We seek vendors who share our commitment to equal opportunity and affirmative action. Purchasing and Contract Services.If you are not already a member, please complete a CPV Membership Application. This contracting guide is for providers who are contracting with or are interested in contracting with Hennepin. County Health and Human Services. Read real reviews and see ratings for Hennepin, IL lawn irrigation specialists for free! Dates: Ends June 30th, 2017.