Service List
        PS20-001
Ms. Patricia Van Gerpen
Executive Director
South Dakota Public Utilities Commission
500 E. Capitol Ave.
Pierre, SD 57501
patty.vangerpen@state.sd.us
(605) 773-3201 
Ms. Kristen Edwards
        Staff Attorney
        South Dakota Public Utilities Commission
        500 E. Capitol Ave.
        Pierre, SD 57501
  kristen.edwards@state.sd.us
        (605) 773-3201 
Ms. Mary Zanter
        Pipeline Safety Program Manager
        South Dakota Public Utilities Commission
        500 E. Capitol Ave.
        Pierre, SD 57501
        mary.zanter@state.sd.us
        605) 773-3201 
Mr. Luke Litteken 
        Sr VP Gas 
        Xcel Energy Services Inc. 
        1800 Larimer Street 
        Denver, CO 80202 
        luke.a.litteken@xcelenergy.com
        (303) 571-3993      

