804SEEDING AND SOIL SUPPLEMENTS

804.1DESCRIPTION —This work is furnishing and placing of seed and soil supplements of the type

indicated, the application of herbicides, and mowing requirements. The following definitions apply:

tested during its period of growth to provide a source of high -quality ground cover and ensure genetic identity and purity. Seeds are certified by recognized certifying agencies that conform to the certification laws and regulations of Pennsylvania or other states. Certification identification is indicated on all seed lot tags or labels.

that can produce a normal plant under favorable conditions and is represented by a percentage of an identified seed quantity exclusive of hardseed.

period because the seed has not absorbed water due to an impermeable seed coat.

or after European colonization, that enhances wild spaces without becoming invasive.

all other seeds not of the seed type being analyzed as determined by inspection and testing reg ulations. PLS is often used where seed industry standards have not been established for minimum acceptable purity and germination limits.

percentage of an identified seed quantity or seed lot.

of the whole.

throughout for all seed quality factors stated on the lot label or are within allowed tolerances.

in excess of 5% of the whole.

yield, fruit, color, seed, or other identifying characteristics.

of Agriculture which includes the seed of prohibited and restricted noxious weeds.

804.2MATERIAL—The Department may require pretesting reports from the Pennsylvania Department of

Agriculture for verification of analysis and legality of labeling, in addition to control of materials, as specified in Section 106.

801, 802, and 803.

Materials Act of 1978, P.L. 15, No. 9, as amended; The Agricultural Liming Materials Rules and Regulations (Title 7-Part V); 7 PA Code, Chapter 108 for labeling requirements; and as follows:

• % Total oxides (total calcium oxide and magnesium oxide equivalent) according to (ASTM C25)

• % Calcium carbonate equivalent (% by weight) According to (ASTM C25)

• % Fineness (minimum % by weight) material passing No. 20 sieve 95 material passing No. 60 sieve 60 material passing No. 100 sieve 50

Furnish material having an Effective Neutralizing Value (ENV) of not less than 90 when calculated according to 7 PA Code Chapter 108 as follows:

• % by weight passing 20 mesh - % passing 60 mesh x 0.4 = (a) % by weight passing 60 mesh - % passing 100 mesh x 0.8 = (b) % by weight passing 100 mesh x 1.0 = (c)

• Minimum Calcium Carbonate Equivalent (CCE) = % by weight of calcium carbonate

• (a) + (b) + (c) x CCE divided by 100 = ENV

Plant Growth Substance Law, Act of December 1, 1977, P.L. 258, No. 86 (3P.S.68.2), as amended. See Table A for fertilizer formulation.

TABLE A Fertilizer Formulation by Seed Mix Type Seed Mix Category Formulation Rate of Application Turf grass (Formulas B, L, T) 10-20-20 140 lb./1000 yd2 Tree, shrub, & vine installations 20-10-5 and 16-8-12 N/A Native upland mixes (Formulas C, N, P, wildflower & slope enhancements) Determined by soil test, see Section 804.3(e)1 Determined by soil test, see Section 804.3(e)1 Native wetland mixes (Formulas R, W) Determined by soil test, see Section 804.3(e)1 Determined by soil test, see Section 804.3(e)1

Use dry formulations of 10- 20-20 analysis for seeded and sodded areas with turf Formulas B and L. Use dry formulations of 20 -10-5 and 16- 8-16 analysis -controlled release for tree, shrub, and vine type planting operations. Use other analysis as indicated. If a soil test is not available for Formulas C, N, P, R, W, Wildflower or Slope Enhancement, do not apply fertilizer. When submitting soil testing to a lab specify to the lab that the soil is for a native seeding. Incorporate the fertilizer into the soil at time of application.

Conditioner and Plant Growth Substance Law, Act of December 1, 1977, P.L. 258, No. 86 (3P.S.68.2) as amended. Use only on Formulas B, L, and T. Use dry formulations of either 38-0-0 ureaform, 32-0-0 to 38-0-0 sulfur coated urea, 31-0-0 IBDU, or another analysis as indicated and conform to the following requirements:

• 38-0-0 ureaform Total Nitrogen (TN) — 38.0% minimum Cold Water Insoluble Nitrogen (WIN) — 25.0% minimum Activity Index (AI) — 40.0% minimum Urea Nitrogen

— 3.5% minimum • 32-0-0 to 38-0-0 sulfur coated urea with a 7-day dissolution range of 20% to 30%

