Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4010002SYSTEM NAME:ATASCADERO MUTUAL WATER COCOUNTY:SAN LUIS OBISPO 
SOURCE NO.:016SOURCE NAME:WELL 16SOURCE 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_016_016 SECONDARY/GP-202409 1928 ALKALINITY, BICARBONATE 220.000 5.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1919 CALCIUM 50.000 1.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1929 ALKALINITY, CARBONATE < 5.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202703 1017 CHLORIDE 48.000 1.000 MG/L 500 03-14-2024 36 2027/03
CA4010002_016_016 SECONDARY/GP-202109 1905 COLOR < UNITS 15 09-13-2018 36 2021/09 DUE NOW
CA4010002_016_016 SECONDARY/GP-202409 1022 COPPER, FREE < 50.000 UG/L 1000 50 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1915 HARDNESS, TOTAL (AS CACO3) 220.000 6.600 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1028 IRON < 100.000 UG/L 300 100 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1031 MAGNESIUM 24.000 1.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1032 MANGANESE < 20.000 UG/L 50 20 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202109 1920 ODOR 1.000 1.000 TON 3 1 09-13-2018 36 2021/09 DUE NOW
CA4010002_016_016 SECONDARY/GP-202703 1925 PH 7.400 pH 03-21-2024 36 2027/03
CA4010002_016_016 SECONDARY/GP-202409 1050 SILVER < 10.000 UG/L 100 10 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1052 SODIUM 43.000 1.000 MG/L 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1064 CONDUCTIVITY @ 25 C UMHOS/CM 570.000 2.000 UMHO/CM 1600 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202409 1055 SULFATE 66.000 0.500 MG/L 500 .5 09-14-2021 36 2024/09
CA4010002_016_016 SECONDARY/GP-202703 1930 TDS 430.000 5.000 MG/L 1000 03-14-2024 36 2027/03
CA4010002_016_016 SECONDARY/GP-202109 0100 TURBIDITY < 0.100 NTU 5 .1 09-13-2018 36 2021/09 DUE NOW
CA4010002_016_016 SECONDARY/GP-202409 1095 ZINC < 50.000 UG/L 5000 50 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1002 ALUMINUM < 50.000 UG/L 1000 50 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1005 ARSENIC < 2.000 UG/L 10 2 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1010 BARIUM < 100.000 UG/L 1000 100 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1015 CADMIUM < 1.000 UG/L 5 1 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1020 CHROMIUM < 10.000 UG/L 50 10 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1025 FLUORIDE 0.260 0.100 MG/L 2 .1 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1030 LEAD < 5.000 UG/L 5 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1035 MERCURY < 1.000 UG/L 2 1 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1036 NICKEL < 10.000 UG/L 100 10 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1039 PERCHLORATE < 2.000 UG/L 6 2 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1045 SELENIUM < 5.000 UG/L 50 5 09-14-2021 36 2024/09
CA4010002_016_016 INORGANIC-202409 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 09-14-2021 36 2024/09
CA4010002_016_016 NITRATE/NITRITE-202503 1040 NITRATE 1.400 0.400 MG/L 10 .4 03-14-2024 12 2025/03
CA4010002_016_016 NITRATE/NITRITE-202409 1041 NITRITE < 0.400 MG/L 1 .4 09-14-2021 36 2024/09
CA4010002_016_016 RADIOLOGICAL-203005 4109 GROSS ALPHA PARTICLE ACTIVITY < 0.600 PCI/L 15 3 05-04-2021 108 2030/05
CA4010002_016_016 REGULATED VOC-202409 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2990 BENZENE < 0.500 UG/L 1 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2996 STYRENE < 0.500 UG/L 100 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2991 TOLUENE < 0.500 UG/L 150 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED VOC-202409 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 09-14-2021 36 2024/09
CA4010002_016_016 REGULATED SOC-202702 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 02-13-2024 36 2027/02
CA4010002_016_016 REGULATED SOC-203302 2050 ATRAZINE < 0.500 UG/L 1 .5 02-13-2024 108 2033/02
CA4010002_016_016 REGULATED SOC-203302 2037 SIMAZINE < 1.000 UG/L 4 1 02-13-2024 108 2033/02
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.