Chemical and radiological sample results

MS0430002 , City of Brookhaven

47 of the 75 analytes this system has been tested for have been detected at least once, across 681 samples on record.

The other 28 were tested for and never found. An analyte is counted here if any result on record measured it, so this covers the whole history and not the samples listed below.

Across all 681 samples on record, detections range from June 28, 2002 to June 16, 2026. These figures cover the whole record; the list of samples further down is narrowed.

What counts as a non-detect is defined in the help: Less than Indicator. This system’s violations.

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.

Every analyte ever detected for City of Brookhaven, with how many results found it and when it was first and last detected. Covers the whole record, not only the samples listed below.
Analyte	Kind	Detected in	First detected	Last detected
Copper, Free 1022	Inorganic Chemical	174 of 174 results	Jun 15, 2004	Aug 22, 2024
Lead 1030	Inorganic Chemical	108 of 174 results	Jun 15, 2004	Aug 21, 2024
TTHM 2950	Organic Chemical	52 of 61 results	Mar 8, 2004	Apr 23, 2025
Tetrachloroethylene 2987	Organic Chemical	49 of 137 results	Jun 28, 2002	Feb 14, 2022
Barium 1010	Inorganic Chemical	40 of 41 results	Jul 16, 2002	Jun 16, 2026
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	38 of 58 results	Sep 12, 2005	Apr 23, 2025
Fluoride 1025	Inorganic Chemical	37 of 42 results	Jul 16, 2002	Jun 16, 2026
Nitrate 1040	Inorganic Chemical	36 of 111 results	May 24, 2004	Feb 25, 2026
Nitrate-Nitrite 1038	Inorganic Chemical	35 of 111 results	May 24, 2004	Feb 25, 2026
Dibromochloromethane 2944	Organic Chemical	33 of 43 results	Jul 31, 2006	Oct 7, 2020
Bromodichloromethane 2943	Organic Chemical	28 of 43 results	Jul 31, 2006	Oct 7, 2020
Bromoform 2942	Organic Chemical	26 of 43 results	Jul 31, 2006	Aug 20, 2019
Chloroform 2941	Organic Chemical	23 of 43 results	Jul 31, 2006	Oct 7, 2020
Gross Alpha, Incl. Radon & U 4002	Radionuclide	15 of 20 results	Dec 14, 2011	Oct 3, 2012
Dichloroacetic Acid 2451	Organic Chemical	12 of 37 results	Sep 8, 2009	Oct 7, 2020
Dibromoacetic Acid 2454	Organic Chemical	12 of 37 results	Jun 30, 2008	Aug 20, 2019
Combined Radium (-226 & -228) 4010	Radionuclide	12 of 30 results	Sep 21, 2009	Oct 3, 2012
Radium-226 4020	Radionuclide	12 of 30 results	Sep 21, 2009	Oct 3, 2012
Sodium 1052	Inorganic Chemical	11 of 11 results	Sep 2, 2010	Jun 16, 2026
Chromium 1020	Inorganic Chemical	11 of 41 results	Oct 6, 2003	Apr 23, 2025
Nickel 1036	Inorganic Chemical	11 of 39 results	Jul 16, 2002	Apr 23, 2025
Monochloroacetic Acid 2450	Organic Chemical	10 of 37 results	Nov 2, 2009	Jun 12, 2018
Sulfate 1055	Inorganic Chemical	9 of 9 results	Jul 16, 2002	Sep 2, 2010
Trichloroacetic Acid 2452	Organic Chemical	5 of 37 results	Aug 9, 2010	Oct 7, 2020
Gross Alpha Particle Activity 4109	Radionuclide	5 of 10 results	Sep 21, 2009	Sep 17, 2012
Radium-228 4030	Radionuclide	5 of 30 results	Sep 21, 2009	Mar 2, 2010
Gross Beta Particle Activity 4100	Radionuclide	5 of 5 results	Sep 21, 2009	Mar 2, 2010
Gross Alpha, Excl. Radon & U 4000	Radionuclide	4 of 8 results	Sep 21, 2009	Mar 2, 2010
Arsenic 1005	Inorganic Chemical	3 of 41 results	Mar 1, 2004	Apr 23, 2025
Xylenes, Total 2955	Organic Chemical	2 of 137 results	Aug 26, 2013	Jun 8, 2021
Nitrite 1041	Inorganic Chemical	1 of 111 results	Feb 28, 2022	Feb 28, 2022
Monobromoacetic Acid 2453	Organic Chemical	1 of 37 results	Oct 7, 2020	Oct 7, 2020
Dichloromethane 2964	Organic Chemical	1 of 137 results	Apr 29, 2013	Apr 29, 2013
Calcium 1016	Inorganic Chemical	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Chloride 1017	Inorganic Chemical	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Manganese 1032	Inorganic Chemical	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Potassium 1042	Inorganic Chemical	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Residue, Total, Filterable 1057	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Alkalinity, Caco3 Stability 1067	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Carbon Dioxide 1901	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Color 1905	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Hardness, Total (As Caco3) 1915	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Alkalinity, Total 1927	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Iron, Field Result FEFD	Inorganic Chemical	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Calculated Sodium NACA	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
PH, Field Result PHFD	Water Quality	1 of 1 result	Sep 2, 2010	Sep 2, 2010
Cyanide 1024	Inorganic Chemical	1 of 43 results	Mar 1, 2004	Mar 1, 2004

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

Choose a date range

The most recent samples, result by result

The table below lists 11–20 of 24 samples, newest first — collected February 10, 2025 to April 23, 2025. The summary above covers all 24.