• 31-0-0 IBDU

— Coarse grade (28 mils to 98 mils) • Water Insoluble Nitrogen (WIN) — 27.0% minimum

of 2004, effective January 29, 2005, and amendments. Meet other applicable regulations of the Seed, Testing and Certification Programs of the Pennsylvania Department of Agriculture (PDA), Bureau of Plant Industry. Provide seeds that have been tested and approved for the specified seed formula’s purity, germination, and weed seed analysis limits and other applicable PDA rules for seed testing. Provide certified seed for all Kentucky Bluegrass, Perennial Ryegrass, Creeping Red Fescue, Chewings Fescue, and Hard Fescue varieties submitted for each seed formula. Provide premixed seed mixtures from a licensed seed distributor/seed mixing company located within the State and mixed under the supervision of the PDA for the designated Table B seed Formulas B, L, and

stapled to the outside of each seed bag or other container in a conspicuous place. Pressure sensitive labels may be used on paper or plastic containers . Purchase native seed mixtures from vendors with a Pennsylvania seed dealer’s license. Provide original seed tags from each bag to the Representative. Seed mixtures may also be mixed to project specifications at the project site for special seed formulas or mixtures not specified in Table A, if all specified seed species have been previously inspected, tested, and approved by PDA for the designated purit y, germination, weed seed limits, or pure live seed analysis. Mix the seed species to the designated formula or mixture specifications under Department supervision. Do not use seed from containers that have not been properly sealed. Do not use seed that has a sell- by date of more than 15 months from the date of the inspection test, exclusive of the month of the test. The Department may reject or request re-testing for any questionable seed delivered to the project.

one of the two nursery crops to use based on the planting season. Add in each of the other seeds listed at the designated rate.

of warm- season grasses, forbs, or wildflowers may be required to be provided in quantities based on specified pure live seed application rates. Application rates for the special seed formulas may vary. The PLS seed application rate is a method of adjusting the amount of seed required to compensate for low seed purity and low germination percentages. The normal amount of seed to be provided for each seed type is higher and based on each seed’s PLS analysis. Provide PLS seed calculation amounts based on the seed label for all designated PLS seed formula types for verification and approval before application. The specified PLS seeding rate for each seed type divided by the percentage PLS value of the proposed seed type will determine the amount of seed required to be provided for that seed type. Note: Seed with a purity of 85% and 70% germination rate would equal a PLS of 60% (85% x 70% divided by 100). A specified rate of 2.5 pounds/acre of PLS seed would therefore require 4.2 pounds quantity of seed to be provided for that seed type. The values for the seeding rates are based on pure live seed rates.

of a suitable carrier, containing a culture of nitrogen-fixing bacteria specific for the seed to be inoculated. Keep lids on containers when not in use to avoid contamination. Store containers at moderate temperature. Do not use inoculant after the expiration date shown on the container.

and according to PCID No. 1094 – Herbicides (Weed and Brush Control) issued by the Pennsylvania Department of General Services, Bureau of Purchases, Quality Assurance Division, for the appropriate type. Furnish herbicide in manufacturer’s labeled container as follows:

4-D Liquid Amine Salt Formulations (Dimethylamine) listed in PCID No. 1094, for controlling broadleaf weeds.

PCID No. 1094 for non-selective spot treatments. All herbicide label directions must be followed, do not use selective herbicides in areas seeded with Formula C, N, P, R, or W.

using hydroseeding procedures. When seeding native species, tackifier must not be greater than 1/2 inch thick.

