W9126G20B0005_SSA Warehouse_Amend0001.pdf

AMENDMENT OF SOLICITATION/MODIFICATION OF CONTRACT

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

30-105-04 EXCEPTION TO SF 30

APPROVED BY OIRM 11-84

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

FAR (48 CFR) 53.243

The Solicitation for 3ABCT Supply Support Activity Warehouse; Fort Hood, Texas is amended as follows.

See SF30 Continuation Sheet(s)

NOTE: Bid Receipt date is 22 June 2020; at 10:00 am, CT, and Bid Opening is 22 June 2020; at 2:00 pm, as previously announced.

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.

1. CONTRACT ID CODE PAGE OF PAGES

J 1 2

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

16C. DATE SIGNED

BY

16B. UNITED STATES OF AMERICA 15C. DATE SIGNED 15B. 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 9A. AMENDMENT OF SOLICITATION NO.

W912620B0005

X 9B. DATED (SEE ITEM 11)

22-May-2020

10B. DATED (SEE ITEM 13)

11. THIS ITEM ONLY APPLIES TO AMENDMENTS OF SOLICITATIONS

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

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

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

or (c) By separate letter or telegram which includes a reference to the solicitation and amendment numbers. FAILURE OF YOUR ACKNOWLEDGMENT TO BE RECEIVED AT THE PLACE DESIGNATED FOR THE RECEIPT OF OFFERS PRIOR TO THE HOUR AND DATE SPECIFIED MAY RESULT IN REJECTION OF YOUR OFFER. If by virtue of this amendment you desire to change an offer already submitted, such change may be made by 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 -Jun-20

CODE

US ARMY ENGINEER DISTRICT, FORT WORTH

ATTN: CESWF-CT

819 TAYLOR ST, ROOM 2A19

P.O. BOX 17300

FORT WORTH TX 76102-0300

W9126G 7. ADMINISTERED BY (If other than item 6)

4. REQUISITION/PURCHASE REQ. NO.

CODE

See Item 6

FACILITY CODE CODE

EMAIL: TEL:

W9126G20B0005

SECTION SF 30 BLOCK 14 CONTINUATION PAGE

SUMMARY OF CHANGES

CHANGES TO SOLICITATION W9126G20B0005

CHANGES TO CLIN SCHEDULE

1. CLIN Schedule and CLIN Notes: Replace the CLIN Schedule and CLIN Notes, with the accompanying new CLIN Schedule, bearing the notation W9126G20B0005-0001.

CHANGES TO THE SPECIFICATIONS

2. Replacement Sections: Replace the following section with the accompanying new section of the same number and title bearing the notation W9126G20B0005-0001.

01 57 24.01 44 STORM WATER POLLUTION PREVENTION PLAN TEXAS

CHANGES TO THE DRAWINGS

3. Replacement Drawings.- Replace the drawings listed below with the attached new drawings(s) of the same number, each page bearing the notation W9126G20B0005-0001.

G-002

CS101

CG101

CP100

CP101

CP102

CP103

CP104

CU101

C-501

4. Deleted Drawings – The following drawings have been deleted from the solicitation.

CS101A

CG101A

CP100A

CP101A

CP102A

CP103A

CP104A

CU101A

C-501A

End of Summary of Changes

3ABCT SSA W9126G20B0005

Fort Hood, Texas

Section 00 11 00 - Standard Form (SF) 1442 and CLIN Schedule

BID SCHEDULE

Item Estimated Unit Estimated No. Description Quantity Unit Price Amount_ __

BASE OFFER: All work required by the Invitation for Bid (IFB ) documents for the construction of 3rd ABCT Supply Storage Activity (SSA) Warehouse.

0001 All work required to construct the 3rd ABCT Supply Storage Activity (SSA) Warehouse inside the 5 ft line. 1 JB *** $____________

0002 All work required to construct covered storage. 1 JB *** $____________

0003 All work required to construct outside the 5ft line of the facility exclusive of work identified separately. 1 JB *** $____________

0004 All work required to complete landscaping. 1 JB *** $____________

<AM#0001>

0005 All work required to construct a concrete 1 JB *** $______________ hardstand.

</AM#0001>

TOTAL BASE OFFER $____________

<AM#0001>

BID OPTIONS:

0005 All work required to construct 1 JB *** $____________ a concrete hardstand.

TOTAL OPTION $___________

TOTAL (BASE + OPTION) $___________

</AM#0001>

W9126G20B0005-0001

Section: 00 11 00 W9126G20B0005

3ABCT Supply Support Activity Warehouse Fort Hood, Texas

CONTRACT LINE ITEM SCHEDULE

NOTES:

NOTE NO. 1. To better facilitate the receipt and proposal process, all modifications to proposals are to be submitted on copies of the latest Contract Line Item (CLIN) schedules as published in the solicitation or the latest amendment thereto. In lieu of indicating additions/deductions to line items, all Offerors should state their revised prices for each item.

NOTE NO. 2. Offerors must insert a price on all numbered items of the CLIN Schedule. Failure to do so may result in the offer being unacceptable

<AM#0001> NOTE NO. 3. CONDITIONS GOVERNING EVALUATION OF OFFERS AND AWARD OF

CONTRACTS:

The Government may require the delivery of the numbered line items, identified in the schedule as option items, in the quantity and at the price stated in the schedule. Subject to the availability of funds, the Contracting Officer may exercise the option by written notice to the Contractor within the time indicated below from the Notice to Proceed.

