Date:04-29-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1900100SYSTEM NAME:METTLER VALLEY MUTUALCOUNTY:LOS ANGELES 
SOURCE NO.:801SOURCE NAME:290 STRE...*SOURCE CLASS:DBPASTATUS: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
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2943 BROMODICHLOROMETHANE 1.700 0.500 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2942 BROMOFORM 2.700 0.500 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2941 CHLOROFORM 0.830 0.500 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2454 DIBROMOACETIC ACID < 1.000 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2944 DIBROMOCHLOROMETHANE 3.500 0.500 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2451 DICHLOROACETIC ACID < 1.000 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2456 TOTAL HALOACETIC ACIDS (HAA5) < 1.000 UG/L 60 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2450 MONOCHLOROACETIC ACID < 1.000 UG/L 2 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2950 TTHM 8.800 2.000 UG/L 80 09-14-2023 12 2024/09
CA1900100_DST_801 DISINFECTION BYPRODUCTS-202409 2452 TRICHLOROACETIC ACID < 1.000 UG/L 1 09-14-2023 12 2024/09
CA1900100_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.