0000950129-03-003925 8-K 2 20030806 12 7 20030806 QUANTA SERVICES INC 0001050915 1731 742851603 DE 1231 8-K 34 001-13831 03825035 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 7133506000 1360 POST OAK BLVD SUITE 2100 HOUSTON TX 77056 8-K 1 h07966e8vk.txt QUANTA SERVICES, INC.- AUGUST 6, 2003 EX-99.1 3 h07966exv99w1.txt PRESS RELEASE DATED AUGUST 6, 2003