Element 13: Monitoring & Measurement To establish and maintain regular monitoring and measurement procedures to ensure compliance with legal and other Requirements (see Element 4), measure biosolids program performance at critical control points (see Element 3 & Element 10), and track progress toward achieving goals and objectives (Element 5) for the biosolids program. Also, to maintain records and documents as established in Element 12. The Encina Wastewater Authority must require its contractors to establish and maintain regular monitoring and measurement procedures and practices for all their assigned biosolids management activities, as defined in their Service Agreements. ELEMENT 13 DOCUMENT: Objective Definitions Summary Procedures Documentation & Responsibility Checklist