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This is a rebuild of Drinking Water Watch and not yet the official record. Use the agency’s current Drinking Water Watch for anything you need to rely on.

Chemical and radiological sample results

MS0240009 , City of Pass Christian

44 of the 74 analytes this system has been tested for have been detected at least once, across 686 samples on record.

The other 30 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 686 samples on record, detections range from July 28, 1992 to May 18, 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 Pass Christian, 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
Lead 1030 Inorganic Chemical 292 of 353 results Jul 28, 1992 Jul 22, 2024
Copper, Free 1022 Inorganic Chemical 263 of 353 results Jul 28, 1992 Jul 23, 2024
TTHM 2950 Organic Chemical 44 of 44 results Sep 13, 2004 May 18, 2026
Fluoride 1025 Inorganic Chemical 40 of 40 results Sep 10, 2003 Feb 11, 2025
Barium 1010 Inorganic Chemical 39 of 39 results Sep 10, 2003 Feb 11, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 38 of 40 results Sep 13, 2004 Mar 17, 2025
Chloroform 2941 Organic Chemical 37 of 37 results Sep 14, 2006 May 18, 2026
Bromodichloromethane 2943 Organic Chemical 34 of 37 results Sep 14, 2006 May 18, 2026
Dichloroacetic Acid 2451 Organic Chemical 29 of 32 results Jun 23, 2008 Nov 6, 2024
Trichloroacetic Acid 2452 Organic Chemical 29 of 32 results Jun 23, 2008 Nov 6, 2024
Chromium 1020 Inorganic Chemical 27 of 39 results Sep 10, 2003 Apr 26, 2022
Dibromochloromethane 2944 Organic Chemical 22 of 37 results Sep 14, 2006 May 18, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 5, 2012 Oct 2, 2012
Sodium 1052 Inorganic Chemical 9 of 9 results Mar 26, 2008 Jan 29, 2024
Selenium 1045 Inorganic Chemical 6 of 39 results Feb 4, 2004 May 22, 2017
Nickel 1036 Inorganic Chemical 6 of 39 results Apr 9, 2008 Apr 7, 2014
Gross Alpha Particle Activity 4109 Radionuclide 6 of 10 results Jun 28, 2012 Sep 16, 2013
Dibromoacetic Acid 2454 Organic Chemical 6 of 32 results Jun 23, 2008 Jun 17, 2013
Monochloroacetic Acid 2450 Organic Chemical 5 of 32 results Dec 7, 2009 Aug 1, 2018
Sulfate 1055 Inorganic Chemical 5 of 9 results Sep 10, 2003 Feb 4, 2004
Arsenic 1005 Inorganic Chemical 4 of 39 results Mar 9, 2005 Jan 8, 2024
Cyanide 1024 Inorganic Chemical 3 of 39 results Apr 9, 2008 May 12, 2021
Monobromoacetic Acid 2453 Organic Chemical 2 of 32 results Nov 13, 2017 Aug 1, 2018
Gross Alpha, Excl. Radon & U 4000 Radionuclide 2 of 2 results Sep 28, 2011 Dec 5, 2011
Combined Uranium 4006 Radionuclide 2 of 20 results Sep 28, 2011 Dec 5, 2011
Nitrite 1041 Inorganic Chemical 2 of 83 results Aug 17, 2006 Aug 17, 2006
Cadmium 1015 Inorganic Chemical 2 of 39 results Mar 9, 2005 Mar 9, 2005
Xylenes, Total 2955 Organic Chemical 1 of 53 results Oct 21, 2013 Oct 21, 2013
Calcium 1016 Inorganic Chemical 1 of 1 result Mar 26, 2008 Mar 26, 2008
Chloride 1017 Inorganic Chemical 1 of 1 result Mar 26, 2008 Mar 26, 2008
Magnesium 1031 Inorganic Chemical 1 of 1 result Mar 26, 2008 Mar 26, 2008
Manganese 1032 Inorganic Chemical 1 of 1 result Mar 26, 2008 Mar 26, 2008
Potassium 1042 Inorganic Chemical 1 of 1 result Mar 26, 2008 Mar 26, 2008
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Carbon Dioxide 1901 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Color 1905 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
PH 1925 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Alkalinity, Total 1927 Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Calculated Sodium NACA Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
PH, Field Result PHFD Water Quality 1 of 1 result Mar 26, 2008 Mar 26, 2008
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 83 results Aug 17, 2006 Aug 17, 2006
Nitrate 1040 Inorganic Chemical 1 of 83 results Aug 17, 2006 Aug 17, 2006

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

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The most recent samples, result by result

The table below lists 11–20 of 22 samples, newest first — collected November 6, 2024 to March 17, 2025. The summary above covers all 22.

