A California wastewater contractor

A Calfifornia Wastewater Contractor
Double J Enterprises
Phone (707) 483-7280

California Contractors License# 866228

Package Wastewater Treatment Plants

Contact Double J for installation quotes on all package plants

Need a Plant? Double J Enterprises, Inc can provide you with complete Design & Build Services or professionally construct a plant of your choice. Building of a Wastewater plant should be done by a contractor with extensive knowledge of the biological possesses that are being mechanically stimulated and controlled.  This will assure that the plant is constructed without oversight of the smallest detail, and save headaches at start-up.

Sub-Surface Disposal

From standard leach lines, to engineered pressure compensating, computer controlled zone dispersal, Double J Enterprises, inc. has the experience to get your disposal needs met.

Specializing in GeoFlow™ design, installation and repair.

Maintenance & Repair

Double J Enterprises, Inc offers full service maintenance and repair for all your wastewater / water equipment.  From clarifiers and rotary distributors to aerators, pumps, generators, DAF Units and chlorine injectors.

Aerators:  Complete service, installation and rebuilding of floating, brush and solar aerators.  WE REPAIR ATI AERATORS!!


Coupled with Double J Enterprises vast depth of personnel experience that we offer the Client in Wastewater Systems Equipment Installation and Repair, we also have the capability of providing the Client with in depth consultation on wastewater operating systems. We have, on staff, a Grade V California State Water Resources Control Board Certified Operator that has been certified at this level for no less than thirty six years with a total wastewater experience record of forty five years. He has provided consultation services to the Federal Environmental Protection Agency and the State Water Resources Control Board and has been involved in the operation and/or consultation of more than sixty wastewater treatment plants in California, Texas, Canada, Mexico and the Caribbean. He is a recipient of the operator coveted “William D. Hatfield” Award presented for excellelence in wastewater plant management and responsible for six “Plant of the Year Awards”.

We invite you to take advantage of this experience to solve any of your treatment plant issues associated with, but not limited to the following:

  • Process failure analysis
  • Solutions to failures
  • Process Operating Procedure Review
  • Economic Analysis of Operating Procedures
  • Plant Start Up Procedures
  • Regulatory Agency Coordination
  • Operation & Maintenance Manuals

Underground Utilities

Design, Engineering, Permitting and Construction.

Septic Systems

Installation, Repair and Maintenance of engineered septic systems. Let Double J Enterprises, Inc. show you the most recent advances in septic treatment, made to keep up the tightening regulations.

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A California Wastewater Contractor

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