A combined sewer system is often found in older communities where single pipe systems were originally installed to collect sewage and stormwater. Combined sewer overflows (CSO) happen during wet weather events when the discharge of wastewater and stormwater flows into a river, stream, lake or ocean. These overflow events can cause serious water pollution problems therefore CSO sites require a permit from regulatory agencies.
A requirement of holding a CSO permit is to report all overflow events and duration for each CSO site when they occur. Failure to properly report events can result in heavy fines to the permit holder. The challenge is to find an efficient, cost effective method of:
- Monitoring CSO sites remotely
- Collecting data without a costly, time-consuming and hazardous site visitation
- Creating reports