However, soil remediation for PMC was required. Therefore groundwater compliance monitoring was required. If checked, skip to below. Releases to Groundwater –Remediation or other Compliance Measure was not Required Substances were detected in groundwater at the subject portion of the property, but all detected substances in groundwater were less than criteria before remediation or initiation of other compliance measure. The nature and distribution of all plumes associated with all releases have been characterized in accordance with prevailing standards and guidelines, including the SCGD (Phase III Investigation) or equal alternative approach. If #2 is checked, skip to . below. Releases to Groundwater – Remediation or other Compliance Measure was Required Substances in groundwater, and associated with a release at the subject portion of the property exceeded criteria at any time. The nature and distribution of all plumes associated with all releases at the subject portion of the property have been characterized in accordance with prevailing standards and guidelines, including the SCGD (Phase III Investigation) or equal alternative approach. If #3 is checked, complete the information in the box below. Criterion Exceeded Category of COC Compliance Measure Background Non-chlorinated VOCs Air Sparging / Vapor Extraction GWPC Chlorinated VOCs Dual-Phase SWPC Metals Pump & Treat VolC PAHs Monitored Natural Attenuation SVOCs ELUR PCBs RSR Exemption Petroleum Hydrocarbons Use of RSR Alternatives Pesticides / Herbicides Other: Rem#: If remedial measures were conducted to address Vapor Intrusion, complete box below: Vapor Intrusion Remedial Measure Sub-slab depressurization Indoor-air monitoring Vapor barrier Alternative B. Application of Groundwater Remediation Standards In order to validate the application of the Groundwater Remediation Standards, all subsections of B.1 below are expected to be completed.
Compliance samples were collected during 4 sampling events that reflect seasonal variability. (ii) Completed in 1 year Completed in 2 years A substance was detected in any one seasonal quarter > criteria. Explained in VR, in Section , page . Alternative Means to Demonstrate Compliance (Commissioner approval) 22a-133k-3(g)(2)(iii) Release Area (RA) ID #’s or Site-Wide Approval date(s): Copy(s) of Approval(s) must be attached to VR 2a. Groundwater Compliance not applicable – Incidental Sources 22a-133k-3(f) Release Area (RA) ID #’s or Site-Wide Trihalomethanes resulting from releases of drinking water from public water supply system, or Metals, petroleum hydrocarbons, or semi-volatile substances, provided such pollution is due to: Incidental release due to normal operation of motor vehicles A result of normal paving and maintenance of pavement 3. Background Groundwater Quality 22a-133k-3(a)(1)(B) and k-3(a)(2) Release Area (RA) ID #’s or Site-Wide Groundwater in GA area meets Background Groundwater Quality 22a-133k-3(a)(2) Background Water Quality not required (see 4a. below) 22a-133k-3(d) Exemption from Background due to Technical Impracticability 22a-133k-3(e)(1) Rem#: 4. Compliance with Background 22a-133k-3(g)(2)(B) Release Area (RA) ID #’s or Site-Wide Sampling locations are representative of plume, and analytical results ≤ Background concentration for groundwater OR (i) 12 consecutive monthly samples from each sampling location are ≤ 95% UCL (ii)