[
{
  "pwsid": "OH3600312",
  "sample_id": "OH88648",
  "primacy_agency_code": "OH",
  "epa_region": "05",
  "sar_id": 22598774,
  "contaminant_code": "PB90",
  "result_sign_code": null,
  "sample_measure": 0.0014,
  "unit_of_measure": "mg/L"
}
]