Attachment 1 - Performance Work Statement Point Marion Methane Assessment and Mitigation.pdf

PERFORMANCE WORK STATEMENT

POINT MARION LOCK AND DAM

METHANE INTRUSION ASSESSMENT AND MITIGATION PLAN

1. GENERAL REQUIREMENTS

1.1 GENERAL

The contractor shall provide all personnel, equipment, supplies, facilities, transportation, tools, materials, supervision, and other items and non-personal services necessary to perform Methane Intrusion Assessment and Mitigation Plan for Point Marion Lock and Dam as defined in these Specifications except for those items specified as government furnished property and services.

1.2 BACKGROUND

Columbia Gas (local natural gas provider) performed a routine periodic leak detection inspection of their main lines and secondary lines leading to Point Marion on 16 May 2018. All readings came back negative for methane gas for all Columbia Gas lines.

However, Columbia Gas did detect methane gas between 2.5% - 22% methane by volume along a portion of the Operations Building first floor foundation (southeast side) even though no gas lines were proximate to that area. Per standard procedure, the natural gas was shut off to the building and Columbia Gas drilled six bore holes approximately 8-10 feet from the foundation and ventilated these bore holes in an attempt to reduce methane gas levels at the foundation. Grab samples of both the unknown gas as well as the natural gas were collected and sent to a laboratory for analysis. When laboratory results determined that the natural gas was not the source of high methane foundational readings, Columbia gas removed their ventilation and turned the project over to the US Army Corps of Engineers.

In 2018, an environmental firm conducted an extensive survey including a month long continuous methane/hydrogen sulfide monitoring, intrusion pathway identification, potential methane source identification, and pilot mitigation testing as a means to develop a Methane Intrusion Mitigation Plan. Continuous monitoring was conducted both inside the Operations building (first and second floors) and outside at the previously drilled borehole where methane levels were recorded the highest. Methane as well as hydrogen sulfide was detected at various locations with the concentrations fluctuating over time.

The highest concentrations of methane and hydrogen sulfide recorded at the previously drilled borehole were 445,000 ppm and 318.3 ppm respectively. The highest concentrations of methane and hydrogen sulfide recorded in the Operations building were 3,900 ppm and 0.40 ppm respectively. Results of continual methane and hydrogen sulfide monitoring as well as the Site Characterization Report and Methane Intrusion Mitigation Plan are provided in the attached “Survey Results”.

In 2019, a construction contract was awarded to an environmental firm for installation of an active sub-slab ventilation depressurization system. Also installed were four (4) continuous area methane hydrogen sulfide monitors located in the Leaders Office, Lockmasters Office, Lunchroom, and Electrical Room. Drawings of the current Methane Intrusion Mitigation System are provided in the attached “MIM Drawings.”

1.3 OBJECTIVES

The purpose of this contract is to have the Contractor perform the following tasks:

• Perform continuous methane monitoring.

• Propose a methane mitigation plan and continual monitory strategy.

1.4 QUALIFICATION

The contractor shall be a firm regularly engaged in the business of performing work of like or similar nature to that required by these specifications. The contractor shall be experienced in the installation, programming, calibration, maintenance and reading of combustible gas indicators and collection and reporting of data collected; interpretation of data; performing site characterization studies; designing, developing, implementing and testing methane intrusion mitigation systems; reporting and developing a Methane Intrusion Mitigation Plan and Continual Monitoring Strategy.

1.5 SAFETY

In addition to the requirements included in the provisions of this contract, all work shall comply with the most recent edition of the USACE Engineering Manual (EM) 385-1-1, Safety and Occupational Health (SOH) Requirements, and all applicable federal, state, and local laws, ordinances, criteria, rules, and regulations. Where the requirements herein, applicable laws, criteria, ordinances, regulations, and referenced documents vary, the most stringent requirements govern. If there are any standards that require interpretation, submit matters to the appropriate administrative agency for resolution before the commencement of work. Interpretations, variances, and waivers to the EM 385-1-1 can only be authorized by the Chief of Safety and Occupational Health, HQUSACE.

The latest version of the EM 385-1-1 is available online at:

https://www.publications.usace.army.mil/USACE-Publications/Engineer-Manuals/

If the Contractor fails or refuses to promptly comply with the safety requirements as specified herein, the KO may issue a stop work order for all or part of the work until satisfactory corrective action has been taken. No part of the time lost due to any such work stoppage shall be made subject to any claims for extension of time or for excess costs or damages sustained by the Contractor. Also, the Contractor will not be paid for work not performed as a result of the stop order.

The Contractor shall develop and submit an Accident Prevention Plan (APP) according to EM 385-1-1, paragraph 2-7.b. The Contractor shall complete and submit ENG Form 6293 to the KO/COR for review and acceptance. Work shall not begin until the APP has been accepted by the KO/COR.

