Approval to renew BL113-15, inspection, calibration, maintenance, repair and replacement of gas monitors, gas flow meters and oxygen sensors on an annual contract (March 09, 2018 through March 08, 2019), with Argus Group Holdings, LLC dba Argus-Hazco, base bid $400,000.00 (negotiated cost savings of approximately $12,000.00). (Staff Recommendation: Approval)