Attachment 2 Final SOW.doc

Attachment 2, 12639522R0030

Statement of Work Rehabilitation of Sewage Lagoon #2 April 2022

1.0 Title: Sewage Lagoon #2 Rehabilitation

2.0 Location: U.S. Department of Agriculture (USDA), Animal and Plant Health Inspection Service (APHIS), Plant Protection Quarantine (PPQ) Moore Air Base, 22675 N. Moorefield Road, Edinburg Texas 78541.

3.0 Background: Moore Air Base (MAB) has its own self-contained Wastewater Treatment Plant (WWTP) with two side-by-side sewage lagoons/evaporation ponds. These ponds hold the treated effluent water. The existing ponds have been in operation since 2010. Pond #3 was relined in 2020.

The ponds are artificial with very large surface areas designed to efficiently evaporate water by exposure to sunlight and ambient temperatures. The existing High-Density Polyethylene (HDPE) liner and underlay liner have degraded and exceeded their useful life to the point that the liners are no longer functional. The old WWTP did not remove solids from the effluent and suspended them though an agitation and aeration process. This process has resulted in the sewage lagoons accumulating about 24 inches of sludge buildup on the liner. In an earlier attempt to remove the sludge, personnel determined that the liner was installed on a subgrade that had not been properly graded and leveled. Consequently, the Government must rehabilitate Pond #2.

4.0 Description: The purpose of this Statement of Work (SOW) is to procure contractor services to rehabilitate evaporation pond # 2 and provide a fully functioning sewage treatment pond system. Evaporation Pond #2 is approximately 415 ft x 250 ft x 8 ft. Reference attached plan and profile drawings “Evaporating Pond #2 Rehabilitation” dated March 30, 2022, for exact pond measurements and construction requirements. Note: “Provide” as mentioned in this SOW means to provide and install.

4.1 Contractor shall furnish all plant, labor, materials, services, and equipment, etc. to effectuate completion of this project. Material and equipment used shall be rated for the environment in which installed.

a. Contractor is responsible for the test equipment and welding machine(s) needed to install the liners and ensure the new piping system and evaporative pond are functioning correctly without any leaks.

b. Inspect/survey project site to validate project area and set any required hubs.

4.2 Meet with USDA employees [e.g., Facility Manager (FM), and Contracting Officer, etc.] to ascertain a clear understanding of the project guidelines and scope; location of underground obstructions, piping, or equipment; boundaries; and to address any site security concerns.

a. Prior to commencing construction, provide for Government approval a schedule, phased work plan, and a plan of action inclusive of drawings, sketches, etc. on how the project will be executed.

b. Phase Plan: The phase plan should include major milestones i.e., demolition, grading, installing underlay, testing, etc. Each phase should be inspected and accepted via signature or email documentation by the FM or his representative prior to preceding to the next phase of construction.

4.3 Tasks include but are not limited to the following:

a. Pump lagoon water, solids, and effluent from Pond #2. Dewater and remove/dispose of sludge from the pond.

b. Dispose/land farm the sludge removed from the existing pond. Sludge shall be placed adjacent to the existing sewage lagoons (to the west), properly graded, and stabilized (seeded). Backfill lawn, seed and fertilize. Coordinate with FM for exact disposal location.

c. Remove or minimize trees, tall grass, large rocks and other vegetation or debris on the banks or surrounding area that could stop the sun and wind action needed for the lagoon.

d. Excavate lagoon and grade level after liner and underlay removal. Reshape and compact the pond subgrade and bank slopes with specified materials i.e., concrete, gravel, rock as required by the Texas Commission on Environmental Quality (TCEQ). Ensure embankments are constructed in accordance with 217.203(f) for the Design Criteria for Natural Treatment Facilities. Embankment layout should stop or minimize the wave action that could erode the banks.

e. Replace existing geotextile underlay liner and 60 mil HDPE top liner. Install new underlay liner and 60 mil HDPE top liner. Installed liners shall be smooth, undamaged, and with continuous seam welds.

f. Grade and level traffic areas between the ponds to allow vehicle access for maintenance. A minimum of 10 feet width is required.

g. Excavate, grade, and restore existing lawn where disturbed.

h. Coordinate with TCEQ for permitting requirements.

i. Coordinate with the FM to flood the lagoon immediately after project completion and Government acceptance.

4.4 The HDPE membrane installer shall have a minimum of five years of experience in the installation of the specified membrane or similar. Installation shall be performed under the direction of a field installation supervisor who shall be responsible throughout the geomembrane installation, for geomembrane panel layout, seaming, patching, testing, repairs, and all other activities of the geomembrane installer. Seaming shall be performed under the direction of a Master Seamer (who may also be the field installation supervisor or crew foreman). The field installation supervisor or master seamer shall be present whenever seaming is performed. See the proposal evaluation factors for award on pages 23 and 24 of the solicitation for further requirements.

