AMENDMENT_0003_RFP_W912P616R0031_IHC_CDF_CONSTRUCTION_MGMT_SVCS.pdf

W81G6661484366

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

SUBJECT: RFP W912P6-16-R-0031, IHC, CDF CONSTRUCTION MANAGEMENT SERVICES, EAST CHICAGO, INDIANA

PROSPECTIVE OFFERORS SHALL REFER TO THE FOLLOWING PAGES, WHEREIN THE AMENDMENT PARTICULARS ARE PROVIDED.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 6

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

16C. DATE SIGNED

BY 09-Sep-2016

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 W912P6-16-R-0031

X 9B. DATED (SEE ITEM 11)

12-Aug-2016

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

09-Sep-2016

CODE

U.S. ARMY ENGINEER DISTRICT, CHICAGO

231 SOUTH LASALLE STREET SUITE 1500

CHICAGO IL 60604-1437

W912P6 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODECODE

EMAIL:TEL:

W912P6-16-R-0031

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

The following items are applicable to this modification:

AMENDMENT PARTICULARS:

A. The Proposal Due Date is extended by this Amendment; the time for submission remains unchanged;

therefore, proposals shall be provided to the USACE‐Chicago District by 4:00 p.m. (CDT) on September

14, 2016.

B. By this Amendment, the USACE is providing responses to contractor’s questions.

C. This Amendment includes Revised Specifications Sections, which are as follows and attached hereto.

The specifications were amended to: a) clarify requirements for riprap testing and installation, and b) clarify requirements for wastewater treatment plant NPDES reporting. The riprap requirements were revised after questions arose from potential offerors. The treatment plant reporting requirements were revised to ensure the government has time to review reports.

Specification 31 37 03, paragraphs 1.1, 1.4.3, 3.1, 3.2.1 were revised.

Specification 44 41 13, paragraph 1.2 was revised

D. The Point of Contact (POC) for this Amendment is Regina Blair, who may be reached by phone at 312‐846‐5371.

E. Contractor’s shall acknowledge this Amendment No. 0003 and may email a copy of the acknowledged Amendment 0003 to REGINA BLAIR at regina.g.blair@usace.army.mil with a copy furnished to Megan Manis at megan.r.manis@usace.army.mil.

THE USACE’S RESPONSES TO CONTRACTOR’S INQUIRIES FOLLOW:

Question 1. SECTION 35 20 23.50 Page 6 All sediment from the TSCA areas shown on the drawings must be placed in the East Cell of the CDF. All non‐rock sediment, regardless of whether it can be hydraulically pumped by the offloading system must be placed in the east cell of the CDF. Debris must be thoroughly decontaminated to remove any sediment prior to placement in the west cell of the CDF. The COR or their representative may inspect debris prior to disposal in the west cell.

Question: What do we do with compacted sediment that can’t be pumped?

Response: All sediment must be placed in the east cell. The contractor will need to propose a method to place the material in the east cell in a distributed layer.

Question 2. 1.2.15 CDF Bathymetry Survey (Bid Items 0003AH, 0012AH, 0020AH, 0028AH, 0035AH)

1.2.15.1 Payment. Payment will be made for all costs associated with the surveying of sediment within one CDF disposal cell before and after each dredging event. The active disposal cell receiving dredged material will be surveyed. If both cells receive dredged material during the same dredging event, then each cell will be surveyed and payment will be made for each cell surveyed. This line item covers labor, material, equipment, and incidentals necessary to perform the CDF sediment survey described in

SECTION 35 20 23.15 MECHANICAL DREDGING, TRANSPORTATION, AND DISPOSAL. .2.15.2

Measurement shall be made by the number of surveys performed for one CDF cell. 1.2.15.3 Unit of Measure Unit of Measure: Each (EA) Question: Does the scope of one survey measured and paid include both the before and after survey of one cell?

Response: The line item includes the before dredging and after dredging survey of one cell.

Question 3. SECTION 01 93 10 Page 6

3.7.1 Crane Maintenance and Repairs

The contractor shall perform all routine maintenance, routine repairs, and emergency repairs for the Government furnished crane to maintain crane operability and ability to perform the tasks specified by the contract. The contractor shall ensure that all maintenance, repairs and modifications to the Government furnished crane are performed in accordance with EM 385‐1‐1, Section 16.G.02.

3.7.2 Crane Inspections and Testing

The contractor shall perform all inspections specified by EM 385‐1‐1, Section 16.D in accordance with the schedules and circumstances specified in that Section. The contractor shall perform all maintenance, repairs and modifications necessary to maintain the crane's compliance with EM 385‐1‐1, Question: Do we need to inspect and repair the crane if and when we have no Task Orders that we need the crane to operate?

Response: Yes – Inspection (including Annual Inspection) and all routine maintenance as required by the manufacturer and described in the specifications is to be part of the CDF facility maintenance line item work. Repairs beyond those required by the manufacturer’s routine maintenance checklist and described in the specifications shall be performed under the major repairs/upgrade line item. A copy of the manufacturer’s checklist is available from USACE.

Question: What repairs are not the responsibility of the contractor?

Response: All crane repairs are to be the responsibility of the contractor.