</AM#0001>

NOTE NO. 4. All the extensions of the unit prices shown will be subject to verification by the Government. In case of variation between the unit price and the extension, the unit price will be considered to be the offer.

<AM#0001> NOTE NO. 5. At the option of the Government, the Government may require the Contractor to perform the work identified as Optional line item(s) at the price(s) stated in the CLIN Schedule. The Contracting Officer may exercise one or more of the Option(s) by written notice to the Contractor within 120 calendar days after the date of the acknowledgment of the Notice to Proceed by the Contractor. There is no separate completion period for these option(s) and the work included therein shall be completed within the contract duration as proposed above. Exercise of the Option(s) shall be evidenced on Standard Form 30, citing FAR 52.217-7, as the authority for exercising the Option. The Option shall be deemed exercised at the time the Government deposits the SF30 in the mail or, if earlier, at the time it is delivered to the Contractor.

NOTE NO. 6. 52.217-5 EVALUATION OF OPTIONS (JUL 1990)

(a) Except when it is determined in accordance with FAR 17.206(b) not to be in the Government's best interests, the Government will evaluate offers for award purposes by adding the total price for all options to the total price for the basic requirement. Evaluation of options will not obligate the Government to exercise the option(s).

(b) The Government may reject an offer as nonresponsive if it is materially unbalanced as to prices for the basic requirement and the option quantities. An offer is unbalanced when it is based on prices significantly less than cost for some work and prices which are significantly overstated for other work. </AM#0001>

NOTE NO. 7. Responders are advised that this requirement may be delayed, cancelled or revised at any time during the solicitation, selection, evaluation, negotiation and/or final award process based on decisions related to DOD changes in force structure and disposition of the Armed Forces.

Section: 00 11 00 W9126G20B0005

3ABCT Supply Support Activity Warehouse

Fort Hood, Texas

CONTRACT LINE ITEM SCHEDULE

NOTE NO. 8. Any proposal that is materially unbalanced as to prices for the Base Schedule may be rejected. An unbalanced proposal is one that is based on prices significantly less than the cost for some work and prices that are significantly overstated for other work and can also exist where only overpricing or underpricing exists.

NOTE NO. 9. ABBREVIATIONS

For the purpose of this solicitation, the units of measure are represented as follows:

a. JOB

END OF CLIN SCHEDULE

3ABCT SSA Warehouse FH19SSA

SECTION 01 57 24.01 44

STORM WATER POLLUTION PREVENTION PLAN (TEXAS)

PART 1 GENERAL

1.1 SUBMITTALS

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

submittals not having a "G" designation are for information only. When used, a designation following the "G" designation identifies the office that will review the submittal for the Government. When providing a resubmittal to address USACE review comments, the Contractor shall include annotated comment responses along with the resubmitted SWPPP (in its entirety). The following shall be submitted in accordance with Section

01 33 00 SUBMITTAL PROCEDURES:

SD-01 Preconstruction Submittals

Storm Water Pollution Prevention Plan (SWPPP or SWP3); G

The construction Contractor site specific SWPPP shall prevent erosion, sediment loss from the construction site, and erosion down gradient of the developed property. To the maximum extent possible, the SWPPP shall (a) limit the area of disturbance to minimize soil loss and prevent the discharge of water quality impaired water from the construction site and (b) incorporate staged stabilization measures as work progresses throughout the duration of the project. The Contractor shall use the current forms (e.g., NOI, NOT, NOC, etc.) required by the TXR150000 Construction General Permit issued by the Texas Commission on Environmental Quality (TCEQ). Additionally, the Contractor shall maintain compliance with the Construction General Permit at all times (even when the Construction General Permit is revised by the issuing agency).

The following summarizes some of the requirements that need to be implemented into the SWPPP as required by the TPDES TXR150000 Construction General Permit.

(1) The SWPPP shall comprise of three (3) major parts: (a) narrative, (b) drawings depicting structural and non-structural best management practices (BMPs), and (c) permit required documentation (attachments and worksheets) for record-keeping.

(2) The Contractor site specific SWPPP shall consider the phasing of project tasks with the timing of BMPs and construction activities. Additionally, the Contractor site specific SWPPP shall consider the diversion of storm water run-on onto the disturbed portions of the project site, including limiting the area of exposed soil, and retention of sediments from escaping the exposed portion of the site.

(3) The contract drawings depict recommended or suggested BMP types and locations. Any additional BMPs or modifications to the

SECTION 01 57 24.01 44 Page 1

BMPs throughout the project need to be depicted on the drawings included in the SWPPP as well as the text within the SWPPP.

(4) During construction (after USACE approval of construction operation SWPPP), SWPPP or BMP revision is required when site conditions change and when situations arise that may cause potential permit non-compliance. The SWPPP or BMP revision shall be initiated when requested by the Area Office Contracting Officer (AOCO)or as deemed necessary following an inspection conducted by the Contractor designated inspector.

(5) The NOI (if required to be prepared per the applicable state Construction Storm Water General Permit)shall be separately submitted to all required parties by the construction Contractor and the USACE (if deemed applicable) as co-operators of the construction site.

(6) The Contractor shall sign the Certification of SWPPP, the delegation letter of signatory authorization, the NOI (if required to be prepared per the applicable state Construction Storm Water General Permit), and the Notice of Termination (NOT) as required by the applicable Construction Storm Water permit.