58 results from the 10 samples listed here: 20 detected, 38 not detected. Across the whole record it is 981 of 3,062. 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 4 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 Pass Christian, every result from 11 to 20 of 22 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 17, 2025 08:50
Sampling point
SMT Location withheld
Sample type
Routine
Lab sample
TH-250318-006
Laboratory
MSDH Lab
4.91 ug/l , sample collected Mar 17, 2025 08:50, sampling point SMT TTHM 2950 EPA method 524.2 Not recorded
Collected
Mar 17, 2025 09:20
Sampling point
SMH Location withheld
Sample type
Routine
Lab sample
TH-250318-005
Laboratory
MSDH Lab
11.1 ug/l , sample collected Mar 17, 2025 09:20, sampling point SMH TTHM 2950 EPA method 524.2 Not recorded
Collected
Feb 11, 2025 08:05
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
IN-250212-056
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0117 mg/l , sample collected Feb 11, 2025 08:05, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.419 mg/l , sample collected Feb 11, 2025 08:05, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 08:05, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 11, 2025 07:20
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
IN-250212-055
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.0112 mg/l , sample collected Feb 11, 2025 07:20, sampling point TF102 Barium 1010 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
0.472 mg/l , sample collected Feb 11, 2025 07:20, sampling point TF102 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 11, 2025 07:20, sampling point TF102 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Dec 31, 2025
Collected
Feb 5, 2025 06:55
Sampling point
TF105 Treatment Facility TF105
Sample type
Routine
Lab sample
NI-250206-052
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 06:55, sampling point TF105 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 06:55, sampling point TF105 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 06:55, sampling point TF105 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 08:08
Sampling point
TF104 Treatment Plant T104
Sample type
Routine
Lab sample
NI-250206-049
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 08:08, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 08:08, sampling point TF104 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 08:08, sampling point TF104 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 07:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
NI-250206-051
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:40, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:40, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:40, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Feb 5, 2025 07:50
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
NI-250206-050
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:50, sampling point TF102 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:50, sampling point TF102 Nitrate 1040 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 5, 2025 07:50, sampling point TF102 Nitrite 1041 EPA method QC10107041C Jan 1, 2025 – Dec 31, 2025
Collected
Nov 6, 2024 07:40
Sampling point
SM1 Location withheld
Sample type
Routine
Lab sample
810-127128-2
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 07:40, sampling point SM1 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
1.7 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
1.6 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 07:40, sampling point SM1 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 07:40, sampling point SM1 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
3.3 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
4.2 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 07:40, sampling point SM1 Bromoform 2942 EPA method 524.2 Not recorded
1.9 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Bromodichloromethane 2943 EPA method 524.2 Not recorded
0.83 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 Dibromochloromethane 2944 EPA method 524.2 Not recorded
6.93 ug/l , sample collected Nov 6, 2024 07:40, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Nov 6, 2024 09:40
Sampling point
SM2 Location withheld
Sample type
Routine
Lab sample
810-127128-1
Laboratory
Eurofins Eaton Analytical South Bend in
Not detected below 2 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 09:40, sampling point SM2 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
5.2 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
4.9 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 09:40, sampling point SM2 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 09:40, sampling point SM2 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
10.1 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
12 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2024 09:40, sampling point SM2 Bromoform 2942 EPA method 524.2 Not recorded
3.8 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Bromodichloromethane 2943 EPA method 524.2 Not recorded
1.1 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 Dibromochloromethane 2944 EPA method 524.2 Not recorded
16.9 ug/l , sample collected Nov 6, 2024 09:40, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024

Routine (10).