Question 4. Section 35 20 23.15, Part 1.8 Material to be removed says, “Material to be removed as part of this contract will consist of both historical “backlog” material that accumulated between 1972 and 2012, and “maintenance” material that has accumulated since 2012, depending on the areas to be dredged, including overconsolidated, well‐compacted, or cemented material, or other hard materials encountered within the Federal Channel, above the specified bottom of the required dredging prism.”

Question: Will the contractor be required to dredge hard or virgin material outside the Federal Channel?

Response: In theory there is no “virgin” material within the dredge prism of this manmade channel, however after many years of not dredging, the deeper sediment is well compacted both inside the channel limits and also in adjacent berthing areas. It is possible that the contractor will be asked to dredge outside the federal limits, for example along a dockface for a local sponsor, and that the deeper sediment will be hard material. There are no known bedrock outcroppings within the dredge prism for this harbor.

Question: Does the word backlog refer to maintenance material previously dredged in the Federal Channel and virgin material that remained in the Federal Channel from previous years?

Response: Backlog refers to the material that has not been dredged since the 1970’s.

Question 5. Sheet G‐003. The Past IHC Dredging Volumes by Year and Dredging Areas. The debris quantities shown indicate volumes of debris that were picked up with an environmental bucket. Hard areas and heavy debris laden areas were skipped over or dredged privately. For example, Area 5 Non‐ Federal had 16,000 cubic yards of heavy industrial debris that was dredged with a modified clam shell and was offloaded onto private property for disposal. That quantity is not included in the Past IHC Dredging Debris Volumes because it didn’t go in the CDF. Also, Reach 12 had over 2,000 tons of stone along the dock face.

Question: Note 5 on Sheet G‐004 states the debris pad shown on the drawing is the only place the contractor can stockpile and wash debris. What is the capacity of the debris pad?

Response: The maximum capacity of the debris pad is 6,000 pounds. Please reference Specification Section 01 10 00 General Provisions, Paragraph 1.10.1, subparagraph 5, which states: "The Contractor may use the south end of the site for storage, equipment or other purposes consistent with the execution of the specifications, EXCEPT that the area shown on the plans over the canal sheet pile wall tiebacks may not be used, nor can the contractor use the 700 feet westernmost end of the dock face or any area allocated to another Contractor. The south access road shall be limited in use by vehicles not to exceed the Class 1 Light Duty Trucks (0 to 6,000 lbs)."

The debris pad is located over the tiebacks, however, access will granted on the debris pad to vehicles and equipment under 6,000 pounds (total weight of all vehicles on the pad). The Contractor shall be prohibited from driving over any other part of tie rod area unless they make a specific written request to do so, which must be approved by USACE before proceeding. Access will be limited to vehicles under 6,000 pounds for a limited duration. In the case of an emergency, an ambulance or light duty truck as described in the specifications will be allowed over the tie rod area if necessary. Any heavier vehicles, such as fire trucks, will remain prohibited. Please note that the south access road is north of the tie rod area.

Question: Are there restrictions for vehicular traffic coming and going to the debris pad?

Response: The maximum loading capacity of the debris pad is 500 pounds per square foot. Any vehicles on the debris pad remain limited to a maximum weight of 6000 pounds.

Question: Note 5 also states to hose down or clean debris at the debris pad. Is water available at the pad for washing?

Response: There is a water faucet at the decontamination pad of limited capacity that would be possible to use.

Question: Will the wastewater need to be captured and pumped to the CDF?

Response: The debris pad drains to the groundwater collection system and is pumped to the CDF, where it does become part of the water that would be treated prior to discharge. There is no need to have a separate treatment operation for water from the debris pad only.

Question 6. The previous RFP Question: Response 6 said, “The quantity requiring dredging with a modified clam shell bucket is expected to be small relative to the volume that can be dredging using and environmental bucket”.

Question: Please define the term small mentioned in Response 6. Please confirm this response applies to this RFP.

Response: Small does not have a numerical value. An environmental bucket will be used whenever it is possible to remove material from the canal. Only after it is demonstrated that an environmental bucket cannot be used to remove the material from the canal will a modified clam shell bucket be allowed for use. It is expected that more material can be removed with an environmental bucket than with a modified clam shell bucket.

Question 7. Section 35 20 23.15 Mechanical Dredging, 2.1.2 Modified Clam‐Shell Bucket. The specification says, “Any heavy debris or over consolidated, well‐compacted, or cemented materials or other hard materials incapable of being dredged using an environmental bucket. Utilize the modified clam‐shell bucket only in portions of TSCA and non‐TSCA areas, as needed, where project depth cannot be obtained using the environmental bucket.”

If a Modified Clam‐Shell bucket is used, the bucket will have different physical characteristics and capabilities, which will drastically affect the dredging production. Therefore, we recommend that a separate bid item for this volume of material be identified in the contract. This would result in a more cost effective solution to the government.

In Section 1.6 the dredging activity is said to consist of dredging, loading of barge or scow, transporting sediment to IHC CDF, and hydraulically off‐loading sediment. Heavy debris or over consolidated, well‐ compacted, or cemented materials or other hard materials incapable of being dredged using an environmental bucket, will also primarily NOT be hydraulically pumpable. The specification does not address the offloading and hydraulic transportation of the dredging activity. Could the corps specify how these materials are to be transported and distributed in the CDF?

