Date:05-15-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:2110008SYSTEM NAME:LAWSON S LANDINGCOUNTY:MARIN 
SOURCE NO.:011SOURCE NAME:WELL 05SOURCE CLASS:CTGPSTATUS: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
CA2110008_011_011 SECONDARY/GP-202605 1928 ALKALINITY, BICARBONATE 54.000 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1919 CALCIUM 14.000 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1929 ALKALINITY, CARBONATE < 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1017 CHLORIDE 40.000 0.500 MG/L 500 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1905 COLOR < 5.000 UNITS 15 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1022 COPPER, FREE < 50.000 UG/L 1000 50 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 2905 FOAMING AGENTS (SURFACTANTS) < 0.050 MG/L .5 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1915 HARDNESS, TOTAL (AS CACO3) 88.000 2.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1028 IRON < 100.000 UG/L 300 100 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1031 MAGNESIUM 13.000 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1032 MANGANESE < 20.000 UG/L 50 20 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1920 ODOR 2.000 1.000 TON 3 1 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1925 PH 6.800 1.000 pH 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1050 SILVER < 10.000 UG/L 100 10 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1052 SODIUM 25.000 1.000 MG/L 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1064 CONDUCTIVITY @ 25 C UMHOS/CM 280.000 10.000 UMHO/CM 1600 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1055 SULFATE 8.300 0.500 MG/L 500 .5 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1930 TDS 180.000 10.000 MG/L 1000 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 0100 TURBIDITY 0.150 0.100 NTU 5 .1 05-01-2023 36 2026/05
CA2110008_011_011 SECONDARY/GP-202605 1095 ZINC < 50.000 UG/L 5000 50 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1002 ALUMINUM < 50.000 UG/L 1000 50 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1005 ARSENIC < 2.000 UG/L 10 2 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202411 1094 ASBESTOS < 0.200 MFL 7 .2 11-24-2015 108 2024/11
CA2110008_011_011 INORGANIC-202605 1010 BARIUM < 100.000 UG/L 1000 100 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1015 CADMIUM < 1.000 UG/L 5 1 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1020 CHROMIUM < 1.000 UG/L 50 10 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1025 FLUORIDE < 0.100 MG/L 2 .1 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1035 MERCURY < 1.000 UG/L 2 1 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1036 NICKEL < 10.000 UG/L 100 10 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1039 PERCHLORATE < 2.000 UG/L 6 2 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1045 SELENIUM < 5.000 UG/L 50 5 05-01-2023 36 2026/05
CA2110008_011_011 INORGANIC-202605 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 05-01-2023 36 2026/05
CA2110008_011_011 NITRATE/NITRITE-202405 1040 NITRATE 1.700 0.400 MG/L 10 .4 05-01-2023 12 2024/05 DUE NOW
CA2110008_011_011 NITRATE/NITRITE-202605 1041 NITRITE < 0.400 MG/L 1 .4 05-01-2023 36 2026/05
CA2110008_011_011 RADIOLOGICAL-202501 4109 GROSS ALPHA PARTICLE ACTIVITY 0.811 +/- 1.090 1.300 PCI/L 15 3 01-20-2016 108 2025/01
CA2110008_011_011 REGULATED VOC-202604 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2990 BENZENE < 0.500 UG/L 1 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202611 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 11-26-2023 36 2026/11
CA2110008_011_011 REGULATED VOC-202604 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2996 STYRENE < 0.500 UG/L 100 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2991 TOLUENE < 0.500 UG/L 150 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED VOC-202604 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 04-27-2020 72 2026/04
CA2110008_011_011 REGULATED SOC-202501 2110 2,4,5-TP < 1.000 UG/L 50 1 01-20-2016 108 2025/01
CA2110008_011_011 REGULATED SOC-202501 2105 2,4-D < 10.000 UG/L 70 10 01-20-2016 108 2025/01
CA2110008_011_011 REGULATED SOC-202509 2050 ATRAZINE < 0.250 UG/L 1 .5 09-28-2022 36 2025/09
CA2110008_011_011 REGULATED SOC-202501 2031 DALAPON < 10.000 UG/L 200 10 01-20-2016 108 2025/01
CA2110008_011_011 REGULATED SOC-202509 2037 SIMAZINE < 0.250 UG/L 4 1 09-28-2022 36 2025/09
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.