PWS_FFAN212316_Demo Alert Trailers.docx

PERFORMANCE WORK STATEMENT (PWS)

FOR

Demo Alert Trailers

1.0 General:

1.1 Scope: The contractor shall provide all personnel, equipment, tools, materials, supervision, and quality control necessary, except as specified in Paragraph 3.0 as Government Furnished, to perform the demo of building 229, demo of utilities as identified in the drawings, demo of concrete as identified in the drawings, demo of asphalt as identified in the drawings, and repairing grade as identified in the drawings for storm water management and an end grade that can easily be mowed/maintained, as defined in this PWS.

1.2 Background: The aircraft and engine high power area and the metal storage building are no longer required. The Wing has no longer required this area since the conversion of mission in 2013. This area is maintained by the Civil Engineer Squadron and needs to return to a state that will allow for easy maintenance (mowing) of the area as well as ensuring proper storm water management. The final product will need to ensure that the area doesn’t encourage wildlife to shelter in the area.

1.3 Period of Performance (PoP): The Period of Performance shall be 6 months.

1.4 General Information:

1.4.1 Place and Performance of Services: The contractor shall provide services between the hours of 0700 - 1630 on Monday through Friday, except on recognized US holidays or when the Government facility/installation is closed due to local or national emergencies, administrative closings, or similar Government-directed facility/installation closings. Performance shall be at building 229 and the general area. The contractor shall at all times maintain an adequate work force for the uninterrupted performance of all tasks defined within this PWS when the Government facility/installation is not closed for the above reasons. When hiring personnel, the contractor shall keep in mind that the stability and continuity of the work force are essential. Teleworking is not authorized.

1.4.1.1 Telework:

The Government does not permit the contractor to telework in support of this requirement. In furtherance of Continuity of Operations Planning (COOP), a telework program may be enacted to ensure that the Government's mission-critical operations stay operational during times of national emergency or incidents of national significance. Telework shall be at no additional cost to the Government.

1.4.1.2 Unscheduled gate closures by the Security Police may occur at any time causing all personnel entering or exiting a closed installation to experience a delay. This cannot be predicted or prevented. Contractors are not compensated for unexpected closures or delays. Vehicles operated by contractor personnel are subject to search pursuant to applicable regulations. Any moving violation of any applicable motor vehicle regulation may result in the termination of the contractor employee’s installation driving privileges.

1.4.1.3 The contractor’s employees shall become familiar with and obey the regulations of the installation, including fire, traffic, safety and security regulations while on the installation. Contractor employees should only enter restricted areas when required to do so and only upon prior approval. All contractor employees shall carry proper identification with them at all times and shall be subject to such checks as may be deemed necessary. The contractor shall ensure compliance with all regulations and orders of the installation, which may affect performance. The Government reserves the right to direct the removal of an employee from Government property or revoke access to Government systems for misconduct, security reasons, or any overt evidence of communicable disease. Removal of contractor employees for reasons stated above does not relieve the Contractor from responsibility for total performance of this contract.

1.4.2 Recognized Holidays: The following are recognized United States (US) holidays. The contractor shall not perform services on these days:

1.4.2.1 New Year’s Day: January 1st

1.4.2.2 Martin Luther King, Jr.’s Birthday

1.4.2.3 President’s Day

1.4.2.4 Memorial Day

1.4.2.5 Juneteenth National Independence Day: June 19th

1.4.2.6 Independence Day: July 4th

1.4.2.7 Labor Day

1.4.2.8 Columbus Day

1.4.2.9 Veteran’s Day: November 11th

1.4.2.10 Thanksgiving Day

1.4.2.11 Christmas Day: December 25th

1.4.3 Quality Control (QC): The contractor shall develop and maintain an effective QC Plan (QCP) to ensure services are performed in accordance with this PWS. The contractor shall develop and implement procedures to identify, prevent, and ensure non-recurrence of defective services. The contractor’s QCP is the means by which it assures itself that its work complies with the requirements of the contract. As a minimum, the contractor shall develop QC procedures that address the areas identified in Technical Exhibit 1, Performance Requirements Summary (PRS). A final QCP shall be submitted to the Contracting Officer Representative (COR) NLT 10 days after contract award. After acceptance of the QCP, the contractor shall obtain the Contracting Officer’s (KO’s) acceptance in writing of any proposed changes to its QCP.

1.4.4 Quality Assurance (QA): The Government will evaluate the contractor’s performance under this contract in accordance with the Quality Assurance Surveillance Plan (QASP). This plan is primarily focused on what the Government will do to ensure that the contractor has performed in accordance with the performance standards. It defines how the performance standards will be applied, the frequency of surveillance, and acceptable quality level(s) or defect rate(s).

1.4.5 Access and General Protection/Security Policy and Procedures. The contractor shall comply with all applicable installation/facility access and local security policies and procedures, which may be obtained from the Contracting Officer’s Representative (COR). The contractor shall also provide all information required for background checks to meet installation access requirements to be accomplished by the local installation’s Security Forces, Director of Emergency Services or local Security Office. The contractor shall ensure compliance with all personal identity verification requirements as directed by DoD, Headquarters Air Force (HAF) and/or local policy. Should the Force Protection Condition (FPCON) change, the Government may require changes in contractor security matters or processes.

1.4.5.1 The contractor shall obtain base identification and vehicle passes, if required, for all contractor personnel who make frequent visits to or perform work on the Air Force installation(s) cited in the contract. Contractor personnel are required to wear or prominently display installation identification badges or contractor-furnished, contractor identification badges while visiting or performing work on the installation.

