11B0023-SPECS-AM16.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 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 your 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.

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 NO. 3. EFFECTIVE DATE 4. REQUISITION/PURCHASE REQ. NO. 5. PROJECT NO. (If applicable)

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

STANDARD FORM 30 (REV. 10-83)

Prescribed by GSA FAR (48 CFR) 53.243

FACILITY CODE

9A. AMENDMENT OF SOLICITATION

NO.

9B. DATED (SEE ITEM 11)

10A. MODIFICATION OF CONTRACT/ORDER NO.

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 ONLY APPLIES TO MODIFICATION OF CONTRACTS/ORDERS.

IT MODIFIES THE CONTRACT/ORDER NO. 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 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)

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 (No., 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)

NSN 7540-01-152-8070

Previous edition unusable

Channel Modification, Lower Reach, Little Mill Creek Flood Risk Management Project, New Castle County, Delaware

THIS AMENDMENT EXTENDS THE BID OPENING DATE TO 17 SEPTEMBER 2013 AT 11:00 A.M. (EST)

Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0016. Failure to acknowledge all amendments may be cause for rejection of bid.

US Army Corps of Engineers, Philadelphia District Wanamaker Building, 100 Penn Square East Philadelphia, PA 19107-3390

US Army Corps of Engineers, Philadelphia District Attn: Gregory Keaton Wanamaker Building, 100 Penn Square East Philadelphia, PA 19107-3390

W912BU-11-B-0023

08/15/2013

09/27/2011

This page was intentionally left blank for duplex printing.

Amendment No. 0016

IFB W912BU-11-B-0023

14. DESCRIPTION OF AMENDMENT (continued)

a. BID SCHEDULE: Please delete the Bid Schedule in its entirety and substitute revised Bid Schedule, annotated Amendment No. 0016, attached hereto.

b. SPECIAL CONTRACT REQUIREMENTS: Please delete all Special Contract Requirement Sections in their entirety and substitute revised Special Contract Requirement Sections, annotated Amendment No. 0016, attached hereto.

c. SPECIFICATIONS: Please delete all technical specifications (Divisions 01 through 33) in their entirety and substitute revised technical specifications, annotated Amendment No. 0016, attached hereto.

d. DRAWINGS: Please delete all drawings in their entirety and substitute the revised drawings with the latest revision date of 15 August 2013, attached hereto.

e. Please indicate receipt of this amendment on Standard Form 1442 (SOLICITATION, OFFER, AND AWARD) as Amendment No. 0016. Failure to acknowledge all amendments may be cause for rejection of the bid.

IFB W912BU-13-B-0015

00 10 00-3

BIDDING SCHEDULE

(To be attached to SF 1442)

Item Estimated Unit Estimated No. Description Quantity Unit Price Amount

1. Soil Erosion and Sediment Control 1 JOB LS $

2. Water Diversion and Dewatering 1 JOB LS $

3. Material Disposal

a. Soils 1 12,902 CY $ $

b. Soils 2 17,544 CY $ $

c. Soils 3 924 CY $ $

d. Water 1 JOB LS $

e. Solids 1 1,200 CY $ $

f. Solids 2 900 CY $ $

g. Solids 3 400 CY $ $

h. Solids 4 200 CY $ $

4. Clearing and Grubbing 5.1 AC $ $

5. Structures Monitoring 1 JOB LS $

6. Excavation 31,400 CY $ $

7. Backfilling 1,200 CY $ $

8. Riprap 9,117 TON $ $

9. Imported Topsoil 140 CY $ $

10. Seed and Mulch 1 JOB LS $

11. Reused Topsoil 500 CY $ $

12. Erosion Control Mat 11,100 SY $ $

13. Tree and Shrub Plantings 1 JOB LS $

14. Disposal Haul Road 1 JOB LS $

15. Bioretention Basin Relocation 1 JOB LS $

16. Sanitary and Storm Sewer Modifications 1 JOB LS $

17. Fencing 1 JOB LS $

TOTAL ESTIMATED BID AMOUNT $_________

NOTE: Bidders must bid on all items.

SPECIAL CONTRACT REQUIREMENTS

TABLE OF CONTENTS

SPECIAL CONTRACT REQUIREMENTS

00 73 00 SPECIAL CLAUSES

00 73 05 CONTRACT ADMINISTRATION

00 73 15 WAGE RATES

00 73 25 REGIONS FOR THE CONSTRUCTION EQUIPMENT OWNERSHIP AND

OPERATION EXPENSE SCHEDULE

00 73 41 BORING LOGS

00 73 60 GREEN TECHNOLOGY: THE DELAWARE URBAN RUNOFF MANAGEMENT APPROACH

00 73 72 CHEMICAL SAMPLING AND TESTING REPORT

SECTION 00 73 00

SPECIAL CLAUSES

INDEX

PARA TITLE

SC-1 COMMENCEMENT, PROSECUTION AND COMPLETION OF WORK

SC-2 LIQUIDATED DAMAGES - CONSTRUCTION

SC-3 CONTRACT DRAWINGS, MAPS AND SPECIFICATIONS

SC-4 PHYSICAL CONDITIONS

SC-5 DAMAGE TO WORK

SC-6 LAYOUT OF WORK

SC-7 PERFORMANCE OF WORK BY THE CONTRACTOR

SC-8 ENVIRONMENTAL LITIGATION

SC-9 QUANTITY SURVEYS

SC-10 EQUIPMENT OWNERSHIP AND OPERATING EXPENSE SCHEDULE

SC-11 PERFORMANCE EVALUATION OF CONTRACTOR

SC-12 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

SC-13 INSURANCE REQUIREMENTS

Section 00 73 00 Page 1

SPECIAL CLAUSES

SC-1 COMMENCEMENT, PROSECUTION, AND COMPLETION OF WORK

The Contractor shall be required to (a) commence work under this contract within 10 calendar days after the Contractor receives the notice to proceed, (b) prosecute the work diligently, and (c) complete and have ready for use all work included in the contract, not later than 365 calendar days after the Contractor receives the notice to proceed.

