H₂A Welcomes Dr. Rangaramanujam Muthu to Our Team

H2A Environmental, Ltd. is very pleased to welcome Dr. Rangaramanujam Muthu to our team of non-aqueous phase liquid (NAPL) experts.  Dr. Muthu is a co-author / co-developer of the forthcoming American Petroleum Institute software and guidance for the calculation of LNAPL transmissivity from LNAPL baildown tests for unconfined, confined, or perched LNAPL.  In addition, Dr. [...]

Read More About - H₂A Welcomes Dr. Rangaramanujam Muthu to Our Team »

H2A recently made note of a new visitor frequenting our off-site system maintenance facility.  A common gray fox has taken up residence and is making itself at home in the tall foliage behind the building.
Here are three things you may not know about foxes – they are omnivores, eating both meats and vegetables; they can [...]

Read More About - Texas Wildlife in Our Own Backyard… Literally »

Texas is currently under drought conditions that may be more substantial than many people realize.  The Texas drought map (republished from the noted source) dated April 5, 2011, demonstrates large areas of Texas that are under severe, extreme, or exceptional drought conditions.  Water conservation requirements have already been triggered in some cities located in harder-hit [...]

Read More About - Current Texas Drought Conditions »

H2A recently obtained closure from the Texas Commission on Environmental Quality (TCEQ) for a waste management unit located at an industrial plant in west Texas.  The unit, which consisted of a grey water pond used to collect discharge water from employee locker room sinks and showers, was regulated under the Resource Conservation and Recovery Act [...]

Read More About - H₂A Obtains TCEQ Closure at a West Texas Industrial Plant »

H2A’s Shannon Walker, PE, and Si Xu, EIT, recently completed an engineering evaluation of the feasibility of converting an existing dual-phase extraction (DPE) system to two-phase extraction (TPE). The conversion would increase groundwater drawdown and applied vacuum, thereby improving groundwater capture. The evaluation involved determining necessary well flows and associated friction losses based [...]

Read More About - H₂A Engineers Evaluate Feasibility of Converting an Existing DPE System to TPE »

H2A recently expanded their staff, hiring Ms. Si Xu, an EIT and recent graduate of the University of Texas at Arlington (UTA). While pursuing her master’s degree in environmental engineering at UTA, Ms. Xu specialized in hazardous waste management and wastewater treatment.  Her post-graduate project involved an investigation into the relationship between biofilm build-up [...]

Read More About - H₂A Expands, Adding a New Environmental Engineer to Their Staff »

H2A recently utilized a trailer mounted, internal combustion engine (ICE), mobile dual-phase extraction (MDPE) system to successfully complete a 7-day, high vacuum remediation (HVR) soil vapor extraction (SVE) pilot test at a refined products pipeline release site, located in south central Oklahoma.  The area impacted is situated in a remote location within the pipeline right-of-way, [...]

Read More About - H₂A Recovers over 1,600 Pounds of Hydrocarbons at a Remote Site in South Central Oklahoma Using SVE Only »

At a former industrial facility located in North Texas, H2A has achieved elimination of measurable (mobile) LNAPL in 15 of 16 monitoring wells (94%).  Dissolved BTEX plume reductions of 50-70% have also been noted after operating a custom-designed, multiphase extraction (MPE) remediation system at the site for only three years.  Therefore, both mass removal and [...]

Read More About - Mixed Plume Remediation Progress at a North Texas Site »

Mike Hawthorne, Principal Remediation Geoscientist with H2A, will discuss LNAPL Transmissivity as an Improved Metric for Hydraulic Recovery  at the 17th International Petroleum and Biofuels Environmental Conference (IPEC) in San Antonio, Texas, from August 31 through September 2, 2010.  Mike will detail why LNAPL Transmissivity is an excellent metric, how it can be calculated, and [...]

Read More About - H₂A’s Mike Hawthorne to Discuss LNAPL Transmissivity at the 17th IPEC »

H2A now has available for beta testing a new three-tiered environmental risk assessment calculator that fully integrates within the EQuIS Environmental Database operational environment.  Risk3T™ is a flexible standard program designed to calculate risk-based closure levels for any regulatory risk assessment program based on the RAGS/RBCA environmental risk assessment equations.  Risk3T™ contains programming for U.S. [...]

Read More About - Risk3T™ Now Available for Beta Testing – Risk Assessment Calculations in EQuIS® »