Maintenance Program Assessment

Maintenance Program Assessment

Purpose Provide a concise, actionable evaluation of a facility’s maintenance program for water and wastewater treatment systems. Identify gaps, prioritize corrective actions, and recommend measurable improvements to increase equipment reliability, reduce downtime, and optimize operating cost.

Scope

• Mechanical, electrical, instrumentation, and control systems supporting treatment processes

• Preventive, predictive, and corrective maintenance practices

• Spare parts management, vendor support, and contract services

• Maintenance planning, scheduling, and work execution

• Maintenance-related training, competency, and safety practices

• CMMS review and data quality

• Key performance indicators (KPIs) and continuous improvement processes

Assessment Methodology

1. Document review

   • Maintenance SOPs, PM task lists, lubrication and alignment procedures, isolation/lockout guides

   • Equipment OEM manuals, electrical schematics, P&IDs, and past work orders

   • Spare parts inventory records, service contracts, and warranty files

   • CMMS reports (backlog, overdue PMs, work order cycle times), safety incident logs, and training records

2. Site inspection and interviews

   • Walkdown of critical assets (pumps, blowers, mixers, chemical feed, screens, clarifiers, motors, valves)

   • Visual inspection for alignment, vibration, leakage, corrosion, and improper installations

   • Interviews with operations, maintenance technicians, stores, and management to verify practices and constraints

3. Data analysis

   • CMMS data integrity and KPI validation

   • Failure mode analysis for repeat failures and root causes

   • Spare parts lead time vs. stocking strategy

   • Maintenance labor utilization and overtime trends

4. Risk and criticality assessment

   • Assign criticality to assets using consequence-of-failure criteria (safety, environmental, production, cost)

   • Prioritize PMs and predictive tasks based on criticality and failure history

Findings (typical issues)

• Incomplete or obsolete PM task lists; PMs not reflecting OEM guidance or actual field conditions

• CMMS data poor quality: incomplete work order histories, inconsistent coding, and large overdue PM backlogs

• Reactive maintenance culture with high emergency repair rates and excessive overtime

• Spare parts shortages for long-lead items and poor stocking policy for critical spares

• Insufficient predictive maintenance (PdM) coverage: limited vibration,

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