AGGREGATE STONE: W911RX-26-Q-A032 W911RX27QA002 0001

1.STATEMENT OF WORK (SOW)

1.1 This Statement of Work (SOW) defines the requirements for the procurement, hauling, and delivery of various aggregate stone materials to multiple Directorate of Public Works sites. The primary objective is to maintain tactical trails, base road infrastructure, and erosion control measures essential for sustained mission readiness.

This contract is a single-award Indefinite-Delivery/Indefinite-Quantity (IDIQ) contract for aggregate materials, comprising a twelve-month Base Period, four (4) consecutive twelve-month Option Periods exercisable pursuant to FAR 52.217-9, and an optional extension not to exceed six (6) months pursuant to FAR 52.217-8. Deliveries shall be authorized exclusively through individual delivery orders issued on an as-needed basis to meet installation mission requirements. While individual delivery orders are historically estimated to range between 1,200 and 1,400 tons, actual quantities will fluctuate based on operational demand, and no annual or per-order minimums are guaranteed. Pursuant to FAR 52.216-22, the Government’s sole minimum purchasing obligation is a cumulative amount of $2,000.00, applicable exclusively to the Base Period, while the aggregate ordering ceiling across all ordering periods, authorized extensions, and surge requirements shall not exceed $4,500,000.00. As this procurement is a 100% total small business set-aside, the Contractor must comply with the Nonmanufacturer Rule (13 CFR § 121.406 and FAR 52.219-33), requiring that all aggregate materials furnished under this contract be mined, quarried, or produced by a small business-owned quarry.

2. Technical Specifications

2.1 All aggregate materials must conform to the following specifications. The contractor is responsible for providing laboratory certification (AASHTO or ASTM standards) per material source before initial delivery (in-house quarry laboratory results are acceptable; re-certification is only required if the material source/quarry changes).

Physical material samples are not required during evaluation; laboratory certification documentation is sufficient.

Material Code

Specification Reference Primary Mission Application

AB-3 KDOT Section 1104 Aggregate Base Type 3: High-density base course for heavy-duty tactical vehicle lanes and hardstands.

SA-1 KDOT Division 1100, Section 1104 / Section 1111 (Crushed Materials Only; Uncrushed Sand- Gravel is Strictly Prohibited)

Select Aggregate: Used for subgrade stabilization and shoulder reinforcement where high shear strength is required. The contractor shall submit washed sieve analysis reports (AASHTO T 27 / T 11) and Plasticity Index (PI) certifications verifying a PI between 4 and 12 prior to initial delivery

SS-5 Screened/Special Sand (Fine)

Special Sand: Ideal for pipe bedding, utility trench backfill, and as a leveling course for interlocking pavers or masonry units. SS-5 may consist of clean, washed natural sand, or manufactured sand produced from crushed limestone screenings. If crushed limestone screenings are utilized, the contractor must provide certified laboratory test results demonstrating a washed No. 200 sieve pass of ≤ 5.0% and a minimum Sand Equivalent (SE) value of 45. Delivery restricted to Main Post Public Works Yard only

Fill Sand

(FA-3)

Standard FA-3 Fill Sand

(CLIN 0005)

Utility & Protection: General-purpose sand used for trench backfill, leveling under slabs, and filling sandbags for force protection/fortification. Applied to runways, helipads, and tactical roads during winter operations to increase traction for aircraft and heavy equipment. Delivery restricted to Main Post North of Building 318 Salt Barn only.

3. Gradation & Quality Control

3.1 The contractor is responsible for ensuring the following technical parameters are maintained throughout the delivery cycle:

Property Requirement for AB-3 / SA-1 Requirement for SS-5

Plasticity Index (PI)

AB-3: Typically 2 to 8; SA-1: PI strictly between 4 and 12

Non-Plastic (NP)

Sieve Analysis

Must meet 1.5" to #200 sieve gradation. (KDOT Section 1104 for AB-3; KDOT Section 1104/1111 for SA-1).

Must conform strictly to complete SS-5 Gradation Envelope (Table 3.3.2 below). Washed minus No. 200 ≤ 5.0% (AASHTO T 11 / ASTM C 117); Sand Equivalent (SE) ≥ 45 for crushed limestone screenings.

Moisture Content

Maintained within ±2% of optimum.

Free draining; max 5% moisture by weight.

Deleterious Sub.

Max 5% (Shale, Coal, or Soft Rock).

Clean; free of organic matter or clay balls.

