Creative Concepts

We develop innovative services with the goal of providing a customized solution to every client’s specific needs.

Quality Products

Our products provide clients with a simple, easily usable solution that can be implemented within multiple media and used effectively by various audiences.

Cost Effective

Unencumbered by large company bureaucracy, we're able to process contracts quickly, meet tight deadlines while providing quality services and products.


Our team of software engineers are certified in various cloud computing, in house data management and storage practices.

What We Do?

Water Quality

  • Monitoring program design and implementation
  • Reasonable Potential Analysis
  • Quality Assurance Project Plans (QAPP)
  • Site-specific objectives/Water-effects ratio

Permit Compliance

  • Permit review and negotiation
  • Permitting services for all steps of permit issuance.
  • Water, Wetland, and Cannabis permitting.
  • Permit-driven studies and reporting

Data Services

  • Manage, Maintain, Process Data
  • Map Based Report Graphics/GIS custom applications
  • Central Valley Regional Data Center
  • Processing Spatial and Statistical Analysis

Develop Applications

  • Process, Life Cycle, Software Creation
  • Agricultural Coalition Member Portals
  • ASP.NET Applications
  • Cloud Hosting Via Amazon Web Services

Our Recent Works

Agricutural Coalition Member Portals

An online tool built for the growers in East San Joaquin Coalition to view their membership information, checklist, upcoming events and submit their Farm Evaluation and NMP Summary Report through the online forms.

Irrigated Lands Regulatory Programs

MLJ-LLC assists six different agricultural coalitions with various tasks including management of membership data, water quality data management, water quality monitoring and reporting, and specialized studies required for permit compliance. MLJ-LLC specializes in assisting agriculture with compliance issues involving both surface and groundwater.

American Water

MLJ-LLC created new features and corrected existing features such as property easements, water main lines, well sites, pump stations, and integrated everything into California American Water’s Asset Management software. Approximately 5,000 assets were corrected and modified, 1,000 easements created, and roughly 1700 as-builts were catalogued and geo referenced.


MLJ-LLC assists numerous clients with compliance with permits that range from the Phase II stormwater permit to the industrial general permit promulgated by the State Water Resources Control Board. MLJ-LLC successfully obtained a grant that allows a client to develop a Stormwater Resources Management Plan and is now completing the SRMP for the client.

Bacterial source tracking

MLJ-LLC is working with a client to determine the source of bacterial contamination in groundwater monitoring wells. Using a combination of standard Total coliform testing and Real Time PCR techniques, MLJ-LLC determined the source of the bacterial contamination in monitoring wells downgradient from three regional POTWs.

Nitrate leaching

MLJ is conducting a study funded by CDFA FREP to evaluate the leaching of nitrate past the root zone in a walnut orchard. Leaching is being estimated by measuring the nitrate load moving past the root zone coupled with 1-dimensional modeling of vadose zone processes. The information will be used to advise growers about fertilizer management practices that can effectively reduce the amount of nitrogen moving to groundwater.

Central Valley Regional Data Center

The Central Valley Regional Data Center (CV RDC) is one of the four regional data centers that support the California Environmental Data Exchange Network (CEDEN). The CV RDC is being managed through Michael L. Johnson, LLC (MLJ-LLC). The CV RDC works with data generators and specifically with the Region 5 Irrigated Lands Regulatory Program to standardize and submit their ambient water quality data into the CEDEN system.

Learn More>>

Meet Our Management Team

Michael L. Johnson, PH.D.


Dr. Michael L. Johnson is the President and Managing Partner of MLJ-LLC. Dr. Johnson brings over 25 years of extensive experience in both academia and industry to problems involving water quality. Dr. Johnson has a Bachelor’s and Master’s degree from the University of Colorado and a PhD from the University of Kansas.

Francisca Campos Johnson, PH.D.

Vice President, Senior GIS Specialist

Dr. Francisca Johnson started her career in the agricultural chemical industry performing research on cross-resistance of agricultural pests to pesticides. She then took the research experience to the field as a technical representative and then as a senior accounts supervisor.

Melissa Turner, M.SC.

Vice President, Senior Environmental Scientist

Melissa Turner currently manages water quality projects including sampling design, project development and report writing. Ms. Turner's background includes a variety of field and laboratory experience including water, soil, invertebrate and fish sampling, snorkeling surveys to assess fish populations, various laboratory analysis including NMR, HPLC, GC and RT-PCR.

You can find a list of contacts for all our staff by clicking on the button below.

Our Clients

Keep in touch with us

1480 Drew Ave. Suite #130
Davis, CA 95618

Tel: (530) 756-5200

Fax: (530) 756-5225

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