(7) The SWPPP must contain a list of regulated materials and construction materials and products, their location, and methods of containment for each product.

(8) The SWPPP must contain a list of wastes, their location, and method of containment.

(9) The SWPPP shall implement procedures that prevent post construction erosion from occurring. Some examples include the use of Scour Stop or equal as velocity dissipators or the placement of composite fiber turf reinforcement mats at down gradient channels.

(10) The following shall be depicted in the SWPPP drawings.

(a) Location of fuel storage tank and/or fuel transfer points

(b) Location of the concrete wash-out pit

(c) Location of on-site or off-site approved construction support activities, including but not limited to Contractor laydown, storage, stockpile, borrow, spoil, parking areas and drainage features

(d) Location of batch plant (if applicable) and drainage features

(e) Location of the stabilized construction access

The following summarizes some of what is needed to be implemented into the SWPPP as required by the USACE.

(1) The SWPPP drawings shall be prepared on site grading plans.

The drawings shall include four phases or stages of Best Management Practices (BMP) structures layout: (a) initial BMP layout at site prior to clearing and grubbing, (b) interim BMP

SECTION 01 57 24.01 44 Page 2 layout during grading activities, (c) temporary stabilization method and locations, and (d) final stabilization method and locations of application. Notes on timing controls and activities shall be described on the SWPPP drawings.

(2) The SWPPP shall be prepared by a registered professional engineer, a Certified Professional in Erosion and Sediment Control (CPESC), or a licensed landscape architect who has experience with the applicable construction storm water permit as well as the use of sediment and erosion control best management practices (BMPs).

(3) The Contractor designated inspector and any person responsible for maintaining SWPPP compliance with the applicable storm water permit and permit required activities shall attend training on storm water erosion and sediment control compliance/inspectionsprovided by the EPA, state, or vendors (e.g., www.ieca.org, www.teex.org, www.stormwatercenter.org, etc.). The inspector shall provide training certificates from accredited vendors confirming course completion. Documented experience that deals with maintaining compliance with the applicable Construction Storm Water Permit may be substituted for the above mentioned training. Documented experience must be attached to the SWPPP.

(4) The person responsible for maintaining the SWPPP shall provide briefing on the approved Construction Operation SWPPP to all on-site workers.

(5) The SWPPP shall not be submitted to the USACE unless it has been verified to meet the requirements of the applicable state Construction Storm Water Permit. Prior to submitting the Notice of Intent (NOI) (if required per the applicable state Construction Storm Water permit)to all required parties, the construction operation SWPPP shall be approved by the USACE.

(6) The SWPPP must contain the Safety Data Sheets (SDS) for each material on-site or provide a reference in the SWPPP on where the sheets can be found at the project site.

(7) The SWPPP must contain a list and identify the location and method of containment for each type of waste that is to be recycled during the project.

(8) The following shall be depicted on the SWPPP drawings.

(a) A statement that verifies an emergency spill clean-up kit and spill containment device is at fuel transfer points at all times.

(b) A statement that verifies fuel tanks or fueling trucks have overfill protection devices.

(c) Construction details for all BMPs used on the construction site (e.g., BMPs for the fuel storage areas, concrete wash-out pit, borrow area, batch plant, stabilized construction access, etc.)

(9) Include a copy of this Section.

SECTION 01 57 24.01 44 Page 3

SD-11 Closeout Submittal

Notice of Termination ; G, PER-EE

If a NOI has been submitted, a copy of the original Notice of Termination (NOT) shall be submitted to the regulatory agency and to all required parties. Prior to submittal of the NOT, Contractor shall inspect the finished site with the Area Office Contracting Officer (AOCO)and obtain photographs to prove establishment of final soil stabilization and removal of BMP controls. A copy of NOT and photographs shall be provided to PER-EE (ATTN: Kathy Mitchell) through the AOCO. The construction Contractor shall retain all documents pertaining to Construction Storm Water Permit for at least three (3) years after NOT submittal.

1.2 SUMMARY

http://www.tceq.state.tx.us/nav/permits/sw_permits.html (PERMIT NO. TXR 150000 for large or small construction site)

The Contractor shall verify that the most current forms (e.g., NOI, NOC, NOT, etc.) are submitted with the SWPPP.

The Contractor shall not commence soil disturbance until approval of the site specific SWPPP is obtained from the USACE along with the USACE SWPPP certification, USACE Construction Site Notice, and USACE NOI (if applicable). Additionally, all required waiting periods as described in the TXR150000 Construction General Permit must also be met before soil disturbing activities may begin.

There is no separate payment for work required in this Section.

1.3 PROJECT IDENTIFICATION

PROJECT TITLE:Supply Support Activity Warehouse, 3rd Armored Brigade Combat Team

LOCATION:Fort Hood, Texas

<AM#0001>1.4 PROJECT DESCRIPTION

The scope of this project includes construction of new Supply Support Activity Warehouse, loading docks, covered paved storage areas storm sewer, access drives, sidewalks, lighting, security fence, communication system, and concrete hardstand in lieu of the heavy duty asphalt pavement . In addition, this project shall include demolition of a concrete storm flume, asphalt and concrete driveways and fencing. . The total project area of the new construction site includes is roughly 5.8 acres acres. . The total disturbed area including the new construction in this contract is roughly 5.8 acres.

1.6 BID OPTIONS AND PROJECT PHASING

There is 1 Bid Option for this project. It is: Constructing concrete pavement hardstand in lieu of the heavy duty asphalt pavement.