The time stated for completion shall include final cleanup of the premises.

SC-2 LIQUIDATED DAMAGES - CONSTRUCTION

a. If the Contractor fails to complete the base bid work within the time specified above, the Contractor shall pay to the Government as liquidated damages, the sum of $1,200 for each calendar day of delay.

b. If the Government terminates the Contractor's right to proceed, the resulting damage will consist of liquidated damages until such reasonable time as may be required for final completion of the work together with any increased costs occasioned the Government in completing the work.

c. If the Government does not terminate the Contractor's right to proceed, the resulting damage will consist of liquidated damages until the work is completed or accepted.

SC-3 CONTRACT DRAWINGS, MAPS AND SPECIFICATIONS

a. Upon obtaining the plans and specifications, the Contractor shall:

(1) Immediately check the specifications and all drawings;

(2) Compare the specifications and all drawings and verify the figures before laying out the work;

(3) Promptly notify the Contracting Officer of any discrepancies; and

(4) Be responsible for any errors which might have been avoided by complying with this paragraph

b. Large scale drawings shall, in general, govern small scale drawings.

Figures marked on drawings shall, in general, be followed in preference to scale measurements.

c. Omissions from the drawings or specifications or the misdescription of details of work which are manifestly necessary to carry out the intent of the drawings and specifications, or which are customarily performed, shall not relieve the contractor from performing such omitted or misdescribed details of the work, but shall be performed as if fully and correctly set forth and described in the drawings and specifications.

d. The work shall conform to the specifications and the contract drawings identified on the following, all of which are available in electronic bid set format on the internet at the following address: https://www.fbo.gov.

Drawings are titled: Channel Modification, Lower Reach, Little Mill Creek, Flood Risk Management Project, New Castle County, Delaware have the drawing numbers, subtitles, and dates as listed on Sheet Drawing Number G-100.

Section 00 73 00 Page 2

SC-4 PHYSICAL CONDITIONS

Data and information furnished or referred to below is for the Contractor's information. The Government shall not be responsible for any interpretation of or conclusion drawn from the data or information by the Contractor.

a. The indications of physical conditions on the reference drawings and in the specifications are the result of site investigations by topographic and field surveys, and of various subsurface explorations. The aerial topographic mapping information is dated November 2007. The field survey information which established horizontal control and channel cross section data is dated 2010. The subsurface exploration consisted of the following:

two borings (TB-1 and TB-2) performed in May 1998; one boring (EKB-08) performed in August 1993; four test pits (EKP-01 through EKP-04) performed in December 1994; and seventeen hand auger borings (EKA-01 through EKA-17) performed in April 2011. Subsurface exploration data can be found in specification Section 00 73 41 BORING LOGS.

b. Weather Conditions. The climate of the area is referred to as "continental" by climatologists, characterized by cold winters and moderately hot summers. Complete weather records and reports may be obtained from the local U.S. Weather Bureau Office nearest to the work site. The Contractor shall satisfy himself as to the hazards likely to arise from weather conditions during the construction period.

c. Transportation Facilities. The work site is accessible from Delaware Route 4, Maryland Avenue. The Contractor shall be responsible for all investigations of load carrying capacities of bridges and roadways.

d. Survey Controls. All horizontal and vertical control will be established by the Philadelphia District Corps of Engineers Surveys Section in the vicinity of the project, after contract award and in coordination with the Contractor. The Contractor shall contact the Philadelphia District Surveys Section at least 10 business days prior to the start of Contractor survey and/or layout operations, to determine the best locations for the control points based on project requirements. The District Surveys Section will establish up to 4 project control points in locations that are mutually agreed upon by the Contractor and the Surveys Section. The points of contact in the District Surveys Section for this project are Jeff McAleer at 267-446-2417 and Stephen Farrell at 215-656-6753.

e. Disposal Areas: The following Government-furnished disposal areas are available for use under this contract:

(1) Wilmington Harbor South.

f. Magnitude of the Contract Work. The estimated value of the contract work is $1,000,000 to $5,000,000.

g. Hours of Work. Unless otherwise specified, the Contractor shall be permitted to perform the contract work between the hours of 7:45 am and 4:30 pm, Monday through Friday. Federal holidays (New Year's Day, Martin Luther King Jr's Birthday, Presidents Day, Memorial Day, Independence Day, Labor Day, Columbus Day, Veterans Day, Thanksgiving Day, and Christmas Day) that fall within the work week will not be considered as work days. Prior to performing any work during hours other than those specified, the Contractor shall submit an overtime request to the Contracting Officer for review and approval. Overtime requests shall be submitted not less than 24

Section 00 73 00 Page 3 hours prior to the time the Contractor desires to perform the overtime work. The Contractor shall provide at least a 24 hour advanced notification to establish when on-site work will commence and prior to restarting on-site work following any stoppage of work lasting longer than five normal workdays. Notification shall be provided by phone, or person, or in writing, and shall be given directly to the Contracting Officer.

