Stormwater Visual Monitoring Quarterly Log

Quarterly inspection log for industrial stormwater discharge visual assessments under the EPA Multi-Sector General Permit (MSGP), documenting color, odor, clarity, solids, foam, and oil sheen observations, along with outfall conditions and corrective actions.

Inspection Details and Weather Conditions

• Inspection date and time recorded
• Quarterly monitoring period identified
  Record the calendar quarter and monitoring period covered by this visual assessment.
• Rainfall event timing verified within permit window
  Document the qualifying storm event timing and the elapsed time since the last measurable storm event, if applicable.
• Weather conditions at time of inspection

Outfall and Discharge Observation

• Outfall identifier recorded
• Discharge present at outfall
• Discharge color observed
• Discharge odor observed

Visual Indicators of Pollution

• Clarity acceptable
  Assess whether the discharge appears reasonably clear and free of visible contamination.
• Visible suspended solids present
• Foam observed
• Oil sheen observed

Site Conditions and Corrective Actions

• Potential source of contamination identified
• Corrective action initiated
• Non-conformance documented and escalated