Eric Thiry, Andrew Phelps, Mike Ammel

Eric Thiry, Andrew Phelps, Mike Ammel

Locally Owned and Operated since 2001

Our group of employees have extensive experience in water utility operations and management. We are recognized for providing professional, innovative and efficient operation services in the Houston area. The firm’s partners have been involved in the Municipal Utility District (MUD) industry in Houston since 1980. As a service company, our number one mission is Customer Service.

In early 2001, Mike Ammel, Eric Thiry, and Andrew Phelps started Environmental Development Partners (EDP) with a vision to provide professional and personal customer service. The values they set have propelled EDP to operate and maintain District facilities in Harris, Fort Bend, Montgomery, and Brazoria counties. The policy and Code of Ethics they set for themselves and all employees, can be summarized in two words, Act Honorably.

  • Honesty
  • Safety
  • Reliability
  • Accountability
  • Hard Work
  • Quality Service
  • Personal Customer Service

“If the phone rings, we pick it up.”
Mike Ammel – President

  • Drinking water system operation, maintenance and repair
  • Sanitary sewer system operation, maintenance and repair
  • Twenty-four hour emergency and non-emergency response
  • Publications, website creation & revisions, bill stuffers & flyers
  • Customer service and assistance
  • Utility billing services
  • Electronic payment options
  • Water conservation plan administration
  • Regulatory compliance
  • Drought contingency planning and program administration
  • Disaster response, participating in the Harris County Emergency Radio Network
  • Utility system consulting (with short and long term planning)

Our Leadership

Mike Ammel
Co-Founder and President

Andrew Phelps
Co-Founder and Executive Vice President

Eric Thiry
Co-Founder and Executive Vice President

Cathy Falke
General Manager

Bart Downum
Builder Services Manager

Chris Zilko
Construction Manager

Greg Camp
Compliance and Safety Manager

Shelia Calicut
Customer Service Manager

Sherry Ammel
Billing and Collections Manager

Customer Testimonials