Stormwater Monitoring Equipment
A practical guide to the field equipment used to monitor stormwater discharges, rainfall, runoff, water level, flow, and water quality at industrial sites, construction sites, outfalls, and drainage systems.
Core equipment categories
Rainfall and triggering
Rain gauges and weather data help determine when a qualifying storm event occurred and whether sampling or inspection requirements were triggered.
Sampling
Grab-sampling kits, bottles, poles, automatic samplers, coolers, labels, chain-of-custody forms, and preservation supplies support defensible sample collection.
Field meters
pH, conductivity, turbidity, temperature, dissolved oxygen, and multiparameter meters help screen conditions and document field observations.
Typical stormwater monitoring station
- Rain gauge or reliable local rainfall source.
- Defined outfall, sampling point, or monitoring location.
- Field meter or sampling kit appropriate for permit parameters.
- Optional water-level sensor, flow meter, or automatic sampler for unattended events.
- Field log, inspection checklist, photographs, and corrective-action notes.
Selection workflow
- Confirm the permit or program objective.
- Identify pollutants, benchmarks, or parameters of concern.
- Confirm whether grab sampling, automatic sampling, or continuous monitoring is needed.
- Check access, safety, flow conditions, power, mounting, and communication needs.
- Document calibration, maintenance, sample handling, and data review procedures.