About EJA

Elston Johnson and Associates was established in 2014 and is based in Round Rock, Texas. We partner with experts across the water sector to provide comprehensive consulting services for state agencies, engineering firms, and private/public owned utilities.

We aim to be an industry leader in maintaining the viability of our natural resources and ensuring a secure water future for Texas and its citizens. We accomplish this through our high standards, work ethic and partnerships, and community involvement.

Why Choose Us

Our extensive experience and deep industry knowledge allow us to guide clients through the regulatory process with ease. By offering a full suite of services, we are able to provide a more thorough and streamlined experience—often saving our clients time and money.

25+ years of industry experience

Proven strategies coupled with strong network

Comprehensive services

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Meet Our Team

Elston Johnson

Owner and President

As founder and President of EJA, Elston utilizes his 25 plus years of experience, leadership skills, and expertise to coordinate, develop, and implement regulatory based environmental programs, within the drinking water and wastewater space.

Professional Affiliations



Patty Reeh

Senior Environmental Specialist

Patty Reeh is an experienced environmental professional; she provides strong leadership and relationship building skills to guide clients through the vast array of continuously evolving regulations. With over 35 years of experience in state and local government environmental agencies, developing regulations and overseeing enforcement, Patty is well versed in government regulatory programs spanning water, waste, and air.

Certifications