W912ES19T0056-0003_Amendment_3.pdf

W912ES19T0056

W81G6790871115

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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)

30-105-04EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

STANDARD FORM 30 (Rev. 10-83) Prescribed by GSA

FAR (48 CFR) 53.243

The purpose of Amendment 0003 is to make changes to the SOW, and extend the solicitation close.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 25

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

16C. DATE SIGNED

BY 08-Jul-2019

16B. UNITED STATES OF AMERICA15C. DATE SIGNED15B. CONTRACTOR/OFFEROR

(Signature of Contracting Officer)(Signature of person authorized to sign)

8. NAME AND ADDRESS OF CONTRACTOR (No., Street , County, State and Zip Code) X W912ES19T0056

X 9B. DATED (SEE ITEM 11)

31-May-2019

10B. DATED (SEE ITEM 13)

9A. AMENDMENT OF SOLICITATION NO.

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 X is extended, 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 of the following methods:

(a) By completing Items 8 and 15, and returning 1 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 telegram or letter, provided each telegram or 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 CONTRACTS/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.)

10A. MOD. OF CONTRACT/ORDER NO.

2. AMENDMENT/MODIFICATION NO. 5. PROJECT NO.(If applicable)

6. ISSUED BY

3. EFFECTIVE DATE

08-Jul-2019

CODE

CONTRACTING DIVISION

USACE - ST. PAUL

180 5TH STREET E SUITE 700

ST. PAUL MN 55101-1678

W912ES 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

SECTION 00 10 00 - SOLICITATION

The Issued By organization has changed from

CONTRACTING DIVISION

USACE - ST. PAUL

180 5TH STREET E SUITE 700

ST. PAUL MN 55101-1678

to

CONTRACTING DIVISION

USACE - ST PAUL

180 5TH STREET EAST

SUITE 700

ST. PAUL MN 55101-1678

SECTION 01 00 00 - GENERAL REQUIREMENTS

The following have been modified:

SCOPE OF WORK

SOLICITATION NO.

SANDY LAKE

AITKIN COUNTY MINNESOTA

SANDY LAKE RECREATION AREA

US Army Corps of Engineers St. Paul District

Sandy Lake Wastewater Holding Tanks SOLICITATION NO. W912ES19T0056

PROJECT TABLE OF CONTENTS Page 1 05/30/19

PROJECT TABLE OF CONTENTS

DIVISION 01 - GENERAL REQUIREMENTS

01 00 00.00 13 GENERAL

01 22 00.00 10 MEASUREMENT AND PAYMENT

DIVISION 02 - EXISTING CONDITIONS

02 41 00 DEMOLITION

DIVISION 32 - EXTERIOR IMPROVEMENTS

32 00 00 SITE WORK

DIVISION 46 - WATER AND WASTEWATER EQUIPMENT

46 00 00 HOLDING TANKS AND ACCESSORIES

-- End of Project Table of Contents --

SECTION 01 00 00.00 13 Page 1

SECTION TABLE OF CONTENTS

SECTION 01 00 00.00 13

GENERAL

PART 1 GENERAL

PART 2 PRODUCTS

PART 3 EXECUTION

3.1 SCHEDULE

3.2 SITE VISIT

3.3 SAFETY

-- End of Section Table of Contents --

SECTION 01 00 00.00 13 Page 2

SECTION 01 00 00.00 13

GENERAL

This project consists of removing the existing Wastewater Treatment Plant (WWTP) and installing 2 - 10,000 gal wastewater holding tanks. The project also includes a new control panel, lift station rehab, and an aggregate driveway.

The work site is located at the U.S. Army Corps of Engineers, Sandy Lake Recreation Area, which is located 15 miles north of McGregor, MN on TH65 in Aitkin County.

Not Used

3.1 SCHEDULE

The site will be available for the work Sept 4, 2019.

All work, including seeding, to be completed by Nov. 1, 2019.

Final seeding restoration to be completed by June 1, 2020.

3.2 SITE VISIT

If a site visit prior to submitting a quote is desired; contact Jeff Steere at (651) 290-5808.

3.3 SAFETY

All work shall be performed in accordance with all state, federal and local laws and regulations and the Corps of Engineers Safety and Health Manual, EM-385-1-1.

Install Orange Safety Fence around the entire work area.

