A04_Lab_Sampling_Analysis_SOW_44021840.docx

Statement of Work: Industrial Hygiene Sample Analysis for Respirable Crystalline Silica with Equipment Rental and Sampling Media

1. Purpose The purpose of this Statement of Work (SOW) is to outline the requirements for the analysis of industrial hygiene samples to quantify airborne levels of respirable crystalline silica (RCS) and respirable dust in breathing zone air samples as well as the provision of sampling equipment rental and sampling media. The objective is to assess employee exposure levels to ensure compliance with the Occupational Safety and Health Administration (OSHA) Respirable Crystalline Silica Standard (29 CFR 1910.1053) and to support the implementation of appropriate exposure control measures.

2. Scope The Contractor shall provide laboratory analysis services for air samples collected from Bureau of Land Management (BLM), Black Rock Field Office, NV, to determine concentrations of respirable crystalline silica (quartz) and respirable dust. The Contractor shall also supply sampling equipment rental and parallel particle impactor (PPI) sampling media to facilitate sample collection. The analysis shall adhere to recognized analytical methods, such as NIOSH Method 0600/7500 or OSHA ID-142, and provide accurate and timely results to support workplace safety assessments. The Contractor shall hold the American Industrial Hygiene Association Laboratory Accreditation (AIHA LAP, LLC).

3. Objectives

· Analyze air samples for respirable crystalline silica to determine concentrations in micrograms per cubic meter (µg/m³).

· Analyze air samples for respirable dust to determine concentrations in micrograms per cubic meter (µg/m³) or milligrams per cubic meter (mg/m3).

· Ensure analytical methods comply with OSHA and NIOSH standards.

· Provide detailed reports with results, including quality control data and detection limits.

· Supply and manage rental of sampling equipment.

· Provide parallel particle impactor (PPI) sampling media.

· Analyze samples and deliver sampling results within two weeks of receipt.

4. Tasks and Responsibilities

4.1 Sample Analysis

· Analyze air samples collected on 37-mm PVC filters (5.0 µm pore size) media using X-ray diffraction (XRD) per NIOSH Method 7500 or OSHA ID-142. Also provide gravimetric results using NIOSH Method 0600 for respirable dust.

· Quantify concentrations of RCS (quartz) and respirable dust.

· Ensure a limit of detection (LOD) and limit of quantification (LOQ) sufficient to detect RCS at or below the OSHA Permissible Exposure Limit (PEL) of 50 µg/m³ and Action Level (AL) of 25 µg/m³.

4.2 Sampling Equipment Rental

· Provide rental of sampling equipment, including personal air sampling pumps capable of maintaining a flow rate of 2.0 L/min as per NIOSH 7500 and PPI sampler, suitable for respirable dust collection.

· Ensure all equipment is calibrated, maintained, and compliant with OSHA and NIOSH sampling requirements before delivery.

· Provide user instructions and technical support for proper equipment use.

· Manage equipment delivery to and return from BLM Black Rock Field Office, NV, including logistics and scheduling.

· Maintain records of equipment calibration and maintenance, providing documentation upon request.

4.3 Sampling Media

· Supply 30 PPI samplers with 37-mm PVC filters (5.0 µm pore size).

· Ensure media are pre-weighed and packaged to prevent contamination during transport and storage.

4.4 Quality Control

· Perform quality control procedures for sample analysis, including calibration of analytical equipment, use of certified reference materials, and analysis of blank samples.

· Include quality control data (e.g., calibration curves, blank results, and duplicate analyses) in the final report.

· Verify calibration and functionality of rental sampling equipment prior to delivery.

· Maintain chain-of-custody documentation for all samples and media.

4.5 Reporting

· Provide a detailed analytical report for each sample, including:

· Sample identification number.

· Concentration of respirable crystalline silica (µg/m³).

· Concentration of respirable dust (µg/m3 or mg/m3).

· Analytical method used.

· LOD and LOQ.

· Any deviations from standard procedures or interferences encountered.

· Include documentation of equipment calibration and media specifications in the final report or as a separate deliverable, if requested.

· Submit reports in both electronic (PDF) editable formats 14 business days of sample receipt.

4.6 Sample and Equipment Handling

· Receive and log samples, ensuring proper storage conditions to prevent contamination.

· Return or dispose of samples in accordance with regulatory requirements.

· Coordinate the pickup and return of rental sampling equipment, ensuring timely delivery and retrieval to meet project schedules.

5. Deliverables

· Analytical reports for each batch of samples, including all required data as specified in Section 4.5.

· Rental sampling equipment and PPI samplers delivered to BLM Blac Rock Field Office, NV, as per agreed schedule.

· Chain-of-custody documentation for samples and media.

· Calibration and maintenance records for rental equipment, upon request.

· Certificate of analysis confirming compliance with NIOSH/OSHA methods.

6. Performance Standards

· Analytical methods shall conform to NIOSH Method 7500, OSHA ID-142, or equivalent standards.

· Laboratory must be accredited by the American Industrial Hygiene Association (AIHA) or equivalent for RCS analysis.

· Results must be accurate within ±25% at concentrations near the OSHA PEL (50 µg/m³).

· Sampling equipment must be calibrated to maintain required flow rate of 2.0 LPM and be in good working condition.

· Turnaround time for results shall not exceed 14 business days unless otherwise agreed.

· Equipment delivery and media provision shall align with the project sampling schedule.

7. Client Responsibilities

· Provide air samples collected in accordance with OSHA and NIOSH sampling protocols.

· Submit chain-of-custody forms and sample details (e.g., flow rates, sampling duration, and volume).

· Communicate specific reporting requirements, equipment needs, or additional analyses, if needed.

· Ensure proper use and care of rented sampling equipment and return equipment in good condition.

· Notify Contractor of the required number of samples and sampling schedule to ensure adequate media and equipment availability.

8. Period of Performance The period of performance shall commence upon receipt of samples and continue until delivery of analytical reports, estimated to be 14 business days. Equipment rental provision shall align with the sampling schedule, with sampling equipment arriving Monday, August 25, and returned on Thursday, September 4.

9. Payment Terms Payment shall be based on the number of samples analyzed, equipment rental duration, and sampling media provided, with pricing agreed upon in the contract. Invoices shall be submitted upon delivery of analytical reports and equipment return and are due within 30 days of receipt.

10. Acceptance Criteria

· Reports are complete, accurate, and delivered within the specified timeframe.

· Analytical results meet the required LOD/LOQ and comply with OSHA/NIOSH standards.

· Sampling equipment is functional, calibrated, and delivered on time.

· Sampling media meet specifications and are provided in sufficient quantities.

· All quality control data are included and meet accreditation requirements.

11. Point of Contact

· Client: [Client Name, Title, Contact Information]

· Contractor: [Contractor Name, Title, Contact Information]

12. Confidentiality All data, reports, and findings shall be treated as confidential and shared only with authorized personnel as designated by BLM Black Rock Field Office, NV, or the BLM HQ-Industrial Hygienist.

13. Amendments Any changes to this SOW shall be documented in writing and agreed upon by both parties.