PWS FFAN242229 Bldg 229.pdf

Ver. October 2025

CUI

PERFORMANCE WORK STATEMENT (PWS)

FOR

Demo Test Cell Storage and Concrete Bldg. 229

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

CUI

CUI

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

CUI

CUI

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

CUI

CUI

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

CUI

CUI

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.

CUI

CUI

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:

AEI Army Enterprise Infostructure AR Army Regulation AT/OPSEC Antiterrorism/Operational Security BI Background Investigation CM Contract Manager COR Contracting Officer Representative DA Department of the Army DD254 Department of Defense Contract Security Classification Specification DFARS Defense Federal Acquisition Regulation Supplement DoD Department of Defense DSCA Defense Counterintelligence and Security Agency FAR Federal Acquisition Regulation GFP/M/E/S Government Furnished Property/Material/Equipment/Services HQDA Headquarters, Department of the Army HSPD Homeland Security Presidential Directive IA Information Assurance IS Information System(s) KO Contracting Officer NGB National Guard Bureau OCI Organizational Conflict of Interest PII Personally Identifiable Information PIPO Phase In/Phase Out POC Point of Contact PRS Performance Requirements Summary

CUI

CUI

PWS Performance Work Statement QA Quality Assurance QASP Quality Assurance Surveillance Plan QC Quality Control QCP Quality Control Program SCR Service Contract Reporting SSN Social Security Number TE Technical Exhibit USD(I) Under Secretary of Defense for Intelligence

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 provided below as apart of CLIN #3 Option #2.

3.3 Equipment: None

3.4 Services: None

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

4.0 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.

5.0 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 Contracting Officer Representative (COR) on a quarterly basis. The contractor shall also provide costs or proceeds associated with the disposal or diversion of wastes generated from projects.

CUI

CUI

5.8 All earth and dirt material may NOT be removed from the installation. The 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 contractors final closeout punch list.

5.18 Provide final warranty information and closeout documents.

5.19 The Contractor shall provide a dedicated Superintendent with a minimum of ten (10) years of relevant construction experience. This Superintendent shall be physically present on-site during all periods of work, including activities performed by subcontractors and any self-performed work by the prime contractor. The Superintendent shall be responsible for overseeing daily operations, ensuring compliance with contract requirements, coordinating trades, and serving as the primary point of contact for all site-related matters.

5.20 CLIN #1: (DEMO – 536)

5.20.1 Provide testing for the following:

CUI

CUI

5.20.1.1 Lead paint testing for building 229 prior to demolition. Provide report to the government.

5.20.1.2 Asbestos Survey and Notification Requirements

5.20.1.2.1 The Contractor shall perform an asbestos survey of all building materials and site features that will be disturbed during the removal and demolition of the building 229 and all additional asphalt, concrete, utilities, including but not limited to piping, appurtenances, access structures, and any adjacent building materials.

5.20.1.2.2 The Contractor shall collect representative samples and have them analyzed by an accredited laboratory in accordance with 40 CFR 763 and industry standards.

Provide the government with the formal and final survey report/results.

5.20.1.2.3 If regulated asbestos-containing material (RACM) is identified, the Contractor shall handle, remove, and dispose of such materials in full compliance with federal, state, and local regulations.

5.20.1.2.4 The Contractor shall submit a 10‑working‑day demolition/renovation notification to the Iowa Department of Natural Resources (DNR) in accordance with the Iowa Asbestos NESHAP program prior to any demolition or disturbance activities, regardless of whether asbestos is present.

https://dial.iowa.gov/licenses/building/asbestos/asbestos-demolition-renovation-notification

5.20.1.2.5 The Contractor shall provide the Government with written proof of submission to the Iowa DNR, which shall include:

5.20.1.2.5.1 A copy of the completed Iowa DNR notification form,

5.20.1.2.5.2 Confirmation of receipt from the Iowa DNR (email confirmation, timestamped submission receipt, or equivalent).

5.20.1.2.6 No demolition activities may begin until the required DNR notification period has elapsed.

5.20.2 Monitoring Well MW-12S

5.20.2.1 Installation and Existing Surface Completion

5.20.2.1.1 Monitoring well MW-12S was installed in October 2025 as part of environmental investigation activities using sonic drilling technology at the Des Moines ANGB, Iowa.

The well is constructed of a Sch40, 2-inch, polyvinyl chloride (PVC) casing that extends to a depth of 21 feet (ft) below ground surface. The well was installed in a 6-inch borehole, the annulus of which was filled with bentonite in the upper 9 feet of the borehole extending to the ground surface. During future construction activities, it is imperative to protect the bentonite seal and the vertical alignment of the PVC casing to ensure that equipment can move freely up and down inside the casing.

5.20.2.1.2 The existing protective surface completion is shown below. An Alucast brand 8-inch x 12-inch aluminum manhole cover (Photo 1) was installed within an approximate 2 ft x 2 ft x 4-inch concrete pad (Photo 2).

