32_90_00_Amendment_0003.pdf

Boardman Dam Removal and River Restoration

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 90 00

PLANTING

PART 1 GENERAL

1.1 SUMMARY

1.2 RELATED WORK

1.3 REFERENCES

1.4 DEFINITIONS

1.5 SUBMITTALS

1.6 QUALITY ASSURANCE

1.7 DELIVERY, STORAGE, AND HANDLING

PART 2 PRODUCTS

2.1 PLANT MATERIAL

2.2 AMENDMENTS

PART 3 EXECUTION

3.1 FIELD QUALITY CONTROL

3.2 SEEDING - FLOODPLAIN

3.3 SEEDING - UPLAND

-- End of Section Table of Contents --

SECTION 32 90 00 Page 1

SECTION 32 90 00

PLANTING

PART 1 GENERAL

1.1 SUMMARY

A. This Section includes the furnishing of all labor, equipment, and material to complete proper seeding for the Boardman Dam Removal and River Restoration project.

B. Seeding, hydro-seeding and mulching will be measured by the acre seeded to the nearest one-tenth of an acre.

C. Contractor should comply with the Invasive Species Management Plan for the Boardman River (AMEC, 2011)found at http://theboardman.org/archived-documents. The objectives of this document should be reviewed with all contractor staff prior to initiation of work activities.

D. This planting specification has been prepared in coordination with the Draft Tribal Traditional Ecological Knowledge Relative to the Boardman River Watershed (Andrews Cultural Resources, 2011) and the Little Traverse Bay Bands of Odawa Indians Native Plants Initiative (Pilette, 2009).

1.2 RELATED WORK

A. Section 31 23 00 - Earthwork

B. Section 31 40 00 - Slope Protection and Erosion Control

1.3 REFERENCES

AMEC, 2011

AMEC, 2011 Invasive Species Management Plan for the

Boardman River.(Refer to http://theboardman.org/archived-documents)

Andrews Cultural Resources

Andrews Andrews Cultural Resources, 2011, Draft Tribal Traditional Ecological Knowledge Relative to the Boardman River Watershed.

Little Traverse Bay Bands of Odawa Indians

Pilette, 2009 Little Traverse Bay Bands of Odawa Indians Native Plants Initiative.

1.4 DEFINITIONS

A. Native Species. Native species are plants that are indigenous to

SECTION 32 90 00 Page 2

Grand Traverse County, Michigan and are well adapted to the local habitat and climate. Native species selected for permanent vegetation are chosen based upon plants that would naturally occur in the restoration communities. Seed for restoration and seed used to produce plants for restoration will be harvested directly from wild, native stands or will be seed that was originally collected from native stands and put into production. All plant material (i.e., seed, plugs, rootstock, container-grown, etc.) used for permanent vegetation will have its source of origin within 250 miles of the restoration site.

B. Noxious Weeds. Noxious weeds are any plant recognized by the State of Michigan in the Michigan Seed Law (Act 329 of 1965) as prohibited or restricted noxious weeds. Seeds of prohibited noxious weeds are prohibited as contaminants in seed offered for sale. Prohibited noxious weeds include:

- Agropyron repens (aka Elytrigia repens) - quackgrass

- Ambrosia elatior - ragweed

- Berteora incana - hoary alyssum

- Brassica spp - mustards

- Cardaria draba - whitetop, hoary cress or perennial peppergrass

- Carduus acanthoides - plumeless thistle

- Carduus nutans - musk thistle

- Centaurea maculosa - spotted knapweed

- Centaurea picris - Russian knapweed

- Cirsium arvense - bull thistle

- Cirsium vulgare - Canada thistle

- Convolvulus arvensis - field bindweed

- Convolvulus sepium - hedge bindweed

- Cuscuta spp - dodder

- Cyperus esculentus, both seed and tubers - yellow nutsedge, chufa

- Euphorbia esula - leafy spurge

- Ipomea spp - morning glory

- Nasella trachoma - serrated tussock

- Rhus toxicodendron - poison ivy

- Solanum carolinense - horsenettle

- Sonchus arvensis - perennial sowthistle

- Sorghum halapense - Johnsongrass

- Toxicodendron vernix - poison sumac

- Tribulus terrestris - puncturevine

Seeds of restricted noxious weeds are restricted as contaminants in seed offered for sale with a general limit of one seed per 2,000 seeds offered for sale. Restricted noxious weeds include:

- Abutilon theophrasti - Velvetleaf

- Allium canadense - Wild onion

- Allium vineale - Wild garlic

- Avena fatua - Wild oat

- Barbarea vulgaris - Yellow rocket

- Berteroa incana - Hoary alyssum

- Brassica juncea - Indian mustard

- Brassica nigra - Black mustard

- Datura stramonium - Jimsonweed

- Daucus carota - Wild carrot

- Plantago lanceolata - Buckhorn plaintain

- Raphanus raphanistrum - Wild radish

- Rumex crispus - Curled dock

- Seteria faberii - Giant foxtail

- Sinapis arvensis - Charlock

- Solanum spp - Nightshade complex

SECTION 32 90 00 Page 3

- Thalspi arvense - Fanweed

- Xanthium strumarium - Cocklebur

C. Pure Live Seed (PLS). Pure live seed is the viable/sproutable seed of particular species. Therefore, when ordering one PLS pound of a given species, more than one bulk pound may be delivered to make up for any inert material (stems, hulls or seed that won't germinate). Pure Live Seed is defined by the formula:

PLS = (Percent Purity of the Seed x Germination Percentage)/100

1.5 SUBMITTALS

SD-03 Product Data A. Grower's Certification: A report from the grower indicating native plant species supplied and location of genetic origin (county and state of source material) for each native species supplied. Grower's certification shall be submitted to the COR at least ten (10) calendar days prior to initiation of seeding activities for review and approval. No seeding shall commence until the Grower's Certification submittal has been approved by the COR.

B. Seed Test: Test report for all seed to be used on the restoration site shall be submitted to the COR at least ten (10) calendar days prior to initiation of seeding activities. Seed tests shall be less than nine

(9) months old and shall indicate the Lot Number that can be traced to seed bag labels delivered to the restoration site. Seed test reports shall indicate purity, germination, and noxious weed seed content, and shall meet the PLS requirements as prescribed herein. No seeding shall commence until the Seed Test submittal has been approved by the COR.

1.6 QUALITY ASSURANCE

A. Field Supervision: Contractor shall maintain an experienced full-time field supervisor on the restoration site when work is in progress. Field supervisor shall be experienced in natural area restoration and shall have at least 5 years of successful experience in planting native grass and forb seed using hydro-seeding, native seed drill, and traditional broadcast methods.

B. Unless specified otherwise, seed shall meet the requirements for noxious weeds listed in Paragraph 1.4.A. of this specification, or otherwise specified in the Michigan Seed Law, as amended. In case of conflict, the more stringent criteria shall prevail. For weed species not listed in Paragraph 1.4.A. or in the Michigan Seed Law, as amended, seed should not contain in excess of one (1) percent of weed seed; zero (0) percent is preferred and the Contractor shall endeavor to meet this goal.

Sampling and testing of the seed and seed tag labeling requirements shall be done in accordance with the seed regulations for the State of Michigan (Michigan Seed Law, Act 329 of 1965, as amended) and with the Rules for Testing Seeds adopted by the Association of Official Seed Analysts (2010).

C. Substitutions: If specified seed or products are not commercially available, submit to Contracting Officer a proposal for use of an equivalent product.

D. Seeding Kickoff Meeting: At least two weeks prior to initiating

SECTION 32 90 00 Page 4 seeding work in the field, Contractor shall host a field meeting with the Government Representative at the restoration site to review required submittals and reports and to discuss methods and sequence of work.

1.7 DELIVERY, STORAGE, AND HANDLING

A. During all operations, seed and seed bags will be kept covered, dry, shaded and out of direct sunlight. Seeds will not be stored in locations or vehicles where the temperature will be in excess of 90°F.

PART 2 PRODUCTS

2.1 PLANT MATERIAL

A. Nurse Crop

1. Nurse crops are temporary crops consisting of an annual, non-competitive crop sown with the permanent vegetation. The nurse crop provides erosion control and reduces the risk of invasive weeds until the permanent vegetation becomes established. Nurse crop will consist of one of the following species depending on the site conditions and the time of seeding as provide in Table 1.

Table 1 Nurse Crop Botanical Name Common Name Bulk lbs/acre Avena sativa Spring oats Lolium multiflorum Annual rye

60 (1) 25 (2)

(1) Spring and Early Summer Seeding

(2) Late Summer and Fall Seeding

B. Native Seed

1. Native seed will be supplied on the basis of PLS. The seed will be from the most recent harvest [one (1) year old or less]. These seeds will be supplied as single species, partial seed mixes, or full seed mixes in separate bags. Seed mixes will be as specified in Tables 2 and 3, based on commercial availability, with minimum PLS percentage for each of the various groupings. The seed will contain no prohibited noxious weeds.