SC-5 DAMAGE TO WORK

The responsibility for damage to any part of the permanent work shall be as set forth in the clause of the contract entitled "Permits and Responsibilities". However, if, in the judgement of the Contracting Officer, any part of the permanent work performed by the Contractor is damaged by flood or hurricane, which damage is not due to the failure of the Contractor to take reasonable precautions or to exercise sound engineering and construction practices in the conduct of the work, the Contractor shall make the repairs as ordered by the Contracting Officer and full compensation for such repairs will be made at the applicable contract unit or lump sum prices as fixed and established in the contract. If, in the opinion of the Contracting Officer, there are no contract unit or lump sum prices applicable to any part of such work, and equitable adjustment pursuant to Contract Clause entitled "Changes," will be made as full compensation for the repairs of that part of the permanent work for which there are no applicable contract unit or lump sum prices. Except as herein provided, damages to all work (including temporary construction), utilities, materials, equipment and plant shall be repaired to the satisfaction of the Contracting Officer at the Contractor's expense regardless of the cause of such damage. (CENAP)

SC-6 LAYOUT OF WORK

The Contractor shall lay out its work from the Government-established baselines and benchmarks provided (see paragraph SC-5.d above, entitled "Survey Controls"), and shall be responsible for all measurements in connection with the layout. The Contractor shall furnish, at its own expense, all stakes, templates, platforms, equipment, tools, materials, and labor required to lay out any part of the work. The Contractor shall be responsible for executing the work to the lines and grades that may be established or indicated by the Contracting Officer. The Contractor shall also be responsible for maintaining and preserving all stakes and other marks established by the Contracting Officer until authorized to remove them. If such marks are destroyed by the Contractor or through its negligence before their removal is authorized, the Contracting Officer may replace them and deduct the expense of the replacement from any amounts due or to become due to the Contractor. All quantity surveys shall be conducted by a licensed Surveyor, currently licensed in the State of Delaware, with at least 10 years of current experience.

SC-7 PERFORMANCE OF WORK BY THE CONTRACTOR (APR 1984)

The Contractor shall perform on the site, and with its own organization, work equivalent to at least fifty (50) percent of the total amount of work to be performed under the contract. This percentage may be reduced by a supplemental agreement to this contract if, during performing the work, the Contractor requests a reduction and the Contracting Officer determines that the reduction would be to the advantage of the Government. (FAR 52.236-1)

Section 00 73 00 Page 4

SC-8 ENVIRONMENTAL LITIGATION (1974 NOV OCE)

a. If the performance of all or any part of the work is suspended, delayed, or interrupted due to an order of a court of competent jurisdiction as a result of environmental litigation, as defined below, the Contracting Officer, at the request of the Contractor, shall determine whether the order is due in any part to the acts or omissions of the Contractor or a Subcontractor at any tier not required by the terms of the contract. If it is determined that the order is not due in any part to acts or omissions of the Contractor or a Subcontractor at any tier other than as required by the terms of this contract, such suspension, delay, or interruption shall be considered as if ordered by the Contracting Officer in the administration of this contract under the terms of the SUSPENSION OF WORK clause of this contract. The period of such suspension, delay, or interruption shall be considered unreasonable, and an adjustment shall be made for any increase in the cost of performance of this contract (excluding profit) as provided in that clause, subject to all the provisions thereof.

b. The term "environmental litigation", as used herein, means a lawsuit alleging that the work will have an adverse effect on the environment or that the Government has not duly considered, either substantively or procedurally, the effect of the work on the environment. (CENAP)

SC-9 QUANTITY SURVEYS

a. Quantity surveys shall be conducted, and the data derived from these surveys shall be used in computing the quantities of work performed and the actual construction completed and in place.

b. All quantity surveys shall be conducted by a licensed Surveyor, currently licensed in the State of Delaware, with at least 10 years of current experience.

c. The Contractor shall conduct the original and final surveys and make the computations based on them. The Contractor shall conduct the surveys for any periods for which progress payments are requested and shall make the computations based on these surveys. All surveys conducted by the Contractor shall be conducted under the direction of a representative of the Contracting Officer, unless the Contracting Officer waives this requirement in a specific instance.

d. Promptly upon completing a survey, the Contractor shall furnish the originals of all field notes and all other records relating to the survey or to the layout of the work to the Contracting Officer, who shall use them as necessary to determine the amount of progress payments. The Contractor shall retain copies of all such material furnished to the Contracting Officer.

SC-10 EQUIPMENT OWNERSHIP AND OPERATING EXPENSE SCHEDULE (MAR 1995)

a. This clause does not apply to terminations. See 52.249-5000, Basis for Settlement of Proposals, and FAR Part 49.

b. Allowable cost for construction and marine plant and equipment in sound workable condition owned or controlled and furnished by the Contractor or

Section 00 73 00 Page 5 sub-contractor at any tier shall be based on actual cost data for each piece of equipment or groups of similar serial and series for which the Government can determine both ownership and operating costs from the Contractor's accounting records. When both ownership and operating costs cannot be determined for any piece of equipment or groups of similar serial or seriesequipment from the Contractor's accounting records, costs for that equipment shall be based upon the applicable provisions of EP 1110-1-8, "Construction Equipment Ownership and Operating Expense Schedule," Region II. Working conditions shall be considered to be average for determining equipment rates using the schedule unless specified otherwise by the Contracting Officer. For equipment not included in the schedule, rates for comparable pieces of equipment may be used or a rate may be developed using the formula provided in the schedule. For forward pricing, the schedule in effect at the time of negotiations shall apply. For retrospective pricing, the schedule in effect at the time the work was performed shall apply.

c. Equipment rental costs are allowable, subject to the provisions of FAR 31.105(d)(ii) and FAR 31.205-36. Rates for equipment rented from an organization under common control, lease-purchase arrangements, and sale-leaseback arrangements, will be determined using the schedule, except that actual rates will be used for equipment leased from an organization under common control that has an established practice of leasing the same or similar equipment to unaffiliated lessees.

d. When actual equipment costs are proposed and the total amount of the pricing action exceeds the small purchase threshold, the Contracting Officer shall request the Contractor to submit either certified cost or pricing data, or partial/limited data, as appropriate. The data shall be submitted on Standard Form 1411, "Contract Pricing Proposal Cover Sheet."

