Am0001.pdf

Offers must acknowledge receipt of this amendment prior to the hour and date specified in the solicitation or as amended, by one of the following methods:

(a) By completing items 8 and 15, and returning or (c) By separate letter or electronic communication which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE

RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by letter or electronic communication, provided each letter or electronic communication makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

E. IMPORTANT: Contractor is not is required to sign this document and return copies to the issuing office.

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

2. AMENDMENT/MODIFICATION NUMBER 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQUISITION NUMBER 5. PROJECT NUMBER (If applicable)

7. ADMINISTERED BY (If other than Item 6) CODE

STANDARD FORM 30 (REV. 11/2016)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION NUMBER

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NUMBER

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

The above numbered solicitation is amended as set forth in Item 14. The hour and date specified for receipt of Offers is extended. is not extended.

12. ACCOUNTING AND APPROPRIATION DATA (If required) copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NUMBER AS DESCRIBED IN ITEM 14.

CHECK ONE A. THIS CHANGE ORDER IS ISSUED PURSUANT TO: (Specify authority) THE CHANGES SET FORTH IN ITEM 14 ARE MADE IN THE CONTRACT ORDER

NUMBER IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation data, etc.) SET FORTH IN ITEM 14, PURSUANT TO THE AUTHORITY OF FAR 43.103(b).

C. THIS SUPPLEMENTAL AGREEMENT IS ENTERED INTO PURSUANT TO AUTHORITY OF:

D. OTHER (Specify type of modification and authority)

Except as provided herein, all terms and conditions of the document referenced in Item 9A or 10A, as heretofore changed, remains unchanged and in full force and effect.

15C. DATE SIGNED

15A. NAME AND TITLE OF SIGNER (Type or print)

16C. DATE SIGNED

16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

14. DESCRIPTION OF AMENDMENT/MODIFICATION (Organized by UCF section headings, including solicitation/contract subject matter where feasible.)

PAGE OF PAGES

6. ISSUED BY CODE

8. NAME AND ADDRESS OF CONTRACTOR (Number, street, county, State and ZIP Code) (X)

CODE

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

16B. UNITED STATES OF AMERICA

(Signature of Contracting Officer)

Previous edition unusable

Amendment No. 0001

Ecosystem Restoration Project, Phase I, Cache la Poudre River, West Greeley, CO

See attached documentation for content of the amendment revisions

Date for receipt of Bids is 21 December 2017 at 2:00 pm

Government Point of Contact: Jaimie Zurek (402) 995-2668

U.S ARMY CORPS OF ENGINEERS, OMAHA DISTRICT

CONTRACTING OFFICE

1616 CAPITOL AVE.

OMAHA, NE 68102-4901

See Item 6

W9128F18B0001

12/12/2017

11/21/2017

12/12/2017

Am #0001 - 2 (Continuation of SF 30)

DEPARTMENT OF THE ARMY

Omaha District, Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

:NOTICE: Failure to acknowledge : Solicitation No. W9128F18B0001 :all amendments may cause rejec- :

:tion of the bid. See FAR : Date of Issue: 21 Nov 2017 :52.214-3 of Section 00 21 00 : Date of Opening: 21 Dec 2017

Amendment No. 0001 12 December 2017

SUBJECT: Amendment No. 0001 to Specifications and Drawings for Construction of Ecosystem Restoration Project, Phase I, Cache la Poudre River, West Greeley, CO Solicitation No. W9128F18B0001

TO: Prospective Bidders and Others Concerned

1. The specifications and drawings for subject project are hereby modified as follows (revise all specification indices, attachment lists, and drawing indices accordingly).

a. Specifications. (Descriptive Changes.)

(1) Cover and SF1442 Page 1 (Box 10), correct the title of the project to read “Ecosystem Restoration Project, Phase I, Cache la Poudre River, West Greeley, CO”

(2) Section 32 92 19 Page 11, delete paragraph “3.2.4 Hydromulching” in its entirety.

b. Specifications (New and/or Revised and Reissued). Delete and substitute or add specification pages as noted below. The substituted pages are revised and reissued with this amendment.

Pages Deleted Pages Substituted or Added

Section 32 92 27 WETLAND PLANTINGS Section 32 92 27 WETLAND PLANTINGS Section 32 92 28 TREES AND SHRUBS Section 32 92 28 TREES AND SHRUBS

c. Drawing (Not Reissued). The following drawing is revised as indicated below with latest revision date of 12 December 2017. This drawing is not reissued with this amendment.

(1) Cover, correct the title of the project to read “Ecosystem Restoration Project, Phase I, Cache la Poudre River, West Greeley, CO”.

d. Drawings (Reissued). The following drawings are revised with latest revision date of 12 December 2017, and reissued with this amendment.

(1) Sheets LP 101, LP 102, LP 103, LP 104, LP 105, LP 106, LP

502, LP 503 & LP 504.

Am #0001 - 3 (Continuation of SF 30)

2. This amendment is a part of the bidding papers and its receipt shall be acknowledged on the Standard Form 1442. All other conditions and requirements of the specifications remain unchanged. If the bids have been mailed prior to receiving this amendment, you will notify the office where bids are opened, in the specified manner, immediately of its receipt and of any changes in your bid occasioned thereby.

a. Hand-Carried Bids shall be delivered to the U.S. Army Corps of Engineers, Omaha District, Contracting Division, 1616 Capitol Avenue, Omaha, Nebraska 68102-4901.

b. Mailed Bids shall be addressed as noted in Item 8 on Page 00 10 00-1 of Standard Form 1442.

