This Top Tips bulletin explains how molecular biological tools support effective bioremediation of acid rock drainage by identifying beneficial microbial populations and guiding treatment strategies. It highlights how tools such as QuantArray®‑BGC and next‑generation sequencing help establish baseline conditions, monitor sulfate and metal reduction, and demonstrate ecosystem recovery over time.
This Top Tips bulletin explains how molecular biological tools support informed remedy selection at chlorinated solvent sites by comparing monitored natural attenuation (MNA), enhanced bioremediation, and combined biotic/abiotic treatments. It highlights how in situ microcosms, QuantArray®‑Chlor, and mineralogical analyses provide field‑based evidence of biological and abiotic degradation to guide cost‑effective remediation decisions.
This technical overview explains the differences between CENSUS® qPCR and QuantArray® technologies and how each supports microbial characterization, remediation decision‑making, and performance monitoring. It provides practical guidance on when to use targeted single‑gene analysis versus multi‑gene array profiling to efficiently evaluate biodegradation, corrosion, and biogeochemical processes.
This white paper describes how stable isotope probing (SIP), QuantArray®‑Petro, and QuantArray®‑NSZD work together to evaluate biodegradation of petroleum hydrocarbons under real site conditions. By combining proof of degradation with pathway‑specific and microbial community data, these complementary tools support defensible decisions for monitored natural attenuation (MNA), bioremediation, and long‑term site management.
This white paper explains how combining molecular, mineralogical, and field‑based tools provides a more complete understanding of chlorinated compound degradation at contaminated sites. It shows how QuantArray®‑Chlor, abiotic testing, and in situ microcosms work together to improve remedy selection, support monitored natural attenuation, and increase confidence in site management decisions.
For over a decade, QuantArray®‑Petro, has provided engineers a high‑throughput qPCR platform that simultaneously quantifies functional genes involved in aerobic and anaerobic biodegradation of petroleum hydrocarbons, including BTEX, PAHs, MTBE, and alkanes. QuantArray®‑Petro provides defensible microbial lines of evidence to support monitored natural attenuation (MNA), evaluate enhanced bioremediation, and guide petroleum‑impacted site management decisions.
Used by practitioners around the world since 2012, this paper describes QuantArray®‑Chlor, a high‑throughput qPCR platform that simultaneously quantifies key microorganisms and functional genes involved in the biodegradation of chlorinated solvents. QuantArray®‑Chlor provides comprehensive, actionable data to support site assessment, remedy selection, and performance monitoring for chlorinated groundwater remediation.
This white paper explains how next‑generation sequencing (NGS) is used to characterize subsurface microbial communities and assess biodegradation processes at contaminated groundwater sites. By integrating NGS with qPCR, the approach provides powerful lines of evidence to support monitored natural attenuation (MNA), evaluate remediation performance, and inform data‑driven site management decisions.
For more than 20 years, In Situ Microcosms (ISMs), have been used as an in‑well groundwater remediation tool that enables direct, side‑by‑side comparison of monitored natural attenuation (MNA), biostimulation, and bioaugmentation under actual aquifer conditions. ISMs integrate contaminant chemistry, geochemistry, and molecular microbiology to provide defensible, EPA‑relevant lines of evidence for remediation technology selection and…
This technical bulletin explains how aerobic cometabolism and abiotic degradation can be critical mechanisms supporting monitored natural attenuation (MNA) at chlorinated ethene sites, particularly in large or dilute plumes. It describes how molecular biological tools, mineralogical analyses, and degradation rate studies provide defensible evidence of contaminant destruction beyond traditional groundwater trend analysis.