Date:03-27-2025STATE OF CALIFORNIA 
LAST AND NEXT SAMPLE REPORT
SYSTEM NO.:1900581SYSTEM NAME:MOUNTAIN HIGH EAST SKI AREACOUNTY:LOS ANGELES 
SOURCE NO.:All SourcesSOURCE NAME:N/ASOURCE CLASS:N/ASTATUS:N/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
CA1900581_001_001 NITRATE/NITRITE 1040 NITRATE 0.440 0.400 MG/L 10 .4 08-20-2024 12 2025/08
CA1900581_001_001 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-25-2022 36 2025/08
CA1900581_001_001 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 DUE NOW
CA1900581_002_002 NITRATE/NITRITE 1040 NITRATE 0.420 0.400 MG/L 10 .4 08-20-2024 12 2025/08
CA1900581_002_002 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-25-2022 36 2025/08
CA1900581_002_002 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 DUE NOW
CA1900581_003_003 NITRATE/NITRITE 1040 NITRATE < 0.400 MG/L 10 .4 08-20-2024 12 2025/08
CA1900581_003_003 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-25-2022 36 2025/08
CA1900581_003_003 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 DUE NOW
CA1900581_004_004 NITRATE/NITRITE 1040 NITRATE 0.560 0.400 MG/L 10 .4 09-27-2024 12 2025/09
CA1900581_004_004 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-25-2022 36 2025/08
CA1900581_004_004 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 DUE NOW
CA1900581_005_005 NITRATE/NITRITE 1040 NITRATE 0.600 0.400 MG/L 10 .4 09-27-2024 12 2025/09
CA1900581_005_005 NITRATE/NITRITE 1041 NITRITE < 0.400 MG/L 1 .4 08-25-2022 36 2025/08
CA1900581_005_005 REGULATED SOC 2414 1,2,3-TRICHLOROPROPANE UG/L 0.005 3 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.