1.4.5.2. The contractor shall submit a written request on company letterhead to the contracting officer listing the following: contract number, location of work site, start and stop dates, and names of employees and subcontractor employees needing access to the base. The letter will also specify the individual(s) authorized to sign for a request for base identification credentials or vehicle passes. The contracting officer will endorse the request and forward it to the issuing base pass and registration office or Security Forces for processing. When reporting to the registration office, the authorized contractor individual(s) should provide a valid driver s license, current vehicle registration, valid vehicle insurance certificate, and [insert any additional requirements to comply with local security procedures] to obtain a vehicle pass.

1.4.5.3. During performance of the contract, the contractor shall be responsible for obtaining required identification for newly assigned personnel and for prompt return of credentials and vehicle passes for any employee who no longer requires access to the work site.

1.4.5.5. Upon completion or termination of the contract or expiration of the identification passes, the prime contractor shall ensure that all base identification passes issued to employees and subcontractor employees are returned to the issuing office.

1.4.5.6. Failure to comply with these requirements may result in withholding of final payment.

1.4.5.7 For Contractors that do not require CAC, but require access to a DoD Facility and/or Installation. Contractor and all associated sub-contractors employees shall comply with adjudication standards and procedures using the National Crime Information Center Interstate Identification Index (NCIC-III) and Terrorist Screening Database (TSDB) (Air Force Instruction (AFI) 10-245, AFI 31-101 and Air Force Manual (AFMAN) 31-113), applicable installation, facility and area commander installation/facility access and local security policies and procedures (provided by Government representative)

1.4.5.5 Communications Security/Information Technology (COMSEC/IT) Security. All communications with DoD organizations are subject to COMSEC review. All telephone communications networks are continually subject to intercept by unfriendly intelligence organizations. DoD has authorized the military departments to conduct COMSEC monitoring and recording of telephone calls originating from, or terminating at, DoD organizations. Therefore, the contractor is advised that any time contractor personnel place or receive a call they are subject to COMSEC procedures. The contractor shall ensure wide and frequent dissemination of the above information to all employees dealing with DoD information. The contractor shall abide by all Government regulations concerning the authorized use of the Government's computer network, including the restriction against using the network to recruit Government personnel or advertise job openings.

1.4.6 Physical Security. The contractor shall safeguard all Government property provided for contractor use. At the close of each work period, Government facilities, equipment and materials shall be secured.

1.4.6.1 Key Control NOTE: All references to keys include key cards. The contractor shall establish and implement methods of ensuring that no keys/key cards issued by the Government are lost or misplaced or are used by unauthorized persons. No keys issued by the Government shall be duplicated. Such procedures shall include turn-in of any issued keys by personnel who no longer require access to locked areas. The contractor shall include procedures covering key control in the QCP.

1.4.6.1.1 The contractor shall immediately report any occurrences of lost or duplicated keys/key cards to the COR.

1.4.6.1.2 In the event keys, other than master keys, are lost or duplicated, the contractor shall, upon direction by the KO, re-key or replace the affected lock or locks; however, the Government, at its option, may replace the affected lock or locks or perform re-keying. When the Government replaces or re-keys the locks, the Government will deduct the total cost of lock replacement or re-keying from the monthly payment due the contractor. In the event a master key is lost or duplicated, the Government will replace all locks and keys for that system, and will deduct the total cost from the monthly payment due the contractor.

1.4.6.1.3 The contactor shall prohibit the use of the Government issued keys/key cards by any persons other than the contractor’s employees. The contractor shall prohibit the opening of locked areas by contractor employees to permit entrance of persons other than contactor employees engaged in the performance of services in those areas, or personnel authorized entrance by the KO.

1.4.9 Contract Manager (CM): The contactor shall designate a CM who shall ensure performance under this contract. The name of this person, and an alternate who shall act for the contractor when the CM is absent, shall be designated in writing to the KO. The CM or alternate shall have full authority to act for the contractor on all contract matters relating to daily operation of this contract. The CM shall work through the COR, to resolve issues, receive technical instructions, and ensure adequate performance of services. The CM shall ensure that contractor employees do not perform any services outside the scope of the contract without an official modification issued by the KO. The CM shall ensure contractor employees understand that services performed outside the scope of the contract are performed wholly at the expense of the contractor.

1.4.10 Identification of Contractor Employees: All contractor personnel attending meetings, answering Government telephones and working in other situations where their contractor status is not obvious to third parties are required to identify themselves as such to avoid creating an impression that they are Government employees. The contractor shall ensure that all documents or reports produced by contractor personnel are suitably marked as contractor products or that contractor participation is appropriately disclosed. The contractor’s status as a “contractor” shall be predominantly displayed in all correspondence types (to include signature blocks on e-mail) and dealings with Government or non-Government entities. Contractor personnel shall wear identification badges distinguishing themselves as such. The badges shall have the company name, employee name and the word “contractor” displayed.

1.4.10.1 The contractor shall retrieve all identification media (including vehicle passes) from its employees who depart employment for any reason. The contractor shall return all identification media (i.e., badges and vehicles passes) to the KO within 14 days of an employee’s departure.

1.4.11. Combating Trafficking in Persons: The United States Government has adopted a zero tolerance policy regarding trafficking in persons. Contractors and contractor employees shall not engage in severe forms of trafficking in persons during the period of performance of the contract; procure commercial sex acts during the period of performance of the contract; or use forced labor in the performance of the contract. The Contractor shall notify its employees of the United States Government’s zero tolerance policy, the actions that will be taken against employees for violations of this policy. The contractor shall take appropriate action, up to and including termination, against employees or subcontractors that violate the US Government policy as described at FAR 22.17.

