Chemical and radiological sample results

MS0550005 ·, Pearl River Central W/A

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.

The most recent samples, result by result

The table below lists 1–10 of 22 samples, newest first — collected August 14, 2025 to July 21, 2026. The summary above covers all 22.

25 results from the 10 samples listed here: 15 detected, 10 not detected. Across the whole record it is 719 of 2,633. 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 The location on record identifies a private home, and we do not publish those.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

  Jul 21, 2026

  Sampling point

  TF106 Treatment Facility TF106

  Sample type

  Routine

  Lab sample

  35052718004

  Laboratory

  Pace Analytical Services, LLC

  Monitoring period

  Jan 1, 2024 – Dec 31, 2026

  • Sodium 1052 EPA method 200.7

    Result

    66600 ug/l

• Collected

  Jul 21, 2026

  Sampling point

  TF105 Treatment Plant T105

  Sample type

  Routine

  Lab sample

  35052718003

  Laboratory

  Pace Analytical Services, LLC

  Monitoring period

  Jan 1, 2024 – Dec 31, 2026

  • Sodium 1052 EPA method 200.7

    Result

    64300 ug/l

• Collected

  Jul 21, 2026

  Sampling point

  TF104 Treatment Plant T104

  Sample type

  Routine

  Lab sample

  35052718002

  Laboratory

  Pace Analytical Services, LLC

  • Cyanide 1024 EPA method 335.4

    Result

    Not detected below 0.01 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Nitrate-Nitrite 1038

    Result

    Not detected below 0.05 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Nitrate 1040 EPA method 353.2

    Result

    Not detected below 0.05 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Nitrite 1041 EPA method 353.2

    Result

    Not detected below 0.05 mg/l Minimum Reporting Level

    Monitoring period

    Not recorded

  • Sodium 1052 EPA method 200.7

    Result

    66600 ug/l

    Monitoring period

    Jan 1, 2024 – Dec 31, 2026

• Collected

  Jul 21, 2026

  Sampling point

  TF103 Treatment Plant T103

  Sample type

  Routine

  Lab sample

  35052718001

  Laboratory

  Pace Analytical Services, LLC

  • Cyanide 1024 EPA method 335.4

    Result

    Not detected below 0.01 mg/l Minimum Reporting Level

    Monitoring period

    Jan 1, 2026 – Dec 31, 2031

  • Sodium 1052 EPA method 200.7

    Result

    64900 ug/l

    Monitoring period

    Jan 1, 2024 – Dec 31, 2026

• Collected

  May 11, 2026 14:00

  Sampling point

  SM2 Location withheld

  Sample type

  Routine

  Lab sample

  810-191731-1

  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

    1.9 ug/l

    Monitoring period

    Not recorded

  • Trichloroacetic Acid 2452 EPA method 552.2

    Result

    1.5 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

    3.4 ug/l

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

  • Chloroform 2941 EPA method 524.2

    Result

    4.2 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

    2.3 ug/l

    Monitoring period

    Not recorded

  • Dibromochloromethane 2944 EPA method 524.2

    Result

    1.2 ug/l

    Monitoring period

    Not recorded

  • TTHM 2950 EPA method 524.2

    Result

    7.7 ug/l

    Monitoring period

    Jan 1, 2026 – Dec 31, 2026

• Collected

  Sep 10, 2025 15:08

  Sampling point

  TF106 Treatment Facility TF106

  Sample type

  Routine

  Lab sample

  IN-250911-020

  Laboratory

  MSDH Lab

  Monitoring period

  Not recorded

  • Mercury 1035 EPA method 200.8

    Result

    Not detected below 0.0005 mg/l Minimum Reporting Level

• Collected

  Aug 14, 2025 12:44

  Sampling point

  SM4 Location withheld

  Sample type

  Routine

  Lab sample

  HA-250815-003

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    5.51 ug/l

• Collected

  Aug 14, 2025 12:07

  Sampling point

  SM1 Location withheld

  Sample type

  Routine

  Lab sample

  HA-250815-002

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • Total Haloacetic Acids (Haa5) 2456 EPA method 552.2

    Result

    5.49 ug/l

• Collected

  Aug 14, 2025 12:44

  Sampling point

  SM4 Location withheld

  Sample type

  Routine

  Lab sample

  TH-250815-003

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • TTHM 2950 EPA method 524.2

    Result

    14.9 ug/l

• Collected

  Aug 14, 2025 12:07

  Sampling point

  SM1 Location withheld

  Sample type

  Routine

  Lab sample

  TH-250815-002

  Laboratory

  MSDH Lab

  Monitoring period

  Jan 1, 2025 – Dec 31, 2025

  • TTHM 2950 EPA method 524.2

    Result

    13.7 ug/l

Routine (10).