3. Bids will be received until 2:00 p.m., local time at place of bid opening, 12 December 2017.

Attachments:

Spec Pages listed in 1.b. above Dwgs. listed in 1.d. above

U.S. Army Engineer District, Omaha Corps of Engineers 1616 Capitol Avenue Omaha, Nebraska 68102-4901

12 December 2017

MFS/2184

Cache La Poudre River, Sec 206 Ecosystem Restor, West Greeley, CO CO12

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 92 27

WETLAND PLANTINGS

06/12

PART 1 GENERAL

1.1 SUMMARY

1.2 VERIFICATION OF DIMENSIONS

1.3 SUBMITTALS

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Plug Validation

2.1.2 Plugs

2.1.3 Species

PART 3 EXECUTION

3.1 PLANTING WETLAND HERBACEOUS PLUGS: GROUND PREPARATION

3.1.1 Preparation of Wetland Herbaceous Seeding and Plugs Ground

3.2 PLANTING OF WETLAND HERBACEOUS PLUGS

3.3 TIME OF PLANTING

3.4 WATERING

3.5 MAINTENANCE AND REPAIR (1 Year Establishment Period)

3.5.1 Annual Monitoring Plan and Report

3.5.2 Weed Management

3.6 REPLANTING

-- End of Section Table of Contents --

SECTION 32 92 27 Page 1 Am0001

SECTION 32 92 27

WETLAND PLANTINGS

06/12

PART 1 GENERAL

1.1 SUMMARY

This section covers the requirement for preparing, planting, and maintaining the Wetland Herbaceous Seeding and Plugs areas as shown on the drawings (polygons labeled as Wetland Herbaceous Seeding and Plugs). This section includes all labor, materials, equipment, and services necessary to prepare an approved planting plan, to prepare the ground surface, and furnish and plant plugs in accordance with the plans and specifications.

Plugs shall be planted in Wetland Herbaceous Seeding and Plugs polygons as shown on the plans.

1.2 VERIFICATION OF DIMENSIONS

The Contractor shall become familiar with all details of the work, verify all dimensions in the field, and shall advise the Contracting Officer or Contracting Officer's Representative of any discrepancy between the plans, specifications, and actual conditions before performing the work.

1.3 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-02 Shop Drawings

Plug Planting Method and Plan; G-DO

Prior to initiating planting of the plug stock, the Contractor shall submit a proposal indicating the recommended method of planting for approval. Included in the submittal shall be a planting plan at 1"=30' of all planting areas, showing the areas to be planted and the species of plugs to be planted. Plugs shall be inspected for healthy, viable growth material, in particular in the plug rootstock. Plugs containing less than 50% live material shall be rejected prior to installation.

SD-06 Test Reports

Field Tests

Prior to planting the plug stock, the Contractor shall submit a proposal indicating the recommended method of planting for approval.

SD-07 Certificates

Plug Listing

SECTION 32 92 27 Page 2

Prior to initiating planting operations, the Contractor shall supply a certified listing from the material supplier for the plugs to be used.

Tags; G-DO

The Contractor shall furnish the tag from each lot of plugs used if the plugs are not procured from native stands.

SD-11 Closeout Submittals

Plant Establishment Period

Calendar time period for the plant establishment period. When there is more than one establishment period, the boundaries of the planted areas covered for each period shall be described.

Maintenance Record

Maintenance work performed, quantity of plant losses, and replacements; and diagnosis of unhealthy plant material.

PART 2 PRODUCTS

2.1 MATERIALS

2.1.1 Plug Validation

The Contractor shall furnish the tag from plug sets. Each tag shall contain the following information:

a. Name and address of supplier.

b. Suppliers lot number for the plant species.

2.1.2 Plugs

Plugs shall be supplied as 10 cubic centimeter tubes. The plugs selected for planting within the Wetland Herbaceous Seeding and Plugs areas shall be procured from a local nursery, preferably within 100 miles of the project site, and/or from a local native source. All nursery raised Wetland Herbaceous Seeding and Plugs plantings shall be appropriately hardened off for outdoor planting conditions. Acceptable nurseries include, but not necessarily limited to:

AlpineEco Nursery 1127 Adams Street Denver, Colorado 80208

(303) 859-1475

OR

Aquatic and Wetland Company Heidi Windell, President/Owner

9999 WCR 25

Fort Lupton, CO 80621

(303) 442-4766 heidihynes@aquaticwetland.com aquaticandwetlandcompany@yahoo.com

SECTION 32 92 27 Page 3

OR

Brown Earth Company George C Brown 13700 Hwy 392 Greeley, CO 80631-9352

(970) 302-2538

OR

Colorado State Forest Service Nursery CSU-5060 Campus Delivery Fort Collins, CO 80523-5060

(970) 491-8250 CSFS_Trees@mail.colostate.edu

OR

Conservation Seeding & Restoration Inc.

3780 County Road 233 Rifle, Colorado 81650

(970) 625-4769

OR

High Plains Environmental Center Native Plant Nursery 1854 Piney River Drive Loveland, CO 80538

(970) 622-9676 Jim@Suburbitat.org

OR

Native Seeders Kate Graves, President 6324 County Road 1 Windsor, CO 80550

(970) 686-5121 www.nativeseeders.com kate@nativeseeders.com

OR

North Folk Native Plants (plant holding facility in Brighton, Co.)

P.O. Box 1115 116 Mustang Drive Driggs, Idaho 83422

(877) 444-6996

OR

Pawnee Buttes Seed Don Hijar, Owner PO Box 100 Greeley, CO 80632

(970) 356-7002 www.Pawneebuttesseed.com

SECTION 32 92 27 Page 4 info@pawneebuttesseed.com

OR

Sharp Bros Seed 101 E. 4th Street Greeley CO 80631

(970) 356-4710 www.buffalobrandseed.com

Other native nurseries or seed companies must be approved of by the Contracting Officer Representative prior to the purchase of the materials.

2.1.3 Species

Approved Species are listed in the plan drawings.

PART 3 EXECUTION

Best management practices shall be applied to all phases of the project.

