Chemical and radiological sample results

MS0450024 ·, PRVWSD-Twin Harbor

What has been detected, ever

Every analyte measured above its reporting level at any point in this system’s record, most often detected first. This is not limited to the samples listed below.

Scroll the table sideways for the dates.

No date range is applied: this list draws on every sample on record. Show the last two years only.

The most recent samples, result by result

The table below lists 21–30 of 310 samples, newest first — collected March 20, 2024 to August 20, 2024. The summary above covers all 310.

56 results from the 10 samples listed here: 32 detected, 24 not detected. Across the whole record it is 396 of 1,546. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 3 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

• Collected

  Aug 20, 2024 05:00

  Sampling point

  LC0027 Location withheld

  Sample type

  Routine

  Lab sample

  PB-240820-046

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2022 – Dec 31, 2024

  • Copper, Free 1022 EPA method 200.8

    Result

    0.0837 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Aug 19, 2024 15:30

  Sampling point

  LC0020 Location withheld

  Sample type

  Routine

  Lab sample

  PB-240820-050

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2022 – Dec 31, 2024

  • Copper, Free 1022 EPA method 200.8

    Result

    0.036 mg/l

  • Lead 1030 EPA method 200.8

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

• Collected

  Aug 8, 2024 10:00

  Sampling point

  SM2 Twin Harbor Tank Off Rice Rd

  Sample type

  Routine

  Lab sample

  810-115219-2

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    11 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    12 ug/l

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    23 ug/l

    Monitoring period

    Jul 1, 2024 – Sep 30, 2024

  • Chloroform 2941 EPA method 524.2

    Result

    30 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    7.5 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.6 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    39.1 ug/l

    Monitoring period

    Jul 1, 2024 – Sep 30, 2024

• Collected

  Aug 8, 2024 09:45

  Sampling point

  SM1 Location withheld

  Sample type

  Routine

  Lab sample

  810-115219-1

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    11 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    11 ug/l

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    22 ug/l

    Monitoring period

    Jul 1, 2024 – Sep 30, 2024

  • Chloroform 2941 EPA method 524.2

    Result

    31 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    7.5 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.7 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    40.2 ug/l

    Monitoring period

    Jul 1, 2024 – Sep 30, 2024

• Collected

  May 21, 2024 08:52

  Sampling point

  SM2 Twin Harbor Tank Off Rice Rd

  Sample type

  Routine

  Lab sample

  810-105687-2

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    12 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    12 ug/l

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    24 ug/l

    Monitoring period

    Apr 1, 2024 – Jun 30, 2024

  • Chloroform 2941 EPA method 524.2

    Result

    23 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    6.6 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.5 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    31.1 ug/l

    Monitoring period

    Apr 1, 2024 – Jun 30, 2024

• Collected

  May 21, 2024 08:27

  Sampling point

  SM1 Location withheld

  Sample type

  Routine

  Lab sample

  810-105687-1

  Laboratory

  Eurofins Eaton Analytical South Bend in

  • Monochloroacetic Acid 2450 EPA method 552.2

    Result

    Not detected below 2 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dichloroacetic Acid 2451 EPA method 552.2

    Result

    12 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    12 ug/l

    Monitoring period

    Not recorded

  • Monobromoacetic Acid 2453 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Dibromoacetic Acid 2454 EPA method 552.2

    Result

    Not detected below 1 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    24 ug/l

    Monitoring period

    Apr 1, 2024 – Jun 30, 2024

  • Chloroform 2941 EPA method 524.2

    Result

    25 ug/l

    Monitoring period

    Not recorded

  • Bromoform 2942 EPA method 524.2

    Result

    Not detected below 0.5 ug/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Bromodichloromethane 2943 EPA method 524.2

    Result

    6.9 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.5 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    33.4 ug/l

    Monitoring period

    Apr 1, 2024 – Jun 30, 2024

• Collected

  May 21, 2024 08:25

  Sampling point

  MRT000 Max. Res. Time

  Sample type

  Routine

  Lab sample

  HA-240522-009

  Laboratory

  MSDH Lab

  Monitoring period

  Not recorded

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    26.5 ug/l

• Collected

  May 21, 2024 08:23

  Sampling point

  MRT000 Max. Res. Time

  Sample type

  Routine

  Lab sample

  TH-240522-009

  Laboratory

  MSDH Lab

  Monitoring period

  Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    36.6 ug/l

• Collected

  Mar 20, 2024 08:52

  Sampling point

  TF103

  Sample type

  Routine

  Lab sample

  NI-240320-047

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2024 – Dec 31, 2024

  • Nitrate-Nitrite 1038 EPA method QC10107041C

    Result

    Not detected below 0.1 mg/l Minimum Reporting Level

  • Nitrate 1040 EPA method QC10107041C

    Result

    Not detected below 0.08 mg/l Minimum Reporting Level

  • Nitrite 1041 EPA method QC10107041C

    Result

    Not detected below 0.02 mg/l Minimum Reporting Level

• Collected

  Mar 20, 2024 09:15

  Sampling point

  TF102 Treatment Plant T102

  Sample type

  Routine

  Lab sample

  NI-240320-048

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2024 – Dec 31, 2024

  • Nitrate-Nitrite 1038 EPA method QC10107041C

    Result

    Not detected below 0.1 mg/l Minimum Reporting Level

  • Nitrate 1040 EPA method QC10107041C

    Result

    Not detected below 0.08 mg/l Minimum Reporting Level

  • Nitrite 1041 EPA method QC10107041C

    Result

    Not detected below 0.02 mg/l Minimum Reporting Level

Routine (10).