B08_Solicitation_Atch_01_Specifications.pdf

Attachment One

Solicitation # 140P8523Q0019

Specifications

Winter Sand and Aggregate

Yosemite National Park

The National Park Service at Yosemite National Park has a requirement for the supply and delivery of winter sand (de-icing chips) and aggregate to be delivered to five locations within the Park. Yosemite National Park has an ongoing need for sand and aggregate for road maintenance and visitor safety.

The IDIQ contract to be awarded with one (1) base year and four (4) 12-month option years (exercised at the discretion of the federal government). The IDIQ total amount (including options) shall not exceed $950,000.00. The successful IDIQ awardee will be guaranteed a minimum of $25,000 of work upon award.

Description

The work consists of delivering winter sand (de-icing chips) to five (5) storage sites, and aggregate to four (4) storage sites, in Yosemite National Park.

Deliverables must meet the material specifications supplied in this summary, as well as color.

Aggregate products shall be billed by the ton, per certified weight slips with delivery location noted on slips.

Delivery Locations Winter Sand:

A. El Portal Maintenance Yard, 5083 Foresta Road, El Portal CA 95318

B. Wawona Maintenance Yard, 2540 Wawona District Circle, Wawona CA 95389

C. Hodgdon Maintenance Yard, 6127 Hillside Loop Road, Hodgdon CA 95389

D. Valley Maintenance Yard, #2 Fire House Lane, Yosemite CA 95389

E. Tuolumne Sewer Treatment Plant, HWY 120, Tuolumne Meadows CA 95389

Delivery Locations Aggregate:

A. El Portal Maintenance Yard, 5083 Foresta Road, El Portal CA 95318

B. Wawona Maintenance Yard, 2540 Wawona District Circle, Wawona CA 95389

C. Hodgdon Maintenance Yard, 6127 Hillside Loop Road, Hodgdon CA 95389

D. Tuolumne Sewer Treatment Plant, HWY 120, Tuolumne Meadows CA 95389

*Note-Visit www.nps.gov/yose to obtain the latest status and locations for road construction activities, estimated dates of construction, and estimated delays. Travel restrictions on Route

140. All vehicles are restricted to 45 feet total length on route 140 into the park, see Caltrans website http://www.dot.ca.gov for further details. Please verify current road conditions prior to hauling. These delays must be considered part of the existing conditions within the park and will not be cause for any additional compensation as a result of this or related work.

Period of Performance Base Year – June 1, 2023 – May 31, 2024 Option Year One – June 1, 2024 – May 31, 2025 Option Year Two – June 1, 2025 – May 31, 2026 Option Year Three – June 1, 2026 – May 31, 2027 Option Year Four – June 1, 2027 – May 31, 2028

Estimated Minimum/Maximum Material Amounts Base Year 2023 Total tonnage of sand:

Minimum of 250 tons per year Maximum of 5,000 tons per year

Total tonnage of aggregate:

Minimum of 25 tons per year Maximum of 1,200 tons per year

Submittals

Copy of certified weight tickets shall accompany each load as well as delivery location clearly marked on every weight ticket.

All invoices submitted for payment shall include location of delivery, date, tonnage and copy of certified weight ticket.

Quality Assurance

The material certification shall be from a California State Certified Laboratory.

All equipment shall be cleaned prior to entering the Park and will be subjected to random inspections by park personnel. If vehicles are not clean and weed free, vehicles will be subject to immediate removal from the park, along with the material they are hauling at no additional expense to the Government.

1. Winter Sand—1/8” Black deicing chips

Washed sand shall be free from deleterious coatings, clay balls, roots, bark, and other material that will clog or inhibit an even distribution of sand. Any of the above materials including oversize rock will clog or damage the equipment that spreads the sand. Also, any sand that contains too many fines such that when distributing the sand it creates an unsafe dust cloud, the Government has the right to immediately reject the supplied sand and have it replaced with cleaner sand at no additional cost to the Government.

1-gallon samples of the stockpiled sand shall be submitted to the Contracting Officer’s Representative prior to delivery and shall include the source location where the COR has the option to perform an onsite inspection of the supply source (quarry). All material shall be weed free with certified sample of proof, if the sand is found to contain weeds it shall immediately be replaced with weed free material at no additional expense to the Government.

The winter sand shall meet the following specification- sieve designation percentage of weight passing the sieve and it shall be washed and clean to the approval of the COR.

Sieve Specs

Passing 100 Size 3/8

#4 95-100

#8 20-50

#16 0-10

#30 0-5

#50

#100

#200 0-1

Appearance

Shall be dark in color (dark grey to black) so color assists with melting ice and pack.

Dark colored material shall be highly visible for spreader operator to see coverage and for the public using the roads.

2. Aggregate--1 inch minus base rock Clean, hard, durable fragments or particles of crushed-blasted granite, aggregate base stone. The coarse aggregate (material retained from sieve No. 4) shall consist of material of which at least 90% by weight shall have crushed particles. Materials that break up due to freeze-thaw or wet-dry cycling shall not be used. The aggregate shall be free of organic material, vegetable matter, clay, and deleterious substances, and shall be of such nature that it can be compacted readily to form a firm base. All materials shall be weed free with a certified sample of proof, if the aggregate is found to contain weeds it shall immediately be replaced with weed free material at no additional expense to the Park Service.

Coarse aggregate: AASHTO T96-77, percentage of wear on not more than 50.

Fraction passing No. 4 sieve shall have a liquid limit not to exceed 25 and Plasticity index of not more than 6, as determined by AASHTO T89-81 and T90-81, respectively.

Material shall meet following screen analysis requirements by weight:

Sieve Specs Size Passing 1 inch 100% ¾ inch 87-100% ½ inch 70-85% 3/8 inch 70-80% No.4 50-60% No.8 35-45% No.30 15-25% No.200 5-10%

Payment for aggregate base and sand will be by the ton, to the nearest tenth of a ton, verified by certified weight tickets which shall list delivery date and location of delivery. Deductions will be made for moisture content exceeding five percent by weight. Payment will be made at the contract unit price.