Response: The contractor must use hydraulic off loading whenever possible for placing sediment in the

CDF. The contractor must propose debris and other material placement methods.

Question: Since this was not part of the current contract, and has not been previously required, and not accurately predictable, what is the reasonable quantity a contractor should anticipate? Alternatively could there be a separate CLIN for this dredging to fairly compensate the contractor for the work?

Response: A separate CLIN is not considered at this time. The volume of material anticipated to be dredged with a modified clam shell bucket is anticipated to be less than that dredged with an environmental bucket. Consistent with the Environmental Impact Statement for this project and with other project constraints and agreements, an environmental bucket has been identified as the primary dredging technology required.

Question: Will the Government order dredging in previously dredged areas where an environmental bucket has been unsuccessful in achieving the required grade?

Response: The Government will order dredging in potentially any/all areas where bathymetry indicates that the sediment elevation is above the authorized depth, including areas which have been previously dredged.

Question 8. Debris. Page G‐003 lists past dredging volumes and debris tonnages by the year. What if the debris quantities represented in the table are exceeded in subsequent dredging years? Will the government fairly compensate the contractor for the additional work?

Response: Increased quantities will be ordered via modifications to the respective task order.

Unforeseen site conditions will be addressed via the Differing Site Conditions FAR Clause.

Question 9. Bid Item CDF Water Management. “Payment will be made for the cost of managing water outside of routine dredging operations in the CDF cells by transferring water between the cells, as directed by the COR. Payment DOES NOT include water transfer between cells during dredging operations and sediment offloading periods”. If water is transferred between cells prior to or after dredging/offloading operations, is this considered part of the dredging operation period? For example, prior to the start of dredging 3 ft of water is pumped from one cell to the other to make room for 3 ft of dredge material in that cell. Will that volume be paid under this bid item?

Response: The CDF Water Management line item is to pay for water transfer when the contractor is not at the site during the dredging period. The dredging period includes one month before dredging/sediment disposal starts and one month after dredging/sediment disposal ends. Water management that occurs in conjunction with dredging, such as moving water just before the start of dredging operations, is NOT covered under this pay item. This pay item covers independent water management activities that may occur outside of the dredging period.

Question 10. Wages Rates. Will each Option year executed be subject to revised wage rate determinations?

Response: Yes, the new wage determination will be incorporated in accordance with the provisions set forth at FAR Subpart 22.404‐12, “Labor standards for contracts containing construction requirements and option provisions that extend the term of the contract.”

END OF QUESTIONS AND RESPONSES

END OF AMENDMENT 0003

Indiana Harbor and Canal CDF Facility Operations and Dredging W912P6-16-R-0031

SECTION TABLE OF CONTENTS

DIVISION 31 - EARTHWORK

SECTION 31 37 03

RIPRAP FOR EROSION CONTROL

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 SOURCES AND EVALUATION TESTING

1.4 GRADATION AND SHAPE TESTING PROCEDURES

1.4.1 General

1.4.2 Riprap Material and Armor Stone

1.4.3 Testing Requirements

1.4.4 Corrective Action

PART 2 PRODUCTS

2.1 STONE MATERIALS

2.1.1 General

2.1.2 Material Quality

2.1.2.1 General

2.1.2.2 Acceptability of Stone Material

2.2 RIPRAP

2.2.1 Bulk Specific Gravity

2.2.2 Gradation Testing

2.2.3 Processing

2.3 TOXIC SUBSTANCES CONTROL ACT (TSCA) CAPPING MATERIAL

2.3.1 Bulk Specific Gravity

2.3.2 Gradation Testing

2.3.3 Processing

PART 3 EXECUTION

3.1 RIPRAP FOUNDATION PREPARATION

3.2 PLACEMENT

3.2.1 Riprap

3.2.2 TSCA Capping Material

3.2.2.1 Armor Stone

3.2.2.2 Underwater Placement

3.2.3 Bridge Piers

3.3 QUALITY CONTROL

3.3.1 TSCA Capping Quality Control

-- End of Section Table of Contents --

SECTION 31 37 03 Page 1

AMD-0003

SECTION 31 37 03

RIPRAP FOR EROSION CONTROL

PART 1 GENERAL

The work covered by this section includes the furnishing of all plant, labor, equipment, and materials; and performing all operations necessary for the installation of riprap and armor stone, in accordance with these specifications and drawings. Armor stone will be placed in the areas shown on the plans. Riprap will be placed as needed during the project life for erosion control on the site, dikes, ditches.

