Electricity in Dumas is not owned or controlled by the City.   It is owned by Xcel Energy.  Street lighting is also owned by  Xcel Energy.   Their customer service phone number is 800-895-4999 and website
All traffic signals on  Dumas Avenue (Highway 287) and First Street (Highway 281) are controlled by TXDOT.  Their phone number is 806-934-1122 and website

If you have code questions, please call the Building Inspector's office at 806-935-4101.