-- End of Section --

SECTION 01 22 00.00 10 Page 1

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

1.1 COMPENSATION

1.2 JOB PAYMENT ITEMS

1.2.1 Performance and Payment Bonds

1.2.1.1 Payment

1.2.1.2 Unit of Measurement

1.2.2 Removal of Existing WWTP

1.2.2.1 Payment

1.2.2.2 Unit of Measure

1.2.3 Lift Station Rehab

1.2.3.1 Payment

1.2.3.2 Unit of Measure

1.2.4 Control Panel

1.2.4.1 Payment

1.2.4.2 Unit of Measure

1.2.5 Site Work

1.2.5.1 Payment

1.2.5.2 Unit of Measure

1.3 UNIT PRICE PAYMENT ITEMS

1.3.1 Wastewater Tanks

1.3.1.1 Payment

1.3.1.2 Measurement

1.3.1.3 Unit of Measure

1.3.2 Aggregate Surface

1.3.2.1 Payment

1.3.2.2 Measurement

1.3.2.3 Unit of Measure

PART 2 PRODUCTS (Not Applicable)

PART 3 EXECUTION (Not Applicable)

SECTION 01 22 00.00 10 Page 2

SECTION 01 22 00.00 10

MEASUREMENT AND PAYMENT

1.1 COMPENSATION

The payment provided for in the contract shall constitute full compensation for furnishing all materials and for performing all work under the contract in a complete and acceptable manner. The contract work shall include providing plant, equipment, tools, supplies, labor, supervision, incidental materials, quality control, environmental protection, meeting safety requirements, and performing all work required for which separate payment is not otherwise provided. Compensation for all work shown, specified, or essential to completion of the project (whether or not the specific material or operation is indicated) shall be included in the price. The payment provided for in the contract includes compensation for all risk, loss, damage, and expense arising out of the nature of the work or its prosecution, subject to conditions of the contract. Payment for each contract line item will constitute full compensation for furnishing the materials and constructing the work complete in place as specified.

1.2 JOB PAYMENT ITEMS

Payment items for the work of this contract for which contract job payments will be made are listed in the SCHEDULE and described below. All costs for items of work, which are not specifically mentioned to be included in a particular job or unit price payment item, shall be included in the listed job item most closely associated with the work involved. The job price and payment made for each item listed shall constitute full compensation for performing all work required for which separate payment is not otherwise provided.

1.2.1 Performance and Payment Bonds

1.2.1.1 Payment

Payment will be made for performance and payment bonds required by this contract in accordance with FAR 52.232-5.

1.2.1.2 Unit of Measurement

Unit of measure: job.

1.2.2 Removal of Existing WWTP

1.2.2.1 Payment

Payment will be made for furnishing all materials, equipment and labor and performing all operations necessary for the removal of the existing WWTP as shown and specified. Work shall include, but is not limited to, removal and disposal of the existing plant, control panel, lab building, chain link fence, bituminous, and all appurtenances.

SECTION 01 22 00.00 10 Page 3

1.2.2.2 Unit of Measure

1.2.3 Lift Station Rehab

1.2.3.1 Payment

performing all operations necessary for the Lift Station Rehab as shown and specified.

1.2.3.2 Unit of Measure

1.2.4 Control Panel

1.2.4.1 Payment

performing all operations necessary to complete the installation of the control panel and all connections as shown and specified.

1.2.4.2 Unit of Measure

1.2.5 Site Work

1.2.5.1 Payment

performing all operations necessary for all Site Work as shown and specified. Work shall include, but not be limited to, grading, topsoil, turf establishment. Note the construction of the Driveway (Aggregate Surface) will be paid seperately.

1.2.5.2 Unit of Measure

1.3 UNIT PRICE PAYMENT ITEMS

Payment items for the work of this contract on which the contract unit price payments will be made are listed in the SCHEDULE and described below. The unit price and payment made for each item listed shall constitute full compensation for furnishing all plant, labor, materials, and equipment, and performing any associated Contractor quality control, environmental protection, meeting safety requirements, tests and reports, and for performing all work required for each of the unit price items.

1.3.1 Wastewater Tanks

1.3.1.1 Payment

performing all operations necessary to complete the installation of the wastewater tanks as shown and specified. Work shall include, but not be

SECTION 01 22 00.00 10 Page 4 limited to, excavation, placement of tanks, alarms, connections, and backfill.