1.1 REFERENCES

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

ASTM INTERNATIONAL (ASTM)

ASTM C 127 (2007) Standard Test Method for Density, Relative Density (Specific Gravity), and Absorption of Coarse Aggregate

ASTM C 42/C 42M (2010) Standard Test Method for Obtaining and Testing Drilled Cores and Sawed Beams of Concrete

ASTM C 295 (2008) Petrographic Examination of Aggregates for Concrete

ASTM C 535 (2009) Standard Test Method for Resistance to Degradation of Large-Size Coarse Aggregate by Abrasion and Impact in the Los Angeles Machine

ASTM D 4992 (2007) Evaluation of Rock to be Used for Erosion Control

ASTM D 5312 (2004) Evaluation of Durability of Rock for Erosion Control Under Freezing and Thawing Conditions

ASTM D 5313 (2004) Evaluation of Durability of Rock for Erosion Control Under Wetting and Drying Conditions

ASTM D5519 (2015) Particle Size Analysis of Natural and Man-Made Riprap Materials

1.2 SUBMITTALS

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

submittals not having a "G" designation are for information only. When

SECTION 31 37 03 Page 2 used, a designation following the "G" designation identifies the office that will review the submittal for the Government. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Sources and Evaluation Testing; G, DG

Gradation and Shape Testing Procedures; G, DG

SD-06 Test Reports

Bulk Specific Gravity; G, DG

Material Quality; G, DG

Gradation Testing; G, DG

1.3 SOURCES AND EVALUATION TESTING

Unless approved otherwise, materials shall be procured from a supplier that holds current state certification as an approved, active commercial aggregate supplier. If the Contractor proposes to furnish materials from another source, the Contracting Officer will make such investigations and evaluations as necessary to determine whether or not materials meeting the contract requirements could be produced from the proposed source. Sources from which Contractor proposes to obtain the materials shall be selected and submitted for approval at least 60 calendar days in advance of the proposed date when the material shall be delivered to the project work site.

1.4 GRADATION AND SHAPE TESTING PROCEDURES

1.4.1 General

Sampling and testing shall be performed by and at the expense of the Contractor at no additional cost to the Government. Unless specified or approved otherwise, suitable samples of stone shall be obtained prior to delivery of stone material to the work site. Unless otherwise approved, samples shall be obtained by the Contractor in the presence of the Contracting Officer.

1.4.2 Riprap Material and Armor Stone

Acceptability of riprap shall be based on visual inspection, available test results, and service records and shall demonstrate to the satisfaction of the Contracting Officer that the materials meet the requirements for gradation and quality and are acceptable for use in the work.

1.4.3 Testing Requirements

Testing results shall be submitted to the Contracting Officer within two

(2) calendar days after completion of each testing. Minimum test sample size shall be in accordance with ASTM D5519 to provide 5% accuracy or better. The minimum sample size for tests and number of tests for riprap and Toxic Substances Control Act (TSCA) capping material armor stone shall be as follows:

SECTION 31 37 03 Page 3

Material Sample Size Minimum Number of Test

Riprap 1 ton 1 Test per 8001,000 tons per each type or not less than 1 test per day 7-day week on which material is delivered and/or placed

TSCA Capping 1 ton 1 Test per 800 tons per each Material Armor type or not less than 1 test Stone per day on which material is delivered and/or placed

The Contractor shall take as many additional tests under the Contractor's quality control program as is needed to insure that the gradation is being met.

1.4.4 Corrective Action

If materials fail to meet gradation and shape requirements, the Contractor shall adjust its operations and verify with necessary tests that acceptable materials are being produced, or it shall propose another source and verify with necessary tests that acceptable materials can be produced from that source. Failure to meet gradation may result in removal of the riprap already in place which the failed test represented at no additional cost to the government.

PART 2 PRODUCTS

2.1 STONE MATERIALS

2.1.1 General

The materials to be furnished shall meet all quality requirements outlined in this Section of the specification and shall meet specified gradations.

Materials which have been delivered to the project site and are rejected, whether in stockpile or in place in the structure, shall be removed from the project site at the Contractor's expense and shall be returned to the source at the Contractor's expense.

2.1.2 Material Quality

2.1.2.1 General

All stone materials shall be of a quality to insure permanence of the structure in the climate in which it is to be used. Stone gradations shall be from stone sources approved in accordance with applicable paragraphs of this section. Regardless of source, the stone shall be durable, sound, and free of features, which may increase deterioration from natural causes or breakage during handling, transportation, or placement. These features may include, but are not limited to fractures, seams, vugs, bedding, stylolites, planes of separation, weathering, argillaceous material, and micaceous minerals. All stone shall be highly resistant to abrasion, weathering and disintegration under freeze/thaw and wetting/drying conditions. Stone exhibiting vugs totaling not more than 10 percent of the total surface area of any face and less than four (4)

SECTION 31 37 03 Page 4 inches in maximum diameter will be accepted provided they are not aligned along bedding planes or other planes of weakness, other provisions of this specification nothwithstanding.

2.1.2.2 Acceptability of Stone Material

Acceptability of stone material will be based on the criteria in this section and as determined by the Contracting Officer's Representative (COR) by visual inspections, evaluation of service records, and applicable laboratory test results. Laboratory results shall be representative of the same lithologic unit as the corresponding stones or materials.

Laboratory test results shall be from a Government or Government-approved laboratory capable of handling sample sizes described in the subscript of Table 1, and shall be less than five (5) years old at the time of submittal, unless otherwise accepted by the COR. If test results are more than five (5) years old, or are not representative of the material proposed under this Contract, the COR may select samples from the materials designated by the Contractor as proposed sources, and direct the Contractor to have selected stones tested at no additional cost to the Government by a Government or Government-approved laboratory in accordance with the requirements of Table 1, below. Field and laboratory tests to which the material may be subjected are listed in the paragraph 1.1, "REFERENCES". The COR may waive the requirement for laboratory testing of stone, based on the results of visual inspections and service records in projects similar to this project. Under no circumstances will the Contractor be allowed a contract extension for the time necessary to evaluate materials for acceptability.