TABLE B Seeding Requirements Formula and Species % By Weight Minimum % Max % Weed Seed Seeding Rate lb/1000 yd2 (lb/acre) Purity Germination Formula B Residential Mix 42.0 (210) Total Perennial Ryegrass mixture (Lolium perenne). A combination of improved certified varieties with No one variety exceeding 50% of the total Ryegrass component. 20 97 90 0.10 8.5 (42.5) Creeping Red Fescue or Chewings Fescue (Festuca rubra or ssp commutate) (Improved and Certified) 30 97 85 0.10 12.5 (62.5) Kentucky Bluegrass mixture (Poa pratensis). A combination of improved certified varieties with no one variety exceeding 50% of the total Bluegrass component. 50 97 80 0.15 21.0 (105) Formula C Conservation Mix * 12.0 (60) Total Nursery crops Oats (Avena sativa) (Spring) 50 95 90 0.10 6 (30) Cereal Rye (Secale cereale) (Fall) 50 95 90 0.10 6 (30) Permanent Species Little Bluestem (Schizachyrium scoparium) 10 80 70 0.2 1.2 (6) Showy Tick-trefoil (Desmodium canadense) 7.5 - - - 0.9 (4.5) Partridge Pea (Chamaecrista fasciculata (syn: Cassia fasciculata)) 13.33 - - - 1.6 (8) Smooth Blue Aster (Symphyotrichum laeva) 0.5 - - - 0.06 (0.3) Black-eyed Susan (Rudbeckia hirta) 3.67 80 60 0.2 0.44 (2.2) Purple Top (Tridens flavus) 2 - - - 0.24 (1.2) Big Bluestem (Andropogon gerardii) 10 - - - 1.2 (6) Canada Wildrye (Elymus canadensis) 3 85 70 0.2 0.36 (1.8)

Formula and Species % By Weight Minimum % Max % Weed Seed Seeding Rate lb/1000 yd2 (lb/acre) Purity Germination Formula L Clear Zone Mix 48.0 (240) Total Hard Fescue mixture (Festuca longifolia). A combination of improved certified varieties with no one variety exceeding 50% of the total Hard Fescue component 55 97 85 0.10 26.4 (132) Creeping Red Fescue (Festuca rubra) (Improved and Certified 35 97 85 0.10 16.8 (84) Annual Ryegrass (Lolium multiflorum) 10 95 90 0.10 4.8 (24) Formula N Conservation Mix * 8 (40.0) Total Nursery crops Oats (Avena sativa) (Spring) 75 97 85 0.10 6 (30) Cereal Rye (Secale cereale) (Fall) 75 97 85 0.10 6 (30) Permanent Species Purple Top (Tridens flavus) 2.5 80 70 0.20 0.2 (1.0) Little Bluestem (Schizachyrium scoparium) 6.25 85 70 0.20 0.5 (2.5) Canada Wildrye (Elymus canadensis) 1.25 85 70 0.20 0.1 (0.5) Switchgrass (Panicum virgatum) 0.625 80 60 0.20 0.05 (0.25) Indiangrass 0.625 80 60 0.20 0.05 (0.25) Roundseed Panicgrass (Panicum sphaerocarpum) 1.25 - - - 0.1 (0.5) Black-eyed Susan (Rudbeckia hirta) 4 80 60 0.20 0.32 (1.6) Ox-eye Sunflower (Heliopsis helianthoides) 2.5 - - - 0.2 (1.0) White Avens (Geum canadense) 0.25 - - - 0.02 (0.1) Common Milkweed (Asclepias syriaca) 0.75 - - - 0.06 (0.3) Partridge Pea (Chamaecrista fasciculata) 2.5 - - - 0.2 (1.0) Showy Tick-trefoil (Desmodium canadense) 2.5 - - - 0.2 (1.0) Formula P Pollinator Conservation Mix* 8 (40.0) Total Nursery crops Oats (Avena sativa) (Spring) 75 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) 75 97 85 0.1 6 (30) Permanent Species Little Bluestem (Schizachyrium scoparium) 3.75 85 70 0.2 0.3 (1.5) Switchgrass (Panicum virgatum) 1.25 80 60 0.2 0.1 (0.5) Black-eyed Susan (Rudbeckia hirta) 2.875 80 60 0.2 0.23 (1.15) Ox-eye Sunflower (Heliopsis helianthoides) 1.25 - - - 0.1 (0.5) Foxglove Beardtongue (Penstemon digitalis) 1.25 - - - 0.1 (0.5) Lanceleaf Coreopsis (Coreopsis lanceolata) 1.25 - - - 0.1 (0.5) Partridge Pea (Chamaecrista fasciculata) 0.95 - - - 0.076 (0.38) Dense Blazing Star (Liatris spicata) 0.25 - - 0.02 (0.1) Purple Coneflower (Echinacea purpurea) 0.75 - - - 0.06 (0.3) Wild Bergamot (Monarda fistulosa) 1.25 - - - 0.1 (0.5)