SECTION 01 57 24.01 44 Page 4

</AM#0001> 1.5 STANDARD INDUSTRIAL CLASSIFICATION (SIC)

1541 - General Contractors -Industrial Buildings and Warehouses

1542 - General Contractors - Non-Residential Building, other than Industrial Buildings and Warehouses (i.e., administrative buildings)

1623 - Water, Sewer, Pipeline, and Communications and Power Line Construction

1771 - Concrete Work (includes asphalt; i.e., access drives and parking lots, culvert construction) 1794 - Excavation Work (include trenching and earth moving

1.6 LOCATION

The new facility project site is within the city boundary of Fort Hood Military Installation. The project site is bounded by Ivy Division Road on the north, 63rd Street on the east, an existing site on the south and and 65th Street on the west.

1.7 RECEIVING WATERS

The storm runoff from the new facility site flows from the south east to the north west by way of sheet flow, swales and new storm drain inlets and pipes, then flows under the driveway at 65th Street and Ivy Division Road that flows north west along Ivy Division and ultimately to Lake Henry.

PART 2 SITE DESCRIPTION

2.1 EXISTING CONDITIONS

The site generally slopes from south east to north west with an average slope of 2.5 percent. The east side of the site is higher in elevation than the west with an elevation difference of anywhere from 3 to 10 feet. There are currently existing underground storm drainage facilities near the new facility site. The existing facilities include a culvert that discharges on the west side of 65th street, culverts under neath both access drives to the site from Ivy Division Road, a concrete flume running along the north side of the site on Ivy Division Road, and two culverts that discharge from the north west corner of the site underneath 63rd Street to the west.

Estimated existing runoff coefficients vary from 0.3 to 0.9. Twenty Five year storm frequency and 10 minutes duration with 8.36 inches per hour intensity was used for the design of the storm drainage system.

2.2 FINAL CONDITIONS

Grades at the new facility site will be more consistent with slopes varying from 0.5 percent in swales to 5 percent in paved areas. Completed facility site drainage will ultimately flow into a new underground drainage system via sheet flow into swales and drainage structures. The grades surrounding the building vary from 2 to 3 percent. The new project site will have a new building, hardstand, hardstand storage areas, service drives, landscaping, and turfing. Estimated future runoff coefficients vary from

0.3 to 0.9.

2.3 CONSTRUCTION ACTIVITIES

The Contractor shall establish storm water BMP control structures prior to

SECTION 01 57 24.01 44 Page 5 conducting site disturbing activities. The Contractor shall maintain temporary and permanent site stabilization at each portion of site.

The Contractor shall maintain a record of the START date of major construction site activities (i.e., clearing and grubbing, grading, trenching and excavation, dirt moving, etc.), the STOP date when construction activities cease on a portion of the site, and the START date of stabilization measures (such as sod, seeding with native seed, vegetative buffer strips, erosion control compost, turf reinforcement mat, etc.). See SECTION 01 57 25.00 44 SWPP PLAN INSPECTION AND MAINTENANCE REPORT FORM for an example of a grading and stabilization log sheet.

2.4 SOILS DATA

The SWPPP narrative shall provide soils information of the proposed construction site. Possible sources of information are project soil reports, USDA soil survey data, and other published sources. Information can be found at http://websoilsurvey.nrcs.usda.gov/.

2.5 STORM WATER POLLUTION PREVENTION DRAWINGS

Each SWPPP drawing shall have a specific sheet number and title.

The following describes the items that need to be identified in the drawings of the SWPPP as required by the TPDES TXR150000 Construction General Permit.

(a) Existing site features and BMPs -- name of receiving waters (e.g., lake, stream, creek, river, unnamed tributary of named receiving stream, etc.), project site storm water discharge locations, existing storm grates, outfall protection devices, and BMPs.

(b) Interim grading site drainage features and BMPs -- slopes with rough grading, limit of soil disturbance area, outline of areas not to be disturbed (e.g., vegetative buffer zones, cultural resources, wetlands, and areas of environmental concern), new storm grates, new drainage outfalls, and BMPs.

(c) Areas to receive temporary stabilization. Methods of stabilization shall be identified along with the applicable specification for the stabilization (e.g., native seed mix at a certain application rate in lbs/sq-ft, etc.).

(d) Areas to receive final stabilization. Methods of stabilization shall be identified along with the applicable specification for the stabilization (e.g., native seed mix at a certain application rate in lbs/sq-ft).

(e) On-site and off-site material borrow areas, clean dirt disposal areas, and BMPs. Stabilized access roads, construction support activities and laydown areas (equipment, staging, parking, and storage areas) along with the BMPs.

(f) Concrete or asphalt batch plant and BMP (if applicable).

The following describes the items that need to be identified in the drawings of the SWPPP as required by the USACE.

(a) BMP construction details for all erosion control and stabilization and sediment control BMPs(e.g., BMPs for the fuel storage areas, concrete

SECTION 01 57 24.01 44 Page 6 wash-out pit, borrow area, batch plant, stabilized construction access, seeding type, silt fence, etc.)