1.3.1.2 Measurement

Wastewater tanks will be measured per each.

1.3.1.3 Unit of Measure

Unit of measure: each.

1.3.2 Aggregate Surface

1.3.2.1 Payment

Payment will be made for furnishing all materials, equipment, and labor and performing all operations necessary for placing Aggregate Surface as shown and specified. Work shall include, but is not limited to, placing aggregate, subgrade preparation, and proof-rolling.

1.3.2.2 Measurement

Aggregate Surface shall be measured for payment by the ton according to weight tickets.

1.3.2.3 Unit of Measure

Unit of measure: ton.

PART 2 PRODUCTS (Not Applicable) PART 3 EXECUTION (Not Applicable)

SECTION 02 41 00 Page 1

DIVISION 02 - EXISTING CONDITIONS

SECTION 02 41 00

DEMOLITION

1.1 ITEMS TO BE REMOVED

1.2 ITEMS TO REMAIN IN PLACE

3.1 REMOVAL ITEMS

SECTION 02 41 00 Page 2

SECTION 02 41 00

DEMOLITION

This section covers the removal of the existing Wastewater Treatment Plant (WWTP) and appurtenances.

1.1 ITEMS TO BE REMOVED

The existing WWTP and all other demolition material and items removed shall become the property of the Contractor and shall be disposed of off site in compliance with all local, state, and federal regulations.

1.2 ITEMS TO REMAIN IN PLACE

Take necessary precautions to avoid damage to existing items to remain in place, to be reused, or to remain the property of the Government.

Do not disturb existing structures and/or vegetation beyond the extent indicated or necessary for the completion of the project.

Protect and maintain existing utilities indicated to stay in service.

Not Used

3.1 REMOVAL ITEMS

Prior to submitting a bid, inspect and evaluate existing structures on site to determine the extent of the work.

Remove existing submersible lift station chopper pumps on a rail system.

Remove WWTF including all associated items and foundation slab.

Remove all electrical lines that will not be reused at the opposite terminal. All power poles to remain in place.

Remove chemical lines and water lines from WWTP to lab building.

Remove influent line from WWTP to manhole. This line will be reconnected at the manhole.

Disconnect effluent pipes and plug with grout.

Remove lab building including foundation slab.

Remove all items inside and outside of lab building.

Remove existing chain link fence.

Remove all concrete structures within the existing fence including

SECTION 02 41 00 Page 3 sidewalks, steps and railings, and retaining wall.

Saw cut existing bituminous at the gate and remove existing bituminous within the existing fence.

Remove the concrete top slab, concrete rings, and access hatches from the lift station and valve manhole.

Remove lift station control panel.

Remove all miscellaneous appurtenances associated with the above items not specifically mentioned.

SECTION 32 00 00 Page 1

DIVISION 32 - EXTERIOR IMPROVEMENTS

SECTION 32 00 00

SITE WORK

1.1 REFERENCES

2.1 AGGREGATE MATERIAL

2.2 TURF ESTABLISHMENT

PART 3 EXECUTION

3.1 AGGREGATE SURFACE

3.2 GRADING

3.3 TURF ESTABLISHMENT

SECTION 32 00 00 Page 2

SECTION 32 00 00

SITE WORK

The work covered by this section includes grading, aggregate surface, and turf establishment.

1.1 REFERENCES

The publications listed below form a part of this specification to the extent referenced. The publications are referred to within the text by the basic designation only.

MINNESOTA DEPARTMENT OF TRANSPORTATION (MNDOT)

MNDOT (2016) Standard Specifications for

Construction

2.1 AGGREGATE MATERIAL

Provide Class 5 Surfacing Aggregate in accordance to MNDOT 3138.

2.2 TURF ESTABLISHMENT

MnDOT seed mix 25-131 Fertilizer: 24-0-24.

Mulch: Straw Topsoil: Salvage existing or import to provide a minimum of 4 inches.

3.1 AGGREGATE SURFACE

Construct aggregate surface in accordance to MNDOT 2221, except as modified below.

Remove all topsoil and shape and compact subgrade.

Construct access with 8 inches of aggregate with a longitudinal slope or a cross slope to promote drainage.