3.1 PLANTING WETLAND HERBACEOUS PLUGS: GROUND PREPARATION

3.1.1 Preparation of Wetland Herbaceous Seeding and Plugs Ground

Before planting the plugs, the soil of the Wetland Herbaceous Seeding and Plugs floor shall be tilled to a depth of six inches by disking, harrowing, rototilling, or other approved operation. The surface of the Wetland Herbaceous Seeding and Plugs ground shall be graded to leave no more than plus or minus 2-inch surface relief. Roll and rake the surface to remove ridges and fill depressions as required to meet finish grades. Limit the grading to areas which can be transplanted immediately after grading. Any area impacted by wind or water erosion prior to planting shall be restored as previously defined. Areas eroded after planting shall be replanted to obtain an even growth throughout the Wetland Herbaceous Seeding and Plugs floor. Moisten prepared areas before planting if soil is dry. Water thoroughly and allow surface to dry before planting.

3.2 PLANTING OF WETLAND HERBACEOUS PLUGS

The Contractor shall reference the Planting Plan in the contract drawings and shall plant plugs in the areas labeled Wetland Herbaceous Seedign and Plugs. Planting of Wetland Herbaceous plugs shall be accomplished by transplanting of the 10 cubic inch plugs. The 10 cubic inch transplants shall be inserted into the soil to the depth of the root system up to the base of the plant. Roots should not be exposed above the soil surface.

The Wetland Herbaceous plugs (10 cubic inch containers) shall be planted at 3 foot centers throughout the Wetland Herbaceous Seeding and Plugs areas as delineated in the plans. Planting may be done with the use of a dibble planter or similar device. A plug location specific plan shall be submitted by the Contractor for approval by the Contracting Officer's Representative. It shall be the Contractors responsibility to inform the Contracting Officer's Representative of conditions which may prove detrimental to the survival of these plants and of any necessary grading modifications to the environment that may be necessary to address these factors.

SECTION 32 92 27 Page 5

3.3 TIME OF PLANTING

In order to maximize the growth potential of all plant species to be used in this project, Wetland Herbaceous Seeding and Plugs planting shall only be allowed during mid-June to mid-July after spring runoff. It is ideal for the plugs to be planted at a time where there are moist soil conditions, but without inundation/flooding conditions. It is the Contractor's responsibility to insure that construction activities allow for planting of the plants during this timeframe. The Contracting Officer's Representative should be contacted for approval of any proposed planting times outside these timeframes.

3.4 WATERING

The plugs shall be maintained in a viable condition and not allowed to dry out prior to and immediately after installation.

3.5 MAINTENANCE AND REPAIR (1 Year Establishment Period)

The planted areas shall be maintained and protected against damage until all work in the contract has been completed and accepted. If at any time prior to completion and acceptance of the contract work the planted areas are damaged by erosion, trespass, or other cause, the areas shall be repaired and replanted as originally specified at the Contractor's expense.

3.5.1 Annual Monitoring Plan and Report

A monitoring plan prepared by the Contractor will be required. The Contracting Officer's Representative will have success criteria. The Contractor shall submit an Annual Wetland Herbaceous Seeding and Plugs Monitoring Report to the Contracting Officer prior to September 1st of each year, which shall include a vegetation baseline before construction/planting begins and current condition of Wetland Herbaceous Seeding and Plugs vegetation including overall cover by native Wetlands Herbaceous Seeding and Plugs species and non-native species and shall be reviewed and approved by the Contracting Officer's Representative. Based on this report, corrective measures may need to be established and implemented. The Contractor will record physical conditions of planted/seeded areas in their As-Built Drawings.

3.5.2 Weed Management

Weed management will also be required during the 1 Year establishment period. Installed areas shall be kept free of noxious weeds and other undesired vegetation. When application of an herbicide becomes necessary to remove a noxious or problem weed, an herbicide treatment plan shall be submitted and coordinated with the installation pest management program.

Herbicide use must comply with the Weld County Public Works Weed Management Policies and Procedures (https://www.weldgov.com/departments/public_works/weed_management/). Weld County Public Works Weed Management Coordinator shall be the technical representative, and shall be present at all meetings concerning treatment measures for weed control and may be present during treatment application.

3.6 REPLANTING

Any areas which fail to show a uniform stand for any reason shall be replanted with the specified transplants until a viable stand is established. Final acceptance will not be made until eighty-five percent

SECTION 32 92 27 Page 6

(85%) of the transplanted area shows living vegetation. Retransplanting shall be repeated at the Contractor's Expense until final acceptance.