2. All native seed will be cleaned/threshed/screened to remove the fruiting bracts, scales, floral parts, awns, perigynia, and other non-seed debris to the maximum practicable extent. Seeds will be fresh, free of deleterious material and disease, and delivered to the site in the original, unopened bags showing a certified net weight, date of testing, supplier's name, and certified guarantee of analysis including the composition, PLS information, and percent weed seed.

Seed will be kept dry and unopened until needed for use. Damaged or faulty packages will not be used.

3. All native seed used for permanent vegetation will have its source of genetic origin within 250 miles of the restoration site.

Table 2 Floodplain Mix (8 PLS lbs/acre x approximately 10 acres) Botanical Name Common Name Indicator Percentage of Mix(by weight) Andropogon gerardii Big bluestem FAC- 15 Carex hystericina Porcupine sedge OBL 5 Carex vulpinoidea Fox sedge OBL 4 Elymus virginicus Virginia wild rye FACW- 30

SECTION 32 90 00 Page 5

Glyceria striata Fowl mana grass OBL 3 Leersia oryzoides Rice cut grass OBL 15 Panicum virgatum Switch grass FAC+ 15 Scirpus atrovirens Dark green rush OBL 2 Scirpus cyperinus Wool grass OBL 1 Scirpus validus Great bulrush OBL 3 Verbena hastata Blue vervain FAC 2 Aesclepis incarnata Swamp milkweed OBL 3 Carex stricta Tussock sedge OBL 2 Total 100

Table 3 Upland Mix (15 PLS lbs/acre x approximately 100 acres)

Botanical Name Common Name Indicator Percentage of Mix(by weight) Andropogon gerardii Big bluestem FAC- 20 Coreopsis lanceolata Coreopsis FACU 8 Elymus canadensis Canada wild rye FAC- 25 Panicum virgatum Switch grass FAC+ 10 Rudbeckia hirta Blk eyed Susan FACU 3 Schizachyrium sco-parium Little bluestem FACU 15 Sorghastrum nutans Indian grass FACU+ 10 Sporobolus cryptandrus Sand dropseed FACU- 4 Asclepias syriaca Common milkweed FACU- 3 Aster nova agliae New England aster FAC 2 Total 100

2.2 AMENDMENTS

A. Wood Slurry Mulch (Hydro Mulch)

1. Hydro mulch shall be fiber-processed from whole wood chips manufactured specifically for standard hydraulic mulching equipment.

Fiber shall not be produced from recycled material such as sawdust, paper, or cardboard.

2. Moisture content shall not exceed 10 percent, plus or minus 3 percent, as defined by the pulp and paper industry standards. Fiber shall have a water holding capacity of not less than 900 grams of water per 100 grams fiber.

3. Hydro mulch shall disperse into a uniform slurry when mixed with water and shall be nontoxic to plant life or animal life.

4. Hydro mulch shall contain a non-petroleum based tackifier and a green dye for visual monitoring during application, and shall not harm germination or plant growth.

PART 3 EXECUTION

3.1 FIELD QUALITY CONTROL

A. Seeded areas guarantee: Areas that do not meet seed success criteria (below) for native seed mix establishment on the July 1st following the Substantial Completion Date shall be re-seeded during the first available seeding period, as determined by the Owner. Seed success criteria assessment shall be done accordingly:

1. For seeding completed before July 1st, success criteria will be measured after July 1st of the year following completion.

2. For seeding completed after July 1st, success criteria will be measured after July 1st of the second year following completion.

SECTION 32 90 00 Page 6

B. Seeding success criteria: The Owner will conduct surveys to verify seeding success. Overall coverage will be the dominant criteria, not species assemblage. An area will be considered satisfactory if it meets the following criteria:

1. A minimum of 80 percent intended vegetative cover (noxious weeds and undesirable non-native species will not be considered to be intended vegetation);

2. Not more than 10% of the seeded area with bare spots larger than 1 square foot; and

3. Vegetation shall be in healthy condition.

3.2 SEEDING - FLOODPLAIN

A. Floodplain consists of areas below the historic pool of Boardman Pond immediately adjacent to the new river channel, between the edge of the channel and the toe of the transition slopes that lead up to the spoils piles and other surrounding areas. Floodplain includes the actively excavated riparian zone floodplain measured as 40-feet out from the top of bank on either side of the new river channel, when the two sides of the channel are added together.

