Engineering Effects on Operations and Maintenance Engineering Effects on Operations and Maintenance Paul Nehm Madison Metropolitan Sewerage District Areas of Concern Equipment lifting Equipment access Materials of construction Drainage Ease of Operation Ease of Maintenance Safety O&M Department Staffing 10 - Operators 5 Metrogro plus contractors 8 - Mechanics 9 - Electricians and Instrumentation 12 - Building and Grounds 2 - Inventory/Purchasing 5 - Sewer Maintenance/Monitoring Services Services Equipment Lifting Equipment Access Materials of Construction Drainage Ease of Operation Ease of Maintenance Safety Equipment Selection Talk to others who have it. Prequalify Consider performance testing after installation Consider how process will work if a piece of equipment is out of service Equipment Selection (continued) Consider turn-down. How well will the piece of equipment work at low loadings? Be careful when specifying spare parts. General Concerns Provide for O&M training on new equipment. Have O&M personnel sign off on installation. Minimize confined spaces. Keep retainage until you and the O&M group are satisfied with the installation. Review Your Work Have O&M personnel review the plans and specifications. Return after a year to see what the O&M personnel like and dislike about your design. Dont make the same mistake twice.