-- End of Section --

SECTION 32 92 27 Page 7

SECTION TABLE OF CONTENTS

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 92 28

TREES AND SHRUBS

06/12

PART 1 GENERAL

1.1 SUBMITTALS

1.2 SOURCE INSPECTIONS

1.3 DELIVERY, INSPECTION, STORAGE, AND HANDLING

1.3.1 Delivery Schedule

1.3.1.1 Plant Material Identification

1.3.1.2 Protection During Delivery

1.3.1.3 Herbicide Material

1.3.2 Inspection

1.3.3 Delivery and Storage

1.3.3.1 Delivery

1.3.3.2 Plant Material Storage

1.3.3.3 Other Material Storage

1.3.4 Handling

1.3.5 Time Limitation

1.4 WARRANTY

PART 2 PRODUCTS

2.1 PLANT MATERIAL

2.1.1 Plant Material Classification

2.1.2 Plant Schedule

2.1.2.1 Plant Species

2.1.3 Substitutions

2.1.4 Quality

2.1.5 Growing Conditions

2.1.6 Method of Shipment to Maintain Health of Root System

2.1.6.1 Container-Grown (C) Plant Material

2.1.7 Growth of Trunk and Crown

2.1.7.1 Deciduous Trees

2.1.7.2 Deciduous Shrubs

2.1.8 Plant Material Size

2.1.9 Plant Material Measurement

2.2 TOPSOIL

2.3 SOIL AMENDMENTS

2.3.1 Organic Material

2.3.1.1 Peat

2.3.1.2 Recycled Compost

2.4 MULCH

2.4.1 ORGANIC MULCH

2.4.1.1 Shredded Bark

2.4.1.2 Wood Chips and Ground Bark

2.5 GEOTEXTILE

2.6 WOOD STAKING MATERIAL

2.6.1 Bracing Stake

SECTION 32 92 28 Page 1

2.6.2 Wood Ground Stakes

2.7 METAL STAKING AND GUYING MATERIAL

2.7.1 Bracing Stakes

2.7.2 Metal Ground Stakes

2.7.3 Guying Material

2.7.4 Turnbuckle

2.8 PLASTIC GUYING MATERIAL

2.9 RUBBER GUYING MATERIAL

2.10 FLAG

2.11 MYCORRHIZAL FUNGI INOCULUM

2.12 WATER

2.13 HERBICIDE

PART 3 EXECUTION

3.1 INSTALLING PLANT MATERIAL TIME AND CONDITIONS

3.1.1 Deciduous Plant Material Time for Willow Cuttings

3.1.2 Site Conditions

3.2 SITE PREPARATION

3.2.1 Finished Grade, Topsoil and Underground Utilities

3.3 EXCAVATION

3.3.1 Obstructions Below Ground

3.3.2 Plant Pits

3.4 INSTALLATION

3.4.1 Planting Areas

3.4.2 Planting Rates and Spacing

3.4.3 Setting Plant Material

3.4.4 Adding Mycorrhizal Fungi Inoculum

3.4.5 Backfill Procedure

3.4.5.1 Container-Grown

3.4.6 Watering

3.4.7 Staking and Guying

3.4.7.1 Two Bracing Stakes

3.4.7.2 Three Ground Stakes

3.5 FINISHING

3.5.1 Tree Wrapping and Protection

3.5.1.1 Weed Control Barrier

3.5.2 Tree and Shrub Caging

3.6 MAINTENANCE DURING PLANTING OPERATION

3.7 APPLICATION OF HERBICIDE

3.7.1 Technical Representative

3.7.2 Application

3.8 RESTORATION AND CLEAN UP

3.8.1 Restoration

3.8.2 Clean Up

3.9 PLANT ESTABLISHMENT PERIOD

3.9.1 Commencement

3.9.2 Maintenance During Establishment Period

3.9.2.1 Watering Plant Material

3.9.2.2 Weeding

3.9.2.3 Herbicide Treatment

3.9.2.4 Plant Pit Settling

3.9.2.5 Maintenance Record

3.9.3 Unhealthy Plant Material

3.9.4 Replacement Plant Material

3.9.5 Annual Monitoring Report

-- End of Section Table of Contents --

SECTION 32 92 28 Page 2

SECTION 32 92 28

TREES AND SHRUBS

06/12

PART 1 GENERAL

1.1 SUBMITTALS

Government approval is required for submittals with a "G" designation;

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. Submit the following in accordance with Section 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Equipment

A listing of equipment to be used for the planting operation.

SD-02 Shop Drawings

Delivery Schedule

Delivery Schedule.

Planting Distribution Plan

See Planting Rates and Spacing, this spec.

Finished Grade, Topsoil and Underground Utilities

Finished grade status, location of underground utilities and facilities, and availability of topsoil from the stripping and stock piling operation.

SD-07 Certificates

Mycorrhizal Fungi Inoculum; G-AO

Plant Certificates; G-AO

Herbicide; G-AO

Prior to delivery of materials, certificates of compliance attesting that materials meet the specified requirements.

Certified copies of the material certificates shall include the following.

a. Plant Material: Classification, botanical name, common name, size, quantity by species, and location where grown.

b. Mycorrhizal Fungi Inoculum: Plant material treated.

c. Herbicide. EPA registration number and registered uses.

SECTION 32 92 28 Page 3

SD-10 Operation and Maintenance Data

Maintenance Instructions

Instruction for year-round care of installed plant material.

SD-11 Closeout Submittals

Plant Establishment Period

Calendar time period for the plant establishment period. When there is more than one establishment period, the boundaries of the planted areas covered for each period shall be described.

Maintenance Record

Maintenance work performed, quantity of plant losses, and replacements; and diagnosis of unhealthy plant material.

Annual Tree and Shrub Monitoring Report

Contractor shall complete a monitoring report by the end of the plant warranty period.

Application of Herbicide;G-AO

Herbicide treatment plan with sequence of treatment work with dates and times. The herbicide trade name, EPA registration number, chemical composition, formulation, concentration of original and diluted material, application rate of active ingredients, method of application, area treated, amount applied;

and the name and state license number of the state certified applicator shall be included. The plan shall comply with the City of Greeley and Weld County. An accurate record of the chemical(s), application rate and total quantity applied, location and time spent on specific project must be presented to the COR after application.

1.2 SOURCE INSPECTIONS

The nursery or source of plant material and the source of delivered topsoil shall be subject to inspection.

1.3 DELIVERY, INSPECTION, STORAGE, AND HANDLING

1.3.1 Delivery Schedule

A delivery schedule shall be provided at least 10 calendar days prior to the first day of delivery.

1.3.1.1 Plant Material Identification

Plant material shall be identified with attached, durable, waterproof labels and weather-resistant ink, stating the correct botanical plant name and size.

1.3.1.2 Protection During Delivery

Plant material shall be protected during delivery to prevent desiccation

SECTION 32 92 28 Page 4 and damage to the branches, trunk, root system, or earth ball. Branches shall be protected by tying-in. Exposed branches shall be covered during transport.

1.3.1.3 Herbicide Material

Herbicide material shall be delivered to the site in the original, unopened containers bearing legible labels indicating the Environmental Protection Agency (EPA) registration number and the manufacturer's registered uses.

