Date:07-24-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910234SYSTEM NAME:WALNUT VALLEY WATER DISTRICTCOUNTY:LOS ANGELES 
SOURCE NO.:806SOURCE NAME:STN 7 - ...*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
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202402 2943 BROMODICHLOROMETHANE 5.100 0.500 UG/L 1 11-14-2023 3 2024/02 DUE NOW
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202402 2942 BROMOFORM 2.600 0.500 UG/L 1 11-14-2023 3 2024/02 DUE NOW
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202402 2941 CHLOROFORM 4.400 0.500 UG/L 1 11-14-2023 3 2024/02 DUE NOW
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2454 DIBROMOACETIC ACID 3.400 1.000 UG/L 1 05-14-2024 3 2024/08
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202402 2944 DIBROMOCHLOROMETHANE 6.600 0.500 UG/L 1 11-14-2023 3 2024/02 DUE NOW
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2451 DICHLOROACETIC ACID 13.000 1.000 UG/L 1 05-14-2024 3 2024/08
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2456 TOTAL HALOACETIC ACIDS (HAA5) 20.000 2.000 UG/L 60 05-14-2024 3 2024/08
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 05-14-2024 3 2024/08
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2450 MONOCHLOROACETIC ACID < 2.000 UG/L 2 05-14-2024 3 2024/08
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202311 2950 TTHM 20.500 1.000 UG/L 80 08-08-2023 3 2023/11 DUE NOW
CA1910234_DST_806 DISINFECTION BYPRODUCTS-202408 2452 TRICHLOROACETIC ACID 3.700 1.000 UG/L 1 05-14-2024 3 2024/08
CA1910234_DST_806 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.