North America’s Leader in Turnkey Water Treatment Solutions

Envent Corporation provides turnkey soil and water treatment engineered solutions. Our experienced engineering team delivers safe, compliant, and cost-effective systems for process water treatment, large-scale construction dewatering, and emergency environmental response. Whether using one of our mobile treatment units or a new engineered installation, we provide complete management of contaminated streams across refinery, petrochemical, industrial, oilfield, and construction sectors.

” They provided timely communication and, with the support of their teams, contributed to a safe Turnaround. Their quick response to events helped us maintain our commitments to safety and the environment. I would not hesitate to recommend them to lead crews on other jobs.”

Area Technical Manager at Irving Oil

“They deliver exceptional performance, over and beyond our expectations contractually.”

S&H Superintendent at BP

Based on this experience, I am comfortable recommending Envent Corporation for any degassing, vapor control, or related services. Their technical capability and consistent performance make them a dependable service provider.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation completed their scope ahead of schedule and under budget. Their planning, resource management, and execution met the needs of the project.

Senior Project Engineer, Valero Houston Refinery

Safety remained a consistent focus during the project. Envent Corporation’s approach to identifying and addressing potential risks contributed to a safe work environment for personnel.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation mobilized promptly and reached the required degas threshold within 18 hours of startup, prior to any tank washing or cleaning.

Senior Project Engineer, Valero Houston Refinery

Envent Corporation demonstrated professionalism and provided reliable engineering and operational support throughout the job.

Senior Project Engineer, Valero Houston Refinery

The Critical Need for Advanced Water Remediation

Industries must provide the safe management of complex and hazardous streams to protect the environment and maintain regulatory standing. Envent specializes in the remediation and management of wastewater, hydrotest water, groundwater, stormwater, industrial water, Ammonia, H2S, Sour water, Oil, BTEX, PFAS, Heavy Metals, Chlorinated Hydrocarbons, and other contaminated streams. Using engineered solutions is essential to meet the demands of the project scope while adhering to strict local, state, and federal environmental standards.

Why Choose Envent for Water Treatment

  • National Fleet
    Envent maintains the  newest fleet of portable remediation systems in North America,rapid deployment, reliable performance, and minimal downtime anywhere in the United States and Canada.
  • Engineering Experience
    Our engineers, will work with yours to provide every system is technically sound and meets the specific demands of your complete remediation project.
  • 24/7 Emergency Response
    We provide immediate action and emergency environmental response to handle urgent contamination snags with technical precision, often mobilizing within hours.
  • Full Regulatory Support
    We handle the permitting process and agency coordination, making sure all operations meet strict federal and state environmental standards.
  • Cost-Efficient Operations
    Our engineered solutions are designed to shorten downtime and lower total project costs by optimizing performance for your specific facility conditions.
  • Extensive Coverage
    Mobile units are available for rapid deployment across North America, including Hawaii, Alaska, and throughout Canada.

Specialized water Treatment

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Specialized water Treatment
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Envent Corporation delivers fully mobile, engineer-owned water treatment services and groundwater remediation across North America. We specialize in providing full turnkey solutions that remove contaminants to non-detect or strict permit limits, including Benzene, BTEX, VOCs, Chlorinated solvents, Ammonia, PFAS, Heavy metals, Oil & grease, TSS, and COD/BOD.

Our Mobile Treatment Applications Include

  • Groundwater Remediation
    High capacity systems for long-term or short-term cleanup.
  • Hydrostatic Test Water Treatment
     Managing large-volume discharges from pipeline integrity testing.
  • Refinery Process Water & Tank Bottoms
     Specialized treatment of complex, oily, and sour water streams.
  • Stormwater & Construction Dewatering
     Rapid-response filtration for high-flow runoff and excavation sites.
  • Landfill Leachate & Produced Water
     Treatment of highly concentrated and variable flowback streams.
  • PFAS / PFOS / PFOA Mitigation
     Advanced ion exchange and filtration for “forever chemicals.”

100% Turnkey Compliance Management- Envent engineers personally handle the entire project lifecycle to make sure you stay in full alignment with the Clean Water Act and state-specific programs like the California Regional Water Quality Control Board NPDES Programs.

  • Permitting Expertise
    We manage NPDES individual/general permits, POTW / sewer pretreatment permits, and e-DMR submission.
  • Technical Operations
    System design, rapid mobilization (24–72 hrs), and 24/7 onsite operation.
  • Analytical Support
    Daily sampling, lab analysis, real-time monitoring, and full audit-ready compliance packages.

The Largest Portable Remediation Fleet in North America- By using the largest and newest fleet of activated carbon, air strippers, oil-water separators, ion exchange, and advanced oxidation units, we provide the most reliable industrial water treatment in the industry.

