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COMPOST & PENNDOT . PROP Organics Council Centre County Solid Waste Authority Wednesday, December 10, 2003. Purpose of SRP.

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PROP Organics Council

Centre County Solid Waste Authority

Wednesday, December 10, 2003

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Purpose of SRP

PENNDOT’s Strategic Environmental Management (SEM) Program Office has developed a Strategic Recycling Program (SRP) as a tool to systematically identify, evaluate and implement recycling opportunities throughout the Commonwealth.

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PADEP and PENNDOT SRP Memorandum of Understanding (MOU) consist of:

  • Establishing and implementing a waste reduction program for materials used in PENNDOT operations;

  • Continually reviewing and revising existing procedures and specifications;

  • Evaluating materials that may be recycled in transportation and civil engineering applications;

  • Give due consideration and preference to projects that use compost materials in land maintenance activities;

  • Employs procurement and contract bidding options encouraging recycled materials use.

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Strategic Recycling Program Five Key Focus

Research – To collect information on recycled materials, including the literature review process and the completion of laboratory, pilot and field scale studies, as warranted. The purpose is to identify and resolve data gaps associated with the use of recycled materials and to organize the supporting information for the development of recycled material specifications.

Specifications –To develop, obtain, and/or disseminate user guidelines, provisional special provisions and Publication 408 specifications at the Municipal, District and Statewide levels.

Projects – To identify, implement, evaluate, and monitor projects that use recycled materials. The overall objective is to successfully incorporate recycled materials in construction and maintenance projects, including post-construction monitoring phases.

Outreach –To communicate and disseminate the results and experiences of recycled materials projects to PENNDOT, Commonwealth agencies and the public using a variety of formats.

Contracting – To provide technical assistance to the Engineering Districts in developing and using purchase, service and/or construction contract mechanisms to specify or provide for recycled material use.

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SRP On the Road

PENNDOT District Tour June 2003

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Researching Recycled Products/Materials

  • Recycled Asphalt Pavement (RAP)

  • Scrap Tires

  • Crushed Glass

  • Fly Ash, Bottom Ash, MSWI Ash, Kiln Dust

  • Slag and Spent Foundry Sand

  • Compost (biosolids, spent mushroom soil, leaf compost)

  • Asphalt Shingles

  • Plastics

  • Aluminum

  • Reclaimed Portland Cement Concrete (RPCC)

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PENNDOT’s Construction


Specifications - Publication 408







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    • Sections 805.2 MATERIAL

    • (a) Mulches. Free from foreign material, coarse stems, mold, substances toxic to plant growth, and mature seed bearing stalks or roots of prohibited and noxious weeds, as defined by law.

  • 2.f Sewage Sludge Compost. A blend of secondary dewatered sewage sludge and wood chips, aerobically composted at a Pennsylvania Department of Environmental Protection, Bureau of Waste Management permitted site for at least 21 days and cured for 30 to 60 days to ensure pathogen destruction. Free of foreign material and substances toxic to plant growth, nonburning, weed free, screened, and conforming to the following requirements:

  • • Minimum of 50% organic matter (oven dry basis)

  • • Minimum of 100% water holding capacity

  • • Particle Size—10 mm to 80 mm (3/8 inch to 3 inches)

  • • pH—6.0 minimum

  • • Heavy metals and toxic compounds (based on sewage sludge content)


  • Cadmium 25 Lead 1000

  • Mercury 10 Chromium 1000

  • Nickel 200 Copper 1000

  • Zinc 2500 PCBs 3

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  • 2.h Spent Mushroom Soil Compost. Organic substrate used in mushroom production been steam sterilized, then composted for a minimum of 90 days in well-managed windrows, and surfaced and protected composting pad and blended with ground brush (yard waste), recycled composted bark. Conforms to the requirements specified in Section 808.2(g)4 except as follows:

  • 805.2(a)

  • • Minimum Organic Matter (Oven Dry Basis)—40%

  • • Moisture Content—60% maximum

  • • Particle Size—10 mm to 80 mm (3/8 inch to 3 inches)

  • • Soluble Salt Concentration—20 dS maximum

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    • Section (g) Soil Amendments

      • 3. Sewage Sludge Compost. A blend of composted sewage sludge and wood chips, conforming to the requirements specified in Section 805.2(a)2.f, except the maximum size particle is 10 mm (3/8 inch).