(b) EROSION AND SEDIMENT CONTROL PLAN I (demolition site)

(c) EROSION AND SEDIMENT CONTROL PLAN II(existing site conditions depicting run-on flow diversion BMPs and run-off BMPs)

(d) EROSION AND SEDIMENT CONTROL PLAN III(interim site grading conditions depicting run-off BMP, swales BMP, storm grates BMP, and temporary stabilization areas & method specification)

(e) EROSION AND SEDIMENT CONTROL PLAN IV(complete site grading conditions depicting run-off BMPs, swales BMPs, storm grates BMPs, and final stabilization areas and method specification)

(f) Notes on timing of contols of activities

PART 3 BEST MANAGEMENT PRACTICES (BMPs)-EROSION AND SEDIMENT CONTROLS

3.1 TEMPORARY STABILIZATION

Stabilization measures shall be in conformance with Part III.F.2.b.iii of the TXR150000 Construction General Permit.

The Contractor shall provide all necessary labor, services, equipment, materials (e.g., fertilizer) to obtain, transport, apply, and maintain the temporary stabilized area until final stabilization is performed.

Some examples of acceptable methods for temporary stabilization include water sprinkling with environmental sustainable soil binders (e.g., products produced by Soilworks, LLC, DirtGlue Enterprises, SoilLok, or similar) or anchored straw mulching (typically applied at 2 tons per acre).

The construction SWPPP may specify other forms of temporary stabilization methods that are industry accepted and are applicable for the project site conditions.

3.2 PERMANENT STABILIZATION

Stabilization measures shall be in conformance with Part III.F.2.b.iii and iv of the TXR150000 Construction General Permit.

The Contractor designated inspector shall inspect the site with the USACE AOCO to ensure final stabilization is established. Final stabilization is defined as described in Part I.B of the TXR150000 Construction General Permit. If final stabilization is unsatisfactory, additional measures shall be required by the USACE AOCO. If applicable, additional seeding shall be performed after temporary removal of the erosion control blankets and subsequent replacement of blankets after such activities are completed. If applicable, the Contractor's SWPPP shall specify the native seed mix species and application rate (lbs/sq-ft). Some examples of acceptable methods for permanent stabilization includes sodding, pavement, and rock blankets.

3.3 SEDIMENT BASIN

The TPDES Storm Water Discharge General Permit requires a temporary sediment basin for sites where 10 acres or more are disturbed at one time.

SECTION 01 57 24.01 44 Page 7

If the disturbed site drains to a common location, a sediment pond or trap shall be constructed as initial grading activity. The pond shall be prepared by the site designer and it shall include layout and construction details. . The following elements are required if a sediment pond is constructed as an initial site activity: The slopes of sediment pond shall be stabilized with an effective form of temporary/permanent stabilization (as applicable). The storm water shall be allowed to settle after each rainfall event before dewatering in accordance with the applicable Construction General Permit.

3.4 STRUCTURAL CONTROLS

See SECTION 01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL.

3.5 NON-STRUCTURAL CONTROLS

The Contractor (and the subcontractors) shall be responsible for eliminating pollutants in storm runoff from the project site. The Contractor (and subcontractors) shall be responsible for utilizing non-structural BMPs to minimize storm water pollution. Some examples of non-structural BMP include:

- Construction Practices

- Material Management

- Waste Management

- Vehicle and Equipment Management

- Employee and Subcontractor Training

- Storm Water Pollution Prevention Plan Maintenance

3.5.1 Construction Practices

Dewatering Operations: The Contractor (and subcontractor)shall prevent discharge of sediment by methods of sediment control, containment, and disposal. In project areas suspected of potential toxic or petroleum products contamination, the water shall be tested to determine method of disposal.

Paving Operations: The Contractor (and subcontractor) shall avoid discharge of pollutants to storm drains by avoiding asphalt and concrete paving in wet weather or anticipation of such event, storing material in covered containers, covering and berming storage areas, establish control structures, cover on-site storm grates, and worker and subcontractor training.

Structure Construction and Painting: The Contractor (and subcontractor) shall prevent pollutants in storm runoff by covering, or berming material storage areas, keeping job site clean and orderly, using safer alternate products, stabilizing adjacent disturbed areas, storing material in secondary containment, protecting on-site storm drains, establish control structures, and perform worker amd subcontractor training.

Solid Waste Materials: Trash and uncontaminated construction debris shall be placed in appropriate covered waste containers. Waste containers shall be emptied regularly and shall not be allowed to overflow. The disposal area of excavated material from project construction shall not be utilized for waste disposal. Routine janitorial service shall be provided for all construction buildings and surrounding grounds. No construction waste materials, including concrete, shall be buried or otherwise disposed of

SECTION 01 57 24.01 44 Page 8 on-site. The Contractor shall brief all on site personnel on good house-keeping and waste minimization.

Stockpiles: Material shall have a storm water perimeter control devices established at a minimum distance of 10 feet from the toe of the stockpile. Materials excavated from utility trenching shall be protected from up gradient storm run-on.

3.5.2 Material Management

Material Delivery and Storage Practice: The Contractor (and subcontractor) shall prevent or reduce discharge of pollutants to storm water by minimizing the on-site storage of hazardous and toxic (HT) materials, storing HT in clearly labeled, corrosion-resistant containers with secondary containment at designated areas approved by the COR, conducting frequent inspection, keeping current inventory of construction materials on site and training of workers and subcontractor.

Material Use and Inventory: Common on-site materials are pesticides and herbicides, fertilizers, detergents, concrete material, petroleum-based products, fertilizers, tar, asphalt, steel reinforcing bars, other hazardous chemicals such as acid, lime, solvents, curing compounds, sealants, paints, glues, fertilizers, etc. The Contractor (and subcontractor) shall use less hazardous, alternate or environmental friendly material, if available. The Contractor shall have (1) a list of construction materials used on site, (2) a list of materials and associated potential pollutants, and (3) method of storage and containment in the Contractor operation specific SWPPP.