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Pipeline & Tank Hydrotest Treatment
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Envent Corporation provides turnkey solutions for soil and water treatment, specializing in the management and remediation of wastewater, hydrotest water, groundwater, stormwater, landfill leachate, and other complex contaminated streams.

Our specialized treatment processes are engineered to effectively remove oil and grease, VOCs, BTEX compounds, particulates, and heavy metals, making sure a clean discharge that meets all local and federal environmental compliance standards.

From refinery process water treatment to large-scale construction dewatering, Envent’s mobile treatment units and experienced engineers provide safe, compliant, and cost-effective operations. By using our full remediation systems, we help operators manage high-volume hydrostatic test water anywhere in North America, protecting local waterways while improving project timelines.

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Groundwater Treatment Systems
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We provide turnkey solutions for soil and groundwater remediation and treatment, delivering safe, efficient, and regulatory-compliant results. Our expertise spans multiple industries, including petrochemical, environmental engineering, industrial, and oilfield services.

Envent’s groundwater treatment systems are specifically designed to remove and treat a wide range of contaminants, including VOCs, BTEX compounds, chlorinated hydrocarbons, PFAS, petroleum hydrocarbons, heavy metals, and other hazardous constituents commonly found in impacted soil and groundwater.

Featured Water Treatment Projects

Envent’s proven performance in mobile wastewater treatment is demonstrated through our successful execution of large scale remediation projects

Envent Mobile Water Treatment Unit – VOC, pH and H2S Mobile Water Treatment Systems

Envent Mobile Water Treatment Unit – VOC, pH and H2S Mobile Water Treatment Systems

February 2023
Freeport, Texas, VOC and Oil & Grease Mobile Water Treatment

Freeport, Texas, VOC and Oil & Grease Mobile Water Treatment

June 17, 2025
Indiana Refinery Turnaround Emissions Control Flareless H2S – Turnkey Services

Indiana Refinery Turnaround Emissions Control Flareless H2S – Turnkey Services

June 17, 2025
West Texas Terminal Hydrotest Water Treatment Project – Carbon Filtration & Air Stripping

West Texas Terminal Hydrotest Water Treatment Project – Carbon Filtration & Air Stripping

June 17, 2025
Southern California Landfill, Leachate Groundwater Treatment – PFAS & Organics

Southern California Landfill, Leachate Groundwater Treatment – PFAS & Organics

November 2024
Northern California, Mobile Water Treatment and Vapour Extraction

Northern California, Mobile Water Treatment and Vapour Extraction

June 17, 2025
Envent Provides Turnkey Dewatering Services for Electrical Substation Relocation

Envent Provides Turnkey Dewatering Services for Electrical Substation Relocation

June 17, 2025
Refinery – Envent Mobile Wastewater Solution Saves Client Time and Money

Refinery – Envent Mobile Wastewater Solution Saves Client Time and Money

June 17, 2025

Turnkey Water Treatment faqs

Can Envent maintain compliance when discharging?

Yes. We pull the permits, run the plant, file the e-DMRs, and maintain your NPDES compliance.

Our standard mobilization for mobile water treatment units is 24–72 hours anywhere in North America.

Yes. We provide a complete management solution where our engineers pull the necessary permits, operate the plant, and file electronic Discharge Monitoring Reports (e-DMRs). We verifies your project stays in full alignment with the Clean Water Act and programs like the NPDES.

Our systems are engineered to remove a wide range of hazardous constituents to non-detect or strict permit limits. This includes Benzene, BTEX, VOCs, PFAS/PFOA, heavy metals, chlorinated solvents, ammonia, H2S, and oil & grease.

Yes. We design integrated treatment trains, combining oil-water separators, air strippers, and specialized filtration, to manage “mixed” waste containing oil, VOCs, metals, and solids. This engineered approach treats difficult refinery process water or tank bottoms to non-detect or permit levels in a single pass.

Yes. We utilize the advanced filtration to mitigate PFAS, PFOS, and PFOA down to non-detect levels.

We operate the newest fleet of portable remediation systems in North America. This includes oil-water separators, air strippers and activated carbon vessels.

Yes. We provide turnkey hydrotest treatment services engineered to effectively remove particulates, heavy metals, and hydrocarbons from large-volume discharges. This ensures clean discharge into local waterways while improving your project timeline.

Yes. Every project is managed by experienced engineers and technicians who provide 24/7 on-site operation. We handle daily sampling, lab analysis, and real-time monitoring to provide audit-ready compliance packages.

Envent provides complete management of contaminated streams across the refinery, petrochemical, industrial, oilfield, and construction sectors. We also support municipal authorities with stormwater and wastewater remediation.

Expert Solutions for Safe, Compliant Operations

Minimize downtime and eliminate regulatory risk with Envent’s complete environmental services. Our engineering team provides the latest mobile technology to handle your most complex vapor and water challenges while guaranteeing 100% compliance with strict EPA and USCG standards.