
Keeping Trash out of water ways since 2017
At Hydra TMDL Systems, LLC, our mission is to protect and preserve water quality for future generations by developing and delivering innovative, high-performance trash capture systems that prevent pollution at the source and support sustainable stormwater management.
Our start
In 2003, the founder of Hydra TMDL Systems, LLC developed the first stainless-steel Automatic Retractable Screen (ARS) named the Surf Gate—a pioneering solution designed to prevent trash and debris from entering storm drain systems during dry weather while automatically opening during rain events to prevent flooding. This innovation was created in direct response to a request from the City of Los Angeles for a system capable of blocking trash from entering catch basin inlets during dry periods, yet capable of unlocking when stormwater reached 50% of the curb height.
Partnering with the prime contractor Ecology Control Industries, the founder’s design was submitted for evaluation alongside several competing concepts. After thorough testing by the City of Los Angeles, the ARS gate was selected as the most effective and reliable solution. Over the following four years, the team manufactured and deployed over 29,000 ARS systems and 15,000 Connecting Pipe Screens (CPS) throughout Los Angeles. These installations were instrumental in helping the City achieve Phase I, II, and III compliance with its Trash Total Maximum Daily Load (TMDL) requirements.
Building on the lessons learned through field experience, the founder continued refining the system—resulting in the development of the modern HYDRA ARS system. This next-generation solution features a cost-effective, low-theft-value design while maintaining a trash capture effectiveness rate of up to 98%, ensuring superior performance with minimal maintenance requirements.
At the heart of Hydra’s engineering philosophy is a commitment to custom, site-specific stormwater solutions. Drawing on a 40-year career in aerospace structural flight testing for both military and general aviation, the founder brings a rigorous approach to performance testing, durability validation, and precision engineering.
Now serving as Director of Engineering, he continues to lead product development efforts, creating practical and effective stormwater systems that address the unique needs of municipalities nationwide. Hydra TMDL Systems, LLC manufactures all products in-house using a full suite of advanced fabrication equipment, including:
- CNC machinery
- Hydraulic press brakes (up to 12 ft / 130 tons)
- 8’ Metal Shear
- Laser, MIG, and TIG welding
- Plasma cutting
- Punching and stamping
- Haas mills and lathes
This vertically integrated manufacturing capability allows Hydra to maintain strict quality control and deliver robust, field-tested solutions for modern stormwater management challenges.

Our mission
We are committed to protecting water quality by delivering reliable, certified trash capture products like the HYDRA ARS Automatic Retractable Screen and Hydra CPS Connecting Pipe Screen, designed for full capture and environmental compliance.
Our commitment
Our team’s extensive experience and dedication ensure effective storm water management solutions tailored to each project’s needs, with proven installations across multiple states demonstrating our expertise and reliability.


Our expertise
HYDRA TMDL Systems LLC specializes in comprehensive storm water trash capture systems that meet regulatory standards. Our solutions have been successfully implemented in diverse environments, showcasing our leadership in this critical field.
