Chemical and radiological sample results

MS0240001 , City of Biloxi

51 of the 75 analytes this system has been tested for have been detected at least once, across 1,824 samples on record.

The other 24 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 1,824 samples on record, detections range from August 11, 1992 to June 25, 2026. These figures cover the whole record.

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 Biloxi, 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	616 of 692 results	Aug 11, 1992	Jul 11, 2024
Lead 1030	Inorganic Chemical	502 of 692 results	Aug 11, 1992	Jul 11, 2024
Fluoride 1025	Inorganic Chemical	148 of 148 results	Jun 25, 2002	Jun 25, 2026
Barium 1010	Inorganic Chemical	144 of 145 results	Jun 25, 2002	Feb 10, 2025
TTHM 2950	Organic Chemical	121 of 121 results	Mar 8, 2004	Apr 28, 2026
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	113 of 119 results	Aug 2, 2004	Apr 28, 2026
Chloroform 2941	Organic Chemical	103 of 103 results	Jul 25, 2006	Apr 28, 2026
Bromodichloromethane 2943	Organic Chemical	99 of 103 results	Jul 25, 2006	Apr 28, 2026
Dichloroacetic Acid 2451	Organic Chemical	95 of 97 results	Aug 26, 2007	Apr 28, 2026
Trichloroacetic Acid 2452	Organic Chemical	95 of 97 results	Aug 26, 2007	Apr 28, 2026
Dibromochloromethane 2944	Organic Chemical	88 of 103 results	Jul 25, 2006	Apr 28, 2026
Chromium 1020	Inorganic Chemical	75 of 145 results	Jun 25, 2002	Feb 10, 2025
Nickel 1036	Inorganic Chemical	53 of 144 results	Jun 25, 2002	Feb 10, 2025
Dibromoacetic Acid 2454	Organic Chemical	51 of 97 results	Dec 3, 2007	Apr 28, 2026
Sodium 1052	Inorganic Chemical	39 of 39 results	Jan 22, 2010	Jun 25, 2026
Bromoform 2942	Organic Chemical	34 of 103 results	Dec 3, 2007	Apr 28, 2026
Selenium 1045	Inorganic Chemical	33 of 145 results	Feb 4, 2004	Apr 21, 2014
Sulfate 1055	Inorganic Chemical	30 of 30 results	Jun 25, 2002	Oct 18, 2012
Arsenic 1005	Inorganic Chemical	20 of 145 results	Mar 7, 2005	Feb 10, 2025
Monochloroacetic Acid 2450	Organic Chemical	18 of 97 results	May 5, 2008	Oct 26, 2017
Combined Radium (-226 & -228) 4010	Radionuclide	16 of 57 results	Feb 18, 2009	Nov 14, 2019
Radium-226 4020	Radionuclide	12 of 56 results	Jun 25, 2009	Nov 14, 2019
Radium-228 4030	Radionuclide	12 of 56 results	Feb 18, 2009	Nov 14, 2019
Gross Alpha, Incl. Radon & U 4002	Radionuclide	10 of 23 results	Nov 20, 2013	Nov 14, 2019
Cyanide 1024	Inorganic Chemical	8 of 136 results	Sep 19, 2011	Jun 16, 2025
Cadmium 1015	Inorganic Chemical	7 of 145 results	Mar 7, 2005	Mar 7, 2005
Carbon Tetrachloride 2982	Organic Chemical	5 of 177 results	Jun 4, 2007	Apr 12, 2021
Gross Alpha Particle Activity 4109	Radionuclide	3 of 33 results	Jun 25, 2009	Mar 12, 2014
Calcium 1016	Inorganic Chemical	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Chloride 1017	Inorganic Chemical	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Manganese 1032	Inorganic Chemical	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Potassium 1042	Inorganic Chemical	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Residue, Total, Filterable 1057	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Alkalinity, Caco3 Stability 1067	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Carbon Dioxide 1901	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Color 1905	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Hardness, Total (As Caco3) 1915	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Alkalinity, Total 1927	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Calculated Sodium NACA	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
PH, Field Result PHFD	Water Quality	3 of 3 results	Jan 22, 2010	Oct 18, 2012
Dichloromethane 2964	Organic Chemical	3 of 177 results	Feb 21, 2006	Feb 6, 2007
Iron 1028	Inorganic Chemical	2 of 3 results	Jan 22, 2010	Oct 18, 2012
Gross Alpha, Excl. Radon & U 4000	Radionuclide	2 of 30 results	Jun 25, 2009	Oct 26, 2009
Gross Beta Particle Activity 4100	Radionuclide	2 of 2 results	Jun 25, 2009	Oct 26, 2009
Antimony, Total 1074	Inorganic Chemical	1 of 145 results	Apr 25, 2022	Apr 25, 2022
Thallium, Total 1085	Inorganic Chemical	1 of 145 results	Apr 22, 2020	Apr 22, 2020
Monobromoacetic Acid 2453	Organic Chemical	1 of 97 results	Oct 27, 2014	Oct 27, 2014
Magnesium 1031	Inorganic Chemical	1 of 3 results	Jan 22, 2010	Jan 22, 2010
Nitrite 1041	Inorganic Chemical	1 of 302 results	Jun 19, 2006	Jun 19, 2006
Nitrate 1040	Inorganic Chemical	1 of 302 results	May 12, 2004	May 12, 2004
Xylenes, Total 2955	Organic Chemical	1 of 177 results	Aug 18, 2003	Aug 18, 2003

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 231–240 of 1,824 samples, newest first — collected May 7, 2020 to March 16, 2021. The summary above covers all 1,824.