Formula and Species % By Weight Minimum % Max % Weed Seed Seeding Rate lb/1000 yd2 (lb/acre) Purity Germination Butterfly Milkweed (Asclepias tuberosa) 0.375 - - - 0.03 (0.15) Common Milkweed (Asclepias syriaca) 0.625 - - - 0.05 (0.25) Swamp Milkweed (Asclepias incarnata) 0.5 - - - 0.04 (0.2) Wild Senna (Senna hebecarpa) 0.5 - - - 0.04 (0.2) Showy Tick-trefoil (Desmodium canadense) 0.5 - - - 0.04 (0.2) Purple Top (Tridens flavus) 2.5 80 70 0.2 0.2 (1) Golden Alexander (Zizia aurea) 0.05 - - - 0.004 (0.02) Boneset (Eupatorium perfoliatum) 0.25 - - - 0.02 (0.1) Mistflower (Conoclinium coelestinum) 0.125 - - - 0.01 (0.05) Round-headed Bushclover (Lespedeza capitata) 0.25 - - - 0.02 (0.1) Sundrops (Oenothera fruitcosa) 0.125 - - - 0.01 (0.05) Round seeded Panicgrass (Dichanthelium sphaerocarpon) 1.25 - - - 0.1 (0.5) Narrow Leaved Mountain Mint (Pycanthemum tenuifolium) 0.25 - - - 0.02 (0.1) Ohio Spiderwort (Tradescantia ohiensis) 0.125 - - - 0.01 (0.05) Big Bluestem (Andropogon gerardii) 2.5 - - - 0.2 (1) Canada Wildrye (Elymus canadensis) 0.25 85 70 0.2 0.02 (0.1) Formula R Seasonally Flooded Conservation Mix * 9 (45) Total Nursery crops Oats (Avena sativa) (Spring) 66.67 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) 66.67 97 85 0.1 6 (30) Permanent Species Virginia Wildrye (Elymus virginicus) 3.33 85 70 0.2 0.3 (1.50) Rice Cutgrass (Leersia oryzoides) 1.11 - - - 0.1 (0.5) Prairie Cordgrass (Spartina petinata) 2.22 - - - 0.2 (1.0) Lurid Sedge (Carex lurida) 2.22 - - - 0.2 (1.0) Woolgrass (Scirpus cyperinus) 3.33 - - - 0.3 (1.5) Softstem Bulrush (Schoenoplectus tabernaemontani) 3.33 - - - 0.3 (1.5) Deertongue (Panicum clandestinum) 6.11 - - - 0.55 (2.75) Soft Rush (Juncus effusus) 3.33 - - - 0.3 (1.5) Redtop Panicgrass (Panicum rigidulum) 8.33 - - - 0.75 (3.75) Formula T Temporary Grass Mix 6 (30) Total Oats (Avena sativa) (Spring) 100 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) 100 97 85 0.1 6 (30) Formula W Wetland Conservation Mix* 9 (45) Total Nursery crops Oats (Avena sativa) (Spring) 66.67 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) 66.67 97 85 0.1 6 (30) Permanent Species Fox Sedge (Carex vulpinoidea) 3.33 - - - 0.3 (1.5) Riverbank Wildrye (Elymus riparius) 1.67 85 70 0.2 0.15 (0.75) Prairie Cordgrass (Spartina pectinata) 1.11 - - - 0.1 (0.5) Lurid Sedge (Carex lurida) 1.67 - - - 0.15 (0.75) Soft Rush (Juncus effusus) 3.33 - - - 0.3 (1.5) Blue Vervain (Verbena hastata) 5 - - - 0.45 (2.25) Swamp Milkweed (Asclepias incarnata) 1 - - - 0.09 (0.45)