1.4.13 Data Rights The Government has unlimited rights to all documents/materials produced under this contract. All documents and materials, to include the source codes of any software, produced under this contract shall be Government owned and are the property of the Government with all rights and privileges of ownership/copyright belonging exclusively to the Government. These documents and materials may not be used or sold by the contractor without written permission from the KO. All materials supplied to the Government shall be the sole property of the Government and may not be used for any other purpose. This right does not abrogate any other Government rights.

1.4.14 Organizational Conflicts of Interest (OCI): The contractor and subcontractor personnel performing services under this contract may receive, have access to or participate in the development of proprietary or source selection information (e.g., cost or pricing information, budget information or analyses, specifications or work statements, etc.) or perform evaluation services which may create a current or subsequent OCIs, as defined in FAR Subpart 9.5. The contractor shall notify the KO immediately whenever it becomes aware that such access or participation may result in any actual or potential OCI and shall promptly submit a plan to the KO to avoid or mitigate any such OCI. The contractor’s mitigation plan will be determined to be acceptable solely at the discretion of the KO. In the event the KO unilaterally determines that any such OCI cannot be satisfactorily avoided or mitigated, the KO may impose other remedies as he or she deems necessary, including prohibiting the contractor from participation in subsequent contracted requirements which may be affected by the OCI.

2.0 Definitions and Acronyms:

2.1 Definitions:

2.1.1 Contractor: A supplier or vendor awarded a contract to provide specific supplies or service to the Government. The term used in this contract refers to the prime.

2.1.2 Defective Service: A service output that does not meet the standard of performance associated with the PWS.

2.1.3 Deliverable: Anything that can be physically delivered and includes non-manufactured things such as meeting minutes or reports.

2.1.4 Key Personnel: Contractor personnel that are evaluated in a source selection process and that may be required to be used in the performance of a contract by the PWS. When key personnel are used as an evaluation factor in best value procurement, an offer can be rejected if it does not have a firm commitment from the persons that are listed in the proposal.

2.1.5 Physical Security: Actions that prevent the loss or damage of Government property.

2.1.6 Quality Assurance: The Government procedures to verify that services being performed by the Contractor are performed according to acceptable standards.

2.1.7 Quality Assurance Surveillance Plan (QASP): An organized written document specifying the surveillance methodology to be used for surveillance of contractor performance.

2.1.8 Quality Control: All necessary measures taken by the Contractor to ensure that the quality of an end product or service shall meet contract requirements.

2.1.9 Subcontractor: One that enters into a contract with a prime contractor. The Government does not have privity of contract with the subcontractor.

2.2 Acronyms:

3.0 Government Furnished Property, Material, Equipment and Services (GFP/M/E/S): The Government will provide the property, material, equipment, and/or services listed below solely for the purpose of performance under this contract:

3.1 Property: None

3.2 Materials: Fill dirt will be provided at location identified below.

3.3 Equipment: None

3.4 Services: None

3.5 Utilities: Water a nearest fire hydrant will be provided for water requirements listed.

4.1 Contractor Furnished Property, Materials, and Equipment (CFP/M/E):

4.1 General: Except for those items specifically stated to be Government-Furnished in Paragraph 3.0, the contractor shall furnish everything required to perform these services as indicated in Paragraph 1.1.

5. Requirements: The contractor shall:

5.1 Locates are required prior to every dig and when markings become indistinguishable for any reason (other work performed, weather, etc.).

5.2 Construction debris shall be recycled or reused to the greatest extent practical.

5.3 The contractor shall recycle, reclaim, or reuse materials to avoid, to the greatest extent practical, disposing of waste generated as part of the project in landfills or incinerators.

5.4 Solid waste (the typical items found in municipal waste streams) such as paper, metal, glass, plastic, etc. shall be recycled, to the greatest extent practical.

5.5 Landscape waste, such as trees, limbs and other vegetation shall be processed, greatest extent practical, for composting.

5.6 Industrial type waste such as tires, motor oil, batteries, etc., generated because of contractor project operations shall be recycled.

5.7 The contractor shall report quantity of all waste generated and quantity recycled or reused to the KO on a quarterly basis. The contractor shall also provide costs or proceeds associated with the disposal or diversion of wastes generated from projects.

5.8 All earth and dirt material may NOT be removed from the installation. The Contracting Officer Representative (COR) will direct where placement of material may be stored if not specifically addressed.

5.9 Bi-weekly in-person progress meetings will be conducted @ building 410 and attended by project manager and representative of applicable sub-contractors.

5.9.1 Itinerary will be developed by contractor.

5.9.2 Updates to the schedule will be made and provided at each meeting. Highlight demolition activities.

5.9.3 Meeting minutes will be taken by the contractor and provided afterwards for quality documentation of progress made.