      • 4. Compost. Decomposed product derived from agricultural, food and yard organic matter source. Composted at a DEP, Bureau of Waste Management permitted site under industry standards and U.S. EPA regulations, to provide a stable, weed free, nontoxic, soil amendment with a non-objectionable odor, and conforming to the following requirements:

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    808.2(g) 808.2(g)

    • moisture content—35 to 55%

    • trace elements and heavy metals—meet U.S. EPA Part 503 Exceptional Quality Concentration Limits

    • particle size—pass 25 mm (1-inch) standard screen

    • pH—5.5 to 8.0

    • soluble salt concentration—3.0 dS maximum

    • man-made foreign matter—less than 1% by mass (weight)

    For plants requiring an acid soil, provide only compost that has not received the addition of liming agents or ash by-products and having a pH value ranging from 5.5 to 7.0.

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    The Use of Compost as an Erosion and Sediment Control


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    (a) Compost. Well-decomposed, stable, weed-free, organic compost meeting AASHTO Designation MP-9, Standard Specification for Compost for Erosion/Sediment Control (Filter Berms) and AASHTO Designation MP-10, Standard Specification for Compost for Erosion/Sediment Control (Compost Blankets) derived from a variety of feedstocks including agricultural, forestry, food or industrial residuals; bio-solids (treated sewage sludge); leaf and yard trimmings; manure; or tree wood. Material aerobically composted at a PADEP, Bureau of Waste Management permitted site and U.S. EPA CFR 503 Regulations. Product tests in accordance with U.S. Composting Council’s Test Methods for Examining of Composting and Compost (TMECC). Provide compost with the U.S. Composting Council’s Seal of Testing Program (STA) certification and STA product label with no objectionable odor or substances toxic to plants and having the following physical properties:

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    Pub 408 Draft Specifications for COMPOST FILTERSTOCKCompost Clearance Transmittal

    Section 866

    Compost Blanket

    Compost Filter Berm

    Compost Filtersock

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    TMECC Test Methodologies –


    Moisture content, dry mass (weight) basis 30% - 60%

    pH 5.5 to 8.5

    Soluble salt concentration (electrical conductivity) 5.0 dS/m maximum

    Man-made inert contaminants, dry mass (weight) basis less than 1%

    Organic matter content, dry mass (weight) basis 25% - 65%

    (compost to be seeded)

    Organic matter content, dry mass (weight) basis 25% - 80%

    (compost that will not be seeded)

    Compost Blanket:

    Particle size, % passing mesh size,

    dry mass (weight) basis

    material passing 75 mm (3 inch) 100

    material passing 25 mm (1 inch) 90 to 100

    material passing 19 mm (3/4 inch) 65 to 100

    material passing 6.4 mm (1/4 inch) 0 to 75

    150 mm (6 inch) maximum particle length

    Compost Filter Berm and Compost Filtersock:

    Particle size, % passing mesh size,

    dry mass (weight) basis

    material passing 75 mm (3 inch) 100

    material passing 50 mm (2 inch) 99

    material passing 9.5 mm (3/8 inch) 30 minimum – 75 maximum

    acceptable general particle sizes of 13 – 50 mm (1/2 – 2 inch)

    150 mm (6 inch) maximum particle length

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    Maintenance & Construction COMPOST

    • PENNDOT Does Not create MARKETS

    • PENNDOT develop Specifications

    • PENNDOT makes recommendations


    “as little as possible”

    PENNDOT on Maintenance

    Construction is done by PENNDOT’s contractors

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    Publication 35 - Approved Construction Materials: Bulletin 15

    Product Evaluation Qualifications (PEQ) or Product Evaluations (PE). PEQ’s are products meeting existing Publication 408(M) Specifications

    or Department purchasing specifications, while PE’s are products not covered by current Department Specifications or Standards.

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    DEER Composting 15

    Deer Composting

    Adam’s County

    The PENNDOT’s Bureau of Maintenance and Operations (BOMO)

    and Adam’s County team up to find a more efficient, economical,

    and environmentally friendly method for disposal of deer carcasses.

    PENNDOT’s Quality of Life Strategic Focus Area

    Roadside Beautification.

    Future Project Allentown

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    Mr. Al Rattie 15

    29 East Ridge Ave.

    Sellersville, PA  18960


    STA Program Managers

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    Engineering Applications Using 15

    Crushed Glass - A Glass Cullet Workshop

    December 4, 2003 at the Holiday Inn

    Harrisburg West in Mechanicsburg

    The purpose of this workshop was to share existing

    information and provide an open discussion on

    the successes and barriers to using crushed glass

    in transportation and other applications.

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    For More Information 15

    Kenneth J. Thornton, P.G., ChiefSEM Program Office –

    Chief Engineer's Office

    PENNDOTP.O. Box 2957Harrisburg, PA17105-2957(717) 783-3616

    Rocksroy Bailey, Recycling Coordinator SEM Program Office – PENNDOT

    Apex Environmental Inc.P.O. Box 2957Harrisburg, PA 17105-2957(717) 214-3748

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    For More Information 15


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