Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:0710004SYSTEM NAME:BRENTWOODCOUNTY:CONTRA COSTA 
SOURCE NO.:012SOURCE NAME:WELL 13SOURCE CLASS:STBYSTATUS: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
CA0710004_012_012 SECONDARY/GP-203212 1994 AGGRESSIVE INDEX 12.000 0.100 AGGR 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1928 ALKALINITY, BICARBONATE 190.000 2.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1919 CALCIUM 63.000 1.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1929 ALKALINITY, CARBONATE < 2.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1017 CHLORIDE 120.000 2.500 MG/L 500 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1905 COLOR < 2.000 UNITS 15 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1022 COPPER, FREE < 50.000 UG/L 1000 50 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 2905 FOAMING AGENTS (SURFACTANTS) 0.100 0.100 MG/L .5 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1915 HARDNESS, TOTAL (AS CACO3) 260.000 3.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1021 HYDROXIDE AS CALCIUM CARBONATE < 2.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1028 IRON 120.000 10.000 UG/L 300 100 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1031 MAGNESIUM 24.000 0.100 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1032 MANGANESE 16.000 2.000 UG/L 50 20 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1920 ODOR 2.000 1.000 TON 3 1 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1925 PH 8.000 pH 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1050 SILVER < 0.500 UG/L 100 10 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1052 SODIUM 92.000 1.000 MG/L 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1064 CONDUCTIVITY @ 25 C UMHOS/CM 980.000 2.000 UMHO/CM 1600 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1055 SULFATE 110.000 0.500 MG/L 500 .5 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1930 TDS 590.000 20.000 MG/L 1000 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 0100 TURBIDITY 0.500 0.100 NTU 5 .1 12-06-2023 108 2032/12
CA0710004_012_012 SECONDARY/GP-203212 1095 ZINC < 20.000 UG/L 5000 50 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1002 ALUMINUM < 50.000 UG/L 1000 50 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1005 ARSENIC < 2.000 UG/L 10 2 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1010 BARIUM < 100.000 UG/L 1000 100 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1015 CADMIUM < 1.000 UG/L 5 1 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1020 CHROMIUM < 10.000 UG/L 50 10 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1025 FLUORIDE 0.150 0.100 MG/L 2 .1 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203005 1030 LEAD < 5.000 UG/L 5 05-17-2021 108 2030/05
CA0710004_012_012 INORGANIC-203212 1035 MERCURY < 1.000 UG/L 2 1 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1036 NICKEL < 10.000 UG/L 100 10 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1039 PERCHLORATE < 2.000 UG/L 6 2 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1045 SELENIUM < 5.000 UG/L 50 5 12-06-2023 108 2032/12
CA0710004_012_012 INORGANIC-203212 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 12-06-2023 108 2032/12
CA0710004_012_012 NITRATE/NITRITE-203212 1040 NITRATE 3.400 0.400 MG/L 10 .4 12-06-2023 108 2032/12
CA0710004_012_012 NITRATE/NITRITE-203212 1041 NITRITE < 0.400 MG/L 1 .4 12-06-2023 108 2032/12
CA0710004_012_012 RADIOLOGICAL-203212 4109 GROSS ALPHA PARTICLE ACTIVITY 3.110 +/- 1.670 2.480 PCI/L 15 3 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203005 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-17-2021 108 2030/05
CA0710004_012_012 REGULATED VOC-203212 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2990 BENZENE < 0.500 UG/L 1 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2996 STYRENE < 0.500 UG/L 100 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2991 TOLUENE < 0.500 UG/L 150 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203212 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED VOC-203005 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 05-17-2021 108 2030/05
CA0710004_012_012 REGULATED SOC-203212 2063 2,3,7,8-TCDD < 0.005 NG/L 0.03 0.005 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2110 2,4,5-TP < 1.000 UG/L 50 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2105 2,4-D < 10.000 UG/L 70 10 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2051 LASSO (ALACHLOR) < 1.000 UG/L 2 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2050 ATRAZINE < 0.500 UG/L 1 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2625 BENTAZON < 2.000 UG/L 18 2 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2306 BENZO(A)PYRENE < 0.100 UG/L .2 .1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2046 CARBOFURAN < 5.000 UG/L 18 5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2959 CHLORDANE < 0.100 UG/L .1 .1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2031 DALAPON < 10.000 UG/L 200 10 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2035 DI(2-ETHYLHEXYL) ADIPATE < 5.000 UG/L 400 5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2039 DI(2-ETHYLHEXYL) PHTHALATE < 3.000 UG/L 4 3 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2931 1,2-DIBROMO-3-CHLOROPROPANE < 0.010 UG/L .2 .01 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2041 DINOSEB < 2.000 UG/L 7 2 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2032 DIQUAT < 4.000 UG/L 20 4 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2033 ENDOTHALL < 45.000 UG/L 100 45 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2005 ENDRIN < 0.100 UG/L 2 .1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2946 ETHYLENE DIBROMIDE < 0.020 UG/L .05 .02 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2034 GLYPHOSATE < 25.000 UG/L 700 25 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2065 HEPTACHLOR < 0.010 UG/L .01 .01 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2067 HEPTACHLOR EPOXIDE < 0.010 UG/L .01 .01 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2274 HEXACHLOROBENZENE < 0.500 UG/L 1 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2042 HEXACHLOROCYCLOPENTADIENE < 1.000 UG/L 50 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2010 BHC-GAMMA < 0.200 UG/L .2 .2 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2015 METHOXYCHLOR < 10.000 UG/L 30 10 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2626 MOLINATE < 2.000 UG/L 20 2 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2036 OXAMYL < 20.000 UG/L 50 20 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2326 PENTACHLOROPHENOL < 0.200 UG/L 1 .2 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2040 PICLORAM < 1.000 UG/L 500 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2383 TOTAL POLYCHLORINATED BIPHENYLS (PCB) < 0.500 UG/L .5 .5 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2037 SIMAZINE < 1.000 UG/L 4 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 12-06-2023 108 2032/12
CA0710004_012_012 REGULATED SOC-203212 2020 TOXAPHENE < 1.000 UG/L 3 1 12-06-2023 108 2032/12
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.