That Contractor shall develop and submit risk assessments for each type of activity they will perform as part of the Contractor according to EM 385-1-1, paragraph 2-6,. The Contractor may use ENG Form 6206 to assist with completion of their risk assessments.

Based on the scope of work of this contract, a Leve 3 Site Safety and Health Officer (SSHO) shall be designated by the Contractor. The SSHO shall meet the qualification/training requirements according to EM 385-1-1, paragraph 2-3.b. The SSHO must be at the site of work whenever work is performed and located so they have full mobility and reasonable access to all major work activities occurring during the shift.

1.6 SUBMITTALS

As soon as practicable after award, the Contractor shall submit, as a minimum, the following to the Contracting Officer’s Representative (COR) for approval prior to implementation. All submittals shall be in accordance with the requirements of paragraph 2.1 Scope of Service for each item.

Continuous Methane Monitoring Plan. Within seven (7) calendar days after contract award, the Contractor shall submit a Continuous Methane Monitoring Plan to include proposed equipment number and locations of monitoring devices.

Methane Intrusion Mitigation Plan and Continual Monitory Strategy. Within seven (7) calendar days of the ending of the continuous monitoring the Contractor shall submit a Methane Intrusion Mitigation Plan and Continual Monitoring Strategy. The plan shall include specific recommendations for design, installation, operation and maintenance of a methane intrusion mitigation system as well as recommendations for continual methane monitoring as a means to ensure effectiveness of the mitigation system.

At the completion of required sampling, the Contractor shall provide weekly reports of all data collected.

1.7 COORDINATION MEETING AND POINTS OF CONTACT

Prior to commencement of any work being performed on site, the contractor shall participate in a meeting with the Point Marion Lockmaster and District Industrial Hygienist.

Derek Callihan, Technical Point of Contact, District Industrial Hygienist, Telephone

(412) 592-5247.

Mr. Mike Clark, Lockmaster, Point Marion Lock and Dam, Telephone 724-725-5289

1.8 PERIOD OF PERFORMANCE

The Government requires all monitoring, characterizations, and testing to be completed within 60 calendar days after written notice of contract award.

1.9 PROTECTION OF GOVERNMENT PROPERTY

The contractor shall protect all government property during the performance of this contract. All damage to existing government property as a result of the Contractor’s work shall be repaired or replaced to the satisfaction of the COR. Work areas shall be cleaned by the contractor after the work is complete.

1.10 PROTECTION OF PERSONNEL

The Contractor shall ensure that adequate measures are in place to protect workers, facility operation personnel and the public from injury due to the operations being performed. All protective measures shall be in accordance with EM 385-1-1.

1.11 SECURITY REQUIREMENTS

1.11.a. General Security Requirements and Guidance

General Security Requirements and Guidance: The security requirements described below apply to all contract personnel (including employees of the prime Contractor (“Contractor”) and all subcontractor employees) supporting the performance requirements of this contract. The Contractor is responsible for compliance with these security requirements. Questions regarding security matters shall be addressed to the designated Government representative (e.g., Contracting Officer Representative (COR), Requiring Activity (RA) representative, or Contracting Officer (if a COR or other RA representative is not appointed)). Contract personnel are critical to the overall security and safety of US Army Corps of Engineers (USACE) installations, facilities and activities, and security awareness training contributes to those efforts. The Department of Defense (DoD) and Army security training requirements specified below, if applicable, are performance requirements; all applicable contract personnel shall complete initial training within 30 days of contract award or the date new contract personnel begin performance on the contract. Within five business days from the completion of training, the Contractor shall provide written documentation (e.g., email or memorandum) to the Government representative. The documentation shall include the names of contract personnel trained and which training they completed; the Contractor shall maintain training records as part of their contract files and be prepared to provide copies of training certificates to the Government representative. Contractor personnel and vehicles are subject to search when entering federal installations. Additionally, all contract personnel shall comply with Force Protection Condition (FPCON) measures, Random

Antiterrorism Measures (commonly referred to as “RAMs”), and Health Protection Condition (HPCON) measures. The Contractor is responsible for meeting performance requirements during elevated FPCON and/or HPCON levels in accordance with applicable RA plans and procedures --this includes identifying mission essential and non-mission essential personnel. In addition to the changes otherwise authorized by the changes clause of this contract, should the FPCON or HPCON levels at any individual facility or installation change, the Government may implement security changes that affect contract personnel. The Contractor shall ensure all contract personnel are aware of their security responsibilities, including any site-specific requirements identified in local policies or procedures.

The contractor must submit the full name, Social Security Number, and Date of Birth for all associated contractor or subcontractor employees to the USACE Security Office, Ivan Russell , 412-395-7591, ivan.r.russell@usace.army.mil, and Joe Bali, 412-395-7162, joseph.m.bali@usace.army.mil. LRP Security Information Sheet, (Appendix III – LRP Security Information Sheet) is to be completed and returned to Mr. Russell. The contract number and title of the project including the location is to be identified on the Sheet. To protect employee PII, the submission of the completed form through a secure fax is preferred; however, a secured email is acceptable. If e-mailing required information, e-mail must be encrypted to protect Personally Identifiable Information (PII). The District retains the right to deny any contractor and subcontractor employee from working on one of its contracts based on final background investigation results.

