pH type Characterstics Device subClassOf hasModel max 1 string CatchmentWell subClassOf WaterAsset WasteWaterPlant subClassOf WaterAsset StorageTank subClassOf WaterAsset WaterAsset subClassOf isMeasuredIn only UnitOfMeasure Property subClassOf isMeasuredByDevice only Device Property subClassOf isControlledByDevice only Device WaterMeter subClassOf hasFabricationNo max 1 string WaterMeter subClassOf hasModel max 1 string Valve type Class Conductance type Characterstics Pump type Class GroundWaterWell subClassOf WaterAsset Dam subClassOf WaterAsset Reservoir subClassOf WaterAsset Property subClassOf relatesToMeasurements only Measurement Dam subClassOf WaterAsset WaterMeter subClassOf Device Sensor type Class Actuator type Class WaterMeter subClassOf Device Sensor subClassOf Device Device type Class