Recent Projects by the Ensolum, LLC team

Customer Photo Solutions Provided
Apartment Complex Fungal/Mold Issue
Texas, US

Ensolum, LLC provided fungal consulting services including the investigation, scope of work development and post-remediation clearance of multiple affected units. Ensolum assessed each affected unit for both water-damaged and fungal-contaminated building materials and contents. Representative asbestos samples were collected from building materials expected to be disturbed or removed during remediation. Ensolum developed unit-specific mold remediation protocols and interpreted each scope of work during remediation, then completed the post-remediation investigations of each to verify that remediation was successful. The project consisted of completing initial fungal assessments, asbestos surveys, mold remediation protocols and post-remediation fungal assessments.

Foundry Respirable Silica Exposure Monitoring
Texas, US

Ensolum was retained by the client to provide certified industrial hygiene consulting services to help the client achieve compliance with the new respirable crystalline silica rule. Ensolum worked with the client to identify employee risk potential and developed a personal exposure monitoring sampling plan which would accurately identify employee exposures. Ensolum collected the on-site samples during a heavy work shift and analyzed the third-party data provided by the accredited laboratory. Ensolum is currently providing the client with engineering and administrative control recommendations which when implemented, will create complete compliance with OSHA’s new respirable crystalline silica rule.

Asbestos Consulting Services
Texas, US

The project consisted of removing floor tile and mastic throughout the building. In addition, ceramic tile mortar was removed from the second through tenth floor of the tower (example are Photos 2 and 3, below). As a part of the services provided, Ensolum assisted with soliciting bids from asbestos abatement contractors and providing air monitoring and project management throughout the abatement process. Ensolum performed visual inspections of the abated areas prior to performing final air clearance activities. Upon completion of the abatement activities, Ensolum prepared and delivered a comprehensive report which included a description of the project and air monitoring results.

Commercial Environmental Conditions Testing
Hawaii, US

The project consisted of completing one (1) ASTM E1527-13 and AAI-compliant Phase I Environmental Site Assessment, a Limited Site Investigation, Remediation and Site Closure. Ensolum identified Recognized Environmental Conditions during the completion of the Phase I Environmental Site Assessment. A Limited Site Investigation (Phase II ESA) was completed which included advancing borings on-site, collecting representative soil samples, and interpreting the data in comparison with State of Hawaii Tier I EALs. Sample results indicated that petroleum and lead-contaminated soils were present. Ensolum reported the release, submitted a Corrective Action Work Plan to regulators for review and approval and remediated the affected area by excavating and disposing of the soil under the supervision of the State of Hawaii Department of Health.

Massdec, LLC - On-site Safety and Health Consulting
Hawaii, US

The project consisted of pre-purchase health, safety and environmental due diligence, and is currently in the site work stage of redevelopment. Ensolum was retained by Massdec, LLC to provide a qualified Site Safety and Health Officer (SSHO) to verify that the contractors, guests, regulators and visitors were properly protected from hazards associated with the sub-surface soil and groundwater contamination. Ensolum trained all authorized site workers in Hazardous Waste Operations and Emergency Response (HAZWOPER) in accordance with 29 CFR 1910.120, developed a site-specific Health and Safety Plan (HASP) and provides daily compliance oversite, primarily to prevent site workers from Benzene and other volatile organic compound exposure. Ensolum currently manages medical surveillance, industrial hygiene, Benzene and VOC monitoring, PPE selection and use, HAZMAT operations, etc.

Confined Space Entry and Rescue training
Texas, US

Ensolum provided the client with a combination of initial Confined Space Entry and Rescue training and refresher Confined Space Entry and Rescue training. The project consisted of completing both initial and refresher Confined Space Entry and Rescue training. Ensolum’s expert trainers completed a pre-training site reconnaissance to familiarize themselves with the facility, its operating procedures and its permit-required confined spaces. Ensolum then returned to the facility in order to conduct the customized training. Ensolum led a classroom portion of training which educated participants of the physical and chemical hazards of their specific confined spaces and familiarized them to the specific equipment and personal protective equipment they would be required to use. Following the classroom portion of the course, Ensolum trainers provided participants with scenario-based practical training including purging, ventilation calculating, life support system design, vertical and horizontal entry and rescue, etc.