33 results from the 10 samples listed here: 9 detected, 24 not detected. Across the whole record it is 2,602 of 9,309. 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 1 sampling point 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 Biloxi, every result from 231 to 240 of 1,824 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 Mar 16, 2021 14:00 Sampling point TF110 Treatment Plant T110 Sample type Routine Lab sample NI-210317-028 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 14:00, sampling point TF110	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 14:00, sampling point TF110	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 14:00, sampling point TF110	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Mar 16, 2021 13:40 Sampling point TF106 Treatment Plant T106 Sample type Routine Lab sample NI-210317-027 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:40, sampling point TF106	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:40, sampling point TF106	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:40, sampling point TF106	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Mar 16, 2021 13:05 Sampling point TF105 Treatment Plant T105 Sample type Routine Lab sample NI-210317-026 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:05, sampling point TF105	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:05, sampling point TF105	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:05, sampling point TF105	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Mar 16, 2021 13:50 Sampling point TF104 Treatment Plant T104 Sample type Routine Lab sample NI-210317-024 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:50, sampling point TF104	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:50, sampling point TF104	Nitrate 1040 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 16, 2021 13:50, sampling point TF104	Nitrite 1041 EPA method QC10107041C	Jan 1, 2021 – Dec 31, 2021
Collected Dec 7, 2020 12:15 Sampling point TF116 Treatment Plant T116 Sample type Routine Lab sample CN-201208-023 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Dec 7, 2020 12:15, sampling point TF116	Cyanide 1024 EPA method QC10204001X	Jan 1, 2018 – Dec 31, 2020
Collected Nov 17, 2020 12:55 Sampling point TF115 Treatment Plant T115 Sample type Routine Lab sample NI-201118-008 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:55, sampling point TF115	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:55, sampling point TF115	Nitrate 1040 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:55, sampling point TF115	Nitrite 1041 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Collected Nov 17, 2020 12:35 Sampling point TF114 Treatment Plant T114 Sample type Routine Lab sample NI-201118-007 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:35, sampling point TF114	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:35, sampling point TF114	Nitrate 1040 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:35, sampling point TF114	Nitrite 1041 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Collected Nov 17, 2020 12:20 Sampling point TF111 Treatment Plant T111 Sample type Routine Lab sample NI-201118-006 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:20, sampling point TF111	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:20, sampling point TF111	Nitrate 1040 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Nov 17, 2020 12:20, sampling point TF111	Nitrite 1041 EPA method QC10107041C	Jan 1, 2020 – Dec 31, 2020
Collected May 7, 2020 15:45 Sampling point SM2 Location withheld Sample type Routine Lab sample 200508-003HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected May 7, 2020 15:45, sampling point SM2	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
0.005 mg/l , sample collected May 7, 2020 15:45, sampling point SM2	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
0.005 mg/l , sample collected May 7, 2020 15:45, sampling point SM2	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected May 7, 2020 15:45, sampling point SM2	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
0.006 mg/l , sample collected May 7, 2020 15:45, sampling point SM2	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
0.016 mg/l , sample collected May 7, 2020 15:45, sampling point SM2	Total Haloacetic Acids (Haa5) 2456	Jan 1, 2020 – Dec 31, 2020
Collected May 7, 2020 15:48 Sampling point SM2 Location withheld Sample type Routine Lab sample 200508-003TH Laboratory MSDH Lab
11.7 ug/l , sample collected May 7, 2020 15:48, sampling point SM2	Chloroform 2941 EPA method 524.2	Not recorded
6.21 ug/l , sample collected May 7, 2020 15:48, sampling point SM2	Bromoform 2942 EPA method 524.2	Not recorded
13.7 ug/l , sample collected May 7, 2020 15:48, sampling point SM2	Bromodichloromethane 2943 EPA method 524.2	Not recorded
18.3 ug/l , sample collected May 7, 2020 15:48, sampling point SM2	Dibromochloromethane 2944 EPA method 524.2	Not recorded
49.9 ug/l , sample collected May 7, 2020 15:48, sampling point SM2	TTHM 2950	Jan 1, 2020 – Dec 31, 2020

Collected
Mar 16, 2021 14:00

Sampling point
TF110 Treatment Plant T110

Sample type
Routine

Lab sample
NI-210317-028

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- 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 16, 2021 13:40

Sampling point
TF106 Treatment Plant T106

Sample type
Routine

Lab sample
NI-210317-027

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- 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 16, 2021 13:05

Sampling point
TF105 Treatment Plant T105

Sample type
Routine

Lab sample
NI-210317-026

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- 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 16, 2021 13:50

Sampling point
TF104 Treatment Plant T104

Sample type
Routine

Lab sample
NI-210317-024

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- 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
Dec 7, 2020 12:15

Sampling point
TF116 Treatment Plant T116

Sample type
Routine

Lab sample
CN-201208-023

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2018 – Dec 31, 2020
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Nov 17, 2020 12:55

Sampling point
TF115 Treatment Plant T115

Sample type
Routine

Lab sample
NI-201118-008

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2020
- 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
Nov 17, 2020 12:35

Sampling point
TF114 Treatment Plant T114

Sample type
Routine

Lab sample
NI-201118-007

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2020
- 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
Nov 17, 2020 12:20

Sampling point
TF111 Treatment Plant T111

Sample type
Routine

Lab sample
NI-201118-006

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2020
- 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
May 7, 2020 15:45

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
200508-003HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  0.005 mg/l
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  0.005 mg/l
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  0.006 mg/l
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  0.016 mg/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2020
Collected
May 7, 2020 15:48

Sampling point
SM2 Location withheld

Sample type
Routine

Lab sample
200508-003TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  11.7 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  6.21 ug/l
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  13.7 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  18.3 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950
  
  Result
  49.9 ug/l
  
  Monitoring period
  Jan 1, 2020 – Dec 31, 2020

Routine (10).