Spill Prevention and Control: The Contractor (and subcontractor) shall store HT material in covered containers and inside a fenced area, have the temporary fuel storage tank bermed or contained to meet applicable Fire Code, place readily accessible spill clean-up materials, have protocol for immediate work stoppage, notification, clean-up, labeling, storage and packaging, transportation, disposal, record-keeping, closure activities, and provide training to workers and subcontractor for response to spills.

3.5.3 Waste Management

Solid Waste: Solid waste materials (e.g., grout, mortar or uncontaminated debris) shall be placed in covered containers. Trees and shrubs from site clearing shall be shredded and used as mulching material after site stabilization. Packaging materials such as wood, plastic, and paper shall be recycled to the maximum extent possible and not disposed of in a landfill. It is a requirement to perform recycling (see SECTION 01 74 19 ). The Contractor shall designate waste containers for segregating waste (municipal, metal, aluminum, plastic, wood pallet, packaging, glass, etc.)

Dry paint cans shall be recycled. The Contractor shall designate waste disposal area, have a routine janitorial service for all structures and surrounding grounds, and have a routine schedule to service waste containers. The disposal area of excavated material from project construction shall not be utilized for solid or refuse waste disposal.

Personnel on the job site shall be briefed on minimizing disposal to landfill by waste segregation and recycling.

Hazardous and Toxic Waste: All excess on-site material such as paints, solvents, petroleum products (e.g., fuel, oil, and grease, etc.), herbicides, pesticides, acids for cleaning masonry, concrete curing compounds, sealants, paint strippers, wastes from oil-based paint, and

SECTION 01 57 24.01 44 Page 9 glues can become HT waste. Containers of excess material shall be labeled and managed according to the labels and as recommended by the product manufacturers. If there are no instruction provided, the Contractor shall turn in contained waste to the installation DRMO, the local household hazardous waste drop-off, or recycling program.

Demolition:

Contaminated Soil: If suspicious of soil contamination during soil moving activities, the Contractor (and subcontractor) shall stop work, notify COR, and establish containment to prevent soil transport or runoff from that location. For removal of contaminated soil, a WORK PLAN shall be prepared for COR approval prior to handling and management of the material. The WORK PLAN shall at least include the following: containment, sampling & analyses, notification to regulatory agencies, transportation, worker safety, training & environmental monitoring, disposal, and documentation and record-keeping.

Construction and Concrete Waste: Construction waste or surplus materials, demolition building debris, scrap metal, rubber, plastic, glass, concrete, and masonry products shall be segregated and recycled to minimize landfill disposal. No construction waste shall be buried or disposed of on-site.

Concrete waste shall be controlled and minimized by appropriate storage methods for dry and wet materials, and control the amount of concrete and cement mixed on site. Sweepings from exposed aggregate concrete shall be collected and returned to aggregate stockpile and they shall not be washed into streets or storm drains. Concrete wastewater from wash pit is not permitted to discharge as storm runoff. See SECTION 01 57 23 TEMPORARY STORM WATER POLLUTION CONTROL for additional concrete wash-out requirements. After project completion, the Contractor shall contain wastewater, clean the basin, test and dispose of wastewater and sediment in accordance with applicable regulations and to the satisfaction of the USACE AOCO. The Contractor is responsible for all fees, levies, and disposal cost and shall provide a treatment facility signed delivery ticket.

Sanitary/Septic Waste: On-site sanitary facilities shall be established at a convenient location. Facility location, design, maintenance, and waste collection practices shall be approved by COR and are in accordance with local regulations. The Contractor (and subcontractor) shall have a routine schedule for waste pump out by a licensed hauler. Septic waste treatment system shall have a pre-construction permit from the local health regulating agency and have contract service with a licensed company.

Temporary sanitary facilities discharging to sanitary sewer system shall be approved by the operator of the system and properly connected to avoid illicit discharges. Wastewater from water-based paint shall not be discharged as sanitary waste.

Building Exterior Cleaning or High-pressure Wash: Storm drains shall be protected by approved storm water control device. Wash onto dirt area, spade in, settle solids in pit, collect (mop up) and discharge to sanitary sewer (with approval from sewer operator). If the exterior paint contains lead exceeding the levels stated in the Consumer Safety Standard, mercury or mildewcide, the wash water shall be collected and disposed of as regulated material that will require sampling data for disposal to permitted facility.

Street/Pavement Cleaning: Water used for this activity shall be minimized and sediment basin shall be used to contain wastewater. At completion of construction, the silt shall be removed and disposed of in accordance with

SECTION 01 57 24.01 44 Page 10 applicable regulations, and water from the basin shall be pumped to a sanitary sewer with written approval from the COR.

Care of Storm Water from Excavated Areas: Storm water trapped in excavated areas shall be lifted or pumped into a temporary bermed sediment basin or equal measure(s) for sediments removal. The filtered water shall runoff as sheet flow from the sediment removal area. The sediment removal area shall have the maximum separation distance possible from the site drainage outfall.

3.5.4 Dust Control

See SECTION 01 56 00.00 44 DUST CONTROL.

3.5.5 Vehicle and Equipment Management

Off-site Vehicle Tracking: The Contractor is required to keep vehicles from tracking soils from the project, borrow, and disposal sites.