1.3.2 Inspection

Plant material shall be well shaped, vigorous and healthy with a healthy, well branched root system, free from disease, harmful insects and insect eggs, sun-scald injury, disfigurement or abrasion. Plant material shall be checked for unauthorized substitution and to establish that it was nursery grown. Plant material showing desiccation, abrasion, sun-scald injury disfigurement, or unauthorized substitution shall be rejected. The plant material shall exhibit typical form of branch to height ratio; and meet the caliper and height measurements specified. Plant material that measures less than specified, or has been poled, topped off or headed back, shall be rejected. Container-grown plant material shall show new fibrous roots and the root mass shall contain its shape when removed from the container.

Plant material with broken or cracked balls; or broken containers shall be rejected. Plant material that is non-native, obtained from unknown sources, is of an ornamental variety, or otherwise does not meet the specifications herein will be rejected. Unacceptable material shall be removed from the job site and replaced with acceptable material.

1.3.3 Delivery and Storage

1.3.3.1 Delivery

A delivery schedule shall be provided at least 10 calendar days prior to the first day of delivery.

Deliver plants after preparations for planting have been completed, and install immediately. If planting is delayed more than six hours after delivery, set plants and trees in their appropriate aspect (sun, filtered sun, or shade), protect from weather and mechanical damage, and keep roots moist.

1.3.3.2 Plant Material Storage

Plant material not installed on the day of arrival at the site shall be stored and protected in designated areas. Plant material shall not be stored longer than 10 days. Plant material shall be protected from direct exposure to wind and sun. Any bare-root plant material shall be heeled-in.

All plant material roots shall be kept in a moist condition to maintain vigor until installed.

1.3.3.3 Other Material Storage

Storage of other material shall be in designated areas.

1.3.4 Handling

Plant material shall not be injured in handling. Plant material shall not be handled by the trunk or stems. Materials shall not be dropped from

SECTION 32 92 28 Page 5 vehicles. Handle planting stock by root ball or planting container.

1.3.5 Time Limitation

Except for container-grown plant material, the time limitation from digging to installing plant material shall be a maximum 90 days.

1.4 WARRANTY

Furnished plant material shall have a warranty for plant growth to be in a vigorous growing condition for a minimum of a 1 Year establishment period.

When plant material is determined to be unhealthy in accordance with paragraph PLANT ESTABLISHMENT PERIOD, it shall be replaced once under this warranty.

PART 2 PRODUCTS

2.1 PLANT MATERIAL

2.1.1 Plant Material Classification

The plant material shall be nursery grown stock conforming to ANLA ANSI/ANLA Z60.1 and shall be the species specified. Non-native or ornamental varieties shall not be accepted.

2.1.2 Plant Schedule

The plant schedule shall provide botanical names as included in one or more of the publications listed under "Nomenclature" in ANLA ANSI/ANLA Z60.1.

2.1.2.1 Plant Species

The contractor shall provide the tree and shrub species described in the attached species list. The contractor shall provide a quantity of each species sufficient to plant the specified planting areas, at the rates specified in the attached species list.

2.1.3 Substitutions

Substitutions will not be permitted without written request and approval from the Contracting Officer's Representative. Any substitution must be a native species that occurs naturally in the Cache La Poudre River basin and surrounding drainages. Execution of a contract shall be evidence that the Contractor has made successful procurement arrangements for all plant materials as specified.

2.1.4 Quality

Well shaped, well grown, vigorous plant material having healthy and well branched root systems in accordance with ANLA ANSI/ANLA Z60.1 shall be provided. Plant material shall be provided free from disease, harmful insects and insect eggs, sun-scald injury, disfigurement and abrasion.

Plant material shall be free of shock or damage to branches, trunk, or root systems, which may occur from the digging and preparation for shipment, method of shipment, or shipment.

2.1.5 Growing Conditions

Plant material shall be native to the growing conditions of the project

SECTION 32 92 28 Page 6 site. Plant material shall be State of Colorado grown under climatic conditions similar to those at the project site.

2.1.6 Method of Shipment to Maintain Health of Root System

2.1.6.1 Container-Grown (C) Plant Material

Container size shall be in accordance with those indicated and ANLA ANSI/ANLA Z60.1. Plant material shall be grown in a container over a duration of time for new fibrous roots to have developed and for the root mass to retain its shape and hold together when removed from the container (12 months). Container-grown plant material shall be inoculated with mycorrhizal fungi during germination in the nursery. The container shall be sufficiently rigid to hold ball shape and protect root mass during shipping.

2.1.7 Growth of Trunk and Crown

2.1.7.1 Deciduous Trees

Deciduous Trees refers to all trees planted in the Forested polygons on the drawings. A height to caliper relationship shall be provided in accordance with ANLA ANSI/ANLA Z60.1. Height of branching shall bear a relationship to the size and species of tree specified and with the crown in good balance with the trunk. The trees shall not be "poled" or the leader removed.

a. Single stem: The trunk shall be reasonably straight and symmetrical with crown and have a persistent main leader.

b. Multi-stem: All countable stems, in aggregate, shall average the size specified. To be considered a stem, there shall be no division of the trunk which branches more than 6 inches from ground level.

2.1.7.2 Deciduous Shrubs

Deciduous Shrubs refers to both Wetland Scrub-Shrub with Wetland Scrub-Shrub Seeding and Upland Shrubs with Upland Herbaceous Seeding polygons on the drawings. Deciduous shrubs shall have the height and number of primary stems recommended by ANLA ANSI/ANLA Z60.1. Acceptable plant material shall be well shaped, with sufficient well-spaced side branches, and recognized by the trade as typical for the species grown in the region of the project.

2.1.8 Plant Material Size

Plant material shall be furnished in sizes indicated. Plant material larger in size than specified may be provided at no additional cost to the Government and must be approved by the Contracting Officer's Representative.