5.10 Provide an environmental protection plan.

5.11 Provide an accident prevention plan.

5.11.1 Provide accident reports within 24 hours of the incident.

5.12 Provide a quality control plan.

5.13 Provide a waste management plan.

5.14 Provide a final waste diversion report.

5.14.1 Provide report of total tonnage dumped in the landfill.

5.14.2 Provide report of total tonnage of recycled material.

5.14.3 Provide report of total tonnage of material diverted from landfill.

5.15 Provide compaction reports for every 12” lift of fill material.

5.16 Provide seeding product data.

5.16.1 Provide warranty information.

5.16.2 Provide fertilizer analysis.

5.16.3 Provide tackifier product data.

5.16.4 Provide legumes product data.

5.16.5 Provide fungicide product data.

5.16.6 Provide sticking agent product data.

5.16.7 Provide degradable wood cellulose fiber mulch product data.

5.17 Provide Concrete Strength Testing Report.

5.17.1 Provide company testing certification.

5.17.2 Provide concrete design mixture.

5.17.3 Provide concrete product data.

5.17.4 Provide concrete reinforcement product data.

5.18 Provide Joint Sealant Product Data.

5.18.1 Provide joint sealant color selection.

5.18.2 Provide joint sealant warranty.

5.19 Provide Fire Suppression Water Service System Product Data.

5.19.1 Provide Fire Suppression Water Service System Manufacturer’s Qualifications.

5.19.2 Provide Fire Suppression Water Service System Installer’s Qualifications.

5.19.3 Provide Fire Suppression Water Service System Product Data, Shop Drawings, and Maintenance Data Contractors Material and Testing Certificate for Underground Piping.

5.20 Provide Topsoil Test Reports.

5.21 Provide Contractors Utility Tracer Wire Continuity Report.

5.22 Provide contractors final closeout punch list.

5.23 Provide final warranty information and closeout documents.

5.24 CLIN #1 (DEMO – 536): Remove and demolish two (2) alert trailers identified in the provided drawings.

5.24.1 Provide testing for the following:

5.24.1.1 Lead paint testing for two alert trailers building 316 prior to demolition.

5.24.1.2 Asbestos testing for two alert trailers building 316 prior to demolition.

5.24.1.2.1 The Contractor shall complete IDNR Form 542-1476, pay any required fees, and provide certified mail receipt with copy of completed form to the COR and EMO. The form is included at https://www.iowadnr.gov/Environmental-Protection/Air-Quality/Asbestos-Training-Fires.

5.24.2 Protect existing pavements to remain as indicated in the drawings.

5.24.2.1 All pavement/sidewalk if damaged will be repaired and replaced at no expense to the Government.

5.24.3 Remove pavement as indicated in the drawings.

5.24.4 Demolish two (2) trailers as indicated in the drawings.

5.24.4.1.1 Demo all foundations.

5.24.4.1.2 Demo all decking with foundations.

5.24.4.1.3 Demo all stairs and footings.

5.24.4.1.4 Demo AC unit and equipment pad (UFC 3-410-01).

5.24.4.1.5 Demo gas line to existing main with removal of gas line tee and provide required patch (UFC 3-430-05) as indicated in the drawing.

5.24.4.1.6 Demo hydrant valve and water line to existing main, see drawings.

5.24.4.1.7 Demo sanitary sewer line to existing lift station, see drawings.

5.24.4.2 Move and stack retaining wall at new location.

5.24.4.2.1 Bricks to be retained on site and stacked here:

5.24.4.3 Electric lines to be disconnected by Government.

5.25 CLIN #2 (Maintenance – 521): Repair grade to elevations provided by drawings.

5.25.1 Provide earth fill according to UFC 3-201-01 & UFC 3-201-02

5.25.1.1 Reference to percent maximum density shall mean a soil density not less than the stated percentage of maximum density for soil as determined by ASTM D698, "Moisture Density Relations of Soils", using 5.5-lb. rammer and 12-inch drop (Standard Proctor Method).

5.25.1.2 Earth: All materials not classified as rock or rubble including loam, silt, gumbo, peat, clay, soft shale, sand, gravel, and fragmentary rock or boulders which can be handled by normal earth moving equipment.

5.25.1.3 Topsoil: Organic well-draining soil free from clay lumps, rocks, stones, concrete, toxic minerals, roots over 1/4" in diameter or other material which will not provide good turf growth. Secure from stripping operations as required or provide as necessary for finish grading.

5.25.1.4 Erosion Protection

5.25.1.4.1 Code Compliance: The Contractor shall comply with soil erosion control requirements of the Iowa Code, the Iowa Department of Natural Resources NATIONAL POLLUTANT DISCHARGE ELIMINATION SYSTEM (NPDES) STORM WATER Permit, the construction drawings, and local ordinances. The Contractor shall take all necessary measurements to protect against erosion and dust pollution on this project site and all off-site borrow or deposit areas, during performance or because of performance.

5.25.1.4.2 Damage claims: The Contractor will hold the Owner harmless from all claims of any type whatsoever resulting from damages to adjoining public or private property, including reasonable attorney's fees incurred to Owner. Further, if the Contractor fails to take necessary steps to promptly remove earth sedimentation or debris which comes onto adjoining public or private property, the Owner may, but need not, remove such items and deduct the cost thereof from amounts due the Contractor.

5.25.1.4.3 The Contractor shall be responsible for compliance and fulfillment of all requirements of the Storm Water Pollution Prevention Plan and the NPDES General Permit No. 2 for Storm Water Discharge Associated with Industrial Activity for Construction Activities.

5.25.1.5 Protection of existing utilities: The contractor shall protect existing gas, electric, water, fiber optic, subdrain lines, storm and sanitary service lines encountered during construction not identified by the drawings for demo. Any damages shall be repaired by the Contractor to the Contracting Officer specifications at the Contractor’s expense.