UAI 31.105-101)

NOTE #1: The small purchase threshold is $150,000.

NOTE #2: By submitting cost or pricing data, the Contractor grants to the Contracting Officer or an authorizing representative the right to examine those books, records, documents and other supporting data that will permit evaluation of the proposed equipment costs. This right shall extend for two years after expiration of contract performance. After price agreement the Contractor shall certify that the equipment costs or pricing data submitted are accurate, complete and current.

SC-11 PERFORMANCE EVALUATION OF CONTRACTOR

a. As a minimum, the Contractor's performance will be evaluated upon final acceptance of the work. However, interim evaluation may be prepared at any time during contract performance when determined to be in the best interest of the Government.

b. The format for the evaluation will be DD 2626, and the Contractor will be rated either outstanding, above average, satisfactory, marginal or unsatisfactory in the areas of Contractor Quality Control, Timely Performance, Effectiveness of Management, Compliance with Labor Standards, and Compliance with Safety Standards. The Contractor will be advised of any unsatisfactory rating, either in an individual element or in the overall rating, prior to completing the evaluation, and all Contractor comments will be made a part of the official record. Performance Evaluation Reports will be available to all DOD Contracting offices for their future use in determining Contractor responsibility, in compliance with ER 415-1-17.

Section 00 73 00 Page 6

(CENAP)

SC-12 TIME EXTENSIONS FOR UNUSUALLY SEVERE WEATHER

a. This clause specifies the procedure for determination of time extensions for unusually severe weather in accordance with the Contract Clause entitled: "Default (Fixed-Price Construction)". In order for the Contracting Officer to award a time extension under this clause, the following conditions must be satisfied:

(1) The weather experienced at the project site during the contract period must be found to be unusually severe, that is, more severe than the adverse weather anticipated for the project location during any given month.

(2) The unusually severe weather must actually cause a delay to the completion of the project. The delay must be beyond the control and without the fault or negligence of the Contractor.

b. The following schedule of monthly anticipated adverse weather delays is based on National Oceanic and Atmospheric Administration (NOAA) or similar data for the project location and will constitute the base line for monthly weather time evaluations. The Contractor's progress schedule must reflect these anticipated adverse weather delays in all weather dependent activities. For the purpose of this contract, unusually severe weather is defined as daily precipitation equal to or exceeding 0.5 inches and/or maximum daily temperature not exceeding 32 degrees F.

MONTHLY ANTICIPATED ADVERSE WEATHER DELAY

WORK DAYS BASED ON (5) DAY WORK WEEK

JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC

7 4 2 2 2 2 2 2 2 2 2 3

c. Upon acknowledgment of the Notice to Proceed (NTP) and continuing throughout the contract, the Contractor shall record on the daily CQC report, the occurrence of adverse weather and resultant impact to normal scheduled work. Actual adverse weather days must prevent work on critical activities for 50 percent or more of the Contractor's scheduled work day.

The number of actual adverse weather delay days shall include days impacted by actual adverse weather (even if adverse weather occurred in previous month), be calculated chronologically from the first to the last day of each month, and be recorded as full days. If the number of actual adverse weather delay days exceeds the number of days anticipated in paragraph b.

above, the Contracting Officer will convert any qualifying delays to calendar days, giving full consideration for equivalent fair weather work days, and issue a modification in accordance with the contract clause entitled: "Default (Fixed Price Construction)".

SC-13 INSURANCE REQUIREMENTS

Evidence of the following types of insurance shall be provided to the Contracting Officer prior to commencement of work and shall be maintained throughout the period of performance.

a. General Liability Insurance (Comprehensive form of policy): Bodily Injury Liability - $500,000 per occurrence.

Section 00 73 00 Page 7

b. Automobile Liability Insurance (Comprehensive form of policy): Bodily Injury Liability - $200,000 per person and $500,000 per accident. Property Damage Liability - $20,000 per accident.

c. Workmen's Compensation and Employer's Liability Insurance: Compliance with applicable workmen's compensation and occupational disease statutes is required. Employer's liability coverage in the minimum amount of $100,000 is also required."

