2022-02-09_PERMIT FILE - M2021046 (4)

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aJ�* foster wheeler Zephyr Gold USA Ltd. PAGE 4 OF 15 Dawson Gold Project SEC. NO.: Dawson Filtered Tailings Storage Facility SPECIFICATION 02200.0 Pre-feasibility Study TECHNICAL SPECIFICATIONS FOR DATE: (ORIGINAL) Fremont County, Colorado EARTHWORKS 20-October-16 PROJECT NO.: 74201633 REVISION: A DATE: 20-Oct-16 • ASTM D1140 —Standard Test Method for Amount of Material in Soils Finer than the No. 200 (75- lam) Sieve • ASTM D1556 — Standard Test Method for Density and Unit Weight of Soil in Place by the Sand- Cone Method • ASTM D1557 — Test Method for Laboratory Compaction Characteristics of Soil Using Modified Effort • ASTM D2216—Standard Test Method for Laboratory Determination of Water Moisture Content of Soil and Rock by Mass • ASTM D2487 — Standard Classification of Soils for Engineering Purposes (Unified Soil Classification System) • ASTM D4318 — Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils (SANS 5852:1976) • ASTM D5030—Standard Test Method for Density of Soil and Rock in Place by Water Replacement Method in a Test Pit • ASTM D6938 — Standard Test Method for In-Place Density and Water Content of Soil and Soil- Aggregate by Nuclear Methods (Shallow Depth) • U.S. Army Corps of Engineers, 1994. "Engineering and Design Test Quarries and Test Fills", EM 1110-2-2301. 1.3 DEFINITIONS Borrow: Material excavated on the site or taken from designated borrow areas. Coverage: One coverage is defined as the result of successive passes by a piece of compaction equipment,which by means of sufficient overlap,to ensure that all areas of the layer or lift being compacted have been subjected to one pass of the compaction equipment. Fines: Material passing the 0.075 mm (No. 200) sieve. S:\ZEPHYR MINERALS\DRMS MINE APPLICATION\02200-EARTHWORKS.DOCX