5.25.1.6 Grading and associated storm water runoff will not adversely affect surrounding sites (UFC 1-200-01 Paragraph 2-18.1.) to include Des Moines International Airport operations.

5.25.1.7 Grading and slope will direct storm water drainage to Southwest (UFC 3-201-1 Paragraph 2.9).

5.25.1.7.1 Pervious Surfaces (Grass, Turf, or Landscape) will have minimum 2% slope.

5.25.1.7.2 Grading will not result in low spots that holds water or that direct water towards new or existing site features (UFC 3-201-1 Paragraph 2.9).

5.25.1.7.3 Place no roots, brush, grass, or other organic material in fill under buildings, pavement, and pond areas. Place no material on fill when material or foundation is frozen.

5.25.1.7.4 Select material for each portion of fill with approval of the Contracting Officer Representative (COR); select materials to avoid sharp change in texture.

5.25.1.7.5 Use fill material free of lenses, pockets, streaks, or layers of materials differing from surrounding materials.

5.25.1.7.6 Construct fill in horizontal layers not more than 12 inches in loose thickness.

5.25.1.7.7 Deposit each layer over full width of fill as separate and distinct operation.

5.25.1.7.8 After layer is deposited, smooth to uniform depth by means of suitable motor patrol or bulldozer.

5.25.1.7.9 Maintain fill in free draining condition, provide drainage for any water or springs which may be encountered, except in the pond areas.

5.25.1.7.10 If soft or yielding materials are encountered within fill areas due to trapped water, remove unstable materials and replace with suitable materials and compact.

5.25.2 Soil Compaction

5.25.2.1 Contractor is responsible for all required compaction tests. Contractor will engage a qualified independent geotechnical engineering testing agency to perform field quality control testing.

5.25.2.1.1 Allow testing agency to inspect and test subgrades and fill layer. Proceed with subsequent earthwork only after test results for previously completed work comply with requirements.

5.25.2.1.2 Perform soil density and moisture tests on earthwork at locations selected by Owner to show compliance of compaction with specifications. Provide one test every 1,800 square yards of subgrade preparation, 1,800 square yards of fill placement, or as may be required by geotechnical engineer. Intent is to provide sufficient test to adequately control and represent the compaction procedures.

5.25.2.1.3 If compaction fails density and moisture tests, rework fill until specified density and moisture is obtained; Contractor shall pay all costs for testing and retesting.

5.25.2.2 Compact all materials placed in fill.

5.25.2.2.1 Provide soil compaction for every lift 12 inches (max) lift.

5.25.2.3 Compact selected materials in horizontal layers with tamping or sheepsfoot roller; use roller designed to provide at least 200 psi distributed on one row of knobs; tamping feet must project not less than 6½ inches from face of drum.

5.25.2.4 Compact layer by rolling with tamping type roller until full weight of roller is supported by tamping feet.

5.25.2.5 Remove stones over 3 inches in size from subgrade and stockpile as directed by Contracting officer.

5.25.2.6 Roller will be supported entirely on its tamping feet when feet do not penetrate more than 3 inches into material being compacted.

5.25.2.7 If soil is wet so that it will not sufficiently compact by one passage of roller per inch of loose thickness, provide one discing per 2 inches of loose thickness.

5.25.2.7.1 Cut and stir full depth of layer.

5.25.2.7.2 Allow interval of no longer than 2 hours between successive discings, or as directed by Geotechnical Engineer.

5.25.2.7.3 After discing is completed, compact layer by specified rolling.

5.25.2.8 If soil is dry so that it will not satisfactorily compact by rolling, moisten material before compaction; manipulate material to secure proper distribution of moisture before compaction.

5.25.2.9 Compact fill slopes progressively until slopes are stable.

5.25.2.10 Place fill and compact on all sides of structures to same level as fill operation progresses to protect structures against displacement or other damage.

5.25.2.11 Areas adjacent to structures which cannot be tamped with rollers: hand tamp with mechanical tamper to same degree of compaction as specified for other parts of fill.

5.25.2.12 Whenever operations are suspended during period, when rain is likely to occur, smooth and compact surface to shed water readily.

5.25.2.13 Compact all fill material in non-paved areas to not less than 85% maximum density as determined by ASTM D698 (Standard Proctor Method) with moisture content within 0% to plus 4% points optimum moisture.

5.25.3 Subgrade Preparation

5.25.3.1 Compact upper 12 inches with moisture and density control (85% Standard Proctor Compaction Density). Moisture content to be 0% to 4% points of optimum.

5.25.3.2 Excavate top 6 inches of subgrade, scarify, pulverize, mix and recompact with moisture and density control. Pulverize, mix, and replace top 6 inches of subgrade and compact with moisture and density control (85% Standard Proctor Compaction Density).

5.25.3.3 Other methods for construction of subgrade preparation may be considered for use if uniform composition of finished subgrade is obtained and moisture and density tests taken at top of final subgrade and at 6 inches below top of final subgrade meet specified requirements as approved by Contracting Officer (KO).

5.25.3.4 Remove stones over 3 inches in size from subgrade and stockpile as directed by Contracting officer.

5.25.3.5 If ruts or other objectionable irregularities form in subgrade during construction, reshape and reroll subgrade before placing pavement, fill ruts or other depressions with material like other subgrade material and compact.

5.25.3.6 Construct to elevation and cross section such that, after rolling, surface will be above required subgrade elevation.

5.25.3.7 Proof roll subgrade with loaded tandem axle truck to determine uniformity and stability of subgrade.

5.25.3.8 If soft or yielding areas are located, remove unstable materials, and replace with suitable materials and compact as specified.