Formula and Species % By Weight Minimum % Max % Weed Seed Seeding Rate lb/1000 yd2 (lb/acre Purity Germination Sneezeweed (Helenium autumnale) 1.67 - - - 0.15 (0.75) Allegheny Monkeyflower (Mimulus ringens) 0.33 - - - 0.03 (0.15) Nodding Bur Marigold (Bidens cernua) 1.67 - - - 0.15 (0.75) Seedbox (Ludwigia alternifolia) 2.67 - - - 0.24 (1.2) Boneset (Eupatorium perfoliatum) 1.67 - - - 0.15 (0.75) Northern Blue Flag (Iris versicolor) 1.11 - - - 0.1 (0.5) Fowl Bluegrass (Poa palustris) 4.44 - - - 0.4 (2.0) Green Bulrush (Scirpus atrovirens) 2.67 0.24 (1.2) Wildflower Enhancement Mix To be used as additives to Pollinator mix, or to enhance an established site. Total Varies Nursery crops (If necessary) Oats (Avena sativa) (Spring) Varies 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) Varies 97 85 0.1 6 (30) Permanent Species Foxglove Beardtongue (Penstemon digitalis) 0.5-1 - - - 0.01-0.02 (0.05-0.1) Showy Tick-trefoil (Desmodium canadense) 0.5-2 - - - 0.01-0.04 (0.05-0.2) Common Milkweed (Asclepias syriaca) 0.5-2 - - - 0.01-0.04 (0.05-0.2) Wild Bergamot (Monarda fistulosa) 0.5-2 - - - 0.01-0.04 (0.05-0.2) Ox-eye Sunflower (Heliopsis helianthoides) 0.5-1 - - - 0.01-0.02 (0.05-0.1) Thin Leaved Mountain Mint (Pycnathemum tenuifolium) 0.1- 0.5 - - - 0.002-0.01 (0.01-0.05) Black-eyed Susan (Rudbeckia hirta) 0.5-1 - - - 0.01-0.02 (0.05-0.1) False Yellow Indigo (Baptisia tinctoria) 0.3- 0.5 - - - 0.006-0.01 (0.03-0.05) Dense Blazing Star (Liatris spicata) 0.5-5 - - - 0.01-0.1 (0.05- 0.5) Slope Enhancement Mix To be used as additives to Formula C, or to enhance an established site. Total Varies Nursery crops (If necessary) Oats (Avena sativa) (Spring) Varies 97 85 0.1 6 (30) Cereal Rye (Secale cereale) (Fall) Varies 97 85 0.1 6 (30) Permanent Species Poverty Oatgrass (Danthonia spicata) 1 - - - 0.06 (0.3) Porcupine Grass (Hesperostipa spartea) 2 - - - 0.12 (0.6) Sand Dropseed (Sporobolus cryptandrus) 0.5-5 - - - 0.03-0.3 (0.15- 1.5) Rough Dropseed (Sporobolus asper (S. compositus)) 3-15 - - - 0.18-0.9 (0.9- 4.5) FormulaS Special Seed Mix As indicated * If a species is unavailable in this mix, substitute by increasing the percentage of other items in the mix.

faster and sustained long-term plant growth. BSAs typically consist of organic material and nutrient sources combined with soil building, biostimulant, and stabilizing components. Use a BSA to promote plant growth and seed germination if the Representative determines the soil to be visually deficient in soil organic matter or bioactivity. Provide a manufactured BSA blend according to Table C and Table D.

Table C BSA Composition Requirements Type of Component Component Materials Organic material components consist of a combination of two or more components for a minimum of 85% by weight of the BSA composition. Wood Bark Straw Flax Peat Mushroom manure Compost Sphagnum moss Other approved organic matter. Soil building and biostimulant components consist of a combination of four or more components for a maximum of 15% by weight of the BSA composition. All components of a BSA must be pre-packaged by the manufacturer. Do not add chemical additives to BSA except fertilizer, soil neutralizers, and biostimulant materials. Biochar Humic Acid Porous Ceramics Endomycorrhizae Seaweed Extract Growth Stimulants Beneficial Microorganisms Cross-linked Polysaccharide Biopolymers Other approved soil building or biostimulant materials.

Table D BSA Properties BSA Property Test Method Desired Results Color Visual Inspection Application area to be a contrasting color without staining concrete or painted surfaces Organic Matter ASTM D586 85% minimum Acute Toxicity (Ecotoxicity) EPA Test Method 2021.0 OR EPA Test Method 2002.0 Non-toxic pH ASTM D1293 5.0 – 8.0 C:N Ratio ASTM E1508 & EPA Method 1687 10:1 minimum 100:1 maximum Water Holding Capacity ASTM D7367 400% minimum Moisture Content ASTM D2974 10% minimum 50% maximum Vegetation Establishment ASTM D7322 400% minimum

Additional seed, fertilizer, or other soil amendments may be needed to mix with or be used in conjunction with BSA as determined by soil testing or required according to the manufacturer’s recommendation.

804.3CONSTRUCTION—

indicated. Spread seeds within the following dates, or as otherwise indicated or directed.