Temporary parking area(s) to be used 30 calendar days or more for the Contractor's equipment or personal vehicles shall be paved with temporary asphalt. The temporary parking areas shall be removed by the Contractor upon project completion and restored to the satisfaction of the COR.

Vehicle and Equipment Cleaning: Washing shall be performed off site at a commercial washing facility that has an oil/water separator as pre-treatment before connection to municipal sewer system. No vehicle washing is allowed on site, unless washing involves the rinsing of a concrete truck and wastewater is trapped in a washout pit with secondary containment.

Vehicle and Equipment Fueling: Fueling shall be off-site unless a written approval is obtained. If fueling on-site is approved, it shall be at least 150 feet from drainage courses. The Contractor shall provide a construction detail to depict best management practices for fuel storage and fuel transfer/dispensing areas. Fueling operations shall avoid topping of fuel tank, and avoid mobile fueling of mobile construction equipment. Fueling locations shall use impervious secondary containment (i.e., a liquid-tight berm and an impermeable liner). The containment capacity of the bermed area shall provide at least 110 percent (%) of the stored fluid.

It is necessary to have a clean-up kit and containment bloom (or absorbent material) available at all times for immediate clean-up during fueling. No petroleum fuel, oil or lubricants or products tanks are allowed on-site unless is pre-approved in writing. Emergency cut-off valve and or overfill protection device is required on fuel transfer equipment. The temporary fuel containers placed on-site shall meet the industrial standard, labeled and stored in accordance with applicable Federal, state, and local Fire codes.

In case of spill of hazardous, toxic, and radiological waste (HTRW), the Contractor shall stop work, contain spill, notify the AOCO and Safety Office, and execute spill control. Spill control, response, notification, clean-up, restoration, reporting, record-keeping, etc. shall be in accordance with 40 CFR 110 and 40 CFR 112 , other applicable Federal, state, and local regulations, and to the satisfaction of the AOCO.

Vehicle and Equipment Maintenance: Outdoor vehicle or equipment maintenance is a significant potential source of storm water pollution.

SECTION 01 57 24.01 44 Page 11

Activities often include engine repair, changing fluids, etc. Such activities shall be prohibited at the job site. The construction Contractor shall verify proofs on routine maintenance of construction equipment and vehicles before bringing them to the job site.

Vehicle and Equipment Parking: Vehicle or equipment shall be regularly inspected for leaks and schedule routine maintenance to reduce the potential for leaks. If leaks are observed at the job site, such vehicle or equipment shall be repaired immediately or removed from the site.

3.5.6 Employee and Subcontractor Training

The Contractor is responsible for providing training for all workers (including the subcontractor) on the job site. The objectives in training are to provide a clear concept of activities or problems that generate pollutants to storm water, identify solutions (BMPs), promote ownership of the problems and solutions, and integrate feedback into training and BMP implementation. A certificate to verify completion of training shall be signed by all trained personnel and retained in the SWPPP.

3.5.7 Storm Water Pollution Prevention Plan Maintenance

The USACE approved SWPPP shall be readily available to inspector either from the USACE or regulatory agency. The USACE approved BMPs and SWPPP shall be revised at no cost by the construction Contractor when there are changes in site conditions, sequence of construction and operation, when sediments escape from the job site, or as dictated by the results of inspections. The BMPs and SWPPP shall be updated by the construction Contractor upon request of the USACE COR.

PART 4 STORM WATER MANAGEMENT AND PERMANENT CONTROLS

4.1 RUNOFF COMPUTATIONS

The storm drainage design is based on a 250-year storm frequency and 10-minutes duration with 8.63 inch per hour rainfall intensity.

4.2 SURFACE DISCHARGE QUALITY

The wastewater from concrete washing activity is prohibited from discharging as surface runoff. See Part 3.5.5 of SECTION 01 57 20.00 10

ENVIRONMENTAL PROTECTION.

4.3 PERMANENT EROSION CONTROL STRUCTURES AND STORM WATER TREATMENT UNIT

Permanent drainage structures, including concrete curbs and gutters, storm drainage system, concrete pavement, asphalt pavement, drainage swale, drainage ditch, turfing, vegetative strip, will provide erosion control at the project site.

4.4 OUTLET PROTECTION OR OUTFALL VELOCITY DISSIPATION DEVICES

The outlet protection or outfall dissipation device shall provide non-erosive flow conditions at the point of surface water discharge to the

SECTION 01 57 24.01 44 Page 12 ditch or swale and downstream of the outfall or channel. The proposed storm drains shall initially be discharged into the flow channel . The outfall impact locations are protected by erosion control matting. The drainage swales are protected by e.g., seeding on prepared soil surface and overlay with erosion control matting

PART 5 TIMING OF CONTROLS AND ACTIVITIES

The general Contractor shall discuss timing (sequence) of controls and construction activities to minimize soil loss from exposed areas in the construction operation SWPPP.

The following list provides a general example of the Timing of Controls and Activities.

- Minimize area of disturbance,

- Preserve existing vegetation at the downgradient portion of the site, do not disturb ground cover until it is necessary to proceed with field work,

- Install stabilized construction access,

- Install BMPs at contractor staging, stockpiles, storage, parking, borrow areas, and stockpiles (on-site and off-site locations), concrete washout pit, fuel storage/transfer area, etc. ,

- Install BMP at existing storm grates (e.g., curb inlets surface inlets, manholes, catch basins, etc.),

- Install flow diversion dike and stabilize. Construct sediment trap at the downgradient end of the dike,

- Track weather and protect exposed areas with erosion control measures before anticipated storms arrive.

