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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

MS0790005 , Old River Water Assn

44 of the 74 analytes this system has been tested for have been detected at least once, across 345 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 345 samples on record, detections range from November 5, 2003 to June 22, 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 Old River Water Assn, 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 140 of 140 results Sep 19, 2007 Aug 27, 2025
Lead 1030 Inorganic Chemical 51 of 140 results Sep 20, 2007 Aug 27, 2025
Barium 1010 Inorganic Chemical 30 of 30 results Nov 5, 2003 Jun 22, 2026
Fluoride 1025 Inorganic Chemical 26 of 31 results Nov 5, 2003 Jun 22, 2026
TTHM 2950 Organic Chemical 16 of 18 results Sep 1, 2004 Sep 16, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 15 of 18 results Aug 5, 2010 May 19, 2026
Chloroform 2941 Organic Chemical 13 of 14 results Sep 19, 2007 Sep 16, 2025
Bromodichloromethane 2943 Organic Chemical 12 of 14 results Sep 19, 2007 Sep 16, 2025
Chromium 1020 Inorganic Chemical 12 of 30 results Apr 5, 2004 Mar 31, 2025
Dichloroacetic Acid 2451 Organic Chemical 10 of 14 results Sep 16, 2013 May 19, 2026
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Mar 15, 2012 Oct 10, 2012
Monochloroacetic Acid 2450 Organic Chemical 9 of 14 results Mar 11, 2024 May 19, 2026
Nickel 1036 Inorganic Chemical 9 of 29 results Apr 5, 2004 Nov 20, 2024
Sodium 1052 Inorganic Chemical 6 of 6 results Dec 30, 2008 Jun 22, 2026
Dibromochloromethane 2944 Organic Chemical 6 of 14 results Aug 5, 2010 Sep 16, 2025
Arsenic 1005 Inorganic Chemical 6 of 30 results Apr 2, 2014 Feb 23, 2022
Trichloroacetic Acid 2452 Organic Chemical 5 of 14 results May 5, 2025 May 19, 2026
Monobromoacetic Acid 2453 Organic Chemical 5 of 14 results Oct 26, 2020 May 19, 2026
Sulfate 1055 Inorganic Chemical 5 of 5 results Nov 5, 2003 Dec 30, 2008
Gross Alpha Particle Activity 4109 Radionuclide 4 of 4 results Jun 21, 2012 Jan 16, 2013
Xylenes, Total 2955 Organic Chemical 3 of 33 results Sep 6, 2012 Nov 6, 2013
Selenium 1045 Inorganic Chemical 3 of 30 results Apr 5, 2004 May 2, 2005
Cadmium 1015 Inorganic Chemical 2 of 30 results May 2, 2005 May 2, 2005
Nitrite 1041 Inorganic Chemical 1 of 50 results May 27, 2020 May 27, 2020
Ethylbenzene 2992 Organic Chemical 1 of 33 results May 8, 2013 May 8, 2013
Nitrate-Nitrite 1038 Inorganic Chemical 1 of 50 results Nov 7, 2012 Nov 7, 2012
Nitrate 1040 Inorganic Chemical 1 of 50 results Nov 7, 2012 Nov 7, 2012
Calcium 1016 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Chloride 1017 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Iron 1028 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Magnesium 1031 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Manganese 1032 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Potassium 1042 Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Residue, Total, Filterable 1057 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Alkalinity, Caco3 Stability 1067 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Carbon Dioxide 1901 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Color 1905 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Hardness, Total (As Caco3) 1915 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
PH 1925 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Alkalinity, Total 1927 Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Iron, Field Result FEFD Inorganic Chemical 1 of 1 result Dec 30, 2008 Dec 30, 2008
Calculated Sodium NACA Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
PH, Field Result PHFD Water Quality 1 of 1 result Dec 30, 2008 Dec 30, 2008
Mercury 1035 Inorganic Chemical 1 of 30 results Apr 5, 2004 Apr 5, 2004

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 111–120 of 345 samples, newest first — collected October 22, 2019 to June 10, 2020. The summary above covers all 345.