Photo 1

Photo 2

5.20.2.1.3 Inside the manhole is a 2-inch PVC riser pipe (Photo 3) with a J-plug at the top (to prevent anything from entering the inside of the PVC riser and well casing). At the top of the bentonite seal within the annulus of the well, some pea gravel was likely placed at the top of the bentonite seal inside the manhole casing (Photos 3 and 4;

note that the photo does not include the orange j-plug that was inserted and covers the opening at the top of the pipe; however, you can see it resting to the right on Photo 4).

Photo 3

Photo 4

5.20.2.2 To Protect the Monitoring Well during Construction / Removal of existing surface completion:

5.20.2.2.1 The concrete pad can be broken up and removed, along with the protective monitoring well manhole set in the to-be-removed concrete pad. Once grading activities are completed, a new manhole and concrete pad should be installed. When removing the existing concrete pad and manhole, use care to protect the PVC well riser and casing integrity being careful not to break the PVC riser/well casing. The J-plug (orange cap) should remain on the well throughout this process, and should be taped on the outside for security during removal of the existing surface completion.

CUI

CUI

Note: Electrical tape is what they use when securing items on the outside of the well casing, as it doesn’t leave residue when removed.

5.20.2.2.2 Extend the Well Casing:

5.20.2.2.2.1 The well casing should be extended prior to grading activities. To extend the well casing, remove the J-plug and add a deep coupler to the top of the casing. An additional 2-inch PVC pipe (Schedule 40) can be added to the coupler to extend the casing vertically. The length of this extension does not matter at this point, as it will be cut down to the appropriate height once final grading is complete. The J-plug should be re-inserted into the top of the newly extended casing once complete, again to ensure nothing can enter the monitoring well.

5.20.2.2.2.2 Once the coupler and extended casing are attached to the well head, an extra layer of security can be provided by applying electrical tape on the OUTSIDE to secure the coupler/casing in place.

5.20.2.2.2.3 Three (3) Concrete barriers (ex: jersey barriers provided by the government) should placed in a triangular formation around the well to protect this area during grading activities.

5.20.2.2.3 Final Grading and Well Completion:

5.20.2.2.3.1 Once grading activities near the protected well are complete, the concrete barriers can be removed and final grading/finishing can be completed

5.20.2.2.3.2 Prior to bringing dirt in the immediate area of the well up to grade, a new 6-inch surface casing should be installed around the well to extend the borehole. Place the 6-inch casing (6-inch PVC or similar) around the well, working to center the 2-inch PVC riser within this 6-inch casing to the extent practicable. The height of this casing can be cut near final grade, as the casing will only be used to extend the grout inside the borehole and will be removed prior to final grading.

5.20.2.2.3.3 Place bentonite (chips or plugs) inside the borehole (within the annulus) to surround the monitoring well casing. The height of the hydrated chips should not reach more than ~ 6 inches below the top of the final height of the well casing.

The chips should be hydrated for a minimum of 30 minutes (in 1-foot lifts) and allowed to sit overnight prior to removing the 6-inch casing.

5.20.2.2.3.4 Once the bentonite has sufficiently hardened, remove the 6-inch casing and complete final grading in the area. At this time, a new 8-inch monitoring well manhole can be placed and set in an approximately 2 ft x 2ft x 4-inch concrete pad as the final well completion. To facilitate ease of mowing, the top of the manhole/pad should be at sufficient height that mowers will be able to pass over the top of the pad without damaging equipment.

5.20.2.2.3.5 Once the concrete pad has set, the wooden forms can be removed.

5.20.2.2.4 Surveying:

5.20.2.2.4.1 The monitoring well should be re-surveyed when all construction activities are complete, and the new surface completion has been set. The surveyor should be licensed in the State of Iowa. Elevations to be surveyed:

5.20.2.2.4.1.1 Top of casing – Remove the J-plug and collect an elevation measurement on the north side of the casing. A black Sharpie should be used to mark this location on

CUI

CUI

the top of the casing, as this will serve as a reference point for future environmental investigation activities.

5.20.2.2.4.1.2 Ground surface – Collect an elevation reading at the nearby ground surface (off of the cemented surface completion).

5.20.2.2.4.2 For horizontal position (Easting and Northing) use the center of the top of the monitoring well manhole cover.

5.20.3 Demo Building 229 to include all foundations.

5.20.3.1 See drawing D-1.

5.20.4 Demo all concrete and asphalt roads/pads.

5.20.4.1 See drawings D-1 and D-2.

5.20.5 Demo all test cell footings and foundations.

5.20.5.1 See drawings D-1 and D-2.

5.20.5.2 Additional information can be found on R-ST2, R-S1, R-S2, R-S3, and R-S4.

5.20.6 Demo all trench foundations and retaining walls.

5.20.6.1 See drawings D-1 and D-2.

5.20.6.2 Additional information can be found on R-ST2, R-S1, R-S2, R-S3, and R-S4.

5.20.7 Demo blast walls.

5.20.7.1 See drawings D-1, D-2, and R-S4.

5.20.8 Demo vehicle barrier.

5.20.8.1 See drawings D-1 and D-2.

5.20.9 Demo metal retaining wall.

5.20.9.1 See drawings D-1 and D-2.

5.20.10 Demo storm sewer lines and structures.

5.20.10.1 See drawing U-1.

5.20.11 Demo electric line, conduit, and electrical gear.

5.20.11.1 See drawing U-1.

5.20.11.2 Ensure abandoned underground electrical chase is capped/plugged prior to abandoning.

5.20.12 Demo sanitary sewer lines.

5.20.12.1 See drawings U-1.

5.21 CLIN #2 (Maintenance - 521): Provide fill dirt from off-base location and repair grade to elevations provided by CS-1 drawing.

