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 341–345 of 345 samples, newest first — collected November 5, 2003 to March 16, 2004. The summary above covers all 345.

47 results from the 5 samples listed here: 6 detected, 41 not detected. 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 341 to 345 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 16, 2004 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 040317-017VO Laboratory MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,2,4-Trichlorobenzene 2378	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Cis-1,2-Dichloroethylene 2380	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Xylenes, Total 2955	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Dichloromethane 2964	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	O-Dichlorobenzene 2968	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	P-Dichlorobenzene 2969	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Vinyl Chloride 2976	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,1-Dichloroethylene 2977	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Trans-1,2-Dichloroethylene 2979	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,2-Dichloroethane 2980	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,1,1-Trichloroethane 2981	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Carbon Tetrachloride 2982	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,2-Dichloropropane 2983	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Trichloroethylene 2984	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	1,1,2-Trichloroethane 2985	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Tetrachloroethylene 2987	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Chlorobenzene 2989	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Benzene 2990	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Toluene 2991	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Ethylbenzene 2992	Jan 1, 2004 – Mar 31, 2004
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Mar 16, 2004, sampling point TF080	Styrene 2996	Jan 1, 2004 – Mar 31, 2004
Collected Nov 5, 2003 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 031106-022IN Laboratory MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Arsenic 1005 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
0.33 mg/l , sample collected Nov 5, 2003, sampling point TF080	Barium 1010 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Cadmium 1015 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Chromium 1020 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
0.115 mg/l , sample collected Nov 5, 2003, sampling point TF080	Fluoride 1025 EPA method 300.0	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Mercury 1035 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Selenium 1045 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
8.93 mg/l , sample collected Nov 5, 2003, sampling point TF080	Sulfate 1055 EPA method 300.0	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Antimony, Total 1074 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Beryllium, Total 1075 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Thallium, Total 1085 EPA method 200.8	Jan 1, 2002 – Dec 31, 2004
Collected Nov 5, 2003 Sampling point TF081 Treatment Plant T081 Sample type Routine Lab sample 031106-021IN Laboratory MSDH Lab
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Arsenic 1005 EPA method 200.8	Not recorded
0.004 mg/l , sample collected Nov 5, 2003, sampling point TF081	Barium 1010 EPA method 200.8	Not recorded
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Cadmium 1015 EPA method 200.8	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Chromium 1020 EPA method 200.8	Not recorded
0.132 mg/l , sample collected Nov 5, 2003, sampling point TF081	Fluoride 1025 EPA method 300.0	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Mercury 1035 EPA method 200.8	Not recorded
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Selenium 1045 EPA method 200.8	Not recorded
11.9 mg/l , sample collected Nov 5, 2003, sampling point TF081	Sulfate 1055 EPA method 300.0	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Antimony, Total 1074 EPA method 200.8	Not recorded
Not detected below 0.0003 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Beryllium, Total 1075 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Thallium, Total 1085 EPA method 200.8	Not recorded
Collected Nov 5, 2003 Sampling point TF081 Treatment Plant T081 Sample type Routine Lab sample 031106-004CN Laboratory MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF081	Cyanide 1024 EPA method QC10204001X	Jan 1, 2002 – Dec 31, 2004
Collected Nov 5, 2003 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 031106-003CN Laboratory MSDH Lab
Not detected below 0.01 mg/l Minimum Reporting Level , sample collected Nov 5, 2003, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2002 – Dec 31, 2004

Collected
Mar 16, 2004

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
040317-017VO

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2004 – Mar 31, 2004
- 1,2,4-Trichlorobenzene 2378
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Cis-1,2-Dichloroethylene 2380
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Xylenes, Total 2955
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Dichloromethane 2964
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- O-Dichlorobenzene 2968
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- P-Dichlorobenzene 2969
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Vinyl Chloride 2976
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1-Dichloroethylene 2977
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trans-1,2-Dichloroethylene 2979
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloroethane 2980
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,1-Trichloroethane 2981
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Carbon Tetrachloride 2982
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloropropane 2983
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trichloroethylene 2984
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,2-Trichloroethane 2985
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Tetrachloroethylene 2987
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Chlorobenzene 2989
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Benzene 2990
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Toluene 2991
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Ethylbenzene 2992
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Styrene 2996
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
Collected
Nov 5, 2003

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
031106-022IN

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Barium 1010 EPA method 200.8
  
  Result
  0.33 mg/l
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Chromium 1020 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Fluoride 1025 EPA method 300.0
  
  Result
  0.115 mg/l
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.005 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Sulfate 1055 EPA method 300.0
  
  Result
  8.93 mg/l
  
  Monitoring period
  Not recorded
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0003 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2002 – Dec 31, 2004
Collected
Nov 5, 2003

Sampling point
TF081 Treatment Plant T081

Sample type
Routine

Lab sample
031106-021IN

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Barium 1010 EPA method 200.8
  
  Result
  0.004 mg/l
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0001 mg/l Minimum Reporting Level
- Chromium 1020 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Fluoride 1025 EPA method 300.0
  
  Result
  0.132 mg/l
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.005 mg/l Minimum Reporting Level
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Sulfate 1055 EPA method 300.0
  
  Result
  11.9 mg/l
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0003 mg/l Minimum Reporting Level
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Nov 5, 2003

Sampling point
TF081 Treatment Plant T081

Sample type
Routine

Lab sample
031106-004CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2002 – Dec 31, 2004
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.01 mg/l Minimum Reporting Level
Collected
Nov 5, 2003

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
031106-003CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2002 – Dec 31, 2004
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.01 mg/l Minimum Reporting Level

Routine (5).