W912DQ20B10530002 Amendment 0002.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

1. CONTRACT ID CODE

J

PAGE OF PAGES

1 4

2. AMENDMENT/MODIFICATION NO.

3. EFFECTIVE DATE

4-Jun-2020

4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY CODE W912DQ 7. ADMINISTERED BY (If other than item 6) CODE

USACE, KANSAS CITY +

FEDERAL BLDG, CT-C

601 E 12TH ST RM 647

KANSAS CITY MO 64106-2896

See Item 6

8. NAME AND ADDRESS OF CONTRACTOR (No., Street, County, State and Zip Code) X

9A. AMENDMENT OF SOLICITATION NO.

W912DQ20B1053

X 9B. DATED (SEE ITEM 11)

12-May-2020

10A. MOD. OF CONTRACT/ORDER NO.

10B. DATED (SEE ITEM 13)

CODE FACILITY CODE

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

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

(a) By completing Items 8 and 15, and returning copies of the amendment; (b) By acknowledging receipt of this amendment on each copy of the offer submitted;

or (c) By separate letter or telegram 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 telegramor letter, provided each telegramor letter makes reference to the solicitation and this amendment, and is received prior to the opening hour and date specified.

12. ACCOUNTING AND APPROPRIATION DATA (If required)

13. THIS ITEM APPLIES ONLY TO MODIFICATIONS OF CONTRACT S/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. AS DESCRIBED IN ITEM 14.

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

CONTRACT ORDER NO. IN ITEM 10A.

B. THE ABOVE NUMBERED CONTRACT/ORDER IS MODIFIED TO REFLECT THE ADMINISTRATIVE CHANGES (such as changes in paying office, appropriation date, 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)

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

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

The purpose of this amendment is to update the seeding specifications. Deleted text is shown with strikethrough. Added text is shown with underline.

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.

15A. NAME AND TITLE OF SIGNER (Type or print) 16A. NAME AND TITLE OF CONTRACTING OFFICER (Type or print)

TEL: EMAIL:

15B. CONTRACTOR/OFFEROR

(Signature of person authorized to sign)

15C. DATE SIGNED 16B. UNITED STATES OF AMERICA

BY

(Signature of Contracting Officer)

16C. DATE SIGNED

29-May-2020

EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

30-105-04 STANDARD FORM 30 (Rev. 10-83)

Prescribed by GSA

FAR (48 CFR) 53.243

W912DQ20B1053

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION SF 30 BLOCK 14 CONTINUATION PAGE (SF 30)

The following have been added:

SPECIFICATIONS

Counties:

NOTE: Deleted text is shown with strikethrough. Added text is shown with underline.

1. SPECIFICATIONS:

a. Section 32 92 19 Paragraph No 2.1.4 Seed Mixture by Weight

Planting Season Variety Percent (by Weight)

All Permanent Season K-31 Fescue

Domestic Rye Grass

Smooth Brome

Temporary Seeding Sterile Wheat or Oats 100

b. Section 32 92 19 Paragraph No 2.1.5 Wetland Seed Mixture by Pounds per Acre

Planting Season Variety Pounds/Acre

Wetland Bottoms Big Bluestem

Virginia Wildrye

Switchgrass

Prairie Cordgrass

Fox Sedge

Bur Reed or Sweet Flag or

Common Arrowhead

Water Plantain

0.5

0.01

1.5

Wetland Side Slopes Rice Cutgrass

Prairie Cordgrass

Fowl Manna Grass

Fox Sedge

Joe Pye Weed

Swamp Milkweed

Common Rush

Green Bullrush

Common Oats

0.1

0.2

0.25

0.01

0.01

Other Wetland (Haul routes, berms, etc)