Table 1: Criteria for Stone Quality Test Test Method Acceptance Criteria

Specific Gravity ASTM C 127 2.4 to 3.0

Absorption ASTM C 127 >1 percent and <3 percent

Los Angeles Abrasion ASTM C 535 < 20 percent loss after 500 revolutions

Freeze-Thaw ASTM D 5312 < 5 percent loss after 35 cycles

Wetting-Drying ASTM D 5313 < 5 percent loss after 80 cycles

Petrographic Analysis ASTM C 295 < 10 percent deleterious materials (1)

Field Examination ASTM D 4992 No clay seams, planes of weakness, <10 percent vugs and deletirious minerals

SECTION 31 37 03 Page 5

Test Test Method Acceptance Criteria

Compressive Strength ASTM C 42/C 42M Minimum 3000 psi

Note: Deleterious materials as defined in ASTM C 295 including but not limited to organic matter, clay, micaceous minerals, chert or any expansive or non-resistant minerals.

2.2 RIPRAP

Riprap shall be durable quarried or field stone of a quality suitable to ensure permanence in the structure and in the climate in which it is to be used. Material shall meet the quality requirements outlined in Table 1 of this section. The stone shall be well graded within the required limits and shall be free from cracks, seams, and other defects that would unduly increase deterioration from natural causes. The inclusion of objectionable quantities of dirt, sand, clay, or rock fines will not be permitted. Neither the breadth nor the thickness of any piece of stone shall be less than one third of its length. Occasional pieces of stone slightly larger than the maximum weight will be permitted, provided the gradation and voids are not unduly affected and that surface tolerances are met.

2.2.1 Bulk Specific Gravity

Riprap material shall have a specific gravity between 2.40 and 3.00.

2.2.2 Gradation Testing

Riprap material shall have a gradation where D50 is eight (8) inches.

2.2.3 Processing

The Contractor shall submit for approval a method of processing riprap and rockfill at the quarry that shall preclude the inclusion of objectionable amounts of fines. At a minimum, all riprap shall be handled once with an approved rock fork or shall be processed over an approved grizzly. Riprap shall be processed in accordance with the method(s) approved.

2.3 TOXIC SUBSTANCES CONTROL ACT (TSCA) CAPPING MATERIAL

Armor stone shall be durable quarried or field stone of a quality suitable to ensure permanence in the structure and in the climate in which it is to be used. Material shall meet the quality requirements outlined in Table 1 of this section. The stone shall be well graded within the required limits and shall be free from cracks, seams, and other defects that would unduly increase deterioration from natural causes. The inclusion of objectionable quantities of dirt, sand, clay, or rock fines will not be permitted. Neither the breadth nor the thickness of any piece of stone shall be less than one third of its length. Occasional pieces of stone slightly larger than the maximum weight will be permitted, provided the gradation and voids are not unduly affected and that surface tolerances are met.

2.3.1 Bulk Specific Gravity

Armor stone shall have a specific gravity between 2.40 and 3.00.

SECTION 31 37 03 Page 6

2.3.2 Gradation Testing

Armor stone shall have a gradation where D50 is eight (8) inches.

2.3.3 Processing

The Contractor shall submit for approval a method of processing armor stone at the quarry that shall preclude the inclusion of objectionable amounts of fines. Armor stone shall be processed in accordance with the method(s) approved.

PART 3 EXECUTION

3.1 RIPRAP FOUNDATION PREPARATION

Each foundation area shall be excavated or filled to lines and grades shown for the TSCA capping areas . Foundation preparation for riprap placement on the CDF slopes is not required. Fill such areas, at no additional expense to the Government, with: material similar to adjacent undisturbed in-place material and well compacted. Immediately prior to placing riprap, the prepared subgrade will be inspected by the Contracting Officer and no material shall be placed thereon until that area has been approved.

3.2 PLACEMENT

3.2.1 Riprap

Riprap shall placed per the COR's direction if needed for erosion control on the interior slope of the dike. Riprap will be placed on top of the eroded benches along the water line to provide short-term protection against further erosion until that portion of the slope is filled in by sediment. Riprap coverage will vary depending on the extent of the erosion damage. Riprap shall be placed to the full surface course thickness in one operation and in such a manner as to avoid displacing the underlying material. Placing riprap in layers will not be permitted. The finished mass shall be free from pockets of small stones, clusters, or larger stones and excessive voids. Placing riprap by dumping into chutes or by similar methods likely to cause segregation will not be permitted.

Distribution of various sizes of stones shall be obtained during final placing, or by methods which will produce the required results.

Rearranging of individual riprap stones by mechanical equipment or by hand will be required to obtain a reasonably well graded distribution of stone sizes. The Contractor shall maintain the stone protection until accepted, and displaced material shall be replaced by the Contractor at no additional cost to the Government.

