Engineered for Safe and Effective Liquid Waste Removal

West-Mark offers a full line of liquid waste trailers engineered for safe, compliant, and efficient waste evacuation. From municipalities and industrial sites to military operations, our equipment is proven in the field—including U.S. Navy deployments for evacuating oil and bilge waste from ship hulls.

Need a custom solution? West-Mark’s team combines decades of experience in vacuum systems and trailer-mounted tank design to deliver liquid waste trailers tailored to your operational demands. From spill response to routine waste management, our units are built for long-term performance, reliability, and safety in the most demanding environments.

Built for Compliance. Designed for Customization.

No two waste management operations are alike. That’s why every West-Mark liquid waste trailer is engineered to your exact specifications—from tank capacity and stainless-steel construction to vacuum pump system layouts and DOT-compliant plumbing configurations.

Do you need high-capacity suction, hazardous waste transport, specialized suction ports, or compartmented tanks? West-Mark’s in-house engineers apply 3D modeling, FEA testing, and over 50 years of experience to design liquid waste trailers that deliver reliable, field-ready performance in the most demanding environments.

With West-Mark, you’re not just getting a tank; you’re investing in a fully integrated system built to perform, comply, and endure.

Trusted by Industry and Government Agencies

West-Mark liquid waste trailers are built for those who demand performance without compromise. Field-proven across municipal utilities, oil and gas, environmental services, and U.S. military operations, our equipment delivers reliability and durability in every mission.

With a focus on safety, uptime, and regulatory compliance, West-Mark liquid waste trailers and vacuum systems are trusted for a wide range of applications, from ship bilge evacuation to remote spill containment. When failure isn’t an option, our equipment delivers—job after job, year after year.

24/7 SUPPORT

All customers have access to their rep during business hours, or an emergency line at (800) 692-5844 any other time. We are here when you need us.

24-HOUR RESPONSE TIME

Emails, phone calls and texts will be returned within one business day.

FOR IMMEDIATE ASSISTANCE:
(800) 692-5844