Tamco Professional Coating Services, Inc. violated federal law when it discriminated against an employee because of his disability, the U.S. Equal Employment Opportunity Commission (EEOC) charged in a lawsuit filed here today. Tamco Professional Coating Services, Inc., (Tamco) which is based in Houma, La., performs sandblasting, painting, soda blasting, pressure washing, water blasting, cleaning, coating, and minor fabrication and repair services.