Asbestos Management Plan & Testing
Texas, US

As a part of the services provided, Ensolum conducted a file review of the previous management plan and survey reports. Ensolum then deployed a team of inspectors to filed verify reports and to collect samples of suspect ACM that had not been previously tested. More than 300 samples were collected during the reinspection. Ensolum updated the management plan which fulfilled all requirements by the EPA’s Asbestos Hazard Emergency Response Act for developing and maintaining an asbestos management plan. The management plan included results and asbestos survey reports of the recently sampled materials and descriptions of abated areas.

Enterprise Crude Pipeline
Texas, US

Ensolum personnel provided environmental consulting services in association with a release of crude oil from a pipeline pump station. The scope included subsurface investigation, risk-based assessment, and remediation utilizing the Railroad Commission of Texas (RRC) Field Guide for the Assessment and Cleanup of Soil and Groundwater Contaminated with Crude Oil/Condensate From a Spill Incident and Texas Risk Reduction Program (TRRP) regulatory guidance. During initial spill response activities, soil was excavated at the release source and placed into treatment cells constructed on-site. The affected soil was treated using a balanced fertilizer to enhance biodegradation of the crude oil. Treated soil was periodically tilled for a period of three (3) weeks to increase oxygen availability and stimulate naturally occurring bacteria in the soil which metabolize organics including petroleum hydrocarbons. An interceptor trench was installed between the source area and a nearby tributary. Two (2) underflow dams and absorbent booms were installed within the tributary to restrict the flow of crude oil in the creek. A permeable reactive barrier wall was installed to reduce the mass and restrict the downgradient migration of petroleum hydrocarbon compounds detected in on-site groundwater. Activated carbon was injected into the subsurface and was amended with a sulfate-reduction mechanism (BOS-200®) to take advantage of both aerobic and anaerobic environments. BOS-200® is a blend of select nutrients, a cultured mix of bacteria (symbiotic facultative microbes) that are known petroleum hydrocarbon degraders, gypsum, activated carbon, and iron. Approximately 193,241 gallons (4,601 barrels) of crude oil have been recovered to date utilizing vacuum trucks and mobile dual- phase extraction units. DPE, also known as multi-phase extraction, vacuum-enhanced extraction, or sometimes bio-slurping, is an in-situ technology that draws a vacuum on the formation and removes contaminated groundwater, phase separated hydrocarbons, and hydrocarbon vapor from subsurface soil. Extracted NAPL and impacted groundwater are collected for recycling or disposal and extracted vapor is consumed by the normal combustion process of the engine. Ensolum is currently conducting groundwater monitoring to ensure plume stability and the effectiveness of the soil and groundwater response actions. Additional DPE events will be conducted at the Site prior to filing a restrictive covenant limiting the future use of the initial groundwater bearing-unit and requesting regulatory closure from the RRC.

Petroleum Products Terminal Environmental Consulting Services
Texas, US

The project site is an operating refined petroleum products terminal located in Fort Worth, Texas. During the completion of due diligence activities related to a real estate transaction at an adjacent property, petroleum hydrocarbons were identified in soil and groundwater as a result of a release from the pipeline manifold at the terminal. Ensolum personnel were retained to further investigate the magnitude and extent of petroleum hydrocarbons in the on-site soil and groundwater, and to conduct response actions to mitigate on-site contamination and its off-site migration. Subsequent to the completion of investigation and groundwater resource classification, which included a Class 3 GW resource designation, a Remedy Standard B closure, utilizing a Plume Management Zone, was selected for the on-site affected area, and a Remedy Standard A closure was selected for the off-site affected area. To reduce the concentrations of chemicals of concern (COCs) in the off-site soil and groundwater to below the TRRP Tier 1 Critical Protective Concentration Levels, in-situ chemical oxidation was selected as the appropriate response action. Due to the unique characteristics of the fractured, low-hydraulic conductivity, limestone formation, the selected reagent was delivered to the affected soil and groundwater utilizing gravity feed infiltration trenches. The formation was prepared for contaminant oxidation by inoculating the treatment area through the infiltration trenches with an alkaline oxidative de-ionizing solution, sodium percarbonate and sodium persulfate. This served as a wetting agent, de-ionizing clay platelets and optimizing aqueous reagent contact with contaminants. The pre-oxidation alkaline de-ionizing solution also serves as a persulfate catalyst (producing sulfate radicals). Twelve to twenty-four hours after installing the initial oxidant blend, the treatment area was subsequently inoculated through the infiltration trenches using VeruSolve-HP™ aqueous reagent as a Surfactant-Enhanced In-Situ Chemical Oxidation (S-ISCO™) Coelution Technology™. VeruSOLVE-HP™ is a stabilized surfactant-cosolvent/oxidant combination effective for surgical destruction of source term contaminants. The stabilized surfactant-cosolvent/oxidant blend achieves Winsor Type I solubilization, where the contaminant is solubilized as a single-phase micro-emulsion and dissolution of constituents occur without mobilization. This allows for the destruction of the contaminants that are currently in a non-aqueous phase (i.e. the source term). The resulting redox reaction will occur over a very long period of time. Reaction kinetics are controlled, sustaining a highly oxidative environment for weeks. Extended persistence greatly increases the contaminant-oxidant contact occurrence, thereby producing very favorable results. The initial treatment event reduced the concentration of benzene from 2.7 mg/L to 0.051 mg/L and MTBE from 120 mg/L to 2.5 mg/L in the off-site groundwater. A follow-up treatment event further reduced the concentrations to 0.006 mg/L, which was below the TRRP Tier 1 Critical PCL for a Class 3 groundwater-bearing unit.

