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Geosyntec consultants SUBMITTAL REVIEW Area ' Expansion Foothill 1 1 San Joaquin t Submittal (No. (Subject)) 1024 G (Cemex Material and Test Data) Spec Section or Drawing: Section 02300 — 2.04 Reviewer: Geosyntec Consultants, Inc. Date: 7 July 2015 Review Status: Approved. Geosyntec has reviewed Submittal 1024 F — Cemex 5/16" x 1/8" gravel proposed by the Contractor for the gravel drainage material (GDM) to be used in test 12ad construction'. The following comments are offered: • The durability and hydraulic conductivity test result met the project specifications; A The submittal includes a certification that the material contains no limestone or other material that may adversely react with landfill leachate. The supporting testing (attached) indicates that 1.3% of the material is soluble in dilute hydrochloric acid; • Although the typical and upper end of the target gradation for the percentage passing the No. 4 sieve is outside the specified range, and the provided gradation does not indicate a target range for the material passing the No. 200 sieve, Geosyntec accepts the material based on the hydraulic conductivity value that meet the design intent. Therefore, the stated target gradation range in the submittal replaces the gradation listed in Part 2.05.17 of Section 02300 of the project specifications; and • The Contractor shall provide quality control (QC) test data for actual material to be supplied to the site per Table 02300-1. The Contractor should visit the plant in advance to ascertain that the materials produced at the plant meet the project specifications. Final acceptance of GDM will be based on conformance test results on samples taken from placed materials as part of CQA. • Geosyntec Consultants, Inc., "Construction Memorandum #1, Area 2A Expansion, Foothill Sanitary Landfill," 1 June 2015. 9 P\SJC\1780\Task 6.1 (Submittals)\#1024D engineers I scientist=s I innUvzjtUrs