-- End of Section --

Section 00 73 00 Page 8

SECTION 00 73 05-1

CONTRACT ADMINISTRATION DATA

G.1 ACCOUNTING AND APPROPRIATION DATA:

TO BE FURNISHED AT TIME OF AWARD

G.2 CONTRACT ADMINISTRATION IS RETAINED BY THE CONTRACTING OFFICER:

US Army Engineer District, Philadelphia ATTN: CENAP-CT-C (Gregory C. Keaton) Wanamaker Building, 100 Penn Square East Philadelphia, Pennsylvania 19107-3390

(215) 656-3826

G.3 PAYMENT BY:

US Army Corps of Engineers

FINANCE CENTER

5720 Integrity Drive

Millington, Tennessee 38054-5005

G.4 BILLING ADDRESS:

Invoices shall be forwarded as follows:

US Army Engineer District, Philadelphia Wanamaker Building, 100 Penn Square East Philadelphia, Pennsylvania 19107-3390

G.5 TECHNICAL INQUIRIES:

All technical inquiries should be sent in writing to:

Pre-Award: Gregory C. Keaton (phone) 215-656-3826 (fax) 215-656-6780 Post Award: (To be furnished upon award)

W912BU-11-B-0023 00 73 05-1

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Section 01 73 15 Page

SECTION 00 73 15

WAGE RATES

General Decision Number: DE130009 08/09/2013 DE9

Superseded General Decision Number: DE20120009

State: Delaware

Construction Type: Heavy

County: New Castle County in Delaware.

Modification Number Publication Date 0 01/04/2013 1 05/31/2013 2 07/19/2013 3 08/09/2013

BRDE0001-003 05/01/2012

Rates Fringes

BRICKLAYER.......................$ 28.90 17.33

CARP0454-005 07/01/2012

Rates Fringes

PILEDRIVERMAN....................$ 38.80 29.07

Footnote: PAID HOLIDAYS: Washington's Birthday, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, and Christmas Day (provided the employee works the day before the holiday and the day after the holiday).

CARP0626-002 05/01/2013

Rates Fringes

Carpenter:

Carpenter...................$ 30.57 20.09 Scaffold Building...........$ 31.32 20.09

CARP1906-007 05/01/2011

Rates Fringes

MILLWRIGHT.......................$ 33.47 27.23

ELEC0313-001 06/01/2013

Rates Fringes

ELECTRICIAN......................$ 36.44 69.33%

ENGI0542-006 05/01/2011

Rates Fringes

Operating Engineers:

Bulldozer and Forklift......$ 34.54 21.27

FOOTNOTE A: PAID HOLIDAYS: New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christams Day, and Election Day -- provided the employee works the scheduled work day before and after the holiday.

IRON0451-002 07/01/2012

Rates Fringes

Ironworkers:

Ornamental, Reinforcing, Rigger and Structural.......$ 33.60 25.40

LABO0199-004 05/01/2012

Rates Fringes

Laborers:

Brick Mason Tender..........$ 23.00 14.85 Common or General...........$ 22.80 13.30

* PAIN0021-027 05/01/2013

Rates Fringes

Painter, Bridge..................$ 41.58 16.83

SUDE2007-005 08/16/2007

Rates Fringes

CEMENT MASON/CONCRETE FINISHER...$ 22.92 2.88

LABORER: Pipelayer..............$ 17.43 4.51

OPERATOR: Backhoe...............$ 24.58 9.87

OPERATOR: Crane.................$ 23.83 12.13

OPERATOR: Excavator.............$ 24.99 3.85

OPERATOR: Loader................$ 21.83 7.30

OPERATOR: Roller................$ 18.94 3.25

TRUCK DRIVER: Dump Truck........$ 16.11 1.68

WELDERS - Receive rate prescribed for craft performing operation to which welding is incidental.

Unlisted classifications needed for work not included within the scope of the classifications listed may be added after award only as provided in the labor standards contract clauses (29CFR 5.5 (a) (1) (ii)).

The body of each wage determination lists the classification and wage rates that have been found to be prevailing for the cited type(s) of construction in the area covered by the wage determination. The classifications are listed in alphabetical order of "identifiers" that indicate whether the particular rate is union or non-union.

Union Identifiers

An identifier enclosed in dotted lines beginning with characters other than "SU" denotes that the union classification and rate have found to be prevailing for that classification. Example: PLUM0198-005 07/01/2011. The first four letters , PLUM, indicate the international union and the four-digit number, 0198, that follows indicates the local union number or district council number where applicable , i.e., Plumbers Local 0198. The next number, 005 in the example, is an internal number used in processing the wage determination.

The date, 07/01/2011, following these characters is the effective date of the most current negotiated rate/collective bargaining agreement which would be July 1, 2011 in the above example.

Union prevailing wage rates will be updated to reflect any changes in the collective bargaining agreements governing the rates.

0000/9999: weighted union wage rates will be published annually each January.

Non-Union Identifiers

Classifications listed under an "SU" identifier were derived from survey data by computing average rates and are not union rates; however, the data used in computing these rates may include both union and non-union data. Example: SULA2004-007 5/13/2010. SU indicates the rates are not union majority rates, LA indicates the State of Louisiana; 2004 is the year of the survey; and 007 is an internal number used in producing the wage determination. A 1993 or later date, 5/13/2010, indicates the classifications and rates under that identifier were issued as a General Wage Determination on that date.

Survey wage rates will remain in effect and will not change until a new survey is conducted.

WAGE DETERMINATION APPEALS PROCESS

1.) Has there been an initial decision in the matter? This can be:

* an existing published wage determination

* a survey underlying a wage determination

* a Wage and Hour Division letter setting forth a position on a wage determination matter

* a conformance (additional classification and rate) ruling

On survey related matters, initial contact, including requests for summaries of surveys, should be with the Wage and Hour Regional Office for the area in which the survey was conducted because those Regional Offices have responsibility for the Davis-Bacon survey program. If the response from this initial contact is not satisfactory, then the process described in 2.)

and 3.) should be followed.