Schkade Production Company- Subsurface Investigation, Geologic Unit Evaluation and Fate & Transport Modeling
Texas, US

A hydrocarbon and produced water seep was identified in a creek which traverses the site. The producer immediately terminated production operations at the site in accordance with RRC instructions. The seep was identified in the creek to the east of the suspect injection well. The RRC requested the producer initiate containment and remediation operations at the seep to manage the discharge of phase-separated hydrocarbons (PSH) and produced water into the creek and backflow to the injection wells. The producer deployed oil absorbent pads and booms and other equipment to manage the seep at the site. Several plugged production wells completed in the 1940s on behalf of other producers are located at the site. Based on the available RRC documentation, each of these wells were drilled utilizing cable-tool drilling techniques and were plugged subsequent to completion due to an insufficient volume of crude oil for production or at a later date due to diminished production. The producer re-entered select plugged cable-tool wells to evaluate each as a potential source of the seep. Ensolum personnel documented the plugging materials and depths of each material associated with each cable-tool well, collected PSH samples and produced water samples. PSH samples were submitted for paraffin (P), isoparaffins (I), aromatics (A), naphthalene (N), and olefins (O) analysis. PIANO analysis or “fingerprinting” is commonly utilized to evaluate the source and/or make-up of PSH samples. The water samples were submitted for cations/anions (potassium, chloride, sulfate, calcium, magnesium, sodium, nitrate as nitrogen, alkalinity, bicarbonate alkalinity and carbonate alkalinity) analysis to evaluate the likely geologic formation where the water originated. Ensolum personnel also reviewed RRC UIC records, Texas Water Development Board records regarding formation waters, and Texas Society of Petroleum Engineers publications regarding formation water geochemistry to evaluate the potential source of the water. Based on the laboratory analytical results, observations of pressure at select data points during the completion of investigation activities, site geology and the exposure of an artesian brine aquifer to the historic cable-tool production wells, a historic cable-tool well was identified as the likely source of contamination to the creek.

Crude Oil Bulk Storage Terminal and Transmission Hub
Harris County, TX

Multiple projects were completed as Ensolum supported more than half a dozen assets within the client’s facility. Each project consisted of coordinating discharge sampling with the maintenance/construction team scheduled on short notice for work after hours and through weekends. Ensolum remained fluid in availability so that sampling and observation of hydrostatic discharge was performed to ensure that the client remained compliant to the criteria and requirements to the TCEQ Texas Pollutant Discharge Elimination System General Permit.

Refined Petroleum Product Pipeline
Grimes County, TX

The project consisted of performing soil screening/sampling and documenting response action effectiveness according to the TCEQ Chapter 327 Spill Rules to the cleanup standards of the Texas Risk Production Program 30 TAC Chapter 350.

Pre-Acquisition Due Diligence on Facility Expansion
Nueces County, TX

During pre-acquisition due diligence, Ensolum discovered the presence of plugged and abandoned oil and gas wells from historic exploration and production activity dating to at least the 1930s. Inadequate records presented a data gap and need for further research. Ensolum was able to determine that the documentation of the decommissioned wells were available from the Railroad Commission of Texas, however their location could not be confirmed from records or Site reconnaissance. Therefore, Ensolum recommended the client perform a geophysical survey if the property was purchased and prior to the start of any construction activity to pinpoint the locations of any issues of concern. Additionally, Ensolum learned the Site was transected by an unmarked pipeline that was found in records, but not the Site visit. The recommended geophysical survey could also provide insight into locating the pipeline if not marked by the appropriate stakeholder.

Page: 1
Total Events: 13