• Formula B, L, and T — March 15 to June 1 — August 1 to October 15

• Formula C, N, W, R, P, Slope, and Wildflower Enhancements — Nursery crops Portion: — Anytime — Native Portion:

• FormulaS — As indicated

Extend seeding dates where project conditions warrant. Apply full treatment or apply only 50% of the permanent seeding and soil supplements and apply the remaining 50% within the next seeding dates , as directed in writing. Use tillage and soil supplements before permanent seeding on topsoiled areas, where temporary seeding or mulching has been applied. Apply permanent seed and/or soil supplements after tilling on topsoiled areas, where temporary seeding or mulching has been applied.

disking, harrowing, or other acceptable methods until the tillage is satisfactory. On untopsoiled areas, 3:1 and flatter, till only as directed. Also, till or scarify areas if the surface is glazed or crusted. Correct surface irregularities by filling depressions and leveling rough or uneven areas. Remove metal objects, stones larger than 2 inches in any dimension, and other debris or objects deemed detrimental to maintenance operations.

soil testing. Document bulk delivery as specified in Section 804.2(a)2. Blend the initial soil supplements into the soil at least 2 inches, on topsoiled areas, by raking, disking, harrowing, or other acceptable methods. Blend the supplements into the soil during tillage operations. Supplements must not be added when seeding Formulas C, N, W, R, P, Slope and Wildflower Enhancement seeded areas unless indicated by soil test. Inform lab performing test that sample is for native seeding. If nitrogen is indicated as low by soil tests, apply nitrogen as indicated, do not exceed 4.5 pounds per 1,000 square yards of nitrogen in application. Apply slow-release nitrogen fertilizer to the surface of Formula B, L, and T seeded areas before project completion. Apply soil supplements as follows, unless otherwise indicated:

• Pulverized Agricultural Limestone

— 800 lb/1000 yd2 • 10-20-20 Analysis Commercial Fertilizer

— 140 lb/1000 yd2 • 38-0-0 Ureaform Fertilizer

— 50 lb/1000 yd2 Or

• 32-0-0 to 38-0-0 Sulfur Coated Urea Fertilizer

— 59 lb/1000 yd2 to 50 lb/1000 yd2 as directed Or

• 31-0-0 IBDU Fertilizer — 61 lb/1000 yd2

application. Apply BSAs using hydraulic seeding equipment. Mix seeds with BSA before hydraulic placement. Use a tackifier at a rate of 30 pounds per acre if recommended by the BSA manufacturer. Field mixing of BSA components is not allowed. Apply BSA at a rate of 3,500 to 5,000 pounds per acre depending on soil test results. Follow manufacturer’s installation recommendations.

804.3(e)1. Use the treatment recommended by the laboratory.

accredited testing facility. Report results to the Department and BSA manufacturer.

with proper cultures, according to the manufacturer’s directions. Protect inoculated seed from prolonged exposure to sunlight before sowing. Re-inoculate seed not sown within 24 hours. If using hydraulic seeders, use inoculant four times the manufacturer’s recommended rate. If inoculated seed is held in a slurry with fertilizers for more than 1 hour, re- inoculate or apply legumes separately.

aerial, hydraulic placement, broadcasting, drilling, or hand seeding methods. See Table E for seeding methods. Inspect seeding equipment and calibrate the equipment according to manufacturer recommendations to ensure the specified application rates. Periodically perform a check on the rate and uniformity of application, as directed. Before seed application of each designated seed formula, thoroughly clean- out equipment. Collect all non-applied seed derived from each clean-out event and remove as waste from the project.

TABLE E Seeding Methodology Project Area and Terrain Seed Mix Category Seeding Method Notes Roadside Flat, dry Turf grass (Formulas B, L, T) Grain Drill Seeder, Broadcast, Hydroseed i; ii; iii Roadside Flat, wet Turf grass (Formulas B, L, T) Hand-broadcast, Hydroseed i; ii Slope Dry Native upland mixes (Formulas C, N, P, wildflower & slope enhancements) Hydroseed i Fenceline Flat, dry Native upland mixes (Formulas C, N, P, wildflower enhancements) Native Drill Seeder, Broadcast, Aerial ii; iii Fenceline Flat, wet Native wetland mixes (Formulas R, W) Hand-broadcast, Aerial ii Ditch (within clear zone) Wet Native wetland mixes (Formulas R, W) Hydroseed i Ditch (beyond clear zone) Wet Native wetland mixes (Formulas R, W) Hydroseed, Hand-broadcast i; ii

before application to ensure the seed is mixed properly in the solution. Do not apply using a wood mulch solution. Apply the hydroseed mixture to a maximum depth of 1/2 inch.