5.25.3.9 Complete final subgrade within drive areas by excavation to grade by use of steel-shod template supported on side forms or support rollers or by use of automatically controlled subgrade excavating machine.

5.25.3.10 Check subgrade elevation and grade within drives and parking areas by method approved by Contracting Officer prior to paving.

5.25.3.11 Maintain subgrade prior to and during paving operations; repair any damaged or disturbed areas prior to paving.

5.25.4 Finish Grading

5.25.4.1 Finish excavating and fill areas to conform to lines, grades, and slopes as shown on drawings.

5.25.4.2 Maximum allowable variation in finished earth grade from design grade outside of paved areas is 0.2 feet. Grade and slope all earth surfaces to drain.

5.25.4.3 Smooth and finish all earth surfaces disturbed by construction operations.

5.25.4.4 Provide continuous use of blade grader, dozer or similar equipment of adequate size and power to handle materials encountered during finishing of excavation and fill.

5.25.4.5 Place topsoil as required for finish grading to a minimum 6-inch depth.

5.25.4.6 Top all disturbed areas with 2” of compost, see drawing note for compost requirement.

5.25.4.7 Disc earth surfaces to depth of 3 inches and verify placement of topsoil, minimum 6 inches of depth on finished earth surfaces; smooth and grade ready for turf bed preparation.

5.25.4.8 Smooth the seedbed with a cultivator-type tillage tool having a rake bar or a rock rake. Pick up and remove all debris, such as rocks, stones, concrete larger than 1/2 inch, or roots and other objectionable material that will interfere with the seeding operation. A spring tooth cultivator may be used in lieu of a rock picker. Remove the rock by hand after each use of the cultivator; repeat the process until the soil is relatively free of rock as determined by the contracting officer (KO).

5.25.4.9 Schedule and coordinate topsoil respreading with hydroseeding operations.

5.25.5 Hydraulic Seeding.

5.25.5.1 Seed:

5.25.5.1.1 Provide fresh, clean, new crop, certified seed complying with tolerance for germination and purity and free of poa annua, bent grass, and noxious weed seed. Furnish all seeds, including grass, legume, forbs, and cereal crop seeds, from an established seed dealer or certified seed grower. All materials and suppliers are to follow Iowa Seed Law and Iowa Department of Agriculture and Land Stewardship regulations and be labeled accordingly.

5.25.5.1.1.1 Provide turfgrass with a certified “blue tag” or "gold tag."

5.25.5.1.1.2 Provide native grass and forbs that are source-identified as G0-Iowa certified "yellow tag," when available. If G0-Iowa certified "yellow tag" sourced seed is unavailable, or is only available from a single source, a substitution may be approved by the Contracting Officer Representative (COR).

5.25.5.1.2 Mix seed to the specified proportions by weight. Use methods approved by the Contracting Officer Representative (COR).

5.25.5.1.3 Seed Quality: Ensure the seed provided meets or exceeds the minimum requirements of purity and germination stated on an independent certificate of seed analysis document according to the Association of Official Seed Analysis (AOSA) rules. The seed certification tag and seed analysis document provided must be from the same lot number as shown on the seed tag. Ensure the date of test results is no greater than 9 months from the seed application date. Approval of all seed for use will be based on the accumulated total of Pure Live Seed (PLS) for each phase of work. PLS is obtained by multiplying purity times germination. PLS shall not be less than the accumulated total of the PLS specified.

5.25.5.1.3.1 If the seed does not comply with minimum requirements for purity and germination and such seed cannot be obtained, the Contracting Officer Representative (COR) may approve use of the seed on a basis of PLS or may authorize a suitable substitution for the seed specified.

5.25.5.1.4 Requirements on Containers:

5.25.5.1.4.1 Seed: Provide seed with a tag on each container. Ensure the seed analysis on the label is mechanically printed.

5.25.5.1.4.2 Mulch: When packaged, provide mulch in new labeled containers.

5.25.5.1.4.3 Tackifier: Provide tackifier packaged in new labeled containers.

5.25.5.1.4.4 Inoculant: Use inoculant that has a manufacturer’s container, indicating the specific legume seed to be inoculated and the expiration date. All inoculants must meet requirements of the Iowa Seed Law. Follow precautions specified on the product label.

5.25.5.1.4.5 Sticking Agent: Use a commercial sticking agent recommended by the manufacturer of the inoculant. For quantities less than 50 pounds, the sticking agent need not be a commercial agent but requires approval by the Contracting Officer Representative (COR). Apply sticking agent separately prior to application of inoculant. Follow safety precautions specified on the product label.

5.25.5.2 Seed Mixtures and Seeding Dates

5.25.5.2.1 Permanent Lawn Mixture (Type 1 - SUDAS Division 9): Used for residential and commercial turf site, fertilized, and typically mowed. Use between March 1 and May 31 and between August 10 and September 30.

5.25.5.3 Fertilizer:

5.25.5.3.1 Use fertilizer of the grade, type, and form specified that complies with rules of the Iowa Department of Agriculture and Land Stewardship and the following requirements:

5.25.5.3.2 Grade: Identify the grade of fertilizer according to the percent nitrogen (N), percent of available phosphoric acid (P2O5), and percent water soluble potassium (K2O), in that order, and base approval on that identification. The Contractor may substitute other fertilizer containing analysis percentages different from those specified, provided that the minimum amounts of actual nitrogen, phosphate, and potash per acre are supplied, and that in no case does the total amount per acre of the three fertilizer elements be exceeded by 30% of the following minimum amounts.