2.1.9 Plant Material Measurement

Plant material measurements shall be in accordance with ANLA ANSI/ANLA Z60.1.

2.2 TOPSOIL

Topsoil shall be as defined in ASTM D 5268. When available, the topsoil shall be the existing surface soil that has been treated with an herbicide as described in Section 31 11 00 CLEARING AND GRUBBING, and has been stripped and stockpiled onsite in accordance with Section 31 00 00 EARTHWORK. When additional topsoil is required beyond the available topsoil

SECTION 32 92 28 Page 7 from the stripping operation, topsoil shall be delivered and amended as recommended by the soil test for the plant material specified. Topsoil shall be free from slag, cinders, stones, lumps of soil, sticks, roots, trash or other material over a minimum 1-1/2 inch diameter. Topsoil shall be free from viable plants and plant parts.

2.3 SOIL AMENDMENTS

Soil amendments shall consist of organic material and soil conditioners meeting the following requirements. Vermiculite is not recommended.

Ammendments should be consistent with Section 32 92 19 2.3 SOIL AMMENDMENTS.

2.3.1 Organic Material

Organic material shall consist of either peat, decomposed wood derivatives, or recycled compost.

2.3.1.1 Peat

Peat shall be derived from Sphagnum peat and contain at least 95 percent organic matter determined by an oven dry weight basis and shall have a pH of 4 to 6.5.

2.3.1.2 Recycled Compost

Compost shall be a well decomposed, stable, weed free organic matter source. It shall be derived yard trimmings. The compost shall possess no objectionable odors and shall not resemble the raw material from which it was derived. The material shall not contain substances toxic to plants.

Gradation: The compost material shall pass through a 3/8 inch screen, possess a pH of 5.5 to 8.0, and have a moisture content between 35-55 percent by weight. The material shall not contain more than 1 percent or less by weight of man-made foreign matter. Compost shall be cleaned of plastic materials larger than 2 inches in length. Wood chips are not acceptable compost material.

2.4 MULCH

Mulch shall be free from weeds, mold, and other deleterious materials.

Mulch materials shall be native to the region.

2.4.1 ORGANIC MULCH

Organic mulch materials shall consist of shredded bark or wood chips.

Organic mulch shall be used for all individually planted trees in field areas.

2.4.1.1 Shredded Bark

Shredded cedar wood material shall be commercially available and treated to a rust color to retard the growth of mold and fungi. Shredded cedar mulch shall range in size from 0.5 inches to 1.5 inches long and 0.5 inches wide.

Material shall not include leaves or needles.

2.4.1.2 Wood Chips and Ground Bark

Locally chipped or ground material shall be treated to retard the growth of mold and fungi. Gradation: A maximum 2 inch wide by 4 inch long.

SECTION 32 92 28 Page 8

2.5 GEOTEXTILE

Geotextile shall be landscape fabric specifically made for underlaying mulch material and made specifically for use as a fabric around plant material. Nominal weight shall be a minimum 4 ounces per square yard.

Permeability rate shall be a minimum 0.04 inch per second.

2.6 WOOD STAKING MATERIAL

Wood stakes shall be hardwood or fir; rough sawn; free from knots, rot, cross grain, or other defects that would impair their strength. Following the first two growing seasons, the stakes shall be removed if the tree/ shrub growth is rigorous enough that such support would not be needed.

2.6.1 Bracing Stake

Wood bracing stakes shall be a minimum 2 x 2 inch square and a minimum 8 feet long with a point at one end. Stake shall be set without damaging root ball.

2.6.2 Wood Ground Stakes

Wood ground stakes shall be a minimum of 2 x 2 inch square and a minimum 3 feet long with a point at one end.

2.7 METAL STAKING AND GUYING MATERIAL

Metal shall be steel or aluminum made for holding plant material in place.

2.7.1 Bracing Stakes

Metal bracing stakes shall be a minimum 1 inch diameter and a minimum 8 feet long. Stake shall be set without damaging root ball.

2.7.2 Metal Ground Stakes

Metal ground stakes shall be a minimum 1/2 inch diameter and a minimum 3 feet long.

2.7.3 Guying Material

Metal guying material shall be a minimum 12 gauge wire. Multi-strand cable shall be woven wire. Guying material tensile strength shall conform to the size of tree to be held firmly in place.

2.7.4 Turnbuckle

Metal turnbuckles shall be galvanized or cadmium-plated-steel, and shall be a minimum 3 inches long with closed screw eyes on each end. Screw thread tensile strength shall conform to the size of tree to be held firmly in place.

2.8 PLASTIC GUYING MATERIAL

Plastic shall not be used for deadmen.

2.9 RUBBER GUYING MATERIAL

Rubber chafing guards, consisting of recycled material, shall be used to

SECTION 32 92 28 Page 9 protect tree trunks and branches when metal guying material is applied. The material shall be the same color throughout the project. Length shall be a minimum 1.5 times the circumference of the plant trunk at its base.

2.10 FLAG

Plastic flag material shall be used on guying material. It shall be a minimum 6 inches long. Tape color shall be consistent and visually complimentary to the entire project area. The tape color shall meet pedestrian visual safety requirements for day and night.

2.11 MYCORRHIZAL FUNGI INOCULUM

Mycorrhizal fungi inoculum shall be composed of multiple-fungus inoculum as recommended by the manufacturer for the plant material specified.

2.12 WATER

Unless otherwise directed, water shall be the responsibility of the Contractor.

2.13 HERBICIDE

The herbicide material shall be EPA registered and approved. Herbicide application must follow all Weld County Public Works Weed Management Policies and Procedures (https://www.weldgov.com/departments/public_works/weed_management). See Section 31 11 00 for more details.

PART 3 EXECUTION

3.1 INSTALLING PLANT MATERIAL TIME AND CONDITIONS

3.1.1 Deciduous Plant Material Time for Willow Cuttings

Deciduous plant material shall be installed from September 15 to April 30.