Compact surface and subgrade with a minimum of 2 passes using a roller weighing not less than 5 ton.

Proof-roll the completed agggregate surface with a loaded dump truck with 2 passes.

SECTION 32 00 00 Page 3

3.2 GRADING

Restore all disturbed areas by grading to provide a smooth surface that blends into existing and provides proper drainage.

Spread 4" of topsoil.

Import topsoil or other material as needed.

Export any excess material.

3.3 TURF ESTABLISHMENT

Seed, fertilize and mulch in accordance with the Minnesota Department of Transportation (MnDOT) Specification 2575.

Seed prior to Nov. 1. The following spring; re-seed any areas not showing signs of turf establishment.

SECTION 46 00 00 Page 1

DIVISION 46 - WATER AND WASTEWATER EQUIPMENT

SECTION 46 00 00

HOLDING TANKS AND ACCESSORIES

1.1 SUBMITTALS

2.1 HOLDING TANKS

2.2 CONTROL PANEL

2.3 ACCESS HATCHES

2.4 PVC - FORCEMAIN

PART 3 EXECUTION

3.1 HOLDING TANKS

3.2 LIFT STATION

3.3 CONTROL PANEL

3.4 FORCEMAIN

3.4.1 Hydrostatic Tests

3.5 ATTACHMENTS

SECTION 46 00 00 Page 2

SECTION 46 00 00

HOLDING TANKS AND ACCESSORIES

This section covers the installation of the holding tanks, and all associated work including, lift station rehab, control panel, grading, and restoration.

1.1 SUBMITTALS

Government approval is required for the following submittals.

SD-02 Shop Drawings Holding Tanks Control Panel Access Hatches PVC - Forcemain Site Plan Prepare a Site Plan showing the location, configuration, bottom elevation and top elevation of the tanks. Also show the aggregate driveway. A hand drawing is acceptable.

2.1 HOLDING TANKS

The tanks shall have a capacity of 10,000 gallons each.

All tanks shall be watertight and designed to withstand anticipated soil pressures, hydrostatic pressures, and live loads when either full or empty.

Provide adequate ballast for tanks.

The tank shall be made of 5000 PSI precast concrete with reinforcement all meeting the requirements of ASTM C1227 suitable for the application of holding wastewater.

The base and the walls shall be integral precast.

All joints shall be tongue and groove sealed with butyl resin gasket.

Construction, including compartments, baffles and venting shall be according to State and Local codes.

The concrete tanks shall be interconnected with a minimum 8" diameter pipe or according to the manufacturer's recommendations.

Provide 24" manhole openings. One per compartment with a minimum of two

SECTION 46 00 00 Page 3 per tank.

Provide cast iron frame and cover for manholes with watertight, gastight gaskets.

All interior and exterior concrete tanks shall be painted with 8-10 mils total dry film thickness (TDFT) of a coal tar epoxy type coating.

Provide a sight glass level indicator appropriate for this application.

Provide high liquid level (buzzer and light) alarm. Mount alarm on the control panel post.

2.2 CONTROL PANEL

The control panel shall include all the same controls as the existing panel plus hourly run timers for each pump.

The control panel enclosures shall be NEMA 4X per NEMA 250, welded seamless construction. Material shall be of 14 gauge, type 316, stainless steel.

The control panel construction shall comply with the requirements of Underwriter's Laboratories Industrial Control Panels listing. Use only UL listed and recognized components.

Control Panel Enclosure. The control panel enclosure shall have a weatherproof door(s).The enclosure door(s) shall be gasketed and dust-tight with continuously hinged and with doorstop kit. The enclosure door(s) shall have a three point latch with padlock provision. The enclosures shall have a dead front panel. The dead front panel shall be continuously hinged. The dead front panel shall be held closed with two slotted nickel plated brass captive panel screws with knurled edges to allow for finger or screwdriver tightening. The enclosure backpanel shall be a fixed rigid backpanel made from 12 gauge hot-dipped galvanized steel with white baked enamel finish.

It shall be tapped to accept the mounting screws. Equipment mounted in the panel shall be securely fastened to the backpanel. The control panel hardware shall be stainless steel bolts, nuts, washers, lockwashers, and machine screws. The control panel shall be provided with a wiring diagram and schematic showing function and connections points. The control panel shall have warning tags specifying voltage, phase, voltage danger, and flash danger

A "Hand-Off-Automatic" (H-O-A) selector switch shall be provided for each pump. In the "Hand" position, the motors shall start and run independently of the float switch. In the "Automatic" position, the operation of the motor shall be under control of the float switch. In the "Off" position the motors shall not run.

