Date:05-19-2024STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:3010092SYSTEM NAME:IRVINE RANCH WATER DISTRICTCOUNTY:ORANGE 
SOURCE NO.:063SOURCE NAME:HARDING CANYON GWUDISOURCE CLASS:CSGMSTATUS: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
CA3010092_063_063 SECONDARY/GP-202502 1994 AGGRESSIVE INDEX 12.670 AGGR 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1928 ALKALINITY, BICARBONATE 199.000 1.000 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1919 CALCIUM 117.000 0.400 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1929 ALKALINITY, CARBONATE < 1.000 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1017 CHLORIDE 17.200 2.000 MG/L 500 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1905 COLOR 8.000 3.000 UNITS 15 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1022 COPPER, FREE < 50.000 UG/L 1000 50 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202504 2905 FOAMING AGENTS (SURFACTANTS) < 0.100 MG/L .5 04-23-2024 12 2025/04
CA3010092_063_063 SECONDARY/GP-202502 1915 HARDNESS, TOTAL (AS CACO3) 389.000 2.900 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1021 HYDROXIDE AS CALCIUM CARBONATE < 1.000 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1028 IRON < 100.000 UG/L 300 100 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1031 MAGNESIUM 23.300 0.400 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1032 MANGANESE < 20.000 UG/L 50 20 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1920 ODOR 2.000 1.000 TON 3 1 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-201803 1925 PH 7.400 pH 03-21-2017 12 2018/03 DUE NOW
CA3010092_063_063 SECONDARY/GP-202502 1050 SILVER < 10.000 UG/L 100 10 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1052 SODIUM 30.400 0.400 MG/L 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1064 CONDUCTIVITY @ 25 C UMHOS/CM 874.000 UMHO/CM 1600 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1055 SULFATE 165.000 4.000 MG/L 500 .5 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1930 TDS 472.000 25.000 MG/L 1000 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 0100 TURBIDITY 5.600 0.100 NTU 5 .1 02-28-2024 12 2025/02
CA3010092_063_063 SECONDARY/GP-202502 1095 ZINC < 50.000 UG/L 5000 50 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1002 ALUMINUM < 50.000 UG/L 1000 50 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1074 ANTIMONY, TOTAL < 6.000 UG/L 6 6 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1005 ARSENIC < 2.000 UG/L 10 2 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202102 1094 ASBESTOS < 0.200 MFL 7 .2 02-13-2020 12 2021/02 DUE NOW
CA3010092_063_063 INORGANIC-202502 1010 BARIUM < 100.000 UG/L 1000 100 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1075 BERYLLIUM, TOTAL < 1.000 UG/L 4 1 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1015 CADMIUM < 1.000 UG/L 5 1 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1020 CHROMIUM < 10.000 UG/L 50 10 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1025 FLUORIDE 0.160 0.100 MG/L 2 .1 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202504 1035 MERCURY < 1.000 UG/L 2 1 04-23-2024 12 2025/04
CA3010092_063_063 INORGANIC-202502 1036 NICKEL < 10.000 UG/L 100 10 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1039 PERCHLORATE < 2.000 UG/L 6 1 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1045 SELENIUM < 5.000 UG/L 50 5 02-28-2024 12 2025/02
CA3010092_063_063 INORGANIC-202502 1085 THALLIUM, TOTAL < 1.000 UG/L 2 1 02-28-2024 12 2025/02
CA3010092_063_063 NITRATE/NITRITE-202405 1040 NITRATE < 0.400 MG/L 10 .4 02-28-2024 3 2024/05 DUE NOW
CA3010092_063_063 NITRATE/NITRITE-202702 1041 NITRITE < 0.400 MG/L 1 .4 02-28-2024 36 2027/02
CA3010092_063_063 RADIOLOGICAL-202902 4109 GROSS ALPHA PARTICLE ACTIVITY < PCI/L 15 3 02-13-2020 108 2029/02
CA3010092_063_063 RADIOLOGICAL-202902 4020 RADIUM-226 < 0.700 PCI/L 1 02-13-2020 108 2029/02
CA3010092_063_063 RADIOLOGICAL-202902 4030 RADIUM-228 < 0.800 PCI/L 1 02-13-2020 108 2029/02
CA3010092_063_063 RADIOLOGICAL-202902 4006 COMBINED URANIUM < 1.000 PCI/L 20 1 02-13-2020 108 2029/02
CA3010092_063_063 REGULATED VOC-202502 2981 1,1,1-TRICHLOROETHANE < 0.500 UG/L 200 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2988 1,1,2,2-TETRACHLOROETHANE < 0.500 UG/L 1 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2985 1,1,2-TRICHLOROETHANE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2978 1,1-DICHLOROETHANE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2977 1,1-DICHLOROETHYLENE < 0.500 UG/L 6 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2378 1,2,4-TRICHLOROBENZENE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2968 O-DICHLOROBENZENE < 0.500 UG/L 600 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2980 1,2-DICHLOROETHANE < 0.500 UG/L .5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2983 1,2-DICHLOROPROPANE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202205 2413 1,3-DICHLOROPROPENE < 0.500 UG/L .5 .5 05-19-2021 12 2022/05 DUE NOW
CA3010092_063_063 REGULATED VOC-202502 2969 P-DICHLOROBENZENE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2990 BENZENE < 0.500 UG/L 1 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2982 CARBON TETRACHLORIDE < 0.500 UG/L .5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2380 CIS-1,2-DICHLOROETHYLENE < 0.500 UG/L 6 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2964 DICHLOROMETHANE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2992 ETHYLBENZENE < 0.500 UG/L 300 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2251 METHYL TERT-BUTYL ETHER < 3.000 UG/L 13 3 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2989 CHLOROBENZENE < 0.500 UG/L 70 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2996 STYRENE < 0.500 UG/L 100 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2987 TETRACHLOROETHYLENE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2991 TOLUENE < 0.500 UG/L 150 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2979 TRANS-1,2-DICHLOROETHYLENE < 0.500 UG/L 10 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2984 TRICHLOROETHYLENE < 0.500 UG/L 5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2218 TRICHLOROFLUOROMETHANE < 5.000 UG/L 150 5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2904 TRICHLOROTRIFLUOROETHANE < 10.000 UG/L 1200 10 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2976 VINYL CHLORIDE < 0.500 UG/L .5 .5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED VOC-202502 2955 XYLENES, TOTAL < 0.500 UG/L 1750 0.5 02-28-2024 12 2025/02
CA3010092_063_063 REGULATED SOC-202602 2414 1,2,3-TRICHLOROPROPANE < 0.005 UG/L 0.005 02-15-2023 36 2026/02
CA3010092_063_063 REGULATED SOC-202602 2037 SIMAZINE < 0.100 UG/L 4 1 02-15-2023 36 2026/02
CA3010092_063_063 REGULATED SOC-203302 2727 THIOBENCARB (BOLERO) < 1.000 UG/L 70 1 02-28-2024 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.