Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4310001SYSTEM NAME:CWSC LOS ALTOS SUBURBANCOUNTY:SANTA CLARA 
SOURCE NO.:008SOURCE NAME:WELL 015-01SOURCE CLASS:CLGSSTATUS: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
CA4310001_008_008 SECONDARY/GP-202407 1928 ALKALINITY, BICARBONATE 220.000 MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1919 CALCIUM 63.000 MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1929 ALKALINITY, CARBONATE < MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1017 CHLORIDE 88.000 MG/L 500 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1905 COLOR < UNITS 15 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1915 HARDNESS, TOTAL (AS CACO3) 270.000 MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1028 IRON < 100.000 UG/L 300 100 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1031 MAGNESIUM 28.000 MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1032 MANGANESE < 20.000 UG/L 50 20 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1920 ODOR < 1.000 TON 3 1 07-13-2021 36 2024/07
CA4310001_008_008 GENERAL NON CHAP 15-202207 C253 PH, FIELD 7.100 pH 07-16-2019 36 2022/07 DUE NOW
CA4310001_008_008 SECONDARY/GP-202407 1050 SILVER < 10.000 UG/L 100 10 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1052 SODIUM 31.000 MG/L 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1064 CONDUCTIVITY @ 25 C UMHOS/CM 710.000 UMHO/CM 1600 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1055 SULFATE 25.000 0.500 MG/L 500 .5 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1930 TDS 390.000 MG/L 1000 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 0100 TURBIDITY 0.420 0.100 NTU 5 .1 07-13-2021 36 2024/07
CA4310001_008_008 SECONDARY/GP-202407 1095 ZINC < 50.000 UG/L 5000 50 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1002 ALUMINUM < 50.000 UG/L 1000 50 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1005 ARSENIC < 2.000 UG/L 10 2 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1094 ASBESTOS < 0.200 MFL 7 .2 07-07-2015 108 2024/07
CA4310001_008_008 INORGANIC-202407 1010 BARIUM 130.000 100.000 UG/L 1000 100 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1015 CADMIUM < 1.000 UG/L 5 1 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1020 CHROMIUM < 10.000 UG/L 50 10 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1024 CYANIDE < 100.000 UG/L 150 100 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1025 FLUORIDE 0.140 0.100 MG/L 2 .1 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1035 MERCURY < 1.000 UG/L 2 1 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1036 NICKEL < 10.000 UG/L 100 10 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1039 PERCHLORATE < 2.000 UG/L 6 2 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1045 SELENIUM < 5.000 UG/L 50 5 07-13-2021 36 2024/07
CA4310001_008_008 INORGANIC-202407 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-13-2021 36 2024/07
CA4310001_008_008 NITRATE/NITRITE-202504 1040 NITRATE 8.000 0.400 MG/L 10 .4 04-03-2024 12 2025/04
CA4310001_008_008 NITRATE/NITRITE-202407 1041 NITRITE < 0.400 MG/L 1 .4 07-13-2021 36 2024/07
CA4310001_008_008 RADIOLOGICAL-202807 4109 GROSS ALPHA PARTICLE ACTIVITY < 0.200 PCI/L 15 3 07-16-2019 108 2028/07
CA4310001_008_008 REGULATED VOC-202412 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2990 BENZENE < 0.500 UG/L 1 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2996 STYRENE < 0.500 UG/L 100 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2991 TOLUENE < 0.500 UG/L 150 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2218 TRICHLOROFLUOROMETHANE < 0.500 UG/L 150 5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2904 TRICHLOROTRIFLUOROETHANE < 0.500 UG/L 1200 10 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2976 VINYL CHLORIDE < 0.300 UG/L .5 .5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED VOC-202412 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 12-07-2021 36 2024/12
CA4310001_008_008 REGULATED SOC-202610 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 10-25-2023 36 2026/10
CA4310001_008_008 REGULATED SOC-202607 2063 2,3,7,8-TCDD < 0.005 NG/L 0.03 0.005 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2110 2,4,5-TP < 1.000 UG/L 50 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2105 2,4-D < 10.000 UG/L 70 10 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2050 ATRAZINE < 0.500 UG/L 1 .5 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2625 BENTAZON < 2.000 UG/L 18 2 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2046 CARBOFURAN < 5.000 UG/L 18 5 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2959 CHLORDANE < 0.100 UG/L .1 .1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2031 DALAPON < 10.000 UG/L 200 10 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202701 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 04-17-2024 33 2027/01
CA4310001_008_008 REGULATED SOC-202607 2041 DINOSEB < 2.000 UG/L 7 2 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2032 DIQUAT < 4.000 UG/L 20 4 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2033 ENDOTHALL < 45.000 UG/L 100 45 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2005 ENDRIN < 0.100 UG/L 2 .1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202701 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 04-17-2024 33 2027/01
CA4310001_008_008 REGULATED SOC-202607 2034 GLYPHOSATE < 25.000 UG/L 700 25 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2065 HEPTACHLOR < 0.010 UG/L .01 .01 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2274 HEXACHLOROBENZENE < 0.500 UG/L 1 .5 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2042 HEXACHLOROCYCLOPENTADIENE < 1.000 UG/L 50 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2010 BHC-GAMMA < 0.200 UG/L .2 .2 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2015 METHOXYCHLOR < 10.000 UG/L 30 10 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2626 MOLINATE < 2.000 UG/L 20 2 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2036 OXAMYL < 20.000 UG/L 50 20 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2040 PICLORAM < 1.000 UG/L 500 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2037 SIMAZINE < 1.000 UG/L 4 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 10-17-2023 33 2026/07
CA4310001_008_008 REGULATED SOC-202607 2020 TOXAPHENE < 1.000 UG/L 3 1 10-17-2023 33 2026/07
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.