Stone Creek Environmental Consulting, LLC is an environmental consulting firm specializing in environmental permit planning and compliance. 

We support our clients in developing cost-effective and streamlined compliance strategies focused on meeting regulatory needs. 

We specialize in several program areas including municipal storm water management, hazardous materials management, and environmental site assessments. 





Colleen started Stone Creek Environmental Consulting to provide expert level environmental consulting services to the regulated community. Colleen brings 21 years of regulatory compliance experience, including 18 years experience with the North Coast Regional Water Quality Control Board and 2 years working for a private consulting firm. Her regulatory background provides a strong understanding of environmental regulations, allowing her to provide streamlined, cost-effective, and solution driven compliance strategies to our clients. 

Colleen is a Certified Professional in Municipal Stormwater Management. 

In her free time, Colleen enjoys spending time with her husband Ethan, son Ramon and two dogs Mickey and Rosie. Outside the office you will find Colleen at the sewing machine, trying a new recipe, or at the gym. 


Mr. Rivera is a Professional Civil Engineer with expertise in water quality protection and restoration, including the planning, standard-setting, permitting and enforcement associated with wastewater and storm water systems, agricultural activities and land development, soil and groundwater remediation activities, and hazardous materials.

He started his career in 1978 at the US Environmental Protection Agency and in 1984 joined the California Regional Water Quality Control Board, North Coast Region. In 2004 he was appointed as the Assistant Executive Officer and in that capacity provided managerial guidance and administrative and budgetary direction for all Regional Water Board activities.  He retired from the Regional Water Board in December 2012.

Rivera is a translator for the City of Novato, and serves on the board of the Novato Theater Restoration Project.

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Mrs. Stone has spent a 30 year career as an office manager and bookkeeper to her employers, including Help-U-Sell and UC Allied Brookers. Mrs. Stone retired from full time work in 2018 and now spends her time in the garden and at the gym. She also vacations in Mexico frequently with her husband Jim.

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