Material

Code

Specification

Reference

Primary Mission Application

Fill Sand

(FA-3)

Standard FA-3

Fill Sand (CLIN

0005)

Utility & Protection: General-purpose sand used for trench backfill, leveling under slabs, and filling sandbags for force protection/fortification. Safety Operations: Mixed with Road Salt during winter operations to increase traction.

3.2 Technical Requirements for Sand

• Purity: FA-3 (Fill Sand) and SS-5 (Special Sand) must be free of organic matter, roots, sod, or clay balls that could compromise structural integrity or drainage.

• Moisture Management: For Fill Sand intended for immediate sandbagging or structural compaction, moisture content should be maintained between 3% and

7% to ensure maximum density and "stackability."

• Gradation Verification: The contractor must provide a Sieve Analysis for each code. The contractor shall provide initial laboratory sieve analysis (in-house quarry laboratory acceptable) verifying compliance of FA-3 and SS-5 prior to initial delivery

3.3 Gradation Requirements (Sieve Analysis)

3.3.1 CLIN 0005 Fill Sand (FA-3) Gradation Envelope: CLIN 0005 shall conform strictly to the Standard FA-3 Fill Sand gradation envelope below:

Sieve Size Master Gradation Limits (% Passing)

3/8 Inch (9.5 mm) 100%

No. 4 (4.75 mm) 97 ± 3% (94% – 100%)

No. 8 (2.36 mm) 80 ± 15% (65% – 95%)

No. 16 (1.18 mm) 50 ± 20% (30% – 70%)

No. 50 (300 µm) 25 ± 15% (10% – 40%)

Minus No. 200 (75 µm) Not to exceed 5.0% (washed basis)

3.3.2 CLIN 0004 Fine Aggregate SS-5 Complete Gradation Envelope:

Sieve Size Target Percent

Passing (%)

Engineering Function & Compliance Notes

No. 4 (4.75 mm) 100 Establishes the absolute maximum nominal particle size.

No. 8 (2.36 mm) 90 – 100 Ensures a uniform transition into the sand-sized range.

No. 16 (1.18 mm) 60 – 90 Distributes intermediate particles for optimal interlocking.

No. 30 (600 µm) 40 – 75 Controls bulk density and water-holding/drainage capacity.

No. 50 (300 µm) 15 – 45 Crucial for preventing void spaces and settlement.

No. 100 (150 µm) 2 – 20 Restricts over-fining on fine sand fractions.

No. 200 (75 µm) 0 – 10.0 Strict cap on dust and clay. Material must be tested via AASHTO T 11 / ASTM C 117

(washed) to prevent structural failures

4. Logistics and Delivery Requirements

4.1 The contractor shall coordinate deliveries to the following designated locations. All deliveries must be completed using "tight-bed" semi-trailer trucks or dump trucks to prevent material loss during transit. Deliveries are strictly limited to the three (3) distinct delivery destinations outlined below. Commercial aggregate haulers are restricted exclusively to the 12th Street Gate.

Commercial deliveries will not be accepted via Estes Gate, Henry Gate, or Parker Gate.

Location Name Grid/Address Site Access Requirements

Tank Gunnery Range South Range 18

Vinton School Road 24-hour advance notice Delivery between 0730 to 1600 hrs. Monday through Thursday, and 0730 to 1430 hrs.

on Non-RDO Fridays only. Closed federal holidays and weekends.

Tank Gunnery Range North

(MPRC)

North of Wakefield on US HWY 77

24-hour advance notice Delivery between 0730 to 1600 hrs. Monday through Thursday, and 0730 to 1430 hrs.

on Non-RDO Fridays only. Closed federal holidays and weekends.

Main Post Public Works Yard (SS 5 Only)

Northeast Corner of Public Works Yard Building 352

24-hour advance notice Delivery between 0730 to 1600 hrs. Monday through Thursday, and 0730 to 1430 hrs.

on Non-RDO Fridays only. Closed federal holidays and weekends. Contractor may propose a single flat haul rate for Main Post.

Main Post North of Building 318 Salt Barn (Fill Sand / FA-3 Only)

North of Building 318 Salt Barn

24-hour advance notice Delivery between 0730 to 1600 hrs. Monday through Thursday, and 0730 to 1430 hrs.

on Non-RDO Fridays only. Closed federal holidays and weekends. Contractor may propose a single flat haul rate for Main Post.

5. Operational Standards

1. Notice to Proceed: Deliveries shall commence within ten (10) business days of the issuance of a Task Order.

2. Weight Verification: Every load must be accompanied by a certified weight ticket from a state-certified public weigher and delivered to the Site Manager or designated representative

The ticket must include the Truck ID, Gross Weight, Tare Weight, and Net Weight in tons.