Refer to Willow Cuttings Pole Planting 32 92 29 for willow plantings.

3.1.2 Site Conditions

Planting operations shall be performed only during periods when beneficial results can be obtained. When drought, excessive moisture, frozen ground or other unsatisfactory conditions prevail, the work shall be stopped when directed by the Contracting Officer's Representative. When special conditions warrant a variance to the planting operations, proposed planting times shall be submitted for approval to the Contracting Officer's Representative.

3.2 SITE PREPARATION

3.2.1 Finished Grade, Topsoil and Underground Utilities

The Contractor shall verify that finished grades are as indicated on drawings, and that the grading and the compaction requirements have been completed in accordance with Section 31 00 00 EARTHWORK, prior to the commencement of the planting operation. The location of underground utilities and facilities in the area of the planting operation shall be verified. Damage to underground utilities and facilities shall be repaired at the Contractor's expense.

SECTION 32 92 28 Page 10

3.3 EXCAVATION

3.3.1 Obstructions Below Ground

When obstructions below ground affect the work, shop drawings showing proposed adjustments to plant material location, and planting method shall be submitted for approval.

3.3.2 Plant Pits

Plant pits for container plant material shall be dug to a depth equal to the height of the root ball as measured from the base of the ball to the base of the plant trunk. Plant pits shall be dug a minimum 50 percent wider than the ball or root system to allow for root expansion. The pit shall be constructed with sides sloping towards the base as a cone, to encourage well aerated soil to be available to the root system for favorable root growth. Cylindrical pits with vertical sides shall not be used.

3.4 INSTALLATION

3.4.1 Planting Areas

The contractor shall install the specified trees and shrubs in the

FORESTED, WETLAND SCRUB-SHRUB WITH WETLAND SCRUB-SHRUB SEEDING, UPAND SHRUB

WITH UPLAND HERBACEOUS SEEDING, AND WILLOWS areas indicated in the Planting Plan contract drawings. The species planted in each area shall be the species listed in the attached species list for that specific area.

3.4.2 Planting Rates and Spacing

The planting density shall be at the per-acre rate specified for each species. The spacing shall be random with occasional clustering of plants in appropriate groupings. Representative distributions may be seen in a reference stream reaches. Shrubs shall not be planted amid tree clusters where future shade would prevent long term vigor. Willow poles and containers should be planted and spaced as indicated in contract drawing CG

105. Contractor shall submit a planting distribution plan generally indicating the proposed random and clustered distribution, with polygons labeled with types of plants sufficing to indicate clusters.

3.4.3 Setting Plant Material

Plant material shall be set plumb and held in position until sufficient soil has been firmly placed around root system or ball. In relation to the surrounding grade, the plant material shall be set even with the grade at which it was grown.

3.4.4 Adding Mycorrhizal Fungi Inoculum

Mycorrhizal fungi inoculum shall be added as recommended by the manufacturer for the plant material specified.

3.4.5 Backfill Procedure

Prior to backfilling, all metal, wood, synthetic products, or treated burlap devices shall be removed from the root system avoiding damage to the root system. The backfill procedure shall remove air pockets from around the root system. Additional requirements are as follows.

SECTION 32 92 28 Page 11

3.4.5.1 Container-Grown

All twine, tags, and flagging shall be removed from the plant material. The plant material shall be carefully removed from containers that are not biodegradable and disposed of offsite. For plants that are noticeably rootbound, prior to setting the plant in the pit, a maximum 1/4 depth of the root mass, measured from the bottom, shall be spread apart to promote new root growth. For plant material in biodegradable containers the container shall be split prior to setting the plant with container. The plant material shall be planted with the root collar no more than 1/2-inch below the soil surface. Exceptions are willows and cottonwoods that can be planted down to the capillary fringe of the water table as long as the stems are at least two feet above the soil surface. The plant material shall be carefully placed in the planting pit and the planting pit shall be backfilled halfway with the native excavated soil around the roots and then watered to settle out air pockets. Once the water has drained, the remaining area of the planting pit shall be completely backfilled with soil and then watered again to remove any remaining air pockets. If necessary, additional soil shall be added to fill in any areas of excessive settling.

Once the plant is installed, a depression shall be made around the base of the plant to hold water.

3.4.6 Watering

Plant pits and plant beds shall be watered once during backfilling when half the backfill has been installed and immediately after backfilling is completed until completely saturated.

3.4.7 Staking and Guying

Staking will be required when trees are unstable or will not remain set due to their size, shape, or exposure to high wind velocity. Following the first two growing seasons, the stakes shall be removed if the tree/ shrub growth is rigorous enough that such support would not be needed.

3.4.7.1 Two Bracing Stakes

Deciduous trees shall be firmly anchored in place with 2 bracing stakes placed on opposite sides. Bracing stakes shall be driven vertically into firm ground and shall not injure the ball or root system. The tree shall be held firmly between the stakes with a double strand of guying material. The guying material shall be firmly anchored at a minimum 1/2 tree height and shall prevent girdling. Chafing guards shall be used when metal is the guying material.

3.4.7.2 Three Ground Stakes

Trees taller than 2 feet shall be held firmly in place with 3 bracing or ground stakes equidistantly around the tree. Ground stakes shall be avoided in areas to be mowed. Stakes shall be driven into firm ground outside the earth berm. The guying material shall be firmly anchored at a minimum 2/3 tree height and shall prevent girdling. Chafing guards shall be used when metal is the guying material.

SECTION 32 92 28 Page 12

3.5 FINISHING

3.5.1 Tree Wrapping and Protection

Wrapping material shall be horticulturally approved waterproof wrapping paper. Wrapping shall be applied from the base of the tree to the second branch and secured with tape. Wrapping shall be done in the fall months prior to freeze and removed in the spring. It shall be the Contractor's responsibility to ensure wrapping does not remain on the trees in the summer months. In addition, each tree shall be surrounded by a hoop of metal mesh or hardware cloth staked or anchored at ground level, 4 feet high and 1 foot in diameter, for protection from beavers.