1.11.b. Physical Security and Access Control Requirements

Physical Security and Access Control Requirements: All contract personnel requiring physical access to a federal installation or facility shall comply with the access control procedures of that location. Contract personnel requiring unescorted access to meet contract performance requirements on a DoD installation in the US shall be vetted by the installation/facility Provost Marshal/Directorate of Emergency Services/Security Office using the National Crime Information Center-Interstate Identification Index (commonly referred to as “NCIC-III”) and Terrorist Screening Database (commonly referred to as “TSDB”). Contract personnel shall comply with all personal identity verification requirements specified in installation/facility policies and procedures. Contract personnel who do not meet requirements for unescorted access to USACE facilities shall coordinate escorted access with the Government representative, as needed. Contract personnel who receive keys, access cards, or lock combinations that provide access to government-owned property shall comply with key and lock control procedures of the RA.

1.11.c. Pre-Screen Candidates Using E-Verify Program

Pre-screen candidates using E-Verify Program: Contractors shall comply with the requirements set forth in FAR clause 52.222-54 Employment Eligibility Verification and FAR Subpart 22.18 in using the E-Verify Program at (https://www.e-verify.gov/) (website subject to change) to meet the contract employment eligibility requirements.

Contractors are encouraged to cooperate with Federal and State agencies responsible for enforcing labor requirements to include eligibility for employment under United States immigration laws in accordance with FAR 22.102-1(i). An initial list of verified/ eligible candidates shall be provided to the COR no later than three business days after the initial contract award. When contracts are with individuals, the individuals will be required to complete a Form I-9, Employment Eligibility Verification, and submit to the Contracting Officer to become part of the Official Contract File.

1.11.d. Identification Of Employees

The Contractor shall be responsible for furnishing an identification badge/card to each employee prior to the employee working on-site and for requiring each employee engaged on the work to display identification. Identification shall consist of name tags with the name of the Contractor and the employee's name. As a minimum, a valid state driver's license or other government-issued photo identification card is required for positive identification.

2. EXECUTION

2.1. Scope Of Services

The Contractor shall provide continuous methane area monitoring in and around the Operations building at Point Marion Lock in Dam for a period of four weeks. The Contractor shall provide weekly reports and a Methane Intrusion Mitigation Plan and Continual Monitory Strategy in accordance with the requirements set forth in these Specifications.

2.1.1 Perform Continuous Methane Monitoring

a) The Contractor shall perform continuous methane monitoring for a period of four weeks as a means to determine methane intrusion variability, to identify methane intrusion pathways, and to ensure occupational health hazards and explosion hazards are identified.

b) The Contractor shall place a sufficient number of dual sensor Combustible Gas

Indicators (CGIs) both inside and outside the Operations building. The number of monitors shall be enough to both record methane intrusion variability and help with identification of intrusion pathways.

Monitors shall include the following locations:

1 background monitor (outdoors) 1 monitor by the bore holes that are in the explosive range (outdoors) 1 monitor in the lock masters office (second floor) 1 monitor in the leaders office (first floor)

A minimum of 3 additional monitors at locations chosen by the Contractor based on previous sampling information and the Contractor’s sampling plan

c) The Contractor shall ensure the CGIs are equipped with data logging capabilities and are designed for continuous monitoring.

d) The Contractor shall program the instruments to measure and record data at periodic intervals of no less than once every five minutes. The CGIs shall be programmed to record percent methane per volume of air (or % LEL), methane in parts per million, and percent oxygen per volume of air.

e) The Contractor shall calibrate the CGIs in accordance with manufacturer’s requirements and ensure the accuracy of the CGI is within set standards.

f) The Contractor shall prepare weekly reports to present monitoring procedures, results, conclusions and recommendations. Each report shall include graphs presenting percent LEL, ppm, and oxygen concentration versus time for each CGI instrument. The reports shall be submitted no later than three days after the conclusion of a seven day sampling event.

g) The Contractor shall ensure an audible alarm sounds if measurements of ten percent (or greater) LEL methane or oxygen deficiency is detected.

h) The Contractor shall immediately notify the Point Marion Lock Master, and the

District Industrial Hygienist (IH) if an imminent threat to health or safety is identified.

2.1.2 Propose a Methane Intrusion Mitigation Plan and Continual Monitory Strategy

a) The Contractor shall prepare a Methane Intrusion Mitigation Plan that will include recommendations for methane intrusion mitigation to ensure methane levels within and at the foundational level of the Operations building are <10% of the LEL (for methane). The Contractor may recommend additional monitoring devices as part of this mitigation plan.