38 results from the 10 samples listed here: 7 detected, 31 not detected. Across the whole record it is 840 of 4,721. 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 2 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.

Chemical and radiological sample results for City of Brookhaven, every result from 11 to 20 of 24 samples shown, newest first. Not detected means the amount was below the level the laboratory can reliably report, which is given beside it.
Result	Analyte	Monitoring period
Collected Apr 23, 2025 10:44 Sampling point SM3 Location withheld Sample type Routine Lab sample HA-250424-021 Laboratory MSDH Lab
12.1 ug/l , sample collected Apr 23, 2025 10:44, sampling point SM3	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2025 – Dec 31, 2025
Collected Apr 23, 2025 10:05 Sampling point SM1 Location withheld Sample type Routine Lab sample HA-250424-020 Laboratory MSDH Lab
14 ug/l , sample collected Apr 23, 2025 10:05, sampling point SM1	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2025 – Dec 31, 2025
Collected Apr 23, 2025 10:44 Sampling point SM3 Location withheld Sample type Routine Lab sample TH-250424-021 Laboratory MSDH Lab
5.87 ug/l , sample collected Apr 23, 2025 10:44, sampling point SM3	TTHM 2950 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Collected Apr 23, 2025 10:05 Sampling point SM1 Location withheld Sample type Routine Lab sample TH-250424-020 Laboratory MSDH Lab
2.75 ug/l , sample collected Apr 23, 2025 10:05, sampling point SM1	TTHM 2950 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Collected Mar 11, 2025 11:45 Sampling point TF109 Sample type Routine Lab sample NI-250312-046 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:45, sampling point TF109	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:45, sampling point TF109	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 11:45, sampling point TF109	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Mar 11, 2025 14:40 Sampling point TF108 Treatment Plant T108 Sample type Routine Lab sample NI-250312-047 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 14:40, sampling point TF108	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 14:40, sampling point TF108	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 14:40, sampling point TF108	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Mar 11, 2025 10:10 Sampling point TF107 Treatment Plant T107 Sample type Routine Lab sample NI-250312-045 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:10, sampling point TF107	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:10, sampling point TF107	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 10:10, sampling point TF107	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Mar 11, 2025 15:35 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-250312-048 Laboratory MSDH Lab
2.04 mg/l , sample collected Mar 11, 2025 15:35, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
2.04 mg/l , sample collected Mar 11, 2025 15:35, sampling point TF080	Nitrate 1040 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 11, 2025 15:35, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2025 – Dec 31, 2025
Collected Mar 3, 2025 14:52 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample VO-250304-003 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Dichloromethane 2964 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Benzene 2990 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Toluene 2991 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Mar 3, 2025 14:52, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2025 – Dec 31, 2025
Collected Feb 10, 2025 13:10 Sampling point TF109 Sample type Routine Lab sample NA-250211-033 Laboratory MSDH Lab
58 mg/l , sample collected Feb 10, 2025 13:10, sampling point TF109	Sodium 1052 EPA method 200.7	Jan 1, 2023 – Dec 31, 2025

Collected
Apr 23, 2025 10:44

Sampling point
SM3 Location withheld

Sample type
Routine

Lab sample
HA-250424-021

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  12.1 ug/l
Collected
Apr 23, 2025 10:05

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
HA-250424-020

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  14 ug/l
Collected
Apr 23, 2025 10:44

Sampling point
SM3 Location withheld

Sample type
Routine

Lab sample
TH-250424-021

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- TTHM 2950 EPA method 524.2
  
  Result
  5.87 ug/l
Collected
Apr 23, 2025 10:05

Sampling point
SM1 Location withheld

Sample type
Routine

Lab sample
TH-250424-020

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- TTHM 2950 EPA method 524.2
  
  Result
  2.75 ug/l
Collected
Mar 11, 2025 11:45

Sampling point
TF109

Sample type
Routine

Lab sample
NI-250312-046

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- 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 11, 2025 14:40

Sampling point
TF108 Treatment Plant T108

Sample type
Routine

Lab sample
NI-250312-047

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- 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 11, 2025 10:10

Sampling point
TF107 Treatment Plant T107

Sample type
Routine

Lab sample
NI-250312-045

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- 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 11, 2025 15:35

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-250312-048

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  2.04 mg/l
- Nitrate 1040 EPA method QC10107041C
  
  Result
  2.04 mg/l
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Mar 3, 2025 14:52

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
VO-250304-003

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2025 – Dec 31, 2025
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Feb 10, 2025 13:10

Sampling point
TF109

Sample type
Routine

Lab sample
NA-250211-033

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2025
- Sodium 1052 EPA method 200.7
  
  Result
  58 mg/l

Routine (10).