GAOA Gravel for Campground Modoc NF

Purchase & Delivery of Aggregate Base Devil’s Garden Ranger District Modoc National Forest Specifications/Salient Characteristics SCOPE OF WORK Purchase and Delivery of 2480 Tons of ¾” Class II aggregate base to the locations listed below. Delivery should be split evenly between all locations. (Location maps provided. See attachments.) Pit Name Coordinates Telephone Flats 41.560953, -121.56392 Cold Creek 41.200843, -120.149448 Double Devil 41.521701, -120.66507 Sagehen 40.964134, -120.999808 START DATE The delivery period will begin on 10/01/2026. Delivery will be on an on-call basis for requirements on an as-needed basis for a two year period. CONTRACT TIME October 1, 2026 – September 30, 2028. SPECIFICATIONS Materials furnished under the awarded bid shall conform to the Cal Trans standard specifications for Class II Aggregate Base: Aggregate Base shall be free of organic matter and other deleterious substances. Aggregate Base shall not include any reclaimed material, like asphalt concrete, portland cement concrete, lean concrete base, cement treated base or any combination of these materials. Aggregate Grading Requirements 3/4 “Maximum Sieve Size Percent Passing 2” ----- 1 ½” ----- 1” 100 ¾” 90 -100 No. 4 40 -70 No. 30 12-40 No. 200 3 - 15 Quality Requirements Test Operating Range Contract Compliance Sand Equivalent (min)t 21 18 Resistance (R-value) (min) --- 50 ADDITIONAL VENDOR OBLIGATIONS The Vendor awarded the Contract shall provide the Civil Engineer with the following: One initial test to document that material is in compliance with the Specifications, i.e., Aggregate Grading Requirements and Quality Requirements.