5.25.5.3.2.1 For Hydraulic Seeding: Apply fertilizer in combination with seeding by a hydraulic seeder and as specified in Iowa DOT Article 2601.03, B. Apply a commercial fertilizer or the equivalent units of nitrogen, phosphate, and potash at the rate specified for the type of seeding being applied.

5.25.5.3.3 Type: Use fertilizer that can be uniformly distributed by the application equipment. Furnish fertilizer either as separate ingredients or in chemically combined form.

5.25.5.4 Sticking Agent:

5.25.5.4.1 Use a sticking agent that is a commercial material recommended by the manufacturer to improve adhesion of inoculant to the seed. For small quantities less than 50 pounds, the sticking agent need not be a commercial agent, but it must be approved by the Contracting Officer Representative (COR) and must be applied separately, prior to application of inoculant.

5.25.5.4.2 Follow safety precautions specified on the product label. A sticking agent is not required if a liquid formulation of inoculant is used.

5.25.5.5 Inoculant for Legumes:

5.25.5.5.1 An inoculant is a culture of bacteria specifically formulated for each legume seed (alfalfa, clovers, lespedesa, and hairy vetch). Ensure the manufacturer’s container indicates the specific legume seed to be inoculated and the expiration date. Use inoculant that meets the requirements of the Iowa Seed Law. Follow the safety precautions specified on the product label.

5.25.5.6 Water:

5.25.5.6.1 Use water that is free of any substance harmful to seed germination or plant growth.

5.25.5.7 Mulch:

5.25.5.7.1 Wood Cellulose:

5.25.5.7.1.1 Use material that is a natural or cooked cellulose fiber processed from whole wood chips, or a combination of up to 50% of cellulose fiber produced from whole wood chips, recycled fiber from sawdust, or recycled paper (by volume).

5.25.5.7.1.2 Product contains a colloidal polysaccharide tackifier adhered to the fiber to prevent separation during shipment and avoid chemical co-agglomeration during mixing.

5.25.5.7.1.3 Form a homogeneous slurry of material, tackifier, and water.

5.25.5.7.1.4 Use a slurry that can be applied with standard hydraulic mulching equipment.

5.25.5.7.1.5 Dye the slurry green to facilitate visual metering during application.

5.25.5.7.1.6 Do not use materials that have growth or germination-inhibiting factors or any toxic effect on plant or animal life when combined with seed or fertilizer.

5.25.5.7.2 Bonded Fiber Matrix (BFM):

5.25.5.7.2.1 Manufactured to be applied hydraulically.

5.25.5.7.2.2 Dyed to facilitate visual metering.

5.25.5.7.2.3 All components pre-packaged by manufacturer to ensure material performance and compliance. Field mixing of additives or any components will not be allowed.

5.25.5.7.2.4 Meet the following requirements:

5.25.5.7.2.4.1 Contain non-toxic tackifiers that upon drying become insoluble and non-dispersible to eliminate direct raindrop impact on soil according to ASTM D 7101 and EPA 2021.0-1.

5.25.5.7.2.4.2 Contain no germination or growth inhibiting factors and do not form a water-resistant crust that can inhibit plant growth.

5.25.5.7.2.4.3 Hydraulic mulch that is completely photo-degradable or biodegradable.

5.25.5.7.2.4.4 Have a rainfall event (R-factor) of 140 < R according to ASTM D 6459.

5.25.5.7.2.4.5 Have a cover factor of C ≤ 0.03 according to ASTM D 6459.

5.25.5.7.2.4.6 Vegetation Establishment of 400% minimum according to ASTM D 7322.

5.25.5.7.2.4.7 Water Holding Capacity 600% minimum according to ASTM D 7367.

5.25.5.7.3 Mechanically-Bonded Fiber Matrix (MBFM):

5.25.5.7.3.1 Manufactured to be applied hydraulically.

5.25.5.7.3.2 Dyed to facilitate visual metering.

5.25.5.7.3.3 All components pre-packaged by manufacturer to ensure material performance and compliance. Field mixing of additives or any components will not be allowed.

5.25.5.7.3.4 Meet the following requirements:

5.25.5.7.3.4.1 Contain non-toxic tackifiers that upon drying become insoluble and non-dispersible to eliminate direct raindrop impact on soil according to ASTM D 7101 and EPA 2021.0-1.

5.25.5.7.3.4.2 Contain no germination or growth inhibiting factors and do not form a water-resistant crust that can inhibit plant growth.

5.25.5.7.3.4.3 Hydraulic mulch that is completely photo-degradable or biodegradable.

5.25.5.7.3.4.4 Have a rainfall event (R-factor) of 162 < R according to ASTM D 6459.

5.25.5.7.3.4.5 Have a cover factor of C ≤ 0.01 according to ASTM D 6459.

5.25.5.7.3.4.6 Vegetation establishment of 500% minimum according to ASTM D 7322.

5.25.5.7.3.4.7 Water holding capacity of 700% minimum according to ASTM D 7367.

5.25.5.8 Application Process:

5.25.5.8.1 Combination: Place all material, seed, fertilizer, mulch, and tackifier (if applicable) in hydraulic mulching equipment specifically manufactured for hydraulic seeding.

