Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:3010100SYSTEM NAME:CITY OF LA PALMACOUNTY:ORANGE 
SOURCE NO.:006SOURCE NAME:WALKER WELL 007SOURCE CLASS:OCWDSTATUS: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
CA3010100_006_006 SECONDARY/GP-202604 1928 ALKALINITY, BICARBONATE 221.000 1.200 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1919 CALCIUM 45.100 0.500 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1929 ALKALINITY, CARBONATE < 0.600 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1017 CHLORIDE 18.900 0.500 MG/L 500 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1905 COLOR < 3.000 UNITS 15 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1022 COPPER, FREE < 1.000 UG/L 1000 50 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 2905 FOAMING AGENTS (SURFACTANTS) < 0.020 MG/L .5 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1915 HARDNESS, TOTAL (AS CACO3) 155.000 1.000 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202703 1028 IRON 82.000 10.000 UG/L 300 100 03-04-2024 36 2027/03
CA3010100_006_006 SECONDARY/GP-202604 1031 MAGNESIUM 10.300 0.500 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202503 1032 MANGANESE 53.000 10.000 UG/L 50 20 03-04-2024 12 2025/03
CA3010100_006_006 SECONDARY/GP-202604 1920 ODOR 1.000 TON 3 1 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1925 PH 8.000 1.000 pH 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1050 SILVER < 1.000 UG/L 100 10 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1052 SODIUM 55.400 0.500 MG/L 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1064 CONDUCTIVITY @ 25 C UMHOS/CM 501.000 1.000 UMHO/CM 1600 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1055 SULFATE 56.500 0.500 MG/L 500 .5 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1930 TDS 318.000 2.500 MG/L 1000 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 0100 TURBIDITY 0.150 0.100 NTU 5 .1 04-03-2023 36 2026/04
CA3010100_006_006 SECONDARY/GP-202604 1095 ZINC < 5.000 UG/L 5000 50 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1002 ALUMINUM < 5.000 UG/L 1000 50 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202501 1005 ARSENIC 5.200 1.000 UG/L 10 2 01-02-2024 12 2025/01
CA3010100_006_006 INORGANIC-202604 1010 BARIUM 104.000 1.000 UG/L 1000 100 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1015 CADMIUM < 1.000 UG/L 5 1 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1020 CHROMIUM < 1.000 UG/L 50 10 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1025 FLUORIDE 0.440 0.100 MG/L 2 .1 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1035 MERCURY < 1.000 UG/L 2 1 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1036 NICKEL 1.200 1.000 UG/L 100 10 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202701 1039 PERCHLORATE < 1.000 UG/L 6 1 01-02-2024 36 2027/01
CA3010100_006_006 INORGANIC-202604 1045 SELENIUM < 1.000 UG/L 50 5 04-03-2023 36 2026/04
CA3010100_006_006 INORGANIC-202604 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 04-03-2023 36 2026/04
CA3010100_006_006 NITRATE/NITRITE-202501 1040 NITRATE < 0.100 MG/L 10 .4 01-02-2024 12 2025/01
CA3010100_006_006 NITRATE/NITRITE-202701 1041 NITRITE < 0.002 MG/L 1 .4 01-02-2024 36 2027/01
CA3010100_006_006 RADIOLOGICAL-202502 4109 GROSS ALPHA PARTICLE ACTIVITY 4.920 +/- 1.810 1.300 PCI/L 15 3 02-04-2019 72 2025/02
CA3010100_006_006 RADIOLOGICAL-201905 4020 RADIUM-226 0.083 +/- 0.086 0.300 PCI/L 1 02-04-2019 3 2019/05 DUE NOW
CA3010100_006_006 RADIOLOGICAL-202802 4030 RADIUM-228 < 0.400 PCI/L 1 02-04-2019 108 2028/02
CA3010100_006_006 RADIOLOGICAL-202802 4006 COMBINED URANIUM 0.872 +/- 0.000 1.000 PCI/L 20 1 02-04-2019 108 2028/02
CA3010100_006_006 REGULATED VOC-202501 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2990 BENZENE < 0.500 UG/L 1 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2251 METHYL TERT-BUTYL ETHER < 0.200 UG/L 13 3 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2996 STYRENE < 0.500 UG/L 100 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2991 TOLUENE < 0.500 UG/L 150 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED VOC-202501 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 01-02-2024 12 2025/01
CA3010100_006_006 REGULATED SOC-203104 2727 THIOBENCARB (BOLERO) < 0.100 UG/L 70 1 04-04-2022 108 2031/04
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.