Date:04-12-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1900018SYSTEM NAME:LIVINGSTON-GRAHAM HANSON AGGREGATESCOUNTY:LOS ANGELES 
SOURCE NO.:801SOURCE NAME:MAIN BUI...*SOURCE CLASS:DBPTSTATUS: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
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2943 BROMODICHLOROMETHANE 5.800 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2942 BROMOFORM 8.200 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2941 CHLOROFORM 6.200 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2454 DIBROMOACETIC ACID 2.800 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2944 DIBROMOCHLOROMETHANE 9.600 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2451 DICHLOROACETIC ACID 3.500 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2456 TOTAL HALOACETIC ACIDS (HAA5) 13.000 6.000 UG/L 60 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2453 MONOBROMOACETIC ACID 1.700 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2450 MONOCHLOROACETIC ACID < 2.000 UG/L 2 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2950 TTHM 30.000 4.000 UG/L 80 08-19-2022 36 2025/08
CA1900018_DST_801 DISINFECTION BYPRODUCTS-202508 2452 TRICHLOROACETIC ACID 4.700 1.000 UG/L 1 08-19-2022 36 2025/08
CA1900018_DST_801 REGULATED SOC-null 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 DUE NOW
PS Codes Group Name Analyte Number Analyte Name Detected Level Less Than RL Unit MCL DLR Last Sampled Frequency Next Due Notes

*Please refer to the Stage 2 DBP Monitoring Plan Approval Letter for full sample point names.
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.