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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 251–260 of 345 samples, newest first — collected September 28, 2010 to March 15, 2012. The summary above covers all 345.

62 results from the 10 samples listed here: 4 detected, 58 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 251 to 260 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
Mar 15, 2012 14:01
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120316-034
Laboratory
Radiation Safety Engineering
1.5 pci/l , sample collected Mar 15, 2012 14:01, sampling point TF080 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 14:01, sampling point TF080 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.277 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 14:01, sampling point TF080 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.38 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 14:01, sampling point TF080 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 15, 2012 13:35
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
120316-017
Laboratory
Radiation Safety Engineering
0.5 pci/l , sample collected Mar 15, 2012 13:35, sampling point TF081 Gross Alpha, Incl. Radon & U 4002 EPA method 00-02 Not recorded
Not detected below 0.35 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 13:35, sampling point TF081 Combined Radium (-226 & -228) 4010 Not recorded
Not detected below 0.267 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 13:35, sampling point TF081 Radium-226 4020 EPA method 903.1 Jan 1, 2012 – Mar 31, 2012
Not detected below 0.35 pci/l Minimum Reporting Level , sample collected Mar 15, 2012 13:35, sampling point TF081 Radium-228 4030 EPA method 904.0 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 15, 2012 14:01
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
120316-034RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 15, 2012 14:01, sampling point TF080 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Mar 15, 2012 13:36
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
120316-017RU
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 15, 2012 13:36, sampling point TF081 Combined Uranium 4006 EPA method 200.8 Jan 1, 2012 – Mar 31, 2012
Collected
Apr 4, 2011
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
110405-090NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF080 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Apr 4, 2011
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
110405-074NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF081 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF081 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Apr 4, 2011, sampling point TF081 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Nov 9, 2010
Sampling point
TF081 Treatment Plant T081
Sample type
Routine
Lab sample
101110-003VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF081 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Nov 9, 2010
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
101110-002VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Nov 9, 2010, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Collected
Sep 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100929-020PB
Laboratory
MSDH Lab
0.0295 mg/l , sample collected Sep 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 28, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100929-019PB
Laboratory
MSDH Lab
0.0112 mg/l , sample collected Sep 28, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Sep 28, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).