CA Drinking Water Watch

ST. HELENA, CITY OF (2810004)

All Sampling Results From To

PURCHASED WATER-CITY OF NAPA (CA2810004_014_014)

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 05-25-2023 26.12 1 80 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2944 DIBROMOCHLOROMETHANE 05-25-2023 1.29 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2943 BROMODICHLOROMETHANE 05-25-2023 5.87 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2942 BROMOFORM 05-25-2023 < 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2941 CHLOROFORM 05-25-2023 18.96 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 524.2
2456 TOTAL HALOACETIC ACIDS (HAA5) 05-25-2023 30.0 1 60 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2454 DIBROMOACETIC ACID 05-25-2023 < 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2453 MONOBROMOACETIC ACID 05-25-2023 < 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2452 TRICHLOROACETIC ACID 05-25-2023 14.2 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2451 DICHLOROACETIC ACID 05-25-2023 15.8 1 1 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
2450 MONOCHLOROACETIC ACID 05-25-2023 < 2 2 UG/L 23E3980-06 ALPHA ANALYTICAL LABORATORIES UKIAH 1551 EPA 552.2
1920 ODOR 11-09-2020 20.0000000 1 3 1 TON 32210142011090803G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 09-17-2020 15.0000000 1 3 1 TON 32210142009170735G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 04-08-2020 5.8000000 1 3 1 TON 32210142004080935G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 03-11-2020 4.1000000 1 3 1 TON 32210142003110835G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 02-12-2020 14.0000000 1 3 1 TON 32210142002120845G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 01-08-2020 7.0000000 1 3 1 TON 32210142001080830G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 12-11-2019 8.1000000 1 3 1 TON 32210141912110829G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 11-13-2019 10.0000000 1 3 1 TON 32210141911130800G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 10-09-2019 7.0000000 1 3 1 TON 32210141910090748G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 09-11-2019 6.3000000 1 3 1 TON 32210141909110800G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 08-07-2019 14.0000000 1 3 1 TON 32210141908070843G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 07-03-2019 4.1000000 1 3 1 TON 32210141907030842G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 06-12-2019 2.5000000 1 3 1 TON 32210141906120843G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 05-08-2019 2.7000000 1 3 1 TON 32210141905080840G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 04-10-2019 < 1 3 1 TON 32210141904100840G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 03-13-2019 7.0000000 1 3 1 TON 32210141903130824G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 02-13-2019 10.0000000 1 3 1 TON 32210141902130840G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 01-09-2019 < 1 3 1 TON 32210141901090906G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 12-12-2018 < 1 3 1 TON 32210141812120837G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 11-07-2018 5.0000000 1 3 1 TON 32210141811070823G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 10-10-2018 < 1 3 1 TON 32210141810100833G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 09-12-2018 < 1 3 1 TON 32210141809120830G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 08-01-2018 6.3000000 1 3 1 TON 32210141808010850G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 07-11-2018 20.0000000 1 3 1 TON 32210141807110902G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 06-06-2018 < 1 3 1 TON 32210141806060753G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 05-09-2018 < 1 3 1 TON 32210141805090700G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 04-11-2018 < 1 3 1 TON 32210141804110748G ALPHA ANALYTICAL LABORATORIES UKIAH 1551
1920 ODOR 03-15-2018 8.0000000 1 3 1 TON 32210141803150831G CALTEST ANALYTICAL LABORATORY 1664

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.