ii. For broadcasting or hand seeding applications, divide the native seed mix into two or more batches to ensure the seed is evenly distributed. Apply in parallel, overlapping passes, using a carrier such as sand or the larger annual grass seeds as a visual aid, and spread the remaining batch(es) in a perpendicular direction. Use broadcast seeding equipment with an internal agitator and a flow gate that can be regulated to create a slow, steady flow. An inert carrier or b ulking agent can be used to provide more even distribution and provide a visual aid to the installer.

iii. For drill seeding applications, plant only when soil is sufficiently dry to prevent the sticking of seeds to the coulters, packer wheels, and other components. For native drill seeding keep seed separated by size/type until ready to plant, and loosely fill each seed box of the native drill seeder with the appropriate seed type. If ordering a pre-mixed native seed mix, instruct the vendor to separate small seeds with a tuft of hairs (chaff), and grain seeds into separate bags. The different types of seed must be added to the appropriate seed box within the native drill seeder. Adjust the planting depth to no

more than 1.5 times the small seed diameter, which for most wildflower seed mixes is no deeper than 1/4 inch. Periodically check to see that the seed is being dispersed at the correct depth and adjust, as necessary. Calibrate the seed drill according to the manufacturer recommendations. Operate the drill at less than 5 mph to ensure seeds are sown evenly and the equipment is not damaged. Periodically check the drill throughout the seed installation process to ensure the feeder tubes are flowing freely, seed is being deposited in the furrows, and that the equipment is functioning properly.

not more than 65 pounds per foot. If soil is wet or frozen, roll only when directed.

native seeding has occurred, do not broadcast broadleaf herbicide. The Representative will designate existing plants or groups of plants to be saved within these areas before herbicide application. If directed, more than one application may be required to control undesirable growth. Apply material with application personnel certified by the Department of Agriculture and with equipment specified in Section 108.05(c).

are subject to the results of official sampling and testing as specified before use and installation and the resultant establishment of the specified vegetation. Remove non-approved materials from the project.

supplement materials. Redress soil surfaces when directed. Perform reapplication of seed and soil supplements within the ne xt applicable seeding date if necessary or as directed. When directed, reseed areas damaged by herbicide applications and mowing operations. NOTE: Reseeded areas will also require the application of appropriate mulch as specified in Section 805.

establishment by desirable species exhibited in the area for the specified seed formula.

2.a Table B Seed Formulas.

• Areas seeded with Formulas B, L, or T from Table B that exhibit less than 70% surface area coverage with the specified germinated grasss eedlings after 90 days of growth may be rejected upon visual inspection.

• Areas seeded with Formulas C, N, P, W, R, Slope and Wildflower Enhancement that exhibit growth of less than 18-36 healthy seedlings/square yard, 36-72 seedlings if unhealthy growth, of perennial species after 120 days of growth may be rejected upon visual inspection.

2.b Special Seed Formulas. Seed mixtures not indicated in Table B may be rejected based on lack of the specified seed germination and growth of less than 9 seedlings/square yard after 120 days of growth determined by visual inspection. The seed germination and growth period is determined from the date of the seedling.

2.c Eroded Areas. Seeded areas exhibiting soil surface erosion rills or gullies deeper than 1-inch may be rejected upon visual inspection. Redress and reseed designated eroded areas with specified materials and application rates as directed.

the entire project has been completed. Mow as specified in Section 804.3(m). Control any noxious weed growth found within the right of way by herbicide spraying and cutting. These plants are defined according to the Pennsylvania Weed Control Act of 1982, P.L. 228, No. 74 and as amended by further legislation. Submit for approval a schedule of work and list of herbicide material to be used before starting this operation.