3. Quality Control: The Site Manager reserves the right to reject any load containing excessive fines, clay, or organic debris not specified in the grading requirements.

Rejected loads shall be removed and replaced at the contractor's expense.

4. Stockpiling: If immediate spreading is not required, material shall be stockpiled at least 200 feet away from any permanent structures or active waterways to prevent runoff.

6. Administrative and Invoicing

6.1 All invoices must be submitted electronically to the Supply Department for processing.

Email to Yvonne Johnson-Wilson @yvonne.a.johnson-wilson.civ@army.mil and Gary J Jungels @gary.j.jungels.civ@army.mil. Payments are processed exclusively through Wide Area Workflow (WAWF) following complete and verified delivery. In accordance with Federal Acquisition Regulations, advance payments and progress payments are strictly prohibited. Option year pricing is fixed; index-linked price adjustments are not authorized.

5. Contract and Task Order Number.

6. Material Description and Unit Price per Ton.

7. Consolidated total of Net Weight from attached weight tickets.

8. Proof of Delivery (POD) signed by the receiving Site Manager or designated representative.

7. Delivery Vehicle Requirements: Aggregate & Sand

7.1 Vehicle Selection (BLUF)

The contractor is responsible for selecting and deploying vehicles that are compatible with both the material type (to prevent segregation/loss) and the specific delivery site terrain (e.g., paved depot vs. off-road tactical range). All vehicles must be "tight bed" to prevent material leakage during transit on public and military roadways.

7.2 Vehicle Type Matrix

Vehicle Type Capacity (Approx.)

Best Mission Application

Standard Dump Truck (Tri-Axle)

15 – 18 Tons Versatile: Best for tight delivery zones, motor pools, and small-scale utility repairs. Allows for "tailgate spreading."

End Dump Semi- Trailer

22 – 26 Tons Bulk Delivery: Best for high-volume stockpiling at Main Supply Depots. Requires high overhead clearance (25-30 ft) for tipping.

7.3 Operational Constraints & Requirements

1. Load Integrity (Tarping): All loads of Sand and SS-5 must be securely tarped from the point of origin to the delivery site to prevent wind-blown dust and moisture changes.

2. Bed Cleanliness: To maintain the Quality Control of "Washed Sand" or specialized SS-5, beds must be thoroughly cleaned of any previous debris, mud, or larger aggregates (like Rip-Rap) before loading.

3. Leakage Prevention: Vehicles must have secure, well-sealing tailgates. Any vehicle found leaking "fines" or sand onto public or installation roads will be turned away and may lead to a safety violation.

8. Site Access Safety & Bridge Protocols

8.1 Site Access Safety

• Overhead Hazards: End dumps are strictly prohibited from tipping near low-hanging power lines, communication cables, or inside maintenance bays.

• Off-Road Capability: For deliveries to Tank Gunnery Range South (Range 18) and Tank Gunnery Range North (MPRC), vehicles must be equipped with high-clearance axles.

The Government is not responsible for towing contractor vehicles that become stuck due to improper equipment selection.

• Weight Limits: The contractor must ensure the vehicle's "Gross Vehicle Weight" (GVW) does not exceed the load ratings for bridges or culverts leading to the delivery point.

8.2 Bridge and Culvert Weight Limit Protocols

• Typical Maximum Gross Vehicle Weight (GVW): 80,000 lbs (40 Tons) for standard

5-axle tractor-trailers.

• Axle Limits: Generally, 20,000 lbs for a single axle and 34,000 lbs for a tandem axle.

• Military Load Classification (MLC): Some bridges may be marked with MLC circles (e.g., "MLC 40" or "MLC 70"). The contractor must ensure their vehicle's equivalent MLC does not exceed the posted limit.

• Posted Limits: The contractor is strictly prohibited from crossing any bridge or culvert with a posted weight limit lower than the vehicle's current GVW.

8.3 Weight Compliance

Structural Load Limits

• "The Contractor shall be responsible for verifying the load capacity of all bridges, culverts, and improved/unimproved surfaces along the delivery route."

• "Prior to commencement of work, the Contractor may request a 'Haul Route Approval' from the Contracting Officer's Representative (COR) or Installation DPW."

• "Damage to any bridge, culvert, or roadway resulting from the Contractor's failure to adhere to posted weight limits or engineering load ratings shall be repaired at the Contractor's sole expense."