Ian Doliana, P.E.

Remediation and Redevelopment Project, Texas — Led the design effort and worked closely with the field team to implement a pilot- and full-scale remediation application of colloidal activated carbon, zero-valent iron (ZVI), electron donor, and bioaugmentation culture at a complex industrial site. Developed a dynamic dosing approach informed by an analysis of high-resolution site characterization, verification testing, and pilot testing to address complex geological conditions and variable contaminant mass distribution. During the design phase, deployed flux mapping tools to identify and confirm mass flux zones with data support from initial hydraulic profiling and investigation cores and temporary wells. Groundwater models were utilized to determine the cleanup timeframe and effective longevity of the treatment. Adjustments to the vertical volumetric loading were made on a point-by-point basis to account for lithological variability, focusing delivery within high-conductivity zones while effectively targeting interfaces and storage zones.

Railyard Project, Englewood, New Jersey — Served as lead design engineer for a multiphase in situ remediation program to address elevated concentrations of chlorinated solvents in soil and groundwater. The site presented challenging hydrogeologic conditions, with predominantly low-permeability clay formations and isolated transmissive zones contributing to offsite plume migration. Developed a treatment strategy focused on aggressive source area remediation, combining ZVI, electron donors, and bioaugmentation culture to promote sustained reductive dechlorination. The approach also included targeted soil excavations and placement of amended backfill in the shallow saturated zone. A second phase treatment program was designed for the adjacent downgradient property that used a similar injection approach tailored to local lithologic and plume conditions.

Former Manufacturing Facility, Massachusetts — Served as part of a multidisciplinary design team to develop an in situ remediation strategy addressing chlorinated solvents in overburden and shallow/deep bedrock as well as dissolved cadmium impacts in overburden groundwater. The site presented challenging hydrogeologic conditions, with contamination impacts distributed across multiple lithologic units and treatment zones. The remedial approach used injections of electron donors through both direct-push borings and bedrock injection wells to promote reductive dechlorination throughout the overburden and bedrock intervals. In cadmium-impacted areas, incorporated ZVI to foster strongly reducing conditions favorable for metal immobilization and stability. pH buffering and a combination of targeted reagents were applied to optimize geochemical conditions and enhance long-term treatment effectiveness across varied subsurface conditions.

LNAPL Remediation Site, New Jersey — Served as a lead engineer in the development of a targeted strategy to address persistent light nonaqueous-phase liquid (LNAPL) impacts in fine-grained soils. Historical monitoring indicated a recurring LNAPL presence despite repeated prior mechanical recovery efforts. Designed an approach using a strong chemical oxidant to mobilize recalcitrant LNAPL trapped within low-permeability soil matrices, followed by multiphase extractions to recover the liberated product. The treatment successfully restored transmissive conditions and enhanced LNAPL recovery. Post-treatment monitoring has confirmed that no measurable LNAPL has reappeared in the treated area.

Former Air National Guard Remediation Site, Virginia — Developed a multifaceted remedial approach to address a large, long-standing chlorinated ethene plume with a history of previous remediation efforts. The strategy focused on reducing overall plume mass while preventing further migration. Designed a series of flow-through treatment transects, where injected amendments created zones with enhanced abiotic and biotic reductive dechlorination potential, effectively treating dissolved contaminants as groundwater passes through the zones. The distal transect at the edge of the plume incorporated a sorptive component to increase retention time and improve treatment effectiveness. Modeling was performed to determine the optimal dosing reaction zone dimension as well as to estimate the lifespan of the distal transect capture zone.

Manufacturing Facility Remediation, South Carolina — Led the design of a pilot- and full-scale remediation program to address comingled PFAS and chlorinated solvent impacts in saturated overburden at an active facility. The full-scale approach implemented a 100-ft-long permeable sorptive barrier to intercept and treat contaminated groundwater as it migrated downgradient. The design leveraged site-specific hydrogeologic data to optimize barrier effectiveness and provide long-term contaminant attenuation for both PFAS and chlorinated solvent constituents. Mass flux analysis and groundwater modeling was used to determine the effective treatment longevity and potential need for reapplication.