Swamp Milkweed

Sweet Coneflower

Great Blue Lobelia

New England Aster

Little Bluestem

Kanlow Switchgrass

Rice Cutgrass

Common Oats

0.25

0.05

0.3

1.5

1.75

a. Section 32 92 19 Paragraph No 3.2.2.1 Broadcast and Drop Seeding

Permanent seed Seed must be uniformly broadcast at the rate of 90 pounds pure live seed per acre. Wetland Bottoms seed must be uniformly broadcast at the rate of 8.01 pounds pure live seed per acre, Wetland Side Slopes seed must be uniformly broadcast at the rate of 34.57 pounds pure live seed per acre, and Other Wetland (Haul routes, berms, etc) see must be uniformly broadcast at the rate of 49.85 pounds pure live seed per acre. Use broadcast or drop seeders. Sow one-half the seed in one direction, and sow remainder at right angles to the first sowing. Cover seed uniformly to a maximum depth of

1/4 inch in clay soils and 1/2 inch in sandy soils by means of spike-tooth harrow, cultipacker, raking or other approved devices.

b. Section 32 92 19 Paragraph No 3.2.2.1 Drill Seeding

Permanent seed Seed must be drilled at the rate of 90 pounds pure live seed per acre. Use grass seed drills. Drill seed uniformly to average depth of 1/2 inch.

c. Section 35 41 00 Paragraph No 3.11.3 Intermittent Crown & Embankment Erosion Station 33+50 to 58+80 and Breach &

Landside Scour Fill Station 58+80 to 60+60

At station 33+50 to 58+80 the contractor shall repair/restore the levee embankment to same cross section as undamaged sections within repair reach per COR direction (approx. 10' crown with 1' vertical on 3' horizontal slopes). (300 CY Fill &

2.6 AC Seeding/Mulching)

At station 58+80 to 60+60 the contractor shall repair/restore the levee embankment within breach repair reach to same cross section as undamaged end sections per COR direction (approx. 10' crown with 1' vertical on 3' horizontal slopes). In addition, the contractor shall fill all associated landside scour at breach area to the surrounding natural ground contours. The height of levee embankment within the breach repair shall be increased by 5% tapering to no increase in height at the toe of the embankment. The 5% height requirement cannot be exceeded by greater than two tenths of a foot (0.20'). The contractor will be required to degrade embankment height should this limitation be exceeded, at no cost to the government. (1,900 CY

Fill & 0.2 AC Seeding/Mulching levee embankment only)

Borrow for repairs is cross-hatched area generally positioned and is as shown on Site Map B-2. Some minor clearing/grubbing of timber less-than-3-inches at diameter breast height (DBH), and removal of heavy herbaceous vegetation within borrow area is to be expected. Standing timber larger than 3" DBH is to be avoided. Borrow area perimeter side slopes should not be steeper than 1' vertical on 10' horizontal and should have variability with areas of lower slope. Borrow surface to be left in a rough finish grade, with depth variations, with a maximum depth of 2-feet. At conclusion of borrowing activities, if locations within borrow area contain an exposed sand layer which would prevent hydrology retention for wetland establishment, the area(s) shall be lined using suitable clay material. No borrow shall be obtained within 250-feet of the landside levee toe line of the existing levee, or within 100-feet of COE mitigation land boundary line. Contractor to utilize borrow route as shown on Site Map B-2, or other haul route as approved by COR. Upon completion of borrow activity the contractor shall seed and mulch all disturbed areas within borrow area limits with wetland seed mixture. The bottom flats of borrow areas shall be seeded with Wetland Bottom seed mixture. All side slopes of borrow area shall be seeded with Wetland Side Slopes seed mixture. All other disturbed areas of borrow area shall be seeded with Other Wetland seed mixture.

a. Section 35 41 00 Paragraph No 3.11.4 Intermittent Crown & Embankment Erosion Station 69+20 to 101+95

The contractor shall repair/restore the levee embankment to same cross section as undamaged sections within repair reach per COR direction (approx. 10' crown with 1' vertical on 3' horizontal slopes). (400 CY Fill & 4.1 AC Seeding/Mulching)

Borrow for repairs shall be obtained from borrow area 1 and is cross-hatched area generally positioned as shown on Site

Map B-3. Some minor clearing/grubbing of timber less-than-3-inches at diameter breast height (DBH), and removal of heavy herbaceous vegetation within borrow area is to be expected. Standing timber larger than 3" DBH is to be avoided.

