latest step change

http://environment.data.gov.uk/def/bathing-water-quality/latestStepChange

comment
An open-domained property referencing the most recent relevant :StepChange typically associated with a :BathingWater or a :ComplianceAssessment. In the case of a :ComplianceAssessment, the reference is to the most recent :StepChange within the time interval covered by the assessment.
label
latestStepChange
pref label
latestStepChange
is defined by
bathing water quality.ttl
range
step change