4.5 Provide a Safety Plan and Quality Assurance/Quality Control (QA/QC) Plan for Government review and acceptance. QA/QC plan should address how project phasing is implemented to minimize impact to facility operations; and preventative measures to mitigate fugitive dust and noise pollution during deconstruction and construction.

4.6 Provide a Waste Disposal Plan. Include contact information for landfill and/or recycle center.

4.7 Facility will remain fully operational during the construction period. Coordinate construction activities with the Government to minimize conflicts, downtime, and interference with the daily facility operations. Work hours are Monday through Friday 7:00 am until 3:30 pm. Modifications to the designated work hours must be approved by the FM.

4.8 Coordinate any shutdown with the FM. Provide a minimum of five-days’ notice before any utility or program system is shutdown or de-energized. Prior to starting restoration repairs, tag out equipment affected by a specific task or work area.

4.9 Warranty: The HDPE, 60 mil liner shall have a minimum 10-year, ultra-violet weathering warranty. Underlay liner shall have a 10-year warranty. Contractor workmanship shall have a minimum three-year warranty.

4.10 Liner and Underlay Installation:

a.

Contractor shall not cover underlay liner until inspected and accepted by the FM/COR.

b. Install all liners (geotextile underlay and HDPE) per the manufacturer’s recommendations and industry standards. Liners shall be without tears, punctures or patches covering damages. HDPE liners shall be GSE Environmental, Industrial Environmental Concepts, Inc. or equal. Geotextile underlay shall be Western Environmental Liner or equal.

c. Installation of HDPE and underlay liners shall be continuous, overlap, run in the same direction, and have a minimum of splice welds.

d. Install liners along embankment as a continuous unit.

e. Provide cover strips over seams to reinforce liners against friction and protect against leaks.

f.

Prepare anchor trenches and other site-specific structures like piping and drains as required by the FM.

4.11 Testing: Contractor shall pressure test i.e., air, water, etc., commission, and certify the new HDPE of any leaks. Note: Contractor shall be responsible for all tests, any fees associated with third party testing, and inspections performed by the state of Texas and any other entity.

a. Perform QA testing for all seam welds per ASTM D 6392. Provide third party QA testing for test weld samples.

b. Contractor shall certify in writing that the evaporative pond can support the load of the new coverings, as well as the weight of the coverings and aluminum extrusions used to fasten down the rigid coverings.

4.12 During the course of construction, if the Contractor encounters an unusual situation, Contractor shall document the discovery via pictures and immediately notify the FM before proceeding.

a.

Contractor shall keep a photo journal of all work performed during the construction period. Unless otherwise requested by the Government, provide at a minimum, weekly reports inclusive of photographs with captions that document work progress.

b.

Photo journal and logs shall be surrendered to the Government during project closeout.

c. Maintain log of the following:

1. Speed and temperature during installation.

2. Trial weld testing.

3. Destructive or non-destructive testing conducted, location, and results.

4. Labeled panels and location for the as-built record.

5. Leak field air, vacuum and/or water tests after installation and any repairs are complete. Identify and document locations of all leaks for future reference.

4.13 Use compacted fill material to trench the liner rather than using the rock as shown in the diagram attached…roughly two feet in all directions. Reference Attachment 4, “Typical Sewer Lagoon Edge Anchor Trench Detail.” Adjust trench layout as required to ensure liner is properly anchored. As reasonably as possible, provide fill material from one source. Detail shown is an example only. Contractor shall ensure the edge of the liner is protected and will not allow wind and uplift under the liner attached. Contractor shall submit sketches/details on their proposed solution for Government review and acceptance.

4.14 Additions, alterations, renovations, or repairs to any sewer/piping system shall conform to that required for a new piping system without requiring the existing plumbing system to comply with all the requirements of the code. Additions, alterations, or repairs shall not cause an existing system to become unsafe, unsanitary, or overloaded. Work is limited to tasks that will ensure the proper functionality of the evaporative pond.

4.15 Minor additions, alterations, renovations, and repairs to existing sewer systems shall be permitted in the same manner and arrangement as in the existing system, provided that such repairs or replacement are not hazardous and are code compliant.

4.16 New sewer piping and parts of the existing systems affected by new work or alterations under this task shall be inspected by the FM to ensure compliance. No pipes or drainage system shall be covered, concealed, or put into use until it has been tested and inspected.

4.17 All work shall be performed in accordance with the requirements of Chapter 26 of the Texas Water Code and 30 Texas Administrative Code Chapter 205 and 217. Contractor shall certify that all material, equipment, and appurtenances were installed per the manufacturer’s recommendations and industry standards, are functioning as designed, and are code compliant.

