[
{
  "pwsid": "MA4245000",
  "violation_id": "3",
  "facility_id": null,
  "population_served_count": 10964,
  "npm_candidate": "N",
  "pws_activity_code": "A",
  "pws_deactivation_date": null,
  "primary_source_code": "GW",
  "pop_cat_5_code": "4",
  "primacy_agency_code": "MA",
  "epa_region": "01",
  "pws_type_code": "CWS",
  "violation_code": "02",
  "violation_category_code": "MCL",
  "is_health_based_ind": "Y",
  "contaminant_code": "2950",
  "compliance_status_code": "K",
  "viol_measure": null,
  "unit_of_measure": null,
  "state_mcl": null,
  "is_major_viol_ind": null,
  "severity_ind_cnt": null,
  "compl_per_begin_date": "2025-04-01 00:00:00",
  "compl_per_end_date": "2025-06-30 00:00:00",
  "latest_enforcement_id": "8",
  "rtc_enforcement_id": null,
  "rtc_date": null,
  "public_notification_tier": 2,
  "originator_code": "S",
  "sample_result_id": null,
  "corrective_action_id": null,
  "rule_code": "220",
  "rule_group_code": "200",
  "rule_family_code": "220"
}
]