5.25.5.8.2 Separate: At the Contractor’s option and at no additional cost to the Contracting Authority, the hydraulic seeding, fertilizing, and mulching may be undertaken separately. If hydraulic seeding is done separately, add 50 pounds of wood cellulose fiber complying with Section 9010, 2.07, B as a tracer for each 500 gallons of water in the hydraulic seeder tank. If operations are undertaken separately, complete fertilizing and mulching application within 24 hours of completing seeding work. Do not separate the applications if inclement weather is forecasted within 24 hours of the scheduled application period.

5.25.5.8.3 Ensure the hydraulic equipment, pump, and application process do not damage or crack seeds.

5.25.5.8.4 Mix materials with fresh potable water using a combination of both recirculation through the equipment's pump, and mechanical agitation to form a homogeneous slurry.

5.25.5.8.5 Apply mixture within 1 hour after seed and fertilizer are placed in the hydraulic seeder.

5.25.5.8.6 If necessary, dampen dry, dusty soil, to prevent balling of the material during application.

5.25.5.8.7 Apply the slurry evenly over all specified areas at component material rates specified.

5.25.5.8.7.1 Wood Cellulose Mulch:

5.25.5.8.7.1.1 Mulch: Minimum 3,000 lb/acre dry weight.

5.25.5.8.7.1.2 Tackifier: Minimum 50 lb/acre.

5.25.5.8.7.2 Bonded Fiber Matrix: Minimum 3,000 lb/acre dry weight.

5.25.5.8.7.3 Mechanically bonded Fiber Matrix: Minimum 3,000 lb/acre dry weight.

5.25.5.8.7.4 Retain and count empty bags of mulch to ensure final application rate.

5.25.5.8.8 Watering.

5.25.5.8.8.1 Provide equipment, transportation, water tanker, hoses, and sprinklers.

5.25.5.8.8.2 Tanker can be filled on base as needed.

5.25.5.8.8.3 Use enough water to keep the soil and mulch moist to a depth of 1 inch and ensure growth of the seed. For turfgrass seeding areas, sufficiently water to keep the soil moist for a minimum of 60 days. If natural rainfall is adequate to keep the soil and mulch moist, artificial watering may not be needed.

5.25.5.9 Re-seeding.

5.25.5.9.1 When all work related to seeding, fertilizing, and/or mulching has been completed on an area, and is washed out or damaged, re-seed, fertilize, and/or mulch the area at the contract unit price(s) when so ordered by the Contracting Officer (KO).

5.25.5.9.2 When work related to seeding, fertilizing, and/or mulching has not been completed in an area and is washed out or damaged, re-seed, fertilize, and/or mulch the area as necessary at no additional cost to the Contracting Officer (KO).

5.25.5.10 Clean Up.

5.25.5.10.1 All work related to clean up throughout the project and upon completion is the responsibility of the Contractor, at no additional cost to the Government.

5.25.5.10.2 Remove all excess materials, debris, and equipment upon completion of work.

5.25.5.10.3 Clean all paved surfaces open for public use at the end of each day and prior to forecasted precipitation.

5.25.5.10.4 Repair any damage resulting from seeding operations.

5.25.5.10.5 Remove hydraulic slurry and other excess debris related to seeding operations from buildings, landscaping, mulch, pavement, signs, signposts, and any other areas not specified for application, at the end of each day.

5.25.5.11 Acceptance.

5.25.5.11.1 Guarantee in writing that all work has been completed as specified and provide the date that all activities were completed. When a warranty is a separately-bid item, this also establishes the beginning of the warranty period.

5.25.5.11.2 Acceptance will occur, provided seeded areas are in a live, healthy, growing, and well-established condition without eroded areas, bare spots, weeds, undesirable grasses, disease, or insects.

5.25.5.11.3 Projects without a separately-bid warranty will be accepted no sooner than 60 days from the date that all activities were completed.

5.25.5.11.4 When a warranty is established as a bid item and the warranty period exceeds 60 days, projects may be accepted after all specified work, excluding the warranty, is satisfactorily completed, and a supplemental contract for the warranty is executed according to the Code of Iowa Section 573.27

5.25.5.12 Warranty.

5.25.5.12.1 The warranty is to guarantee completed seeding areas for a maximum period of twelve months.

5.25.5.12.2 During the warranty period, correct and reseed any defects in the seeded areas and grass stand, such as weedy areas, eroded areas, and bare spots, until all affected areas are accepted by the Contracting Officer Representative (COR).

5.25.5.12.3 Replace or repair to original condition, all damages to property resulting from the seeding operation or from the remedying of defects, at the Contractor’s expense.

5.25.6 Acquire fill (Earth) dirt from designated location on base, slope, finish grade, seed, and water as directed by guidance previously provided. Do not acquire from an area just freshly seeded.

5.25.6.1 All locations where fill dirt is acquired must:

5.25.6.1.1 Finish slope will not change storm water runoff.

5.25.6.1.2 Finish grade at these locations must be easily mowed and maintained, approved by Contracting Officer Representative (COR).

5.25.6.1.3 Hydroseed and water as directed by guidance above.

5.25.6.2 Location:

5.26 CLIN #3 (Minor Construction – 529): Provide new fire hydrant, water valve, anchorages, and indicator post per drawings, NFPA 1, NFPA 24, UFC 3-230-01, and UFC 3-600-01.

5.26.1 Manufacturer's Qualifications: Firms regularly engaged in manufacture of fire suppression water service system products of types, materials, and sizes required, whose products have been in satisfactory use in similar service for not less than five (5) years.

5.26.2 Installer's Qualifications: Firm with at least three (3) years of successful installation experience on projects with fire suppression water service work similar to that required…