- Construct outfall, install BMPs at initial impact location, and stabilize flow channel prior to clearing upper watershed,

- Stage construction to the maximum extent possible by disturbing, protecting, and then stabilizing one side of river bank before disturbing the opposite side,

- Stabilize flow channel,

- Clear site for sediment pond (if applicable)and utilize sediment pond skimmer to control overflow,

- Stabilize pond slopes,

- Develop run-on BMP devices and protect loose soil areas,

- Start grading up gradient of site and stablize disturbed areas,

- Avoid disturbing down slope areas of site until up-gradient disturbed areas are stabilized,

- Delay construction of infiltration measures until the end of project when drainage areas are stabilized, SECTION 01 57 24.01 44 Page 13

- Install BMP protections at new storm grates (e.g., curb inlets surface inlets, manholes, catch basins, etc.),

- Protect excavated materials by installing BMP perimeter controls to protect materials from run-on and run-off

- Stabilize stockpiles and install BMPs at least 10 feet from the toe of the material,

- Backfill utility trenches in a timely manner to minimize erosion and soil loss,

- Monitor weather reports to schedule paving (asphalt or concrete), concrete saw cutting, foundation work, dust control, seeding or any activities that will impact run-off,

- Inspect and maintain BMP control structures,

- Evaluate BMP and revise BMP when site conditions or activities change. Assess non-storm water discharges. Maintain Construction General Permit and USACE required field records and training logs,

- Monitor discharge from concrete batch plant(if applicable),

- Maintain stabilized areas until final project acceptance (i.e., watering, fertilize, mow, additional seeding, etc.),

- Verify final stabilization of disturbed areas with COR representative. See definition in PART 2.3,

- Remove sediment and BMP control structures once disturbed areas are permanently stabilized and accepted by COR. Obtain photographs of site to prove establishment of stabilization and removal of all BMP controls,

- File the Contractor NOT. Provide a copy of NOT through COR to PER-EE.

PART 6 COMPLIANCE WITH FEDERAL, STATE AND LOCAL REGULATIONS

In compliance with the National Environmental Policy Act of 1969, as amended, the Record of Environmental Consideration (REC) dated April 10, 2018 has been prepared for this proposed action. The REC indicates the proposed action qualifies for Categorical Exclusions, Appendix B, 32 CFR Part 651, dated 29 March 2002. The proposed action has no impact on endangered and threatened species and their critical habitats. The proposed project site does not encroach upon floodplains and wetlands. The proposed site has no environmental compliance issues. In compliance with Clean Water Act, Section 402, the Contractor and the subcontractor shall conform with all applicable TPDES General Permit stipulations to discharge storm water during construction. In addition, the Contractor (including the subcontractor) shall comply with the Government approved Contractor's operation specific Storm Water Pollution Prevention Plan, BMP, and contract requirements as stated in this section. The Contractor (and the subcontractor shall comply with all applicable Federal, state, and local hazardous, toxic, radiological (HTR) waste, municipal waste, sanitary and septic waste disposal regulations.

SECTION 01 57 24.01 44 Page 14

PART 7 MAINTENANCE AND INSPECTION PROCEDURES AND QUALIFICATION OF

DESIGNATED INSPECTOR

The Contractor shall designate an inspector on site to ensure Storm Water Permit compliance and perform SWPPP quality control. All BMPs and control structures shall be inspected according to the requirements of Part III.F.7 of the TXR150000 Construction General Permit. The inspectorshall inspect adjacent areas daily for direct clean-up of waste materials, debris, and fugitive sediment that are blown or washed off-site.

All protective measures used and identified in the SWPPP must have maintenance performed in conformance with Part III.F.6 of the TXR150000 Construction General Permit.

The designated SWPPP inspector is responsible for maintaining the SWPPP throughout the term of permit coverage in accordance with the TXR150000 Construction General Permit (i.e., Part III.7(d) and (e)). All deficiencies shall be corrected and recorded. An example of a form to record this information can be found in SECTION 01 57 25.00 44 SWPP PLAN INSPECTION AND MAINTENANCE REPORT FORM. A copy of each inspection report form shall also be provided to the AOCO.

PART 8 PROHIBITION ON NON-STORM WATER DISCHARGES

In accordance with the Part II.A.3 of the TXR150000 Construction General Permit, non-storm water discharges are prohibited during construction of the project, except for the non-storm water discharges listed below. The following list of non-storm water discharges from active construction sites are allowed and is developed based on the above guideline.

(a) discharges from fire fighting activities

(b) uncontaminated fire hydrant flushings

(c) water from the routine external washing of vehicles, the external portion of buildings or structures, and pavement, where detergents and soaps are not used and where spills or leaks of toxic or hazardous materials have not occurred (unless spilled materials have been removed; and if local, state, or federal regulations are applicable, the materials are removed according to those regulations), and where the purpose is to remove mud, dirt, or dust

(d) uncontaminated water used for dust control

(e) potable water sources including waterline flushings (excluding discharges of hyperchlorinated water, unless the water is first dechlorinated and discharge are not expected to adversely affect aquatic life)

(f) uncontaminated air conditioning condensate

(g) uncontaminated ground water or spring water, including foundation or footing drains where flows are not contaminated with industrial materials such as solvents

(h) lawn…