Date:05-05-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1910154SYSTEM NAME:CITY OF SOUTH PASADENACOUNTY:LOS ANGELES 
SOURCE NO.:002SOURCE NAME:GRAVES WELL 02SOURCE CLASS:LGLASTATUS: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
CA1910154_002_002 SECONDARY/GP-202512 1928 ALKALINITY, BICARBONATE 190.000 2.000 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1919 CALCIUM 77.000 1.000 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-201805 1929 ALKALINITY, CARBONATE < 2.000 MG/L 05-19-2015 36 2018/05 DUE NOW
CA1910154_002_002 SECONDARY/GP-202512 1017 CHLORIDE 64.000 1.000 MG/L 500 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1905 COLOR < 2.000 UNITS 15 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-201805 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-19-2015 36 2018/05 DUE NOW
CA1910154_002_002 SECONDARY/GP-202512 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1915 HARDNESS, TOTAL (AS CACO3) 290.000 3.000 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-201805 1028 IRON < 100.000 UG/L 300 100 05-19-2015 36 2018/05 DUE NOW
CA1910154_002_002 SECONDARY/GP-202512 1031 MAGNESIUM 23.000 0.100 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-201805 1032 MANGANESE < 20.000 UG/L 50 20 05-19-2015 36 2018/05 DUE NOW
CA1910154_002_002 SECONDARY/GP-202512 1920 ODOR < 1.000 TON 3 1 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1925 PH 7.700 0.010 pH 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1050 SILVER < 0.200 UG/L 100 10 12-05-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1052 SODIUM 35.000 1.000 MG/L 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1064 CONDUCTIVITY @ 25 C UMHOS/CM 770.000 2.000 UMHO/CM 1600 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202512 1055 SULFATE 90.000 0.500 MG/L 500 .5 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-202608 1930 TDS 510.000 10.000 MG/L 1000 08-14-2023 36 2026/08
CA1910154_002_002 SECONDARY/GP-202512 0100 TURBIDITY 0.450 0.100 NTU 5 .1 12-20-2022 36 2025/12
CA1910154_002_002 SECONDARY/GP-201805 1095 ZINC < 50.000 UG/L 5000 50 05-19-2015 36 2018/05 DUE NOW
CA1910154_002_002 INORGANIC-202512 1002 ALUMINUM < 20.000 UG/L 1000 50 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1074 ANTIMONY, TOTAL < 0.500 UG/L 6 6 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1005 ARSENIC 0.560 0.500 UG/L 10 2 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1010 BARIUM 90.000 1.000 UG/L 1000 100 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1075 BERYLLIUM, TOTAL < 0.100 UG/L 4 1 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1015 CADMIUM < 0.500 UG/L 5 1 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1020 CHROMIUM 2.500 2.000 UG/L 50 10 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1024 CYANIDE < 5.000 UG/L 150 100 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1025 FLUORIDE 0.390 0.100 MG/L 2 .1 12-20-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1035 MERCURY < 1.000 UG/L 2 1 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1036 NICKEL < 2.000 UG/L 100 10 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202405 1039 PERCHLORATE 3.300 1.000 UG/L 6 1 04-02-2024 1 2024/05 DUE NOW
CA1910154_002_002 INORGANIC-202512 1045 SELENIUM < 0.500 UG/L 50 5 12-05-2022 36 2025/12
CA1910154_002_002 INORGANIC-202512 1085 THALLIUM, TOTAL < 0.200 UG/L 2 1 12-05-2022 36 2025/12
CA1910154_002_002 NITRATE/NITRITE-202405 1040 NITRATE 7.500 0.400 MG/L 10 .4 04-02-2024 1 2024/05 DUE NOW
CA1910154_002_002 NITRATE/NITRITE-202612 1041 NITRITE < 0.400 MG/L 1 .4 12-05-2023 36 2026/12
CA1910154_002_002 RADIOLOGICAL-203208 4109 GROSS ALPHA PARTICLE ACTIVITY 3.770 +/- 0.316 0.054 PCI/L 15 3 08-14-2023 108 2032/08
CA1910154_002_002 RADIOLOGICAL-202311 4020 RADIUM-226 < 1.000 PCI/L 1 08-14-2023 3 2023/11 DUE NOW
CA1910154_002_002 RADIOLOGICAL-203208 4030 RADIUM-228 < 1.000 PCI/L 1 08-14-2023 108 2032/08
CA1910154_002_002 RADIOLOGICAL-202908 4006 COMBINED URANIUM 5.500 +/- 0.000 0.130 PCI/L 20 1 08-14-2023 72 2029/08
CA1910154_002_002 REGULATED VOC-202504 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202411 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 11-20-2023 12 2024/11
CA1910154_002_002 REGULATED VOC-202504 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2990 BENZENE < 0.500 UG/L 1 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2996 STYRENE < 0.500 UG/L 100 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202405 2987 TETRACHLOROETHYLENE 11.000 0.500 UG/L 5 .5 04-02-2024 1 2024/05 DUE NOW
CA1910154_002_002 REGULATED VOC-202504 2991 TOLUENE < 0.500 UG/L 150 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202504 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 04-02-2024 12 2025/04
CA1910154_002_002 REGULATED VOC-202411 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 11-20-2023 12 2024/11
CA1910154_002_002 REGULATED SOC-202701 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 04-02-2024 33 2027/01
CA1910154_002_002 REGULATED SOC-202605 2063 2,3,7,8-TCDD < 0.005 NG/L 0.03 0.005 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2110 2,4,5-TP < 0.200 UG/L 50 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2105 2,4-D < 0.400 UG/L 70 10 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2051 LASSO (ALACHLOR) < 0.100 UG/L 2 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2050 ATRAZINE < 0.100 UG/L 1 .5 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2625 BENTAZON < 2.000 UG/L 18 2 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2046 CARBOFURAN < 2.000 UG/L 18 5 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2959 CHLORDANE < 0.100 UG/L .1 .1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2031 DALAPON < 0.400 UG/L 200 10 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2041 DINOSEB < 0.400 UG/L 7 2 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2032 DIQUAT < 4.000 UG/L 20 4 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2033 ENDOTHALL < 45.000 UG/L 100 45 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2005 ENDRIN < 0.010 UG/L 2 .1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2034 GLYPHOSATE < 5.000 UG/L 700 25 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2065 HEPTACHLOR < 0.010 UG/L .01 .01 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2274 HEXACHLOROBENZENE < 0.050 UG/L 1 .5 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2042 HEXACHLOROCYCLOPENTADIENE < 0.050 UG/L 50 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2010 BHC-GAMMA < 0.010 UG/L .2 .2 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2015 METHOXYCHLOR < 0.010 UG/L 30 10 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2626 MOLINATE < 0.100 UG/L 20 2 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2036 OXAMYL < 2.000 UG/L 50 20 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2040 PICLORAM < 0.600 UG/L 500 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2037 SIMAZINE < 0.100 UG/L 4 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2727 THIOBENCARB (BOLERO) < 0.100 UG/L 70 1 08-14-2023 33 2026/05
CA1910154_002_002 REGULATED SOC-202605 2020 TOXAPHENE < 1.000 UG/L 3 1 08-14-2023 33 2026/05
PS Codes Group Name Analyte Number Analyte Name Detected Level Less Than RL Unit MCL DLR Last Sampled Frequency Next Due Notes

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.