A RegulatoryThreshold with a siteId applies only to AnalyticalResults collected at that particular site. This is important because permit conditions often differ between sites — the allowable benzene concentration at one remediation site may differ from a neighboring site under a different permit. Assigning the correct siteId to each RegulatoryThreshold ensures exceedance detection fires against the right regulatory limit for each site rather than applying a blanket limit that may not reflect the site's specific compliance obligations.
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Regulatory Threshold Site
The `siteId` on a RegulatoryThreshold restricts the limit to a specific monitoring site.