B. Stake out Floodplain in the field and field verify with COR.

Contractor shall provide surveyed quantities (acres) of the Floodplain to the COR prior to seeding.

C. Seedbed shall be prepared using a spike-tooth harrow with finishing pulverizer in areas where soils are not compacted, or equivalent method that has previously been reviewed and approved by the COR. Compacted layers shall be disked in the top 6 inches of the soil profile and then firmed and smoothed using a roller harrow, culti-packer, or similar implement to firm and remove large clods. The final prepared seedbed shall not contain soil clods greater than 2 inches in diameter.

D. Contractor shall seed in accordance with Table 2 (Floodplain Mix) and using appropriate nurse crop in Table 1. Seeding shall occur within 24 hours of seedbed preparation and shall be performed using traditional broadcast methods (followed by harrowing) or using a culti-packer to achieve seed-to-soil contact. Native seed shall never be planted more than ¼ inch deep. No-till drilling may also be used as an alternative method.

E. Areas not accessible using the methods above may be hand broadcasted or hydro-seeded if previously reviewed and approved by the COR.

F. If hydro-seeding, Contractor shall mix nurse crop (Table 1),AND native seed (Table 2, Floodplain Mix)together with hydro-mulch in hydro-seeder tank and spray apply together in accordance with manufacturer recommendations. Hydro-seeding shall occur such that the entire mixture is evenly distributed across the entire Floodplain without bare spots. Wood slurry mulch (hydro-mulch) to be applied at a rate of 1500 lbs/acre.

G. Floodplain seeding shall occur between April 1st and December 1st unless proposed alternative timing for seeding is reviewed and approved by COR. No seeding shall occur when snow is on the ground.

H. Care of Seeded Areas During Construction - All seeded areas shall be protected and maintained throughout the construction of the project and

SECTION 32 90 00 Page 7 until the work is accepted. No construction traffic, except for maintenance, will be allowed over a seeded or planted area once the seed and erosion control measures have been completed. Foot traffic shall be minimized and workers shall travel along completed banks only in designated areas. Any damage to seeded areas caused by construction traffic or construction activities shall be repaired and re-seeded at no additional cost to the Government.

3.3 SEEDING - UPLAND

A. A. Upland consists of areas outside the Floodplain to the limits of disturbance, including the spoils piles. Stake out the Upland area to be seeded and field verify with COR. Contractor shall provide surveyed quantities (acres) of the Upland to the Government prior to seeding.

B. B. Except on steep slopes, seedbed shall be prepared using a spike-tooth harrow with finishing pulverizer in areas where soils are not compacted, or equivalent method that has previously been reviewed and approved by the COR. Compacted layers shall be disked in the top 6 inches of the soil profile and then firmed and smoothed using a roller harrow, culti-packer, or similar implement to firm and remove large clods. The final prepared seedbed shall not contain soil clods greater than 2 inches in diameter. On steep slopes, Mechanical seedbed preparation is not required, however, Contractor shall hand rake areas with deep ruts (4 inches or deeper) to provide a smooth uniform seedbed.

D. Contractor shall broadcast nurse crop (Table 1) and native seed (Table 3, Upland Mix) onto Upland. Seeding shall occur within 24 hours of seedbed preparation and shall be performed using traditional broadcast methods (followed by harrowing) or using a culti-packer to achieve seed-to-soil contact. Native seed shall never be planted more than ¼ inch deep. No-till drilling may also be used as an alternative method. On steep slopes, seeding shall be by manual walk-behind broadcaster or hand broadcasting methods. Seeding shall occur such that the entire mixture is evenly distributed across the entire Upland without bare spots.

E. If areas of Upland are inaccessible, Contractor may hydro-seed if previously reviewed and approved by the COR. Hydro-seeding shall be accomplished using a wood slurry mulch (hydro mulch) mixed with and native seed (Table 3) providing complete coverage at a rate of 2000 lbs/acre on the Upland.

F. Upland seeding shall occur between April 1st and October 10th unless proposed alternative timing for seeding is reviewed and approved by COR. No seeding shall occur when snow is on the ground.

F. Care of Seeded Areas During Construction - All seeded areas shall be protected and maintained throughout the construction of the project and until the work is accepted. No construction traffic, except for maintenance, will be allowed over a seeded or planted area once the seed and erosion control measures have been completed. Foot traffic shall be minimized and workers shall travel along completed banks only in designated areas. Any damage to seeded areas caused by construction traffic or construction activities shall be repaired and re-seeded at no additional cost to the Government.

-- End of Section --

SECTION 32 90 00 Page 8