4.18 Contractor shall be responsible for coordinating with TCEQ and obtaining an updated operating permit. Notify TCEQ in writing two weeks prior to replacing the evaporation pond liner.

4.19 Contractor is responsible for locating existing utilities at the construction site prior to digging. Contractor shall contact “Texas811” or similar entity to mark and identify buried utilities in the project area. Contractor will assume all responsibility if damage occurs resulting from failure to properly identify and protect site utilities or equipment in the construction zone. Damaged utilities whether above or below grade, or equipment shall be repaired by the Contractor at no cost to the Government.

Contractor shall not leave any open trench overnight. Excavate only the amount of trenching that can be covered during a normal shift or provide proper coverings as approved by the FM.

4.20 Contractor shall repair any sidewalks, roads, access, grading, etc. damaged/disturbed during construction at no cost to the Government. Areas shall be repaired to the original condition or better as required by the FM.

a. Grade and level traffic areas between the ponds to allow vehicle access for maintenance. A minimum of 10 feet width is required.

b. Provide from one source any fill material required to regrade disturbed or excavated areas.

4.21 Provide typical cut sheets of major equipment, components, or material recommended for installation. Submit shop drawings, testing results, product data submittals, change order requests, safety data sheets, and requests for information (RFI) to the Government for review and acceptance. Government shall have a minimum of 14 days to review and/or respond to each request. Requests received after 2:00 pm EST/EDT will be considered as received the next business day.

4.22 Contractor shall have a minimum of five years of experience performing work of this caliber. Submit certifications on training for HDPE installations and experience related to this type of work.

4.23 Government shall have the right of first refusal for any deconstructed equipment/material.

4.24 Update site plan drawing of any modification performed that impact the current design. Existing site plans are available upon request.

4.25 Modify design drawings to reflect actual construction. As-built (red-line) drawings shall be updated regularly and remain on site for project duration. Red-lines and final as-built/constructed drawings shall be submitted to the Government during project closeout. Note: Red-line drawings are subject to inspection by the FM/COR at any time.

4.26 Complete NEPA checklist and CatEx forms. Reference Attachments 5 and 6.

4.27 Prior to the start of construction, the contractor shall submit shop drawings and manufacturers’ catalog cut sheets for review and approval. All document submittals must be signed and sealed by a Professional Engineer registered in the State of Texas.

4.28 Contractor shall pull all applicable permits prior to the start of construction. The contractor shall adhere to the latest editions of national codes and regulations, and federal, state, and local laws including, but not limited to, the following:

· International Building, Plumbing and Mechanical Codes

· National Fire Protection Code (NFPA)

· National Standard Plumbing Code

· National Electrical Code (NEC)

· National Life Safety Code

· OSHA Regulations

· Environmental Protection Agency (EPA)

· Texas Commission on Environmental Quality

· Texas Water Code

· Texas Administrative Code

5.0 Other Requirements: Moore Air Base is a restricted facility. All work outside of the mentioned days and hours shall be approved by the FM in writing prior to entering the facility.

5.1 Contractor will have limited use of the premises while executing the project. Contractors must sign in and out each day at the Security Guard station. Valid identification is required such as a government-issued driver’s license or identification card. Confine operations to areas within the construction zones. Contractors are not allowed to enter other areas of the facility unless on official business. Exceptions are not allowed. Failure to comply is grounds for dismissal from the facility.

5.2 All vehicles entering the facility shall have proper insurance and registration.

5.3 Roads and surfaces shall be protected from damage. If damaged, roads and surfaces shall be restored to their original or suitable condition as denoted by the FM including removing excessive dirt or compacted mud from paved roads. All repairs and/or clean up are the responsibility of the Contractor.

5.4 Contractor shall always keep driveways and entrances serving the facility clear and available to USDA facility employees and emergency vehicles. Smoking shall only be permitted in an area designated by the Government. Do not use these areas i.e., driveways, entrances, smoking areas, etc. for parking or storing materials.

5.5 Contractor shall be responsible for the care and storage of material and equipment. Material and equipment shall be stored in a suitable manner to protect them from the elements or any other damage. Damage to or loss of contractor equipment or material is at the expense of the contractor. All work, material storage, and construction plant shall be kept within the limits of the areas assigned.

a. Schedule deliveries to minimize the storage of materials and equipment on-site. Contractor is responsible for all stored materials on site. Coordinate with the FM for a preapproved on-site storage location.

b. Contractor is responsible for scheduling, receiving, and off-loading all deliveries.

5.6 Contractor shall be responsible for disposal of all solids within ponds and the old liner. Contractor shall remove all debris and equipment from site after the final inspection and prior to submission of final invoice.

