03. Attachment A - DSA Specifications.pdf

PDF 580 KB Posted

Attached to
BID FD13 DSA Bell Draft Road
Solicitation number
6100065100
Issued by
Erie County, Pennsylvania

About this file

This file is a specification attachment document issued by the Pennsylvania Department of Conservation and Natural Resources (DCNR), Division of Procurement & Supply, for Solicitation #6100065100 concerning the FD13 - Elk Bell Draft Road project. The project requires the delivery, paver-placement, and compaction of approximately 3,588 tons of limestone Driving Surface Aggregate (DSA), with the noted caveat that tonnage is estimated and subject to adjustment based on departmental needs. Contractors must submit either Form A.1 (Contractor Acknowledgement of DSA Product) if they will create and supply the DSA themselves, or Form A.2 (Quarry Letter of Intent) if the DSA will be supplied by a third-party quarry not owned by the contractor. Both forms must be completed in their entirety, signed and dated by an authorized representative knowledgeable of DSA specifications, and submitted with the bid response. Only one form should be included with the bid; failure to comply with this requirement may result in a non-responsive determination and contractor disqualification.

The DSA specifications require strict adherence to particle size distribution standards measured through passive sieve analysis, with defined low and high percentage ranges for materials passing various sieve sizes (1 inch, ½ inch, #4, #16, and #200). The fines passing the #200 sieve must be rock material with no clay or silt soil additions permitted; limestone and sandstone materials may be substituted for each other to meet distribution requirements, provided all material conforms to program specifications. Additional technical requirements include pH levels between 6 and 12.45 (measured by EPA 9045C), LA Abrasion loss less than 45 percent (AASHTO T-96/ASTM C131), Plasticity Index of 4 or below (ASTM D4318), with an optional allowance of 11-17 percent for materials with Plasticity Index of 2 or below, and delivery at optimum moisture content as determined by Proctor Test (ASTM D698, Procedure C), with a tolerance of ±1 percent from that value.

View the file

Other files

On GovTribe

Work with this file

  • Download the original file
  • Contacts named in this file
  • Similar government files
  • Ask GovTribe AI about this file

Text version

10/24/2025

ATTACHMENT A

Signed Acknowledgement of DCNR DSA Specifications

1. The Contractor must choose the appropriate acknowledgement letter:

a. DSA Contractor Acknowledgement of DSA Specifications (A.1)

This form is used when the Contractor will be creating and supplying the DSA.

b. DSA Quarry Letter of Intent (A.2)

This form is used when the DSA will be created and supplied by a quarry not owned by the Contractor.

2. The appropriate form must be printed, completed in its entirety, signed, and dated.

a. Both A.1 and A.2 must be signed only by approved representatives of the Contractor and Quarry respectively.

c. Representatives must be knowledgeable of DSA and be prepared to answer all questions on the product.

3. The Contractor must then include the appropriate fully executed form with their bid response (either A.1 or A.2.).

DO NOT attach both acknowledgements.

4. Failure to comply with this requirement could result in a non-responsive determination and subsequent disqualification for the Contractor.

BUREAU OF ADMINISTRATIVE SERVICES

A.1

CONTRACTOR ACKNOWLEDGEMENT OF DSA PRODUCT

(FORM MUST BE COMPLETED BY BIDDING CONTRACTOR)

Solicitation # 6100065100 FD13 - Elk Bell Draft Road Approximate Tonnage – 3,588 (Tonnage is estimated and can increase or decrease based on the needs of the Department.)

By signing this acknowledgement I, _______________________________________ (Print Name), an authorized representative of ____________________________________________ (Name of Contractor), confirms that ___________________________________________ (Name of Contractor) has the ability to competently create and supply certified Driving Surface Aggregate (DSA) for the Solicitation listed above that meets the following specifications.

Passive Sieve

Low Percentage

High Percentage

1 ½ inch 100% -- ¾ inch 65% 97%

#4 30% 65% #16 15% 32%

#200* 11% 15%

The fines passing the #200 sieve must be rock material. No clay or silt soil may be added. Limestone material passing the #200 sieve may be used to make up a deficit in the distribution of sandstone aggregate rock, and vice versa. All added material passing the #200 sieve must be derived from rock material that conforms to program specifications. The amount of particles passing the #200 sieve will be determined using the washing procedures specified in PTM No. 100.

*If the Plasticity Index for the Material is 2 or below, then the #200 sieve is permitted to be 11-17%.

pH: 6 – 12.45 as measured by EPA 9045C

LA Abrasion: < 45% loss based on Los Angeles Abrasion test, AASHTO T-96 [ASTM C 131]

Plasticity Index: ≤ 4 based on ASTM D4318 – Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.

Optimum Moisture: Material will be delivered and placed at optimum moisture content, or +/- 1% of that value, as determined for that particular source. The optimum percentage moisture will be determined using Proctor Test ASTM D698, procedure C, Standard.

Signature of Authorized Representative Date

Division of Procurement & Supply Rachel Carson State Office Building | P.O. Box 8769 | Harrisburg, PA 17105-8769 | 717.787.3278 | F 717.787.8624 | www.dcnr.pa.gov

BUREAU OF ADMINISTRATIVE SERVICES

A.2

QUARRY ACKNOWLEDGEMENT OF DSA PRODUCT - LETTER OF INTENT

(FORM MUST BE COMPLETED BY SUPPLYING QUARRY)

Solicitation # 6100065100 FD13 - Elk Bell Draft Road Approximate Tonnage – 3,588 (Tonnage is estimated and can increase or decrease based on the needs of the Department.)

By signing this Letter of Intent I, _______________________________________ (Print Name), an authorized representative of ____________________________________________ (Name of Company), confirms that ___________________________________________ (Location or Name of Quarry) has the ability to competently create and supply to ____________________________________ (Name of

Contractor) certified Driving Surface Aggregate (DSA) for the Solicitation listed above that meets the following specifications.

The fines passing the #200 sieve must be rock material. No clay or silt soil may be added. Limestone material passing the #200 sieve may be used to make up a deficit in the distribution of sandstone aggregate rock, and vice versa. All added material passing the #200 sieve must be derived from rock material that conforms to program specifications. The amount of particles passing the #200 sieve will be determined using the washing procedures specified in PTM No. 100.

*If the Plasticity Index for the Material is 2 or below, then the #200 sieve is permitted to be 11-17%.

pH: 6 – 12.45 as measured by EPA 9045C

LA Abrasion: < 45% loss based on Los Angeles Abrasion test, AASHTO T-96 [ASTM C 131]

Plasticity Index: ≤ 4 based on ASTM D4318 – Standard Test Method for Liquid Limit, Plastic Limit, and Plasticity Index of Soils.

Optimum Moisture: Material will be delivered and placed at optimum moisture content, or +/- 1% of that value, as determined for that particular source. The optimum percentage moisture will be determined using Proctor Test ASTM D698, procedure C, Standard.

Signature of Authorized Representative Date

Division of Procurement & Supply Rachel Carson State Office Building | P.O. Box 8769 | Harrisburg, PA 17105-8769 | 717.787.3278 | F 717.787.8624 | www.dcnr.pa.gov

Passive Sieve

Low Percentage

High Percentage

1 ½ inch 100% -- ¾ inch 65% 97%

#4 30% 65% #16 15% 32%

#200* 11% 15%

File details come from the government source that posted it. Updated .