Attachment 2: A02. Purchase Description Characteristics for Env Eng Services

Purchase Description: Environmental Compliance and Restoration Support Services for Pine Bluff Arsenal
Background
Pine Bluff Arsenal (PBA) supports Department of Defense missions, including ammunition manufacture and demilitarization, while maintaining compliance with environmental regulations such as the Clean Air Act (CAA), Clean Water Act (CWA), Resource Conservation and Recovery Act (RCRA), Comprehensive Environmental Restoration and Compensation Liability Act (CERCLA), Spill Prevention, Control, and Countermeasure (SPCC) regulations, and Defense Environmental Restoration Program (DERP) requirements. PBA seeks contract services to augment ongoing laboratory evaluations and ensure continued compliance as the current contract expires December 2026. Scope of Work
The contractor shall provide comprehensive environmental compliance and restoration support services, including:
Task 1: Ecological Surveys
• Conduct annual ecological surveys as required by DEQ, RCRA, and NPDES permits, assessing water, sediment, and biological status of surface waters at specified SWMU sites.
• Monitor effectiveness of pollution abatement and regulatory compliance measures. • Prepare annual and 5-year ecological monitoring reports, including sampling, analysis, and comparison to background and screening levels. Task 2: Toxicity Testing Compliance
• Perform quarterly acute and chronic toxicity testing at four NPDES outfalls, in accordance with permit AR0001678.
• Provide additional support for permit renewal and regulatory response. • Optionally conduct toxicity identification/reduction evaluations as needed. Task 3: Groundwater Hydrogeological Assessments
• Conduct annual statistical assessments of groundwater data from RCRA permit and corrective action sites, including 111 monitoring wells. • Prepare detection monitoring reports for regulated units and corrective action sites, utilizing statistical methods (Shewhart-CUSUM, Mann-Kendall, etc.). • Provide annual and 5-year groundwater assessment reports. Task 4: Geographic Information System (GIS) Support
• Maintain and update PBA’s GIS database, upload analytical data, update maps, and provide staff training.
Task 5: Stormwater Compliance
• Sample and test stormwater at designated outfalls per NPDES permit and SWPPP. • Submit laboratory analyses and corrective action plans as needed. • Prepare Storm Water Annual Reports and provide permit renewal/modification support.
• Provide annual training and construction stormwater support as required.