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Any stratum or stockpile or soil which contains obvious pockets of highly organic material may be designated as muck or unsuitable for construction of subgrade by the Owner . Backfill material containing more than 2 . 0 % by weight of organic material , as determined by FM 1 -T 267 and by averaging the test results for three randomly selected samples from each stratum or stockpile of a particular material , shall not be used in construction of the reinforced volume . If an individual test value of the three samples exceeds 3 . 0 % , the stratum or stockpile will not be suitable for construction of the reinforced volume . No A-8 material permitted in embankment . E . Payment shall be made under : Bid Item No . 120 - 1 — Excavation , Regular ( Roadway) — Per Lump Sum Bid Item No . 120 -6 - 1 - Embankment ( Compacted in Place ) - Per Lump Sum SECTION — 160 - STABILIZATION A . Sub Article 160 - 5 . 1 is modified by the addition of the following : "The stabilization thickness indicated on plans shall be considered a minimum thickness . Thickness will vary to conform to the lines , and grades shown in the plans . " Minimum L . B . R . = 40 - No under-tolerance . B . Payment shall be made under: Bid Item No . 1604 - 1 - Type B Stabilization LBR40 ( 12 " ) - Per Square Yard SECTION — 285 - CEMENTED COQUINA SHELL BASE A . Sub Article 2854 is modified by the addition of the following : Base material , thickness and requirements are described in the construction plans . Only one type of alternate base material shall be used . No additional payment will be made for base thickness in excess of the specified thickness 3 . B . Payment shall be made under : Bid Item No . 285 -706 — Cemented Coquina Shell Base Group 6 ( 8 " ) Two Lifts - Per Square Yard 01025-22 Technical Specifications FAPublic Works\ENGINEERING DIVISION PROJECTS\1142- Misc Culvert Replacements\Admim\bid documents\Technical Specifications . doc