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

5.21.1.1 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).

CUI

CUI

5.21.1.2 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.

5.21.1.3 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.

5.21.1.3.1 Screened loam or sandy loam, free of debris, contaminants, and excessive clay.

5.21.1.3.2 pH between 6.0 and 7.5.

5.21.1.3.3 Organic matter content: 2–5% by weight.

5.21.1.3.4 Must meet USDA NRCS soil texture standards.

5.21.1.4 Improved Topsoil:

5.21.1.4.1 Include 50-60% Topsoil

5.21.1.4.2 Include 20-30% Compost

5.21.1.4.2.1 STA-certified (Seal of Testing Assurance) compost from yard waste, manure, or food waste.

5.21.1.4.2.2 Stable, mature, and free of weed seeds, pathogens, or heavy metals.

5.21.1.4.2.3 Moisture content: 30–55%.

5.21.1.4.2.4 Carbon-to-nitrogen ratio: 10:1 to 20:1.

5.21.1.4.3 Include 10-20% Sand

5.21.1.4.3.1 Clean, washed, coarse sand (ASTM C33 or equivalent).

5.21.1.4.3.2 Free of silt, clay, or organic matter.

5.21.1.4.3.3 Particle size: 0.5–2.0 mm.

5.21.1.5 Erosion Protection

5.21.1.5.1 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.

5.21.1.5.2 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.

5.21.1.5.3 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.

CUI

CUI

5.21.1.6 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.

5.21.1.7 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.

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

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

5.21.1.8.2 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).

5.21.1.8.3 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.

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

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

5.21.1.8.6 Construct fills in horizontal layers not more than 12 inches in loose thickness.

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

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

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

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

5.21.2 Soil Compaction

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

5.21.2.1.1 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.

5.21.2.1.2 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.

5.21.2.1.3 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.

CUI

CUI

5.21.2.2 Compact all materials placed in fill.

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

5.21.2.3 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.

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

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

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

5.21.2.7 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.

5.21.2.7.1 Cut and stir full depth of layer.

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

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

5.21.2.8 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.

5.21.2.9 Compact fill slopes progressively until slopes are stable.

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

5.21.2.11 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.

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

5.21.2.13 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.

5.21.3 Subgrade Preparation

5.21.3.1 Compact upper 12 inches with moisture and density control (85% Standard Proctor

Compaction Density). Moisture content to be 0% to 4% points of optimum.

5.21.3.2 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).

5.21.3.3 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).

CUI

CUI

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

5.21.3.5 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.

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

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

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

5.21.3.9 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.

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

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

5.21.4 Finish Grading

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

5.21.4.2 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.

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

5.21.4.4 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.

5.21.4.5 Place topsoil as required for finish grading over all disturbed areas to a minimum 6-inch depth.

5.21.4.6 Provide improved topsoil on all disturbed areas to a minimum 6-inch depth.

5.21.4.7 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.

5.21.4.8 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).

5.21.4.9 Schedule and coordinate topsoil respreading with hydroseeding operations.

5.21.5 Hydraulic Seeding.

5.21.5.1 Seed:

CUI

CUI

5.21.5.1.1 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.

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

5.21.5.1.1.2 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).

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

5.21.5.1.3 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.

5.21.5.1.3.1 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.

5.21.5.1.4 Requirements on Containers:

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

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

5.21.5.1.4.3 Tackifier: Provide tackifier packaged in new labeled containers.

5.21.5.1.4.4 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.

5.21.5.1.4.5 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.

5.21.5.2 Seed Mixtures and Seeding Dates

CUI

CUI

5.21.5.2.1 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.

5.21.5.3 Fertilizer:

5.21.5.3.1 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:

5.21.5.3.2 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.

5.21.5.3.2.1 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.

5.21.5.3.3 Type: Use fertilizer that can be uniformly distributed by the application equipment.

Furnish fertilizer either as separate ingredients or in chemically combined form.

5.21.5.4 Sticking Agent:

5.21.5.4.1 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.

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

5.21.5.5 Inoculant for Legumes:

5.21.5.5.1 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.

CUI

CUI

5.21.5.6 Water:

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

5.21.5.7 Mulch:

5.21.5.7.1 Wood Cellulose:

5.21.5.7.1.1 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).

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

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

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

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

5.21.5.7.1.6 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.

5.21.5.7.2 Bonded Fiber Matrix (BFM):

5.21.5.7.2.1 Manufactured to be applied hydraulically.

5.21.5.7.2.2 Dyed to facilitate visual metering.

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

5.21.5.7.2.4 Meet the following requirements:

5.21.5.7.2.4.1 Contain non-toxic tackifiers that upon drying become insoluble and non-dispersible to eliminate direct raindrop impact…