < 5x10-9 cm/s LDS Geocomposite -- CETCO - TexDrain TD 200 DS6 Secondary 60 mil DST HDPE GM -- GSE - HD Textured Secondary GCL -- CETCO - Bentomat DN K < 5x10-9 cm/s
General Contractor: Ford Construction Date: Oct. 2005 Liner Installer: D&E Construction Inc Area: 13.5 acres
CQA Firm: EMCON Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer Slope: K > 1x10-3 cm/s 8 oz/sy Nonwoven GT Filter -- GSE - NW8 1 ft LCRS Drainage Layer -- 8 oz/sy Nonwoven GT Cushion -- GSE - NW8 Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM GSE - HD Black/White Textured Primary GCL Primary GCL CETCO - Bentomat DN K < 5x10-9 cm/s LDS Geocomposite -- GSE - 6 oz DS 200 mil FabriNet Secondary 60 mil DST HDPE GM -- GSE - HD Black/White Textured Secondary GCL -- CETCO - Bentomat DN K < 5x10-9 cm/s
General Contractor: DeSilva Gates Construction Construction Date: Jan. 2009 Liner Installer: D&E Construction Inc Area: 39 acres
CQA Firm: Shaw Environmental Inc Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer 8 oz/sy Nonwoven GT Filter -- GSE - NW8 1 ft LCRS Drainage Layer -- 8 oz/sy Nonwoven GT Cushion -- GSE - NW8 Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM GSE - White Textured Primary GCL Primary GCL GSE - Bentofix NWL-35 LDS Geocomposite -- GSE - 6 oz DS 200 mil FabriNet Secondary 60 mil DST HDPE GM -- GSE - White Textured Secondary GCL -- GSE - Bentofix NWL-35
Module M3, Phases 1-2
Module M1L, Phase 4B
Module M2, Phase 1
Module M2, Phase 2
County of Sacramento, DWMR P:\Shared Folders\Engineering\Secured Divisional Folders\KIEFER LANDFILL\As-Builts\Baseliner\KLF Base Liner Summary.xlsx, 9/27/2024 Page 2 of 3
TABLE 1
LINER SYSTEM COMPONENTS
KIEFER LANDFILL
COUNTY OF SACRAMENTO, DEPT. OF WASTE MANAGEMENT & RECYCLING
General Contractor: Wood Brothers Inc Construction Date: Aug. 2012 Liner Installer: D&E Construction Inc Area: 12 acres
CQA Firm: Golder Associates Inc Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer Slope: K > 1x10-3 cm/s 8 oz/sy Nonwoven GT Filter -- GSE - NW8 1 ft LCRS Drainage Layer -- 8 oz/sy Nonwoven GT Cushion -- GSE - NW8 Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM GSE - White Textured Primary GCL Primary GCL CETCO - Bentomat DN K < 5x10-9 cm/s LDS Geocomposite -- GSE - FabriNet UF Secondary 60 mil DST HDPE GM -- GSE - White Textured Secondary GCL -- CETCO - Bentomat DN K < 5x10-9 cm/s
General Contractor: ICS, Inc Construction Date: May 2021 Liner Installer: Layfield Geosynthetics Area: 32 acres
CQA Firm: Geo-Logic Associates Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer 8 oz/sy Nonwoven GT Filter -- Tencate - Mirafi S800 1 ft LCRS Drainage Layer --
-- Geosynthetic Ballast System Wind Defender TG 12 oz/sy Nonwoven GT Cushion -- Skaps - GT112 aka: Layfield - LP12E Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM Layfield - 60 mil HDPE GM Primary GCL Primary GCL CETCO - Bentomat DN-HS LDS Geocomposite -- Skaps - TN 250-2-6 Secondary 60 mil DST HDPE GM -- Layfield - 60 mil HDPE GM Secondary GCL -- CETCO - Bentomat DN-HS
General Contractor: Ford Construction Co, Inc. Construction Date: Feb-24 Liner Installer: D&E Construction Area: 27 acres
CQA Firm: Geo-Logic Associates Floor Slope Material Notes
2 ft Soil Operations Layer 2 ft Sand Operations Layer 8 oz/sy Nonwoven GT Filter -- Solmax Mirafi S800 8 oz/sy 1 ft LCRS Drainage Layer --
-- Geosynthetic Ballast System Wind Defender TG 12 oz/sy Nonwoven GT Cushion -- Solmax Mirafi S1200 12 oz/sy Primary 60 mil DST HDPE GM Primary 60 mil SST HDPE GM Agru America Microspike Primary GCL Primary GCL Solmax Bentoliner NW 0.75 lb/sf LDS Geocomposite -- Solmax Double-Sided FabriNet 225 mil, 6 oz/sy GT Secondary 60 mil DST HDPE GM -- Agru America Microspike Secondary GCL -- Solmax Bentoliner NW
Module M4, Phase 2
Module M3, Phase 3
Module M4, Phase 1
County of Sacramento, DWMR P:\Shared Folders\Engineering\Secured Divisional Folders\KIEFER LANDFILL\As-Builts\Baseliner\KLF Base Liner Summary.xlsx, 9/27/2024 Page 3 of 3
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