5.7 In addition to any other warranties identified in this contract, the contractor warrants that work performed under this contract conforms to the contract requirements and is free of any defect in equipment, material or workmanship performed by the contractor or any subcontractor or supplier at any tier.

5.8 The contractor shall remedy at the contractor's expense any failure or any defect of equipment, material, workmanship furnished.

5.9 Toilet facilities will not be available for contractor’s use. The contractor shall provide and maintain portable toilets. Toilet(s) shall be placed at the location directed by the FM. To prevent overturning by high winds, all portable toilets shall be anchored down.

5.10 At all times, the plant and work areas shall be kept in a safe condition for workers and base employees. Waste or surplus materials shall not accumulate in the construction areas. Maintain all construction debris in covered containers. Clean the project site of excessive dirt and all construction debris. Contractor shall remove at their expense all construction debris from the site. Clean dust/mud covered roads impacted during construction. Restore area(s) to the same level of clean or better prior to the start of construction.

5.11 Utilize methodologies to minimize airborne particles or fugitive dust.

5.12 Maintain noise pollution at 85 decibels or below per OSHA 1910.95. If contractor believes noise pollution will become a problem, coordinate with the FM for resolution.

6.0 Construction Right-of-Way: The Contractor will be assigned working areas or working right-of-way limits for use during the execution of work under this contract.

7.0 Project Data: Upon request, available as-built or record drawings such as the site survey plan, aerial site photo of proposed site location, site utilities plans, and soil boring shall be provided to the contractor at the kickoff meeting. Drawings provided by the Government are conceptual in nature only and shall be field verified for accuracy. The following information is also available for the contractor’s use:

· APHIS Environmental Protection Program: http://inside.aphis.usda.gov/mrpbs/publications/ep_manual/downloads/environmental_protection_program.pdf

· USDA Green Purchasing Affirmative Procurement Program: http://greening.usda.gov/gpapp08.pdf

· 29 CFR Part 1910 Occupational Safety and Health Standards

· 29 CFR Part 1926 Safety and Health Regulations for Construction

8.0 Contacts

8.1 APHIS Contract Specialist

Jim Roloff

USDA, APHIS, MRPBS, AAMD

250 Marquette Avenue, Suite 410

Minneapolis, MN 55401-2329

Tel. No.: (612) 590-7603 Email: James.G.Roloff@usda.gov

8.2 APHIS Program Specialist

Martha E. Garza

USDA, APHIS, PPQ – Moore Air Base

22675 North Moorefield Road, Bldg. 6407

Edinburg, TX 78541

Tel. No.: (956) 205-7604

Cell No.: (956) 292-1073

Email: Martha.E.Garza@usda.gov

8.3 APHIS Facility Manager (FM)/Contracting Officer Representative (COR) Gabriel Lopez

USDA, APHIS, PPQ – Moore Air Base

22675 North Moorefield Road, Bldg. 6407

Edinburg, TX 78541

Tel. No.: (956) 205-7600/7602

Cell No.: (956) 458-7272

Email: Gabriel.Lopez@usda.gov

8.4 APHIS PPQ National Facility Manager (NFM):

Kirk Richardson

USDA APHIS, PPQ

504 Hemlock Street Davison, MI 48423

Tel. No.: (301) 851-2648

Cell No.: (956) 458-7272, (810) 820-1916

Email: Kirk.F.Richardson@usda.gov

8.5 APHIS Engineering Project Manager (EPM)

Rheta R. Johnson

USDA, APHIS, MRPBS, ASD, EPSB

Room 3A-03.40

4700 River Road, Unit 115

Riverdale, MD 20737

Tel. No.: (301) 851-2638

Email: Rheta.R.Johnson@usda.gov

8.6 APHIS Water Plant Operators

Jose Cabello and Hector Gomez

USDA, APHIS, PPQ – Moore Air Base Moore Air Base

22675 North Moore Field

Building 3702

Edinburg, TX 78541

Tel. No.: (956) 205-7600/7603 Email: Jose.L.Cabello-Lugo@usda.gov and Hector.U.Gomez@usda.gov

8.7 APHIS Safety Officer (Local)

Adan Martinez USDA, APHIS, PPQ – Moore Air Base

22675 North Moorefield Road, Bldg. 6407

Edinburg, TX 78541

Tel. No.: (956) 205-7601

Cell No.: (956) 240-6462

Email: Adan.C.Martinez@usda.gov

8.8 APHIS Environmental Program Manager

Elizabeth Roether USDA APHIS-MRPBS Safety, Health and Environmental Protection Branch

4700 River Road; Unit 124; Rm. 2A-02.38

Riverdale, MD 20737 Tel. No.: (301) 436-3114

Cell No.: (240) 425-8305

Email: Elizabeth.Roether@usda.gov