If a slope failure occurs on a slope previously completed and requires further excavation and redressing to reestablish the slope, reapply the seeding and soil supplement work as specified for the original slope.

equipment until the certificate of acceptance has been issued. Submit a proposed schedule of mowing operations that covers the length of the construction project for approval.

degree of mowing maintenance than lawn turf areas established with Formulas B and L. Three mowing cycles per year, scheduled between April and October, are anticipated for mowing roadside turf areas seeded with Formula L. The number of cycles may be adjusted based on the degree of turf establishment, project length, weather conditions, or other factors. Consult the District Roadside Manager for schedul e, safety requirements, and mowing equipment approvals. Schedule the first mowing cycle early in the growth flush period before all seed heads have emerged. Schedule the second mowing approximately 3 to 4 weeks after the first cut to remove the remaining seed heads. Schedule the last mowing cycle in the fall, as directed. Do not mow grass shorter than 4 inches to allow a low growing, competitive ground cover. Do not mow under the following conditions:

• When soil and grass blades are wet.

• During drought conditions, or during summer months when the temperatures are consistently over 90F, and when the grass exhibits dormancy.

• Within 7 days of any scheduled herbicide application or 7 days after a herbicide treatment.

mowing operations when grass seedlings reach a height of 4 inches. Continue mowing operations during the active growing season throughout the length of the project.

first year after seeding, up to 3 times in the second year after seeding, and spot mowing as needed in the third and fourth years after seeding.

• In the first growing season, once the vegetation reaches 16- 18 inches in height, mow to a height of 6-8 inches. Repeat throughout the growing season 3 times. Do not mow beyond September 15.

• In the second growing season, mow the vegetation to a height of 2-3 inches before March 15. When the vegetation reaches 16-18 inches in height, mow to a height of 6- 8 inches. To reduce shading caused by cut biomass, do not mow the entirety of a large site (greater than 1/2 acre) at one time. Repeat up to three times, or until weeds occupy less than 10% of the seeded area. If invasive weedy species become a concern, refer to PCID No. 1094 for spot herbicide treatments. Do not mow after September 15.

• After two years, never mow an entire large section of 1/2-acre or larger or a large number of small sections at one time. Breaking up the timing of such activities will increase the overall health of pollinators as well as other wildlife found in the region.

• Following the establishment phase, mow natural areas in the dormant season (November – March), further restrictions apply to native pollinator areas where management mowing is completed February to March to further reduce impacts on pollinators. After establishment, Formulas C, N, W, R, P, the Slope and the Wildflower Enhancements will be mowed once every three years during early spring or late fall. Set the mowing deck as low as possible and rem ove excess vegetation to promote growth. To reduce shading caused by cut biomass, stagger mowing years between sites, and do not mow the entirety of a large site (greater than ½ acre) at one time.

804.4MEASUREMENTS AND PAYMENT—

Measured by the number of pounds of seed or actual PLS rated seed utilized in the work for designated seed formula and soil supplement applications. Do not use bulk weight of PLS rated seed packages for seed payment. The Department will pay for reseeding and reapplying soil supplements on slopes that fail because of weather conditions as specified in Section 804.3( l), at the contract unit price, in addition to the original accepted application of seeding and soil supplements. The Department will not pay for reseeding and reapplying soil supplements on seeded areas that are rejected because of failure of seed germination and growth as specified in Section 804.3(k). When indicated, the cost of the mulch will be incidental to the seeding and soil supplements item of work and will not be paid for separately. Use of a tackifier will be incidental to seeding and soil supplements.

Measured by the number of pounds of seed or actual PLS rated seed utilized in the work for the designated seed formula. Do not use bulk weight of PLS rated seed packages for seed payment. The Department will pay for reseeding on slopes that fail because of weather conditions as specified in Section 804.3(l) at the contract unit price, in addition to the original accepted application of seeding. The Department will not pay for reseeding on seeded areas that are rejected because of failure of seed germination and growth as specified in Section 804.3(k). When indicated, the cost of the mulch will be incidental to the seeding item of work and will not be paid for separately.

For the type indicate

The proposal will include an item and a predetermined amount of money for Biotic Soil Amendment. The contract item will have a unit of measure of Dollar, a unit price of $1.00, and a quantity equal to the predetermined amount. Because of the contingent or unpredictable nature of the work to be performed, the provisions of Section

110.02(d) are not applicable to these items

Measured and paid for, under the Biotic Soil Amendment item, as follows:

applicable, agreement is also required with FHWA.

The proposal will include an item and a predetermined amount of money for Soil Testing. The contract item will have a unit of measure of Dollar, a unit price of $1.00, and a quantity equal to the predetermined amount. Because of the contingent or unpredictable nature of the work to be performed, the provisions of Section

(d) are not applicable to these items

Measured and paid for, under the Soil Testing item, as follows:

applicable, agreement is also required with FHWA.