36C78619Q0165-002.pdf

RIVERSIDE LANDSCAPING MATERIALS

March 26, 2019

B.1 PRODUCT SPECIFICATIONS

MATERIALS PROVIDED: The Contractor shall provide the following materials and supplies on an as-needed basis. CLIN 0001 applies to the amended topsoil and CLIN 0002-0005 applies to mulches.

B.2.1 AMENDED TOPSOIL

A. Amended Topsoil: A homogeneous mixture consisting of 60% sandy loam topsoil/ 25% fir shavings / 10% compost / 5% manure by weight.

1. Topsoil: ASTM D 5268, Sandy Loam, pH range of 5.5 to 7, a minimum of 2 percent organic material content; free of stones 1 inch (25 mm) or larger in any dimension and other extraneous materials harmful to plant growth.

a. Topsoil Source: Import topsoil or manufactured topsoil from off-site sources.

Obtain topsoil displaced from naturally well-drained construction or mining sites where topsoil occurs at least 4 inches (100 mm) deep; do not obtain from agricultural land, bogs or marshes.

2. Compost: Well-composted, stable, and weed-free organic matter, pH range of 5.5 to 8;

moisture content 35 to 55 percent by weight; 100 percent passing through 1/2-inch (13-mm) sieve; soluble salt content of 5 to 10 Deci siemens/m; not exceeding 0.5 percent inert contaminants and free of substances toxic to plantings; and as follows:

a. Organic Matter Content: 50 to 60 percent of dry weight.

b. Feedstock: Agricultural, food, or industrial residuals; biosolids; yard trimmings; or source-separated or compostable mixed solid waste.

3. Fir Shavings: Decomposed, nitrogen-treated sawdust, ground bark, or wood waste; of uniform texture, free of chips, stones, sticks, soil, or toxic materials.

4. Manure: Well-rotted, unleached, stable or cattle manure containing not more than 25 percent by volume of straw, sawdust, or other bedding materials; free of toxic substances, stones, sticks, soil, weed seed, and material harmful to plant growth.

5. 450 cubic yards per year, dump loads. (NO BAGS)

B.2.2 MULCHES

A. Organic Mulch: Free from deleterious materials and suitable as a top dressing of trees and shrubs, consisting of one of the following:

1. Type: Premium Decorative mulch, red, 1” to 3”, free of any weeds or pests, similar in color and texture to the existing mulch.

2. 1,072 cubic yards/year, dump loads. (NO BAGS)

B. Mineral Mulch: Hard, durable stone, washed, free of loam, sand, clay, and other foreign substances, of following type, size range, and color:

1. Type 1: Crushed Granite.

a. Size Range: 3/4 inch (maximum), 1/4 inch (minimum).

b. Color: Southwest Brown, Uniform readily available natural gravel color range to match existing.

c. 426 tons/year, dump loads. (NO BAGS)

2. Type 2: Birds Eye Pea Gravel.

a. Size Range: 3/8-inch minus.

b. Color: Multi-color to match existing materials.

c. 500 tons/year, dump loads. (NO BAGS)

3. Type 3: Playground Sand.

a. 120 tons/year, dump loads. (NO BAGS)