Date:05-18-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:4010002SYSTEM NAME:ATASCADERO MUTUAL WATER COCOUNTY:SAN LUIS OBISPO 
SOURCE NO.:006SOURCE NAME:WELL 04SOURCE 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_006_006 SECONDARY/GP-202505 1928 ALKALINITY, BICARBONATE 200.000 5.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1919 CALCIUM 49.000 1.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1929 ALKALINITY, CARBONATE < 5.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202607 1017 CHLORIDE 26.000 1.000 MG/L 500 07-13-2023 36 2026/07
CA4010002_006_006 SECONDARY/GP-202205 1905 COLOR < UNITS 15 05-09-2019 36 2022/05 DUE NOW
CA4010002_006_006 SECONDARY/GP-202505 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1915 HARDNESS, TOTAL (AS CACO3) 230.000 6.600 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1021 HYDROXIDE AS CALCIUM CARBONATE < 5.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1028 IRON < 100.000 UG/L 300 100 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1031 MAGNESIUM 25.000 1.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1032 MANGANESE < 20.000 UG/L 50 20 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202205 1920 ODOR 1.000 1.000 TON 3 1 05-09-2019 36 2022/05 DUE NOW
CA4010002_006_006 SECONDARY/GP-202506 1925 PH 7.100 pH 06-09-2022 36 2025/06
CA4010002_006_006 SECONDARY/GP-202505 1050 SILVER < 10.000 UG/L 100 10 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1052 SODIUM 39.000 1.000 MG/L 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1064 CONDUCTIVITY @ 25 C UMHOS/CM 440.000 2.000 UMHO/CM 1600 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202505 1055 SULFATE 76.000 0.500 MG/L 500 .5 05-17-2022 36 2025/05
CA4010002_006_006 SECONDARY/GP-202607 1930 TDS 300.000 5.000 MG/L 1000 07-13-2023 36 2026/07
CA4010002_006_006 SECONDARY/GP-202205 0100 TURBIDITY < 0.100 NTU 5 .1 05-09-2019 36 2022/05 DUE NOW
CA4010002_006_006 SECONDARY/GP-202505 1095 ZINC < 50.000 UG/L 5000 50 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1002 ALUMINUM < 50.000 UG/L 1000 50 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1005 ARSENIC < 2.000 UG/L 10 2 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1010 BARIUM < 100.000 UG/L 1000 100 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1015 CADMIUM < 1.000 UG/L 5 1 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1020 CHROMIUM < 10.000 UG/L 50 10 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1025 FLUORIDE 0.270 0.100 MG/L 2 .1 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1030 LEAD < 5.000 UG/L 5 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1035 MERCURY < 1.000 UG/L 2 1 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1036 NICKEL < 10.000 UG/L 100 10 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1039 PERCHLORATE < 2.000 UG/L 6 2 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1045 SELENIUM 5.300 5.000 UG/L 50 5 05-17-2022 36 2025/05
CA4010002_006_006 INORGANIC-202505 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-17-2022 36 2025/05
CA4010002_006_006 NITRATE/NITRITE-202407 1040 NITRATE 1.400 0.400 MG/L 10 .4 07-13-2023 12 2024/07
CA4010002_006_006 NITRATE/NITRITE-202505 1041 NITRITE < 0.400 MG/L 1 .4 05-17-2022 36 2025/05
CA4010002_006_006 RADIOLOGICAL-202805 4109 GROSS ALPHA PARTICLE ACTIVITY < 3.000 PCI/L 15 3 05-12-2022 72 2028/05
CA4010002_006_006 REGULATED VOC-202505 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2990 BENZENE < 0.500 UG/L 1 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2996 STYRENE < 0.500 UG/L 100 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2991 TOLUENE < 0.500 UG/L 150 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED VOC-202505 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 05-17-2022 36 2025/05
CA4010002_006_006 REGULATED SOC-202409 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 09-14-2021 36 2024/09
CA4010002_006_006 REGULATED SOC-202410 2050 ATRAZINE < 0.500 UG/L 1 .5 10-27-2015 108 2024/10
CA4010002_006_006 REGULATED SOC-202410 2037 SIMAZINE < 1.000 UG/L 4 1 10-27-2015 108 2024/10
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.