The following LSPA compliance tip was introduced at the November 2025 Membership Meeting, which was held via Zoom on Tuesday, November 18, 2025, from 3:45 PM - 5:00 PM.

Compliance Tip  
Remedy Operation Status (ROS) applies only when an active remedial system, mitigation measure, and/or remedial monitoring program is operating/being conducted to achieve a Permanent Solution (310 CMR 40.0893). In the case of a remedial system, once system operation ceases, continued monitoring of site conditions must occur under Phase V unless (1) the monitoring is being conducted pursuant to 310 CMR 40.0893(6)(d) or (2) the monitoring meets the definition of an Active Remedial Monitoring Program. Limited monitoring to document natural attenuation of residual contamination cannot be performed under ROS.

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