With regard to any other matter not yet ripe for the formal process described here, initial contact should be with the Branch of Construction Wage Determinations. Write to:

Branch of Construction Wage Determinations Wage and Hour Division U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

2.) If the answer to the question in 1.) is yes, then an interested party (those affected by the action) can request review and reconsideration from the Wage and Hour Administrator (See 29 CFR Part 1.8 and 29 CFR Part 7). Write to:

Wage and Hour Administrator U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

The request should be accompanied by a full statement of the interested party's position and by any information (wage payment data, project description, area practice material, etc.) that the requestor considers relevant to the issue.

3.) If the decision of the Administrator is not favorable, an interested party may appeal directly to the Administrative

Review Board (formerly the Wage Appeals Board). Write to:

Administrative Review Board U.S. Department of Labor 200 Constitution Avenue, N.W.

Washington, DC 20210

4.) All decisions by the Administrative Review Board are final.

END OF GENERAL DECISION

Section 00 73 25

REGIONS FOR THE CONSTRUCTION EQUIPMENT OWNERSHIP

AND OPERATING EXPENSE SCHEDULE

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GREEN TECHNOLOGY:

THE DELAWARE URBAN RUNOFF

MANAGEMENT APPROACH

STANDARDS, SPECIFICATIONS AND DETAILS FOR GREEN

TECHNOLOGY BMPs TO MINIMIZE STORMWATER IMPACTS

FROM LAND DEVELOPMENT

William C. Lucas

INTEGRATED LAND MANAGEMENT, INC.

Prepared For

Delaware Department of Natural Resources And Environmental Control

Division of Soil And Water Conservation

JUNE 2005

Green Technology: Standards and Specifications and Details for BMPs Preface

JUNE 2005 i

PAGE

PREFACE………………....……………………..…….…….……...…………...……………..iii

CHAPTER 1 CONSTRUCTION AND TESTING SPECIFICATIONS

1.1 INTRODUCTION…………..……………………..……..……..……..….………………... 1-1

1.2 CONSTRUCTION AND TESTING SPECIFICATIONS.…….…………....……………. 1-1

CHAPTER 2 DESIGN STANDARDS AND SPECIFICATIONS

2.1 INTRODUCTION..………………………………………………………………….…….... 2-1

2.2 ACCESS AND MAINTENANCE…..….………………………………………...………… 2-4

2.3 FILTER STRIPS…..………………………………………………………………………... 2-5

2.4 BIOFILTRATION SWALES….….……………………………………………....………... 2-8

2.5 BIORETENTION FACILITIES…..….....….……………………….…………………….. 2-16

2.6 INFILTRATION TRENCHES…..…...….……….…………………….………………….. 2-25

CHAPTER 3 LANDSCAPING STANDARDS AND SPECIFICATIONS

3.1 INTRODUCTION.…………………………………………………………………………... 3-1

3.2 PLANT SELECTION BY STRUCTURAL ATTRIBUTES ………...………………...…. 3-2

3.3 PLANT SELECTION BY TOLERANCE FACTORS…….…………..……….…………. 3-3

3.4 PLANT SELECTION BY TOLERANCE ZONE…….…………..……….…………….... 3-5

3.5 PLANT SELECTION BY SOURCES…….…………..………………………..………..... 3-9

3.6 PLANTING PLAN………………………………………….…………..……….………..... 3-14

3.7 PLANT ORDERING………………………………………….…………..……………….. 3-15

3.8 PLANT MATERIAL SPECIFICATIONS………………….…………..……………….... 3-15

3.9 PLANTING PRACTICES………………………………………………..……………….. 3-16

3.10 ESTABLISHMENT AND MAINTENANCE MEASURES.…………..………………... 3-21

APPENDIX A: SUMMARY OF BMP STANDARDS……………………..………………….. A-1

APPENDIX B: TYPICAL DETAILS……………………………………………………………....B-1

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LIST OF TABLES

TABLE 3-1: Grasses, Sedges, Rushes and Wetland Plants for Green Technology BMPs………………………………….…………………… 3-10

TABLE 3-2: Herbaceous Perennials for Green Technology BMPs…..…………………..… 3-11

TABLE 3-3: Woody Shrubs For Green Technology BMPs …………...………………….… 3-12

TABLE 3-4: Understory and Canopy Trees For Green Technology BMPs……………..… 3-13

LIST OF TYPICAL DETAILS

DETAIL 2.3.1 FILTER STRIP DESIGN CRITERIA

DETAIL 2.3.2 FILTER STRIP SECTION

DETAIL 2.3.3 LEVEL SPREADERS

DETAIL 2.4.1 BIOFILTRATION SWALE

DETAIL 2.4.2 GABION WEIR CHECK DAM

DETAIL 2.4.3 GABION WEIR CHECK DAM - SECTION

DETAIL 2.4.4 GRADE DROP CHECK DAM

DETAIL 2.4.5 GRADE DROP CHECK DAM - SECTION

DETAIL 2.4.6 GABION CHECK DAM W/PVC WYE ORIFICES - SECTION

DETAIL 2.4.7 GABION CHECK DAM W/PVC WYE ORIFICES – PROFILE

DETAIL 2.4.8 CHECK DAM WITH INFILTRATION TRENCH - PROFILE

DETAIL 2.5.1 STANDARD BIORETENTION FACILITY

DETAIL 2.5.2 STANDARD BIORETENTION FACILITY - PROFILE

DETAIL 2.5.3 BIORETENTION FACILITY W/UNDERDRAIN

DETAIL 2.5.4 BIORETENTION FACILITY W/UNDERDRAIN & OUTLET - PROFILE

DETAIL 2.5.5 DIVERSION STRUCTURE W/FOREBAY

DETAIL 2.5.6 DIVERSION STRUCTURE - PLAN

DETAIL 2.5.7 DIVERSION STRUCTURE - SECTION

DETAIL 2.6.1 INFILTRATION TRENCH AND OBSERVATION PORT

JUNE 2005 iii

PREFACE

This Manual is written as the companion document to “Green Technology: The Delaware

Urban Runoff Management Approach, a Technical Manual For Designing Nonstructural BMPs to Minimize Stormwater Impacts from Land Development”. The intent in this Manual is to provide direct guidance on specific design criteria and standards for Green Technology BMPs, as well as their design details and specifications.

