Environmental

Environmental services provided by MHR Engineering encompass all three major areas: compliance, restoration and preservation. The core group supporting the company environmental program has extensive experience supporting all these three areas.  This group includes experts who have provided technical and management support to various DoD entities including the U.S. Air Force/AFCEE, Navy/NAVFAC and Air National Guard under a number of contracts including GEITA, SETA, Navy CLEAN, EMAC and ATRDEAS.  Services provided include total support for planning and implementation of all phases of CERCLA/RCRA (PA/SI, RI/FS, PP/ROD, RD/DBR, RA, LTM, 5-Year review and SC) towards clean-up, restoration and closing of environmentally impacted sites in military bases nationwide.   

Several members of the current MHR environmental group were part of the AFCEE (now AFCEC) team assigned to Program Requirements Development (PRD) initiative of the organization.  The team identified the AF and Air National Guard (ANG) installations nationwide and overseas requiring characterization, clean-up, restoration and closing. The program involved developing project cost estimating assumptions documents (PCEADs), cost estimating RACER®, preparing and reviewing financial spreadsheets, and performing cost variance quality assurance for IRP, CRP and MMRP sites. Services provided also included designing engineering systems for environmental restorations projects as well as creating and over viewing Federal Regulatory Documents in support of AFCEE’s Mission.
 

MAJOR AREAS:

• Environmental Site Assessment (ESA) (Phase I & II)
• Comprehensive Site Evaluation (CSE)
• Health & Safety Assessment (HSA)
• Human Health Risk Assessment (HHRA)
• NPDES Permits
• Health and Safety Plan
• Storm Water Pollution Prevention Plan (SWPPP)
• Soil Gas Survey
• Vapor Intrusion Pathway (VIP) Investigation and Remediation
• NEPA Environmental Record Review
• NEPA Environmental Impact Study (EIS)
• Air Dispersion Modeling
• Contaminant Fate and Transport Modeling
• Groundwater Modeling
• Soil and Groundwater Sampling and Analysis
• Environmental Remediation/Restoration – Treatment of Contaminated Soil and Groundwater
• CERCLA Remedial Investigation
• Asbestos Survey and Consulting
• Lead-Based Paint Survey and Removal
• Feasibility Study
• Environmental Risk Assessment
• Baseline Ecological Risk Assessment
• Pilot and Bench-Scale Treatability Study
• Storm Water Pollution Prevention Plan (SWPPP)
• Edwards Aquifer Water Pollution Abatement Plan (WPAP)
• Edwards Aquifer Contributing Zone Plan (CZP)
• Edwards Aquifer Sewer Collection System Plan (SCS)
• Edwards Aquifer Protection Plan
• US Army Corps of Engineers Permitting & Mitigation Monitoring
• Tree Survey & Preservation Plans
• Jurisdictional Water of the US Delineations per USACE Protocol
  

SERVICE AREAS

I. SITE CHARACTERIZATION

•  Environmental Site Assessments (ESAs: Phase I, II and III)
• Special Resource Study
• Wetland Delineation
• NEPA Environmental Impact Study

II. REMEDIAL INVESTIGATION/FEASIBILITY STUDIES

• Work Plan
• Field Sampling and Analysis Plan (FSAP)
• Data Management Plan
• Community Relations Plan
• Health and Safety Plan
• Preliminary Assessment (PA)
• Site Investigation (SI)
• Hazard Ranking System (HRS)
• Data Validation
• Primary Responsible Party (PRP) Search
• RCRA Facility Investigation (RFI)
• CERCLA Remedial Investigation (Phases I & II)
• Risk Assessment
• Treatability Study
• Screening of Alternative Technologies

 III.  GROUND WATER HYDROLOGY

• Ground Water Exploration
• Ground Water Sampling and Testing
• Aquifer Characterization
• Installation of Well Monitors
• Water Table and Potentiometric Surface Mapping
• Soil and Ground Water Sampling
• Well Hydraulics
• Local and Regional Ground Water Flow Modeling
• Contaminant Transport Modeling
• Remediation Strategy Formulation

IV. SURFACE WATER HYDROLOGY    

• Site Classification
• Stream Gauging
• Water Quality Sampling and Evaluation
• Water Quality Modeling and Control
• Storm Water Modeling
• Surface Water – Ground Water Interaction
• NPDES Permits
• Facility Remediation Engineering and Implementation 

V. LANDFILL SERVICES 

• Permit Assistance and Reporting
• Site Selection & Characterization
• Waste Management and Reduction Studies
• Soil and Ground Water Investigation
• Closure and Post-Closure Plans 

VI. GEOLOGICAL / GEOPHYSICAL INVESTIGATION 

• Geostatistics
• Geologic Mapping (structural, isopach, lithologic, etc.)
• Soil Mechanics
• Foundation Engineering
• Seismic Survey
• Interactive Seismic Data Processing
• 2- and 3- Dimensional Mapping
• Ground Penetrating Radar (GPR) Survey
• Risk Assessment
• Notification and Permitting
• Leak/Spill Response and Cleanup

VII.  UNDERGROUND STORAGE TANK (UST) SERVICES

• Installation
• Upgrades
• Tightness Test
• Tank Removal and Disposal
• Soil and Ground Water Investigation
• Remediation and Site Restoration

 VIII.  ENGINEERING AND REMEDIAL DESIGNS

• Sanitary Landfill
• Sludge Treatment and Disposal Facilities
• Wastewater Collection and Treatment Processes
• Waste Storage Facility
• Product Recovery Systems
• Stack Stripping
• Abatement
  

IX.  AIR POLLUTION ENGINEERING

• Indoor Air Pollution Evaluation and Control
• Emission Inventory
• Dispersion Modeling
• Title V Permits