conoco tw monument level 30 cost estimate design volume 60 mmcf 700 psig following summary facility requirements associated cots tie conoco tw 10 suction side monument compressor station facilities release costs 10 x 8 tee side valve 30 000 efm das rtu chromatograh 130 000 h 2 analyzer buildings 8 ultrasonic measurements 40 000 flow control valve pressure override 135 000 isolation valve overhead 15 50 250 contingency 10 33 500 total 418 750 questions please call