An "Alternator" shall be provided. The alternator shall be designed to distribute the service of each pump to achieve, as nearly as possible, equal starting and running time.

The alarms shall indicate high liquid level and low liquid level situations. The alarms shall consist of a warning light and an audible alarm mounted on the control panel. The horn shall have the ability to be silenced.

SECTION 46 00 00 Page 4

2.3 ACCESS HATCHES

Access hatches shall be rectangular stainless steel locking and sized to allow for operator and equipment access and removal. The hatches shall be capable of being locked in the open position.

2.4 PVC - FORCEMAIN

2" PVC Pipe and fittings, AWWA C900, schedule 40

Joints for PVC forcemain shall be push-on conforming to ASTM D3139 with gaskets meeting ASTM F477.

3.1 HOLDING TANKS

The installation of all components shall be installed according to the manufacturer requirements, State, and local codes. Manufacturer's requirements shall superseded the requirements below.

Excavation should be a minimum of 12" larger than tank size to allow for adequate back fill.

Concrete tanks shall be set level on a minimum 6" of compacted granular base.

Backfill all sides from bottom to top of tank with a minimum of 12" of granular material. Backfill material shall be placed with a backhoe or concrete bucket to avoid impact loads on sidewall of tank. No compaction of backfill material is permitted on sidewalls of tank.

Cover the tank with native material or granular material. Remove all rocks greater than 3" from native material prior to using as cover. Cover materials shall be mounded over tank and around risers to direct run-off away from both.

Granular material shall be 100% passing a 3/4" sieve and not more than 5% by weight of material passing the No. 200 sieve.

Prior to backfilling all tanks and structures shall be tested for leaks by filling with water and observing no drop in water level over a 24 hr period. Any leaking tank or structure shall be repaired and retested until free from leaks.

The Contractor shall be responsible for obtaining all permits required from Aitkin County for the installation of the tanks. The Contractor is responsible for paying all permit related fees, including inspection fees.

3.2 LIFT STATION

The existing system consists of a 4' dia concrete lift station approximately 15' deep and a 4' diameter concrete valve manhole approximately 10' deep.

The lift stations contains 2 submersible pumps on a guide rail system.

Replace the existing submersible lift station chopper pumps with new 3

SECTION 46 00 00 Page 5 horsepower chopper pumps.

Replace the concrete top slab on the lift station and the valve manhole.

The new concrete top slabs shall include an access hatch. The access hatch shall be positioned to allow for operator and equipment access and removal.

The top slab for the lift station shall contain a vent pipe and a 2" pipe sleeve with cap for sampling.

3.3 CONTROL PANEL

Replace the controls and control panel.

Reconnect wire to the pumps.

The existing service is 120/240 Volt Single Phase

Electrical installation shall be in accordance with the National Electrical Code NFPA 70 (latest edition), IEEE C2 National Electric Safety Code (latest edition), federal, state and local standards. Where conflicts exist between codes and standards the more stringent code or standard shall take precedence.

The Control Panel shall be post mounted.

An exterior 110 volt outlet shall be mounted on the pole next to the control panel.

3.4 FORCEMAIN

Connect forcemain to existing pipe at Valve Manhole.

Install forcemain with 7' of cover.

Encase forcemain in 12" of granular material.

3.4.1 Hydrostatic Tests

Perform a hydrostatic pressure test of 150 psi on the forcemain from the CVMH to the tank. Fill the pipe with water and expel all air at the holding tank. The test apparatus shall be connected at the CVMH Use a standard pressure gauge with a minimum 4" dial that registers from 0 - 200 psi with 1 psi increments.

The hydrostatic test, pressure requirement for an acceptable test shall be a maximum pressure drop of 2 psi during the last hour of the two hour pressure test.

If this test requirement cannot be met, the Contractor shall investigate the cause, make corrections, and retest until the pressure drop requirement can be met.

3.5 ATTACHMENTS

1. Site Plan 1 Page

2. Aerial Photo 1 Page z

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SITE PLAN

(End of Summary of Changes)