3.5.1.1 Weed Control Barrier

Weed control barrier shall be installed around each planting to prevent competition with other plants and weeds. An approximately 3 foot square piece of weed control barrier shall be cut and secured with landscape staples around each tree and shrub.

3.5.2 Tree and Shrub Caging

In addition to beaver caging (3.5.1) all containerized trees and shrubs 5 gallon size and under shall be caged with hardware cloth to prevent small mammal herbivory. Hardware cloth shall be 1/8" to 1/4" size openings. Each planting shall be surrounded by a hoop of hardware cloth be cut to one foot (1') high and enough length to completely circle the base of the plant with space allowing for two to three years of growth. Caging shall be secured to the ground with landscape staples and hardware cloth shall be secured above ground with zip ties or cable ties.

3.6 MAINTENANCE DURING PLANTING OPERATION

Installed plant material shall be maintained in a healthy growing condition. Maintenance operations shall begin immediately after each plant is installed to prevent desiccation and shall continue until the plant establishment period ends. Installed areas shall be kept free of weeds, grass, and other undesired vegetation. The maintenance includes watering, adjusting settling, and maintaining staking materials. All staking materials shall be removed after two growing seasons or as directed by the Contracting Officer's Representative.

3.7 APPLICATION OF HERBICIDE

When application of an herbicide becomes necessary to remove a noxious or problem weed, an herbicide treatment plan shall be submitted and coordinated with the Contracting Officer's Representative. Herbicide use must comply with the Weld County Public Works Weed Management Policies and Procedures (https://www.weldgov.com/departments/public_works/weed_management/).

3.7.1 Technical Representative

The City of Greeley and Weld County Public Works Coordinator shall be the technical representative, and shall be present at all meetings concerning treatment measures for weed control. They may be present during treatment application.

SECTION 32 92 28 Page 13

3.7.2 Application

A state certified applicator shall apply required herbicide in accordance with EPA label restrictions and recommendations. Clothing and personal protective equipment shall be used as specified on the herbicide label. A closed system is recommended as it prevents the herbicide from coming into contact with the applicator or other persons. Filling hoses shall be fitted with a backflow preventer meeting local plumbing codes or standards.

Overflow shall be prevented during the filling operation. Prior to each day of use, the equipment used for applying herbicide shall be inspected for leaks, clogging, wear, or damage. Any repairs are to be performed immediately. Contractor shall consult with Contracting Officer's Representative when wind speeds reach 7 mph or greater.

3.8 RESTORATION AND CLEAN UP

3.8.1 Restoration

Pavements and facilities that have been damaged from the planting operation shall be restored to original condition at the Contractor's expense.

3.8.2 Clean Up

Excess and waste material shall be removed from the installed area and shall be disposed offsite. Adjacent paved areas shall be cleared.

3.9 PLANT ESTABLISHMENT PERIOD

3.9.1 Commencement

Upon completion of the last day of the planting operation, the plant establishment period for maintaining installed plant material in a healthy growing condition shall commence and shall be in effect for the remaining contract time period, not to exceed a 1 Year establishment period. Written calendar time period shall be furnished for the plant establishment period.

When there is more than one plant establishment period, the boundaries of the planted area covered for each period shall be described. The plant establishment period shall be coordinated with Sections 32 92 19 SEEDING.

The plant establishment period shall be modified for inclement weather shut down periods, or for separate completion dates for areas.

3.9.2 Maintenance During Establishment Period

Maintenance of plant material shall include straightening plant material straightening stakes; tightening guying material; correcting girdling;

maintaining plant material labels; watering; managing weeds, insects and disease; post-fertilization; and removing and replacing unhealthy plants.

Those species shown on the Colorado Noxious Weed Inventory list-A shall be 100% eradicated. Those species shown on list-B shall be no more than 10% of the total cover in the planting area. The list can be found at http://www.colorado.gov/cs/Satellite/Agriculture-Main/CDAG/1174084048733

3.9.2.1 Watering Plant Material

The plant material shall be watered as necessary to prevent desiccation and to maintain a satisfactory supply of moisture within the root zone. An adequate supply of moisture is estimated to be the equivalent of 1 inch absorbed water per week from May to September, delivered in the form of rain or augmented by watering. Run-off, puddling and wilting shall be

SECTION 32 92 28 Page 14 prevented. Unless otherwise directed, watering trucks shall not be driven over restored areas. Watering of other adjacent areas or existing plant material shall be prevented. All watering shall be recorded in the maintenance record and include time, date, and duration (volume) applied on the area covered.

3.9.2.2 Weeding

Grasses and weeds shall be controlled within the planting basins during the plant establishment period. The Contractor may be required to completely remove all grasses and weeds, including the root system, or may be allowed to use a weed whip to limit their growth and flowering. Installed plant material, cages, stakes, guywire, and weed control barrier shall not be disturbed. Any damaged material shall be replaced by the Contractor.

3.9.2.3 Herbicide Treatment

Treatment for disease or pest shall be in accordance with paragraph

APPLICATION OF HERBICIDE.

3.9.2.4 Plant Pit Settling

When settling occurs to the backfill soil additional backfill soil shall be added to the plant pit or plant bed until the backfill level is equal to the surrounding grade. Serious settling that affects the setting of the plant in relation to the maximum depth at which it was grown requires replanting in accordance with paragraph INSTALLATION.

3.9.2.5 Maintenance Record

A record shall be furnished describing the maintenance work performed, the quantity of plant losses, diagnosis of the plant loss, watering, and the quantity of replacements made on each site visit.

3.9.3 Unhealthy Plant Material

A tree shall be considered unhealthy or dead when the main leader has died back, or when more than 25 percent of the crown has…