PVN Soil Mix 2023

See the attached solicitation document for full terms and conditions. 3/14/2023 Amendment to Solicitation - the Delivery Time Frame is corrected as follows: the first delivery is expected on or before March 27, 2023. The Placerville Nursery requires 714 cubic yards of potting soil mix to plant tree seedlings. The mix must meet the following specifications for composition and cleanliness of materials, packaging, and delivery: Description of Requirement (Specifications) Mix shall be 80% peat moss and 20% Vermiculite or agreed upon ratio. Some changes in composition may be considered based upon price. Email the Contracting Officer with any proposed changes with enough time for a decision to be made regarding acceptability and for the decision to be posted for all vendors to consider. Peat Moss specs : Choice cut ‘Canadian’ sphagnum peat moss. Vacuum mined. Light (blond) peat color Percentage of fines in peat to be less than 8% from the #100 mesh sieve with a course/fine ratio of 1:2 using the # 10 sieve. Vermiculite specs : #2 International grade agricultural (horticultural) vermiculite. No more than 10% of fines less than 1mm in size. Quotation must include description of vermiculite type and source used. Must be certified asbestos free. Mixed media will have the following: Bulk density of media should be 0.09 gm/ml. pH range after wetting 4.0 – 5.4 Dry density will be 8 to 10 pounds per cubic foot. Salinity (salt) shall be less than 1.5 mmhos/cm. Media shall contain the wetting agent like Aquaduct at a rate of 1 pound per cubic yard. Media shall have a moisture content of from 25 to 40 percent by dry weight. Aeration porosity shall be between 25-35% Desired exchangeable nutrient range: Parts per Million Nitrogen (NH4) 0.0 Nitrogen (NO3) 0-10 Phosphorous 0-10 Potassium 10-30 Calcium 10-50 Magnesium 0-20 Iron 0.3-1.3 Copper 0.001-0.011 Zinc 0.080-0.190 Chlorides 0-5 Media must be supplied in opaque tote bags of approx. 81 cu ft. Shipments must be staggered and coordinated with nursery before delivery. Bags will be shrink-wrapped, or non-slip stacked on pallets to aid in forklift transport. Delivery Date and Delivery Location DELIVERY LOCATION: USDA Forest Service, Placerville Nursery 2375 Fruitridge Road Camino, CA 95709-9714 DELIVERY TIME FRAME: First delivery on or before March 27, 2023 , with additional shipments as needed by the nursery throughout the spring, all shipments must be coordinated with nursery before delivery. Call 24 to 48 hours in advance of delivery. DELIVERY HOURS: Monday through Friday, 0800 to 1500, excluding federal holidays. DELIVERY CONTACT: Rod Russell at (530) 317-8367 (cell) or Front Office at (530) 648-5021. Call 24 to 48 hours in advance of delivery.