46 results from the 10 samples listed here: 4 detected, 42 not detected. Across the whole record it is 419 of 1,745. 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 Old River Water Assn, every result from 111 to 120 of 345 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 10, 2020 14:00
Sampling point
TF083 Treatment Facility TF083
Sample type
Routine
Lab sample
200611-009RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 10, 2020 14:00, sampling point TF083 Combined Uranium 4006 EPA method 200.8 Apr 1, 2020 – Jun 30, 2020
Collected
Jun 10, 2020 14:10
Sampling point
TF111 Treatment Plant T111
Sample type
Routine
Lab sample
200611-004CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Jun 10, 2020 14:10, sampling point TF111 Cyanide 1024 EPA method QC10204001X Apr 1, 2020 – Jun 30, 2020
Collected
May 27, 2020 15:45
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
200528-056NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 27, 2020 15:45, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 27, 2020 15:45, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 27, 2020 15:45, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
May 27, 2020 16:15
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
200528-055NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 27, 2020 16:15, sampling point TF104 Nitrate-Nitrite 1038 EPA method QC10107041C Apr 1, 2020 – Jun 30, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 27, 2020 16:15, sampling point TF104 Nitrate 1040 EPA method QC10107041C Apr 1, 2020 – Jun 30, 2020
0.03 mg/l , sample collected May 27, 2020 16:15, sampling point TF104 Nitrite 1041 EPA method QC10107041C Apr 1, 2020 – Jun 30, 2020
Collected
May 27, 2020 16:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
200528-054NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 27, 2020 16:00, sampling point TF080 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 27, 2020 16:00, sampling point TF080 Nitrate 1040 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 27, 2020 16:00, sampling point TF080 Nitrite 1041 EPA method QC10107041C Jan 1, 2020 – Dec 31, 2020
Collected
Mar 2, 2020 16:00
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
200303-013IN
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Mar 2, 2020 16:00, sampling point TF104 Arsenic 1005 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
0.0737 mg/l , sample collected Mar 2, 2020 16:00, sampling point TF104 Barium 1010 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Cadmium 1015 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Chromium 1020 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
0.111 mg/l , sample collected Mar 2, 2020 16:00, sampling point TF104 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Mercury 1035 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Selenium 1045 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Antimony, Total 1074 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 2, 2020 16:00, sampling point TF104 Thallium, Total 1085 EPA method 200.8 Jan 1, 2020 – Mar 31, 2020
Collected
Feb 19, 2020 11:30
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
200220-006CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Feb 19, 2020 11:30, sampling point TF104 Cyanide 1024 EPA method QC10204001X Jan 1, 2020 – Mar 31, 2020
Collected
Nov 6, 2019 12:20
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
191107-014VO
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Xylenes, Total 2955 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Dichloromethane 2964 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 O-Dichlorobenzene 2968 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 P-Dichlorobenzene 2969 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Vinyl Chloride 2976 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,1-Dichloroethylene 2977 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,2-Dichloroethane 2980 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,1,1-Trichloroethane 2981 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Carbon Tetrachloride 2982 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,2-Dichloropropane 2983 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Trichloroethylene 2984 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 1,1,2-Trichloroethane 2985 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Tetrachloroethylene 2987 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Chlorobenzene 2989 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Benzene 2990 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Toluene 2991 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Ethylbenzene 2992 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Nov 6, 2019 12:20, sampling point TF104 Styrene 2996 EPA method 524.2 Oct 1, 2019 – Dec 31, 2019
Collected
Oct 22, 2019 14:00
Sampling point
TF104 Treatment Facility TF104
Sample type
Routine
Lab sample
191023-020CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 22, 2019 14:00, sampling point TF104 Cyanide 1024 EPA method QC10204001X Oct 1, 2019 – Dec 31, 2019
Collected
Oct 22, 2019 13:00
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
191023-019CN
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 22, 2019 13:00, sampling point TF080 Cyanide 1024 EPA method QC10204001X Jan 1, 2017 – Dec 31, 2019

Routine (10).