Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4301013SYSTEM NAME:ROCKWOOD ESTATES MUTUAL WATER COMPANYCOUNTY:SANTA CLARA 
SOURCE NO.:004SOURCE NAME:WELL 06SOURCE CLASS:CSGSSTATUS: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
CA4301013_004_004 SECONDARY/GP-202608 1928 ALKALINITY, BICARBONATE 330.000 3.000 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1919 CALCIUM 7.600 0.100 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1929 ALKALINITY, CARBONATE 43.000 3.000 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1017 CHLORIDE 8.000 1.000 MG/L 500 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1905 COLOR < 5.000 UNITS 15 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1022 COPPER, FREE < 5.000 UG/L 1000 50 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1915 HARDNESS, TOTAL (AS CACO3) 390.000 0.410 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1021 HYDROXIDE AS CALCIUM CARBONATE < 3.000 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1028 IRON < 30.000 UG/L 300 100 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1031 MAGNESIUM 89.000 0.100 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1032 MANGANESE < 10.000 UG/L 50 20 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1920 ODOR < 1.000 TON 3 1 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1925 PH 8.600 pH 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1050 SILVER < 10.000 UG/L 100 10 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1052 SODIUM 7.600 1.000 MG/L 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1064 CONDUCTIVITY @ 25 C UMHOS/CM 670.000 1.000 UMHO/CM 1600 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1055 SULFATE 15.000 1.000 MG/L 500 .5 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202609 1930 TDS 370.000 5.000 MG/L 1000 09-19-2023 36 2026/09
CA4301013_004_004 SECONDARY/GP-202608 0100 TURBIDITY 2.200 0.100 NTU 5 .1 08-28-2023 36 2026/08
CA4301013_004_004 SECONDARY/GP-202608 1095 ZINC < 50.000 UG/L 5000 50 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1002 ALUMINUM < 50.000 UG/L 1000 50 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1074 ANTIMONY, TOTAL < 2.000 UG/L 6 6 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1005 ARSENIC < 2.000 UG/L 10 2 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202311 1094 ASBESTOS 101.000 0.200 MFL 7 .2 08-29-2023 3 2023/11 DUE NOW
CA4301013_004_004 INORGANIC-202608 1010 BARIUM 350.000 50.000 UG/L 1000 100 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1015 CADMIUM < 1.000 UG/L 5 1 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1020 CHROMIUM < 10.000 UG/L 50 10 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1024 CYANIDE < 5.000 UG/L 150 100 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1025 FLUORIDE < 0.100 MG/L 2 .1 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1035 MERCURY < 0.200 UG/L 2 1 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1036 NICKEL 13.000 10.000 UG/L 100 10 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1039 PERCHLORATE < 0.500 UG/L 6 2 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1045 SELENIUM < 2.000 UG/L 50 5 08-28-2023 36 2026/08
CA4301013_004_004 INORGANIC-202608 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 08-28-2023 36 2026/08
CA4301013_004_004 NITRATE/NITRITE-202408 1040 NITRATE < 0.230 MG/L 10 .4 08-28-2023 12 2024/08
CA4301013_004_004 NITRATE/NITRITE-202608 1041 NITRITE < 0.050 MG/L 1 .4 08-28-2023 36 2026/08
CA4301013_004_004 RADIOLOGICAL-202702 4109 GROSS ALPHA PARTICLE ACTIVITY 0.310 +/- 0.706 1.000 PCI/L 15 3 02-12-2018 108 2027/02
CA4301013_004_004 REGULATED VOC-202608 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2990 BENZENE < 0.500 UG/L 1 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2251 METHYL TERT-BUTYL ETHER < 0.500 UG/L 13 3 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2996 STYRENE < 0.500 UG/L 100 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2991 TOLUENE < 0.500 UG/L 150 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED VOC-202608 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 08-28-2023 36 2026/08
CA4301013_004_004 REGULATED SOC-202402 2414 1,2,3-TRICHLOROPROPANE < UG/L 0.005 02-04-2021 36 2024/02 DUE NOW
CA4301013_004_004 REGULATED SOC-202612 2105 2,4-D < 10.000 UG/L 70 10 12-12-2017 108 2026/12
CA4301013_004_004 REGULATED SOC-202612 2050 ATRAZINE < 0.500 UG/L 1 .5 12-12-2017 108 2026/12
CA4301013_004_004 REGULATED SOC-202612 2037 SIMAZINE < 1.000 UG/L 4 1 12-12-2017 108 2026/12
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.