Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4310001SYSTEM NAME:CWSC LOS ALTOS SUBURBANCOUNTY:SANTA CLARA 
SOURCE NO.:007SOURCE NAME:WELL 006-02SOURCE 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_007_007 SECONDARY/GP-202408 1928 ALKALINITY, BICARBONATE 310.000 3.000 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1919 CALCIUM 110.000 0.100 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1929 ALKALINITY, CARBONATE < 3.000 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1017 CHLORIDE 72.000 1.000 MG/L 500 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1905 COLOR < 5.000 UNITS 15 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202609 1022 COPPER, FREE 1.600 1.000 UG/L 1000 50 09-13-2023 36 2026/09
CA4310001_007_007 SECONDARY/GP-202408 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1915 HARDNESS, TOTAL (AS CACO3) 450.000 0.410 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1028 IRON < 30.000 UG/L 300 100 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1031 MAGNESIUM 41.000 0.100 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202609 1032 MANGANESE < 1.000 UG/L 50 20 09-13-2023 36 2026/09
CA4310001_007_007 SECONDARY/GP-202408 1920 ODOR < 1.000 TON 3 1 08-24-2021 36 2024/08
CA4310001_007_007 GENERAL NON CHAP 15-202408 C253 PH, FIELD 7.850 pH 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1050 SILVER < 10.000 UG/L 100 10 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1052 SODIUM 28.000 1.000 MG/L 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202702 1064 CONDUCTIVITY @ 25 C UMHOS/CM 940.000 1.000 UMHO/CM 1600 02-12-2024 36 2027/02
CA4310001_007_007 SECONDARY/GP-202408 1055 SULFATE 88.000 1.000 MG/L 500 .5 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 1930 TDS 590.000 5.000 MG/L 1000 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202408 0100 TURBIDITY 0.210 0.100 NTU 5 .1 08-24-2021 36 2024/08
CA4310001_007_007 SECONDARY/GP-202609 1095 ZINC 4.200 1.000 UG/L 5000 50 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1002 ALUMINUM < 50.000 UG/L 1000 50 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1074 ANTIMONY, TOTAL < 1.000 UG/L 6 6 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1005 ARSENIC < 1.000 UG/L 10 2 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202508 1094 ASBESTOS < 0.200 MFL 7 .2 08-03-2016 108 2025/08
CA4310001_007_007 INORGANIC-202408 1010 BARIUM 200.000 50.000 UG/L 1000 100 08-24-2021 36 2024/08
CA4310001_007_007 INORGANIC-202609 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1015 CADMIUM < 1.000 UG/L 5 1 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1020 CHROMIUM 4.900 1.000 UG/L 50 10 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202408 1024 CYANIDE < 5.000 UG/L 150 100 08-24-2021 36 2024/08
CA4310001_007_007 INORGANIC-202408 1025 FLUORIDE 0.110 0.100 MG/L 2 .1 08-24-2021 36 2024/08
CA4310001_007_007 INORGANIC-202408 1035 MERCURY < 0.200 UG/L 2 1 08-24-2021 36 2024/08
CA4310001_007_007 INORGANIC-202609 1036 NICKEL 1.400 1.000 UG/L 100 10 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202702 1039 PERCHLORATE < 1.000 UG/L 6 1 02-12-2024 36 2027/02
CA4310001_007_007 INORGANIC-202609 1045 SELENIUM 4.500 1.000 UG/L 50 5 09-13-2023 36 2026/09
CA4310001_007_007 INORGANIC-202609 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 09-13-2023 36 2026/09
CA4310001_007_007 NITRATE/NITRITE-202407 1040 NITRATE 6.500 0.400 MG/L 10 .4 04-03-2024 3 2024/07
CA4310001_007_007 NITRATE/NITRITE-202408 1041 NITRITE < 0.050 MG/L 1 .4 08-24-2021 36 2024/08
CA4310001_007_007 RADIOLOGICAL-203212 4109 GROSS ALPHA PARTICLE ACTIVITY 1.380 +/- 0.606 0.799 PCI/L 15 3 12-20-2023 108 2032/12
CA4310001_007_007 REGULATED VOC-202704 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2990 BENZENE < 0.500 UG/L 1 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2996 STYRENE < 0.500 UG/L 100 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2991 TOLUENE < 0.500 UG/L 150 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED VOC-202704 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 04-17-2024 36 2027/04
CA4310001_007_007 REGULATED SOC-202701 2414 1,2,3-TRICHLOROPROPANE < 0.002 UG/L 0.005 04-24-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2063 2,3,7,8-TCDD < 0.005 NG/L 0.03 0.005 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2110 2,4,5-TP < 1.000 UG/L 50 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2105 2,4-D < 10.000 UG/L 70 10 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2050 ATRAZINE < 0.500 UG/L 1 .5 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2625 BENTAZON < 2.000 UG/L 18 2 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2046 CARBOFURAN < 2.000 UG/L 18 5 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2959 CHLORDANE < 0.100 UG/L .1 .1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2031 DALAPON < 10.000 UG/L 200 10 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2041 DINOSEB < 2.000 UG/L 7 2 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2032 DIQUAT < 4.000 UG/L 20 4 04-24-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2033 ENDOTHALL < 45.000 UG/L 100 45 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2005 ENDRIN < 0.100 UG/L 2 .1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202610 2034 GLYPHOSATE < 25.000 UG/L 700 25 01-22-2024 33 2026/10
CA4310001_007_007 REGULATED SOC-202701 2065 HEPTACHLOR < 0.010 UG/L .01 .01 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2274 HEXACHLOROBENZENE < 0.500 UG/L 1 .5 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2042 HEXACHLOROCYCLOPENTADIENE < 1.000 UG/L 50 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2010 BHC-GAMMA < 0.200 UG/L .2 .2 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2015 METHOXYCHLOR < 10.000 UG/L 30 10 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2626 MOLINATE < 2.000 UG/L 20 2 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2036 OXAMYL < 2.000 UG/L 50 20 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2040 PICLORAM < 1.000 UG/L 500 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2037 SIMAZINE < 1.000 UG/L 4 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 04-17-2024 33 2027/01
CA4310001_007_007 REGULATED SOC-202701 2020 TOXAPHENE < 1.000 UG/L 3 1 04-17-2024 33 2027/01
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.