Summary
Supply and delivery of topsoil (black earth). The topsoil (black earth) shall be: uniform in color and texture; free from grass roots, sod, weeds, rocks, stiff clay, clods, or any other substance undesirable to plant growth; uncontaminated by chemicals or other substances; loose, friable, and of good tilth. The topsoil (black earth) shall consist of weathered surface soils (A horizon) and shall be free of: hard fragments and stones larger than one inch across; objectionable salts; partially disintegrated debris or noxious weeds (including weed seed) and plants. The topsoil (black earth) material shall contain at least 2 percent natural organic matter as determined by loss on ignition of moisture-free samples dried and tested in accordance with the most current methods of the Association of Official Agricultural Chemists. The topsoil (black earth) material shall have a pH range of 6.5 to 7.5. The topsoil (black earth) material shall be pulverized; 90% of the pulverized material must pass a 1/2" screen. Contract term: one (1) year, with four (4) additional one (1) year extension options.