Ability to: make logical engineering judgments and decisions; read and understand engineering information from plans, drawings, specifications, manuals, correspondence, reports, graphs and memos; analyze technical information, problems, situations, practices or procedures to identify relevant concerns, formulate logical and objective conclusions and recognize alternatives and their implications; communicate orally using appropriate vocabulary and grammar to obtain and provide information and explain policies and procedures; write engineering reports and other technical documents; understand and perform statistical computations; establish rapport and gain the trust of others; operate personal computers and associated engineering software; and all knowledge, skills and abilities required at the lower levels. Provide water quality clearance for highway projects including technical reports for inclusion in required environmental impact statements and ensure compliance with federal and State water quality regulations; perform assessments and determine compliance with federal and State requirements regarding air quality, noise control and hazardous waste and prepare required reports.