Log Sheets The following Log Sheets and Checklists are provided below as a resource for NWT Communities to use: Weekly Chlorine and Turbidity Logsheet Batch Chlorination Logsheet Colilert Presence/Absence Bacteriological Water Sampling Records Typical Weekly Checklist for a Truckfill Station Typical Monthly Checklist for a Truckfill Station Typical Annual Spring Maintenance for a Truckfill Station