3.2.2 TSCA Capping Material

3.2.2.1 Armor Stone

Armor Stone is only to be used in the areas and locations specified by the drawings when TSCA material is dredged and removed from the Indiana Harbor and Canal. The armor stone shall be spread uniformly on geotextile. The thickness of the armor stone shall be a minimum of 1.5 feet. The top of the stone cap shall not extend above -25.0 feet LWD. Contractor may be directed to remove any stone placed above -25.0 feet LWD. The armor stone shall also meet the requirements described in SECTION 35 20 23.50 TSCA

SECTION 31 37 03 Page 7

DREDGING, PLACEMENT AND CAPPING. The placing of material by methods which could segregate particle sizes will not be permitted. Care must be used to not damage the geotextile. Compaction will not be required.

3.2.2.2 Underwater Placement

Stone for riprap to be placed under water shall meet gradation requirements in the bucket or container used for placing, and shall be placed in a systematic manner directly on the geotextile so as to assure a continuous and uniform layer of well graded rock of that required thickness. Rock to be placed under water shall not be cast across the surface of the water.

Do not drop stone directly onto geotextile from a height greater than three (3) feet. Do not place stone in a pile greater than three (3) feet tall for spreading. Dragging a bucket or other device over the surface of the stone for spreading may not be permitted. Submit a Geotextile Installation Plan for approval by the Government as described in SECTION

35 20 23.50 TSCA DREDGING, PLACEMENT AND CAPPING.

3.2.3 Bridge Piers

At bridge piers (e.g., near station 129+00), armor stone shall be placed to a horizontal distance of three (3) times the diameter of the bridge pier on geotextile. The riprap shall be placed in a circle around the pier.

3.3 QUALITY CONTROL

The Contractor shall establish and maintain quality control for work under this section to assure compliance with contract requirements and maintain quality control for all construction operations including, but not limited, to the following:

(1) Quality,

(2) Testing for gradation and shape,

(3) Foundation preparation,

(4) Elevations of underlying materials,

(5) Layer thickness,

(6) Uniformity of in place materials,

(7) Finish elevations of in-place materials.

A copy of the records of inspections and tests, as well as the records of corrective action taken, shall be furnished to the Government as directed by the Contracting Officer.

3.3.1 TSCA Capping Quality Control

The Government will take predredge, postdredge, and postcapping soundings of the TSCA hotspots. The Contractor shall propose and establish additional provisions within the Geotextile Installation Plan for divers, underwater cameras, or other quality control mechanisms, for approval by the Government. Develop a dive plan, as described in SECTION 01 45 00.00 QUALITY CONTROL, if necessary.

-- End of Section --

SECTION 31 37 03 Page 8

SECTION TABLE OF CONTENTS

DIVISION 44 - POLLUTION AND WASTE CONTROL EQUIPMENT

SECTION 44 41 13

WASTEWATER TREATMENT PLANT

PART 1 GENERAL

1.1 REFERENCES

1.2 SUBMITTALS

1.3 GENERAL REQUIREMENTS

1.3.1 Standard Products

1.3.2 Contractor Requirements

1.3.3 Electrical

1.4 SYSTEM OPERATION

1.4.1 Influent Characteristics

1.4.2 Wastewater Treatment Plant Flowrate

1.4.3 Effluent Characteristics

1.4.4 Connection to Decant Structures

1.4.5 Disposal

1.4.6 Government Provided Facilities

PART 2 PRODUCTS

2.1 FLOWMETER

2.2 EFFLUENT SAMPLER

2.3 WWTP EFFLUENT DISCHARGE LINE

2.4 AIR RELEASE/VACUUM BREAKING VALVE

2.5 DECANT STRUCTURE DISCHARGE LINE AND WWTP RETURN LINE

PART 3 EXECUTION

3.1 FIELD QUALITY CONTROL

3.1.1 Preoperational Test

3.1.1.1 Tests

3.1.1.2 Preoperational Investigation and Test Report

3.1.2 Pressure Test

3.2 WWTP STARTUP

3.2.1 Clean Water Test

3.2.2 Initial Treatment Test

3.3 ROUTINE OPERATION

3.3.1 Effluent Compliance Sampling

3.3.2 Flow Monitoring

3.3.3 Operation and Maintenance

3.3.4 Inspections

3.4 RESPONSE TO ALARM CONDITIONS

3.5 OPERATING PERIOD

3.6 Non-Compliant Effluent Water

3.7 As-Builts

3.8 Contract Closeout

-- End of Section Table of Contents --

SECTION 44 41 13 Page 1

SECTION 44 41 13

WASTEWATER TREATMENT PLANT

PART 1 GENERAL

The Wastewater Treatment Plant (WWTP) will be a temporary plant to be provided to treat the effluent from the Confined Disposal Facility (CDF) which is a combination of groundwater, dredge water, and precipitation that falls within the CDF cells all of which will be in contact with the dredged material stored in the CDF. When the plant is in operation, it will operate 24 hours per day, seven (7) days per week.

At a minimum and in accordance with the National Pollution Discharge Elimination System (NPDES) permit, the WWTP shall have a solids removal process and granulated activated carbon (GAC) filter(s). The Contractor will be responsible for design of any additional processes, process sizing, and detailed design of Government selected processes and all supporting equipment (including any additional or alternative processes if justifiable), and for providing and competently operating all equipment, pumps, piping, appurtenances and materials necessary to treat the water from the CDF to achieve the discharge limits required by the NPDES permit. A copy of the NPDES permit is included as an Attachment to

SECTION 01 57 20 ENVIRONMENTAL PROTECTION FOR INDIANA.

