CA Drinking Water Watch

Links

PS Code Transition

Water System Details

Water System Facilities  

Monitoring Schedules

Monitoring Results

Monitoring Results By Analyte

Lead And Copper Sampling

Violations/Enforcement Actions

Site Visits

Consumer Confidence Reports

  • Templates
  • 2025
  • 2024
  • 2023
  • 2022
  • 2021
  • 2020

Lead Service Line Documents

Return Links

Water System Search

County Map

Glossary

Contact Info

 

 

All Copper Sampling Results Tips on using table


Water System No. : CA1910242 Federal Type : C
Water System Name : CALIFORNIA WATER SERVICE CO-LAKE HUGHES State Type : C
Principal County Served : LOS ANGELES Primary Source : GW
Status : A Activity Date : 01-01-1976
Distribution System Classification : D2 Max Treatment Plant Classification : T2

Click to hide / show columns: Sample No. | Site | Date | Result | Units | Analyte | Location | Laboratory|

Sample No. Site Date Result Units Analyte Location Laboratory
Sample No. Site Date Result Units Analyte Location Laboratory
250627-0216 LCR 07-09-2025 156 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0217 LCR 07-10-2025 9 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0218 LCR 07-14-2025 120 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0219 LCR 07-09-2025 137 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0220 LCR 07-08-2025 34.2 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0221 LCR 07-15-2025 75.3 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0222 LCR 07-10-2025 69.4 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0223 LCR 07-09-2025 192 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250627-0225 LCR 07-14-2025 209 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
250721-0026 LCR 07-24-2025 105 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
AFH2843-01 LCR 08-10-2022 0 COPPER, FREE LCR BSK ANALYTICAL LABORATORIES
220804-1371 LCR 08-09-2022 13.2 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1372 LCR 08-11-2022 119 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1373 LCR 08-10-2022 47.1 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1374 LCR 08-09-2022 120 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1375 LCR 08-10-2022 39.6 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1376 LCR 08-10-2022 91.3 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1377 LCR 08-10-2022 363 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1379 LCR 08-10-2022 127 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1380 LCR 08-10-2022 180 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1382 LCR 08-10-2022 101 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1383 LCR 08-10-2022 20.3 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
220804-1384 LCR 08-09-2022 103 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0034 LCR 07-18-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0035 LCR 07-18-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0036 LCR 07-19-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0037 LCR 07-19-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0038 LCR 07-19-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0039 LCR 07-18-2019 86.37 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0040 LCR 07-18-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190715-0041 LCR 07-23-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0041 LCR 07-25-2019 106.43 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0061 LCR 08-01-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0062 LCR 08-01-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0063 LCR 08-02-2019 100.49 UG/L COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0065 LCR 08-02-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.
190729-0066 LCR 08-02-2019 0 COPPER, FREE LCR CALIFORNIA WATER SERVICE CO.