It is recommended that the reader refer to the Technical Manual for background and discussion on the elements addressed in this Manual. In this way, the designer will gain a better appreciation of the issues and the processes underlying these design standards, and thus be better prepared to utilize Green Technology BMPs most effectively.

I would like to express my thanks to Gary Burcham, ASLA, for providing a thorough review of the Chapter on landscaping. I also would like to thank Calvin Ernst for his advice on grasses, and his permission to use his plant pictures. Chris Miller deserves recognition for his advice and guidance on meadow establishment. The Rutgers University Native Meadows short course offered by Dr. Steven Handel also deserves mention as an excellent source for those interested in establishing native landscapes. These individuals provide a wealth of information and their resources are invaluable for anyone involved in the field of native meadow establishment.

Green Technology; Standards and Specifications and Details for BMPs Chapter 1

JUNE 2005 1-1

CHAPTER 1 CONSTRUCTION AND TESTING SPECIFICATIONS

1.1 INTRODUCTION

It is essential that the proper materials and design standards are applied in constructing the Green Technology BMPs set forth in this Manual. As equally important, proper procedures for testing and installation of the materials must be documented to ensure their long-term function. The following sections set forth the specifications for construction and testing of materials used in BMP construction. Standards and Specifications for Materials, Design and Maintenance for each BMP are addressed specifically in subsequent Sections.

Reference citations have been omitted, since most of the specifications and standards have been derived from many different sources with similar conclusions. Appendix “A” summarizes many of the standards and specifications to be found in the literature, most of which are available over the internet, that were investigated in preparing this Manual.

1.2 CONSTRUCTION AND TESTING SPECIFICATIONS

The following construction specifications set forth the required procedures needed to install Green Technology BMPs. Unless otherwise approved by the delegated review agency in response to submittals prepared by personnel qualified as stated in the Delaware Sediment & Stormwater Regulations, the following construction procedures shall apply to all Green Technology BMPs:

1.2.1 Construction Sequence

In the case of facilities that rely on infiltration such as infiltration trenches, bioretention facilities and dry bioswales, it is essential that all construction equipment and earth disturbance activities be kept away from the site of the BMP during overall site construction. This is particularly important if native soils are to be used for infiltration from bioretention facilities or bioswales. The site of such facilities shall be staked in the field prior to any earth moving, and suitable barrier fence (Amoco Hi-Vu or equivalent) shall be placed around the perimeter at least 10 feet from the site of such facilities.

If possible, construction of these facilities should be staged so that they are installed at the end of the project, when upslope areas have been stabilized. This avoids much of the potential concern about clogging due to sediment-laden runoff. However, since it is rarely practical to delay installation of most BMPs until the end of a project under normal construction practices, the measures set forth below should be followed for BMPs constructed during site disturbance activities.

1.2.2 Runoff Diversion

If Green Technology BMPs are to be installed before the completion of a project, adequate pretreatment measures as specified in the Delaware Erosion and Sediment Control

JUNE 2005 1-2

Handbook must be installed to intercept, divert and/or filter runoff prior to it entering the facility. Until the facility is constructed, runoff from upslope areas should be diverted away from the BMP to keep the work area clean and relatively dry.

In particular, sediment-laden runoff must be kept from the site of any infiltrating facility during construction. Sediments will rapidly clog the open porous soil structure required for such practices to function. Once clogged, the only way to renovate the soils is to remove them completely, and replace with imported soils of suitable characteristics. Even in this event, the properties of the replaced soil will be altered and compacted by its movement, reducing its performance. For this reason, areas for infiltration facilities should not be used for sediment trapping or conveyance unless absolutely necessary, and approved by DNREC.

Where an infiltration facility location is intended for use as a temporary sediment control structure, the bottom elevation of the temporary structure should be at least one foot above the design bottom elevation of the facility. This permits the removal of clogged soils to expose relatively undisturbed soils underneath. In sandy soils where the extent of clogging can extend considerably farther, this distance should be increased to at least two feet. If such infiltration areas are used for sediment trapping or conveyance, it may be necessary to retest the infiltration rates.

1.2.3 Construction Compaction

It is essential to minimize compaction at the base of infiltrating facilities and in their required soil media. Excessive compaction will contribute to design failure. In general, heavy equipment should never traverse areas intended for infiltrating trenches or bioretention facilities. Use of equipment with tracks or tires will cause too much compaction at the base of the facility and is not acceptable. An excavation trackhoe working from outside the footprint of the facility is the only type of equipment acceptable for use in removing the original soil. Areas set aside for infiltrating facilities shall be isolated by barrier fencing before any site disturbance.

1.2.4 Subgrade Preparation and Backfilling

For infiltrating facilities, scarify the subgrade of the facility before backfilling the required sand layer, stone layer, or underdrain gravel. Pump any ponded water and allow the surface to dry before scarifying (rototilling) the base. When backfilling the planting media over the sand layer, first place 3 to 4 inches of media over the sand, then rototill the sand/media to create a gradation zone. Backfill the remaining media to final grade.