The Contractor shall provide water treatment as ordered by the Government.

Water treatment may not be required every year.

As ordered by the Government, the Contractor shall install a water transfer system from the CDF east cell decant structure to the treatment plant and a return line (for treatment plant backwash water, for disposal of treated water during startup as needed, etc.) from the treatment plant to the CDF east cell. The east cell decant structure discharge pipeline to the WWTP, and the WWTP return line to the east cell will remain at the site at the end of this contract and become government property.

The Contractor shall be aware that there may be a period of overlap of service at the beginning and the end of this contract with another contractor who will be performing the same service at the site. Coordinate with the other contractor as required to provide minimum interruption in wastewater treatment service. Coordination shall include, but is not limited to, working out a schedule for the most efficient transfer of shared facilities (decant structure discharge pipe, utilities, work pad).

The Contractor is only authorized to mobilize, demobilize and operate the WWTP as described in this section, when a Notice to Proceed (NTP) has been received from U.S. Army Corps of Engineers (USACE). All equipment associated with the WWTP that is not property of the Government (Government property includes the decant structures discharge line and return line and associated connections, flow meter, effluent sampler) will be demobilized from the site at contract closeout or when water treatment is completed as appropriate.

SECTION 44 41 13 Page 2

1.1 REFERENCES

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

NATIONAL FIRE PROTECTION ASSOCIATION (NFPA)

NFPA 70 (2011) National Electrical Code

NFPA 101 (2009; TIA 09-1; TIA 09-2) Life Safety Code

The SW-846 document is continually being updated, and the most recent versions of the SW-846 test methods are available on-line at http://www.epa.gov/epaoswer/hazwaste/test/main.htm .

1.2 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. The following shall be submitted in accordance with SECTION 01 33 00 SUBMITTAL PROCEDURES.

SD-01 Preconstruction Submittals

General Schematic Drawing; G, DH, CT

The Contractor shall provide a General Schematic Drawing showing the layout of the treatment system components and influent and effluent piping. Component sizing information, dimensions and the arrangement of valves shall be illustrated in the drawing. The Schematic Drawing of the WWTP and connection shall be submitted within 45 calendar days of NTP of the task order for the wastewater treatment plant.

Safety Data Sheets

The Contractor shall submit Safety Data Sheets (SDS) for all chemicals and products brought onsite, including but not limited to treatment chemicals (i.e., acids, alkalis, polymers, etc.), activated carbon, ion exchange media, if employed.

Flowmeter and Effluent Sampler

If and when the Government supplied flowmeter(s) or effluent sampler is replaced by different equipment, the Contractor shall submit manufacturer literature and cutsheets and installation details for the effluent flowmeter and the effluent sampler. Information on the effluent flowmeter and the effluent sampler shall be submitted within 45 calendar days of replacement of the equipment.

Design and Drawings - WWTP Discharge Line; G, DC, DT

Provide a design and drawing(s) of the CDF water withdrawal and pipeline system from the existing decant structure in the east cell to the WWTP, and return pipeline from the WWTP to the CDF East Cell. The design and installation of the WWTP discharge/return lines shall be in accordance with the requirements of this Specification and Specifications SECTIONS 31 23 01 EXCAVATION, TRENCHING, AND BACKFILLING FOR UTILITIES SYSTEMS and

SECTION 44 41 13 Page 3

31 05 19 GEOTEXTILE. The design and drawing(s) must be submitted within 45 calendar days of NTP of the task order ordering the line item.

Design and Drawings - Electrical; G, DT

Provide Electrical design analysis, design documents, and design drawings required for the project.

Indicate on drawings (as applicable)

- Circuit Breaker Size and Type

- Disconnect Size and Type

- Load Calculations

- Motor Size and Type

- Transformers Size and Type

- Wire and Conduit Routing Size and Type

Provide one line diagram indicating incoming line voltage and size, capacity rating, and how temporary power will be derived. Provide calculations showing existing demand load and new demand load. Show that existing power distribution system has capacity to power existing demand load plus new demand load. Submit the design and drawing(s) within 45 calendar days of NTP of the task order ordering the line item.

Startup Test Plan; G, DH

The Contractor shall submit a Startup Test Plan including the procedures and checklist for verifying satisfactory equipment and system operation.

Identify location and method of disposal for test water. Identify types and frequency of sampling and analysis procedures for initiating treatment of the CDF effluent and to verify the system is effectively treating the water and meeting the permit limits. The Startup Test Plan of the wastewater treatment plant shall be submitted within 45 calendar days of the NTP of the task order for the wastewater treatment plant.

Treatment Plant Operator Certification and IDEM NETdmr Coordination

Provide the treatment plant certified operator name and credentials as a pre-construction submittal in accordance with the requirements in the site NPDES permit. Coordinate with the Government and Indiana Department of Environmental Management (IDEM) to have the certified operator enabled to submit NPDES monthly discharge reports on the IDEM NETdmr. Submit the certified operator name and credentials within 45 calendar days of NTP of the task order for the wastewater treatment plant.

Preoperational Test Reports

The Contractor shall submit all preoperational test reports performed on their equipment.

