• Stormwater outfall monitoring — continuous or event-triggered surveillance at urban discharge points

• Combined sewer overflow (CSO) event detection, characterization, and volume estimation

• Urban runoff first-flush monitoring — capturing the most polluted initial runoff from impervious surfaces

• Construction site runoff compliance monitoring (turbidity and pH permits)

• Green infrastructure performance assessment — rain gardens, bioswales, and retention ponds

• Catchment-scale water quality trend analysis for urban master planning

1. Event Monitoring

Purpose: Capture the “first flush” — the critical first 30–60 minutes of a storm when pollutant concentrations peak. Essential for regulatory compliance and pollution source tracking.

Key parameters: Turbidity, TSS, conductivity, pH, ammonia.

2. Flood Monitoring

Purpose: Provide early warning of flash floods and combined sewer overflows (CSOs). Protect communities and critical infrastructure.

Key parameters: Water level, flow velocity, rainfall intensity.

3. Continuous Monitoring

Purpose: Establish baseline water quality, track long-term trends, and validate the effectiveness of green infrastructure (bioswales, retention ponds, rain gardens).

Key parameters: DO, COD, temperature, conductivity, turbidity.

💡 All Linksens sensors feature IP68-rated housings, optional solar power compatibility, and standard Modbus RTU output for plug-and-play integration with SCADA, PLC, and cloud-based monitoring platforms.

Q: How do sensors handle the highly variable and intermittent nature of stormwater flows?

A: Linksens sensors are continuously powered and measure in real time — making them ideal for capturing the rapid water quality changes that occur during the 'first flush' of a storm event, when pollutant concentrations are highest. For outfalls where flow is intermittent, sensors can be configured to activate on a float switch or flow sensor trigger, minimizing power consumption during dry periods.

Q: Can turbidity sensors reliably measure in the highly turbid conditions of construction site runoff?

A: The S-TUR032 turbidity sensor covers the standard measurement range for most urban runoff conditions. For construction sites where extremely high turbidity is expected during active earthmoving, please contact us to discuss the appropriate sensor model and measurement range for your site permit conditions.

Q: Do Linksens sensors comply with stormwater monitoring permit requirements in my country?

A: Linksens sensors output standard measurement values (turbidity in NTU, pH, COD as mg/L, etc.) compatible with most stormwater discharge permit data requirements. Regulatory compliance depends on the specific permit conditions and approved analytical methods in your jurisdiction. Our sales team can advise on documentation, calibration records, and data output formats required for permit reporting.