Borrow area perimeter side slopes should not be steeper than 1' vertical on 10' horizontal and should have variability with areas of lower slope. Borrow surface to be left in a rough finish grade, with depth variations, with a maximum depth of 1-foot. At conclusion of borrowing activities, if locations within borrow area contain an exposed sand layer which would prevent hydrology retention for wetland establishment, the area(s) shall be lined using suitable clay material. No borrow shall be obtained within 250-feet of the landside levee toe line of the existing levee or within100-feet of COE mitigation land boundary line. Upon completion of borrow activity the contractor shall seed and mulch all disturbed areas within borrow area limits with wetland seed mixture.

The bottom flats of borrow areas shall be seeded with Wetland Bottom seed mixture. All side slopes of borrow area shall be seeded with Wetland Side Slopes seed mixture. All other disturbed areas of borrow area shall be seeded with Other

Wetland seed mixture.

b. Section 35 41 00 Paragraph No 3.11.5 Breach & Landside Scour Fill Station 101+95 to 103+80

The contractor shall repair/restore the levee embankment within breach repair reach to same cross section as undamaged end sections per COR direction (approx. 10' crown with 1' vertical on 3' horizontal slopes). In addition, the contractor shall fill all associated landside scour at breach area to the surrounding natural ground contours. See Drawing C-1. The height of levee embankment within the breach repair shall be increased by 5% tapering to no increase in height at the toe of the embankment. The 5% height requirement cannot be exceeded by greater than two tenths of a foot (0.20'). The contractor will be required to degrade embankment height should this limitation be exceeded, at no cost to the government. (9,700 CY

Fill & 0.3 AC Seeding/Mulching levee embankment only)

Random borrow for breach/landside scour fill repair shall be obtained from borrow area 3 and is cross-hatched area generally positioned as shown on Site Map B-3, COR to identify/flag limits. Borrow consists of sand deposition materials

(6" to 30" in depth), and shall not be removed below the surrounding agricultural lands found at perimeter limits of designated borrow area and removed so as to not retain/pond water. See Drawing C-1 for levee random fill zone.

Impervious borrow for repairs shall be obtained from borrow area 2 and is cross-hatched area generally positioned as shown on Site Map B-3. Some minor clearing/grubbing of timber less-than-3-inches at diameter breast height (DBH), and removal of heavy herbaceous vegetation within borrow area is to be expected. Standing timber larger than 3" DBH is to be avoided.

Borrow area perimeter side slopes should not be steeper than 1' vertical on 10' horizontal and should have variability with areas of lower slope. Borrow surface to be left in a rough finish grade, with depth variations, with a maximum depth of 3-feet. At conclusion of borrowing activities, if locations within borrow area contain an exposed sand layer which would prevent hydrology retention for wetland establishment, the area(s) shall be lined using suitable clay material. No borrow shall be obtained within 250-feet of the landside levee toe line of the existing levee. Upon completion of borrow activity the contractor shall seed all disturbed areas within borrow area limits with wetland seed mixture. The bottom flats of borrow areas shall be seeded with Wetland Bottom seed mixture. All side slopes of borrow area shall be seeded with

Wetland Side Slopes seed mixture. All other disturbed areas of borrow area shall be seeded with Other Wetland seed mixture.

2. DRAWINGS: No change.

3. Offerors are required to acknowledge receipt of this amendment on the Bidding Form in the space provided. Failure to acknowledge all amendments may cause rejection of the proposal.

4. All other terms and conditions remain unchanged and in full force.

(End of Summary of Changes)