CA Drinking Water Watch

ST. HELENA, CITY OF (2810004)

All Sampling Results From To

DBP_#8 ALLISON AVE_STAGE2SMP (CA2810004_DST_018)

Click to hide / show columns: Analyte Number | Analyte Name | Sampling Date | Detected Level | Less Than | RL | Counting Error (+/-) | MCL | DLR | Unit | Lab Sample ID | Lab | ELAP | Method |

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Analyte Number Analyte Name Sampling Date Results Counting Error (+/-) MCL DLR Unit Lab Sample ID Lab ELAP Method
Detected Level Less Than RL
Analyte Number Analyte Name Sampling Date Detected Level Less Than RL Counting Error (+/-) MCL DLR Unit Lab Sample ID Lab ELAP Method
2950 TTHM 08-24-2023 3.83 1 80 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2944 DIBROMOCHLOROMETHANE 08-24-2023 1.23 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2943 BROMODICHLOROMETHANE 08-24-2023 1.35 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2942 BROMOFORM 08-24-2023 < 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2941 CHLOROFORM 08-24-2023 1.25 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2456 TOTAL HALOACETIC ACIDS (HAA5) 08-24-2023 < 1 60 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2454 DIBROMOACETIC ACID 08-24-2023 < 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2453 MONOBROMOACETIC ACID 08-24-2023 < 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2452 TRICHLOROACETIC ACID 08-24-2023 < 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2451 DICHLOROACETIC ACID 08-24-2023 < 1 1 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2450 MONOCHLOROACETIC ACID 08-24-2023 < 2 2 UG/L 23H4006-09 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2950 TTHM 05-25-2023 4.22 1 80 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2944 DIBROMOCHLOROMETHANE 05-25-2023 1.75 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2943 BROMODICHLOROMETHANE 05-25-2023 1.41 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2942 BROMOFORM 05-25-2023 < 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2941 CHLOROFORM 05-25-2023 1.06 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2456 TOTAL HALOACETIC ACIDS (HAA5) 05-25-2023 1.4 1 60 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2454 DIBROMOACETIC ACID 05-25-2023 1.4 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2453 MONOBROMOACETIC ACID 05-25-2023 < 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2452 TRICHLOROACETIC ACID 05-25-2023 < 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2451 DICHLOROACETIC ACID 05-25-2023 < 1 1 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2450 MONOCHLOROACETIC ACID 05-25-2023 < 2 2 UG/L 23E3980-10 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2

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.