Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4010002SYSTEM NAME:ATASCADERO MUTUAL WATER COCOUNTY:SAN LUIS OBISPO 
SOURCE NO.:007SOURCE NAME:WELL 05SOURCE CLASS:LARGSTATUS: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
CA4010002_007_007 SECONDARY/GP-202207 1928 ALKALINITY, BICARBONATE 310.000 MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1919 CALCIUM 90.000 MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1929 ALKALINITY, CARBONATE < MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202410 1017 CHLORIDE 180.000 1.000 MG/L 500 10-14-2021 36 2024/10
CA4010002_007_007 SECONDARY/GP-202207 1905 COLOR 3.000 UNITS 15 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1022 COPPER, FREE < 50.000 UG/L 1000 50 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 2905 FOAMING AGENTS (SURFACTANTS) < MG/L .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1915 HARDNESS, TOTAL (AS CACO3) 400.000 MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1021 HYDROXIDE AS CALCIUM CARBONATE < MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1028 IRON < 100.000 UG/L 300 100 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1031 MAGNESIUM 42.000 MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1032 MANGANESE < 20.000 UG/L 50 20 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1920 ODOR 1.000 1.000 TON 3 1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1925 PH 7.400 pH 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1050 SILVER < 10.000 UG/L 100 10 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1052 SODIUM 87.000 MG/L 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1064 CONDUCTIVITY @ 25 C UMHOS/CM 1000.000 UMHO/CM 1600 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1055 SULFATE 120.000 0.500 MG/L 500 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202410 1930 TDS 840.000 5.000 MG/L 1000 10-14-2021 36 2024/10
CA4010002_007_007 SECONDARY/GP-202207 0100 TURBIDITY < 0.100 NTU 5 .1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 SECONDARY/GP-202207 1095 ZINC < 50.000 UG/L 5000 50 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1002 ALUMINUM < 50.000 UG/L 1000 50 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1005 ARSENIC < 2.000 UG/L 10 2 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1010 BARIUM < 100.000 UG/L 1000 100 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1015 CADMIUM < 1.000 UG/L 5 1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1020 CHROMIUM < 10.000 UG/L 50 10 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1025 FLUORIDE 0.290 0.100 MG/L 2 .1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1030 LEAD < 5.000 UG/L 5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1035 MERCURY < 1.000 UG/L 2 1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1036 NICKEL < 10.000 UG/L 100 10 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1039 PERCHLORATE < 4.000 UG/L 6 4 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1045 SELENIUM < 5.000 UG/L 50 5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 INORGANIC-202207 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 NITRATE/NITRITE-202210 1040 NITRATE 2.000 0.400 MG/L 10 .4 10-14-2021 12 2022/10 DUE NOW
CA4010002_007_007 NITRATE/NITRITE-202207 1041 NITRITE < 0.400 MG/L 1 .4 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 RADIOLOGICAL-202207 4109 GROSS ALPHA PARTICLE ACTIVITY 5.800 +/- 1.000 0.600 PCI/L 15 3 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2990 BENZENE < 0.500 UG/L 1 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2996 STYRENE < 0.500 UG/L 100 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2991 TOLUENE < 0.500 UG/L 150 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED VOC-202207 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 07-18-2019 36 2022/07 DUE NOW
CA4010002_007_007 REGULATED SOC-202409 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 09-14-2021 36 2024/09
CA4010002_007_007 REGULATED SOC-202307 2050 ATRAZINE < 0.500 UG/L 1 .5 07-10-2014 108 2023/07 DUE NOW
CA4010002_007_007 REGULATED SOC-202307 2037 SIMAZINE < 1.000 UG/L 4 1 07-10-2014 108 2023/07 DUE NOW
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.