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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

MS0240066 , Pass Christian Isles

40 of the 74 analytes this system has been tested for have been detected at least once, across 401 samples on record.

The other 34 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 401 samples on record, detections range from November 2, 1993 to February 11, 2025. 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 Pass Christian Isles, 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 137 of 185 results Nov 2, 1993 Oct 17, 2024
Copper, Free 1022 Inorganic Chemical 135 of 185 results Nov 2, 1993 Oct 17, 2024
Barium 1010 Inorganic Chemical 24 of 24 results Sep 15, 2003 Feb 11, 2025
Fluoride 1025 Inorganic Chemical 24 of 25 results Sep 15, 2003 Feb 11, 2025
Chromium 1020 Inorganic Chemical 14 of 24 results Sep 15, 2003 Apr 27, 2022
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 15 results Mar 5, 2012 Oct 4, 2012
Xylenes, Total 2955 Organic Chemical 9 of 72 results Jan 21, 2004 Jul 16, 2013
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 8 of 8 results Jul 21, 2004 Feb 11, 2025
TTHM 2950 Organic Chemical 8 of 8 results May 24, 2004 Feb 11, 2025
Sulfate 1055 Inorganic Chemical 6 of 7 results Sep 15, 2003 Dec 3, 2008
Chloroform 2941 Organic Chemical 5 of 5 results Aug 2, 2007 Jul 31, 2018
Bromodichloromethane 2943 Organic Chemical 4 of 5 results Aug 2, 2007 Jul 31, 2018
Selenium 1045 Inorganic Chemical 4 of 24 results Mar 7, 2005 Apr 9, 2008
Sodium 1052 Inorganic Chemical 3 of 3 results Dec 3, 2008 Feb 23, 2021
Dichloroacetic Acid 2451 Organic Chemical 3 of 4 results Sep 18, 2008 Sep 17, 2014
Dibromochloromethane 2944 Organic Chemical 3 of 5 results Aug 2, 2007 Sep 17, 2014
Ethylbenzene 2992 Organic Chemical 3 of 72 results Jan 21, 2004 May 8, 2012
Trichloroacetic Acid 2452 Organic Chemical 2 of 4 results Jul 17, 2012 Sep 17, 2014
Nickel 1036 Inorganic Chemical 2 of 24 results Jan 30, 2006 Jan 14, 2009
Monochloroacetic Acid 2450 Organic Chemical 1 of 4 results Jul 31, 2018 Jul 31, 2018
Dibromoacetic Acid 2454 Organic Chemical 1 of 4 results Jul 17, 2012 Jul 17, 2012
Calcium 1016 Inorganic Chemical 1 of 1 result Dec 3, 2008 Dec 3, 2008
Chloride 1017 Inorganic Chemical 1 of 1 result Dec 3, 2008 Dec 3, 2008
Manganese 1032 Inorganic Chemical 1 of 1 result Dec 3, 2008 Dec 3, 2008
Potassium 1042 Inorganic Chemical 1 of 1 result Dec 3, 2008 Dec 3, 2008
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Carbon Dioxide 1901 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Color 1905 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
PH 1925 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Alkalinity, Total 1927 Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Calculated Sodium NACA Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
PH, Field Result PHFD Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Temperature, Field Result TEMP Water Quality 1 of 1 result Dec 3, 2008 Dec 3, 2008
Carbon Tetrachloride 2982 Organic Chemical 1 of 72 results Oct 15, 2008 Oct 15, 2008
Nitrate 1040 Inorganic Chemical 1 of 52 results Aug 17, 2006 Aug 17, 2006
Mercury 1035 Inorganic Chemical 1 of 24 results Jan 30, 2006 Jan 30, 2006
Arsenic 1005 Inorganic Chemical 1 of 24 results Mar 7, 2005 Mar 7, 2005
Cadmium 1015 Inorganic Chemical 1 of 24 results Sep 15, 2003 Sep 15, 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 41–50 of 401 samples, newest first — collected July 19, 2018 to June 13, 2019. The summary above covers all 401.

64 results from the 10 samples listed here: 12 detected, 52 not detected. Across the whole record it is 425 of 2,481. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

Chemical and radiological sample results for Pass Christian Isles, every result from 41 to 50 of 401 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
Jun 13, 2019 13:30
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190614-007VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jun 13, 2019 13:30, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2019 – Dec 31, 2019
Collected
Feb 19, 2019 13:38
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
190220-044NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:38, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:38, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:38, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Feb 19, 2019 13:46
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
190220-043NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:46, sampling point TF103 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:46, sampling point TF103 Nitrate 1040 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 19, 2019 13:46, sampling point TF103 Nitrite 1041 EPA method QC10107041C Jan 1, 2019 – Dec 31, 2019
Collected
Oct 24, 2018 01:40
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
181025-013IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0061 mg/l , sample collected Oct 24, 2018 01:40, sampling point TF103 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.001 mg/l , sample collected Oct 24, 2018 01:40, sampling point TF103 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.27 mg/l , sample collected Oct 24, 2018 01:40, sampling point TF103 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 01:40, sampling point TF103 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Oct 24, 2018 07:12
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
181025-012IN
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.0061 mg/l , sample collected Oct 24, 2018 07:12, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
0.26 mg/l , sample collected Oct 24, 2018 07:12, sampling point TF101 Fluoride 1025 EPA method 300.0 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 24, 2018 07:12, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2017 – Dec 31, 2019
Collected
Aug 8, 2018 11:50
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
180809-014RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 8, 2018 11:50, sampling point TF101 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Aug 8, 2018 12:45
Sampling point
TF103 Treatment Plant T103
Sample type
Routine
Lab sample
180809-013RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Aug 8, 2018 12:45, sampling point TF103 Combined Uranium 4006 EPA method 200.8 Jan 1, 2013 – Dec 31, 2021
Collected
Jul 31, 2018 13:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180801-005TH
Laboratory
MSDH Lab
3.36 ug/l , sample collected Jul 31, 2018 13:05, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
1.04 ug/l , sample collected Jul 31, 2018 13:05, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
4.4 ug/l , sample collected Jul 31, 2018 13:05, sampling point MRT000 TTHM 2950 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 31, 2018 13:05
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
180801-005HA
Laboratory
MSDH Lab
0.003 mg/l , sample collected Jul 31, 2018 13:05, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 31, 2018 13:05, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.003 mg/l , sample collected Jul 31, 2018 13:05, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2017 – Dec 31, 2019
Collected
Jul 19, 2018 07:09
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
180720-005PB
Laboratory
MSDH Lab
0.0394 mg/l , sample collected Jul 19, 2018 07:09, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018
0.0022 mg/l , sample collected Jul 19, 2018 07:09, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2016 – Dec 31, 2018

Routine (10).