Date:07-26-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910134SYSTEM NAME:CALIFORNIA WATER SERVICE CO. - HERM/REDOCOUNTY:LOS ANGELES 
SOURCE NO.:800SOURCE NAME:HR-D-001...*SOURCE CLASS:DBPQSTATUS: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
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2943 BROMODICHLOROMETHANE 8.800 0.500 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2942 BROMOFORM 5.400 0.500 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2941 CHLOROFORM 6.300 0.500 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2454 DIBROMOACETIC ACID 3.700 1.000 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2944 DIBROMOCHLOROMETHANE 12.000 0.500 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2451 DICHLOROACETIC ACID 6.000 1.000 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2456 TOTAL HALOACETIC ACIDS (HAA5) 11.000 2.000 UG/L 60 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2450 MONOCHLOROACETIC ACID < 2.000 UG/L 2 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2950 TTHM 32.000 0.500 UG/L 80 06-04-2024 3 2024/09
CA1910134_DST_800 DISINFECTION BYPRODUCTS-202409 2452 TRICHLOROACETIC ACID 1.600 1.000 UG/L 1 06-04-2024 3 2024/09
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.