When backfilling a bioretention facility, place the media in lifts of approximately 12”.

Heavy equipment must not be used on the backfilled media. Place bioretention media with a trackhoe excavator at the perimeter. Heavy equipment can be used only around the perimeter of the basin to supply media and sand.

JUNE 2005 1-3

1.2.5 Geotextile Installation-Drainage Fabric

The manufacturer’s recommendations must be followed when installing drainage fabric geotextiles. Its general purpose is to separate the stone reservoir or soil media bed to prevent migration of fine materials. The width of the drainage geotextile must include sufficient material to conform to irregularities in the trench or media bed perimeter. The top must overlap a minimum of 6 inches. Stones or other anchoring objects can be placed on the fabric at the edge of the trench or media bed to prevent displacement during the backfilling operation. When rolls of drainage fabric geotextile need to be joined, the manufacturer’s recommendations shall be followed.

1.2.6 Infiltration and Soil Profile Testing

Proper infiltration testing is a key element of infiltration and bioretention facility design. Single-ring infiltrometer tests shall be used for the facilities contemplated in this Manual. Testing and design of Green Technology BMP’s that rely on infiltration shall be consistent with current DNREC policies. In the case of bioretention facilities, it is generally recommended that there be at least one infiltrometer test for every 600 square feet of bioretention area. The final field rate calculated by these methods must exceed 1.02 inches per hour for any infiltrating facility, unless underdrains are provided.

It is also necessary that at least one test pit be excavated at each infiltrating BMP location to determine the soil profile through the facility and the depth to seasonal high water table (SHWT). For linear facilities, the test pit shall be located at a point one quarter of the total length from the lowest point. This ensures that results take into account more conservative conditions. Results from the test pit shall be logged by a professional soil scientist, and shall include the following information: depth to SHWT, Standard Penetration Testing every 2 feet, USDA Soil or Unified Soil Classifications, and descriptions of each horizon.

Testing of infiltration facilities should conform to the following specifications:

PROPERTY BMP TYPE GENERAL

RECOMMENDATION

ADJUSTMENT

REQUIREMENT

Infiltrometer Test Infiltration Trench Every 200 feet per DNREC policy

Infiltrometer Test Bioswale w/Infiltration Every 400 feet per DNREC policy Infiltrometer Test Bioretention Facility Every 600 sq. feet per DNREC policy

Green Technology: Standards, Specifications, and Details for BMPs Chapter 2

JUNE 2005 2-4

CHAPTER 2 DESIGN STANDARDS AND SPECIFICATIONS

2.1 INTRODUCTION

There is considerable variation in the specific design parameters presented in the extensive literature on design standards and specifications adopted in many jurisdictions for Green Technology BMPs. The literature researched for this Manual is summarized in tabular form in Appendix A to facilitate comparison of these standards and specifications. Constructive standards are incorporated into these criteria where appropriate. However, many elements required for comprehensive design are missing from these other sources. Furthermore, as a result of the findings discussed in the Technical Manual, many standards set forth in the other literature differ in important ways from that set forth in this Manual.

In particular, it must be recognized that Green Technology has been formulated to explicitly address site-specific design constraints and thus avoid a “rule of thumb” approach. For this reason, specific “optimal” design standards do not exist, since each situation will have its own best solution. Instead, this Manual establishes certain design standard limits beyond which a redesign is necessary to ensure proper functioning of the BMP involved.

The following Sections set forth the particular design standards to be applied to each Green Technology BMP. The standards followed in this Chapter address design rates, pretreatment measures and volumes, spatial design parameters, and specific maintenance measures for each BMP.

2.2 ACCESS AND MAINTENANCE

Green Technology BMPs must incorporate design standards and specifications that include effective maintenance measures. In particular, the issue of access is most important.

Lack of legal and/or physical access to BMP facilities is most often cited by public agencies charged with the responsibility to maintain such facilities after they have been constructed.

For filter strips, access is generally not a major issue, since filter strips are located close to accessways by design, and maintenance is generally limited to landscaping activities that do not require heavy equipment. However, dedicated access to gain entry to locations where sediment accumulates is mandatory for other Green Technology BMPs. As a fundamental element of distributed BMP design, a designed and engineered accessway located within a dedicated easement must be provided to such locations where maintenance would require heavy equipment. An area adequate for sediment disposal must also be included in the overall planning of sites, and access to such an area, whether onsite or offsite, must be incorporated into the plans and supporting legal documents.

A regular institutional program for maintenance is also imperative. An important objective of using Green Technology BMPs is to reduce the extensive measures needed in upkeep of centralized structural BMPs. However, maintenance procedures are still necessary, even though they most often involve activities that are already part of the landscape maintenance obligations of the owner.

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The preceding maintenance and access standards are applicable to all BMPs requiring heavy equipment access. Other maintenance procedures specific to each BMP are set forth in the following Sections.

2.3 FILTER STRIPS

While filter strips have relatively few design standards set forth in most literature, they are an extremely important distributed BMP since they are so easily incorporated into the design of projects. Therefore, it is essential that they be designed to handle their hydraulic and pollutant loads properly. This is particularly important where filter strips are incorporated as a pretreatment measure for infiltrating BMPs. In this event, the filter strip should be treated as an independent BMP so its effluent parameters can be adjusted to ensure that they are acceptable for any subsequent infiltrating BMP. If used as pretreatment for infiltrating BMPs, the effluent parameters for TSS should not exceed 15 ppm when modeled using DURMM.