SD-06 Test Reports

Startup Report; G, DH

The Contractor shall submit a Startup Report to the Contracting Officer 30 calendar days after each successful startup of the wastewater treatment plant.

Pressure Test; G, DT

SECTION 44 41 13 Page 4

Perform a pressure test in accordance with paragraph 3.1.2, "Pressure Test". Submit a pressure test report to USACE within 21 calendar days of completion of the tests.

Process Upset Report

The Contractor shall follow all protocols of the NPDES permit for process upset reporting for NPDES permit limit exceedances. The Contractor shall also provide written reports of process upset conditions to the Contracting Officer within 24 hours of discovery.

Monthly Operations Summary; G, DH

The Contractor shall submit to USACE a report that will include a summary of total daily volume treated, effluent sample results, results of weekly inspections, the Monthly Data Report in accordance with SECTION 01 35 45 CHEMICAL DATA QUALITY CONTROL, and a summary of alarms and their subsequent resolution and/or corrective actions. WWTP data submission shall be coordinated with the Government's Environmental Management System (EMS). The Monthly Operations Summary shall be submitted by the end of the following month.

Discharge Monitoring Reports; G, DH

The Contractor shall complete the state and federal discharge monitoring reports (DMRs) for Industrial Discharge Permit as required in the NPDES permit. The DMRs shall be submitted to the IDEM on the IDEM NETdmr system in accordance to the schedule specified in the NPDES permit and to USACE at least one week before the DMR is due to IDEM to allow time for review and comment .

1.3 GENERAL REQUIREMENTS

1.3.1 Standard Products

Material and equipment shall be the standard products of manufacturers regularly engaged in the manufacture of the products and shall essentially duplicate items that have been in satisfactory use for at least two (2) years prior to bid opening.

1.3.2 Contractor Requirements

Contractor shall have had a cumulative minimum of five (5) years of experience in the construction and operation of water treatment plants, wastewater treatment plants, industrial wastewater treatment plants, or industrial wastewater pretreatment plants.

The certified treatment plant operator shall be certified by the state of Indiana in a classification corresponding to the classification of the wastewater treatment plant as required by IC 13-18-11-11 and 327 IAC 5-22 and shall have qualifications as established in 327 IAC 5-22-7.

Additionally, the certified treatment plant operator shall have at least five (5) years of experience with operation and/or in a position of responsible charge at wastewater treatment plant of the following types:

Class II, Class III, Class IV, Class B, Class C, or Class D as defined in 327 IAC 5-22-4 and 327 IAC 5-22-5.

SECTION 44 41 13 Page 5

1.3.3 Electrical

As required, the Contractor shall furnish and install all electrical materials and equipment for a complete and fully operable electrical service installation, including but not limited to power (as appropriate), controls, communications, and grounding, for the WWTP and shall conform to the requirements of local electrical codes, NFPA 70 , and NFPA 101 unless more stringent requirements are indicated for both indoor and outdoor electrical work within the facility. All electrical equipment shall be kept in a suitable weatherproof enclosure as appropriate.

The Contractor shall furnish and install all grounding materials (grounding rods, copper ground conductors, clamps, and accessories) necessary for a complete grounding system of all current and non-current carrying equipment designated for the treatment plant. Grounding installation shall comply with all local electrical codes.

All Electrical analysis and design documents must be in accordance with Unified Facilities Criteria (UFC) UFC 3-501-01 Electrical Engineering, UFC 3-550-01 Exterior Electrical Power Distribution and UFC 3-520-01 Interior Electrical Systems, as applicable. Use UFGS 26 20 00 Interior Distribution System and UFGS 33 71 02 Underground Electrical Distribution and other Specifications as applicable.

1.4 SYSTEM OPERATION

1.4.1 Influent Characteristics

The characteristics of the water to be treated are from samples collected from the CDF cells since 2013, which are attached at the end of this specification in Table 1 "IHC Pond Sampling Results-WWTP". The data on Table 1 can be used to get a general understanding of the water characteristics of the water in the CDF, and can expect to be generally representative of the water to be treated. However, it should be understood that water characteristics can change due to many factors, including but not limited to: time of the year, volume of groundwater discharged to the pond, dredged material physical and chemical characteristics. It is expected though not guaranteed, that the data collected at least one (1) month or more after each dredging/disposal event completed are most representative of the water to be treated.

Water will be extracted from the IHC CDF east and west dredged material disposal cells as directed by the COR via the two (2) decant structures for treatment. Water must be withdrawn in a manner that minimizes sediment resuspension and the inclusion of solids in the water stream, and must also be withdrawn in a manner that prevents a visible sheen or separate phase oil from entering the water stream.

During treatment plant operation, collect WWTP influent samples on a bi-weekly basis. Additional sampling may be required as directed by the Government during the treatment period. Additional sampling may be performed to understand variability in the influent, or to determine whether additional treatment is needed. The Government shall inform the Contractor prior to sampling to allow for preparation time. Analyze WWTP influent samples for all required parameters on the NPDES pond water treatment list. The laboratory turnaround time for any additional influent or effluent sampling outside the routine sampling shall be on a 14 day basis.

SECTION 44 41 13 Page 6

The Contractor shall collect samples of the water from the CDF pond to monitor the water quality in the pond.