1050 37th Street | P.O. Box 200069 Evans, Colorado 80620

Phone: (970) 339-5360 | Toll Free: 1 (888) 695-5883 | Fax: (970) 330-2261

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Our Leadership...

Mary Lu Walton

Executive Director

Marty Kennedy

Finance and Administration Director

Linda Medina

Compliance & Monitoring Coordinator

Celeste Ewert

Program Services Director

Karen Colasacco

Adult Case Management Director

Kay Wells

Administrative Coordinator

Moniqua Herrington

Children's Case Management Director

Travis Colvin

Human Resources Director

Mary Lu has worked in the Colorado Community Centered Board system since 1974. She has been involved with most areas of local community systems that provide services for persons with intellectual and/or developmental disabilities, including: direct care assignments, case management, chairing committees, managing adult residential and day programs, and assisting overall operations of an agency.


Mary Lu accepted the position as executive director for Envision in November 1996. She has consistently applied her leadership skills to establish and maintain a stable management team, develop and maintain provider and   community relationships, re-brand and re-organize the entire agency, restructure departments, enforce operational and staff accountability, and address the quality of services delivered throughout Weld County.

Marty joined Envision in October, 2010 as Finance and Administration Director. Marty has over 13 years of nonprofit finance and operations leadership experience in Colorado nonprofit organizations and her work history includes working for Special Olympics Colorado, Family Tree, Inc., Community Shares Colorado of Colorado and Morris Animal Foundation. Marty has a Bachelor’s degree in Business Administration with additional graduate studies in accounting and management.

Linda has worked for and with individuals with developmental disabilities for 23 years in Colorado. After 19 years in case management, 16 of which have been at Envision with the past 13 in the position as Case Management Director, Linda is currently serving Envision as the Compliance & Monitoring Coordinator. Linda has a Bachelor’s degree in Psychology from Cornell College. In an attempt to travel and to experience as much of the world as possible in her youth, Linda had lived and worked in Minnesota, North Dakota, Iowa, Wisconsin, South Dakota, New York, and other parts of Colorado. Her experience includes positions in tourism, retail, pharmacy assistant, child care, youth in crisis, and painting, in addition to developmental disabilities. She is now mostly happily grounded with her husband, 3 grown stepchildren, 7 brilliant and beautiful grandchildren, and currently 1 dog and 3 cats.

In 2007, Moniqua “Moni” began her career with Envision as an Early Intervention Case Manager and was hired as the Children’s Case Management Director on April 13, 2015. Moni was born and raised in Montana where she attended college at the University of Montana in Missoula and later transferred to the University of Northern Colorado in Greeley where she obtained her Psychology degree. Moni is certified as a Routine’s Based Interview Trainer and enjoys enhancing her knowledge as often as she can in overall child development and early childhood mental health. Moni enjoys attending local festivals, traveling, especially finding unique places to visit off the beaten path, and loves experiencing all the seasons of Colorado weather. 

Karen joined Envision in July of 2000 as an Employment Consultant and moved to Adult Case Management as a Case Manager in May of 2001. She became the Adult Case Management Coordinator in January of 2007 and was reassigned as the Adult Case Management Director in July of 2012. Karen currently supervises the Adult Case Management Department. She serves as the liaison for Human Rights Committee at Envision. Karen received a Bachelor of Social Work with a Minor in Gerontology from CSU - Chico in Northern California. Prior to moving to Colorado her work history includes providing direct care to individuals with developmental disabilities, Certified Nursing Assistant for patients receiving home health care, and Director of Social Services for skilled nursing facilities in California and Arizona. Karen enjoys working with staff, individuals, and families and assisting them in accessing services and supports that will promote the individuals success and enhance quality of life.

Celeste has a 20-year history with Envision. She started in direct care and quickly moved to a mid-management position. In 1999, she accepted the position as Director of the Residential Department and was responsible for managing all phases of Residential Services. In 2009 Celeste was appointed Director of the Program Services Department at Envision. Celeste has an associate degree in paraprofessional counseling from Aims Community College and a bachelor’s in psychology from UNC.

Kay came to Envision in November, 1996, with experience in both case management and administration. Previously Kay worked for 13 years at the community centered board in Eastern Colorado in both those departments. Kay's work history includes acting as liaison to Boards of Directors, chairing the Eligibility Referral Committee, acting as contracts manager and Envision's lead investigator for incidents of alleged mistreatment, abuse, neglect and exploitation. In addition, Kay co-developed and presents training for law enforcement agencies and first responders in identifying and communicating with people with developmental disabilities.

Travis joined the Envision team in July of 2013. With over 12 years in the human resources field, Travis brings a diverse background of experience to Envision, including manufacturing and healthcare. Travis has a Bachelors degree in Business Administration and holds a Senior Professional in Human Resources (SPHR) certification.