Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4110009SYSTEM NAME:CALIFORNIA WATER SERVICE-S SAN FRANCISCOCOUNTY:SAN MATEO 
SOURCE NO.:905SOURCE NAME:STATION ...*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
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201206 2943 BROMODICHLOROMETHANE 1.960 1.000 UG/L 80 1 03-13-2012 3 2012/06 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201206 2942 BROMOFORM 0.780 1.000 UG/L 80 1 03-13-2012 3 2012/06 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201206 2941 CHLOROFORM 19.650 1.000 UG/L 80 1 03-13-2012 3 2012/06 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2454 DIBROMOACETIC ACID 2.200 1.000 UG/L 1 09-11-2013 3 2013/12 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201206 2944 DIBROMOCHLOROMETHANE 0.960 1.000 UG/L 80 1 03-13-2012 3 2012/06 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2451 DICHLOROACETIC ACID 13.000 1.000 UG/L 1 09-11-2013 3 2013/12 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2456 TOTAL HALOACETIC ACIDS (HAA5) 26.000 UG/L 60 09-11-2013 3 2013/12 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2453 MONOBROMOACETIC ACID < 1.000 UG/L 1 09-11-2013 3 2013/12 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2450 MONOCHLOROACETIC ACID < 2.000 UG/L 2 09-11-2013 3 2013/12 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201206 2950 TTHM 23.500 UG/L 80 03-13-2012 3 2012/06 DUE NOW
CA4110009_DST_905 DISINFECTION BYPRODUCTS-201312 2452 TRICHLOROACETIC ACID 11.000 1.000 UG/L 1 09-11-2013 3 2013/12 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.