Date:04-30-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910034SYSTEM NAME:DOWNEY - CITY, WATER DEPT.COUNTY:LOS ANGELES 
SOURCE NO.:021SOURCE NAME:WELL 19 (OLD WELL 01)SOURCE CLASS:LGLJSTATUS:A



Click to hide / show columns: PS Codes | Group Name | Analyte Number | Analyte Name | Detected Level |Less Than | RL | Unit | MCL | DLR | Last Sampled | Frequency | Next Due | Notes

PS Codes Group Name Analyte Number Analyte Name Results Unit MCL DLR Last Sampled Frequency Next Due Notes
Detected Level Less Than RL
CA1910034_021_021 INORGANIC-202401 1039 PERCHLORATE < 2.000 UG/L 6 2 01-31-2023 12 2024/01 DUE NOW
CA1910034_021_021 RADIOLOGICAL-202708 4109 GROSS ALPHA PARTICLE ACTIVITY < PCI/L 15 3 08-08-2018 108 2027/08
CA1910034_021_021 RADIOLOGICAL-202708 4030 RADIUM-228 < 0.600 PCI/L 1 08-08-2018 108 2027/08
PS Codes Group Name Analyte Number Analyte Name Detected Level Less Than RL Unit MCL DLR Last Sampled Frequency Next Due Notes

RL – Reporting Level means the level to which the laboratory reported the presence of an analyte. For radionuclides, Reporting Level is the MDA95.

DLR – Detection Limit for purposes of Reporting (DLR) means the designated minimum level at or above which any analytical finding of a contaminant in drinking water resulting from monitoring required under Chapter 15 of Title 22 shall be reported to the State Board (California Code of Regulations Section § 64400.34)

For addtional definitions, please refer to our data dictionary.