... ,300GRD-12/31/2"11,6039000,750GRD-12/41/2"11,6041.2001,000GRD-12/51/2"11,6051.5001,250GRD-12 ... /61/2"11,6061.8001,500GRD- ... 12/71/2"11,6072.1001,750GRD- ... 12/81/2"11,6082.4002,000GRD-12/101/2"11,60103.0002,500GRD- ... -34/83/4"16,0082.4003,800 copper ground rod