Former Car Rental Remediation Site, New Jersey — Developed a targeted in situ remedial design to rapidly address petroleum hydrocarbons and oxygenate impacts in soil and groundwater. The strategy combined sorptive amendments with enhanced anaerobic biodegradation (nitrate and sulfate reduction) in areas without oxygenate impacts. In zones containing oxygenates, a source of bioavailable oxygen was incorporated to stimulate aerobic biodegradation of both petroleum and oxygenate species. When necessary, included limited soil excavations with amended backfill to address source area contamination. The integrated approach optimized treatment across heterogeneous conditions and accelerated contaminant mass reduction.

Former Manufacturing Facility Remediation, North Carolina — Developed pilot and full-scale remedial designs to address chlorinated ethene and ethane impacts across multiple zones, including shallow saprolite and intermediate/deep partially weathered bedrock. Evaluated chemical composition, soil properties, groundwater flow, and geochemical conditions to optimize an enhanced reductive dechlorination and chemical reduction strategy. Provided technical support to field teams during the pilot test, analyzed pilot data, and incorporated findings into the full-scale remedial approach to ensure effective contaminant mass reduction across heterogeneous subsurface conditions.

Superfund Remediation Site, New Jersey — Performed design and modeling to develop a remedial approach addressing two distinct contamination sources on the property: one impacting groundwater with chlorinated solvents, and the other with chlorobenzene and petroleum hydrocarbons. The goal for both areas was to prevent downgradient migration into an adjacent surface water stream. The remedial design implemented a series of permeable reactive barriers (PRBs) composed of colloidal activated carbon combined with site-specific degradation components to extend barrier longevity. Selected an abiotic destructive method using specialized ZVI for the chlorinated solvent plume, and applied enhanced aerobic biodegradation to treat the chlorobenzene and petroleum plume. Incorporated periodic recharging of the barrier amendments into the long-term management plan to maintain treatment effectiveness.

Former Grocery Store and Service Station Remediation, Kentucky — Led the design of an in situ remedial program to address a large hydrocarbon plume within challenging karst geology that was characterized by complex flow dynamics and strong downward groundwater movement. The plume extended over a significant vertical interval, reaching competent bedrock in some areas. Developed a strategy of strategically placed treatment zones to stimulate biological reduction of petroleum compounds while preventing further migration. Groundwater flux modeling was applied to optimize the placement and lifespan of permeable reactive barriers, ensuring sustained treatment performance across heterogeneous subsurface conditions.

Former Manufacturing Facility Remediation, New Jersey — Served as lead designer for an in situ remedial application targeting 1,4-dioxane in a deep bedrock aquifer using activated sodium persulfate. Evaluated geophysical logs, chemical composition, and groundwater flow to develop a targeted injection strategy employing four open-borehole bedrock wells. The design ensured complete coverage of the remaining contaminant zone while optimizing reagent delivery. The single-round injection achieved >90 percent reduction in the 1,4-dioxane concentration in the treated area.

Metal Manufacturer, Arkansas — Directed a multiphase remedial construction project to address a large chlorinated solvent plume, which included source zone treatment at an active facility and installation of several strategically located PRBs. Managed a large team of contractors and field crews to ensure accurate placement, installation quality, and adherence to project schedules. Coordinated closely with onsite tenant management to maintain uninterrupted facility operation throughout the remedial activities, balanced safety, operational continuity, and technical performance.

In Situ Bioremediation Project, Massachusetts — Led field operations during winter night work at a large, multi-plume property implementing in situ bioremediation. Oversaw the installation of multiple treatment grids, delivering liquid amendments through large-diameter, direct-push borings. Coordinated field teams to ensure safe, efficient, and accurate application under near-zero temperature conditions. The project was completed on schedule with no safety incidents.

Former Manufacturing Facility, New Jersey — Oversaw the implementation of a multiphase remedial program to address chlorinated solvent impacts at an active facility. The treatment strategy included the sequential application of activated sodium persulfate, followed by in situ sorption and enhanced bioremediation using colloidal activated carbon, an electron donor, and bioaugmentation. Managed field crews to ensure accurate amendment delivery, adherence to design specifications, and effective integration of each treatment phase across the site.