Chemical and radiological sample results

MS0490022 , Stewart Water Assc #2

22 of the 57 analytes this system has been tested for have been detected at least once, across 142 samples on record.

The other 35 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 142 samples on record, detections range from October 8, 2003 to March 19, 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 Stewart Water Assc #2, 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	60 of 60 results	Sep 14, 2004	Aug 27, 2024
Lead 1030	Inorganic Chemical	55 of 60 results	Sep 14, 2004	Aug 27, 2024
Barium 1010	Inorganic Chemical	10 of 10 results	Oct 8, 2003	Mar 19, 2025
Fluoride 1025	Inorganic Chemical	9 of 10 results	Oct 8, 2003	Mar 19, 2025
TTHM 2950	Organic Chemical	7 of 7 results	Jul 21, 2004	Feb 25, 2025
Chromium 1020	Inorganic Chemical	6 of 10 results	Mar 10, 2004	May 8, 2019
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	5 of 7 results	Jun 16, 2010	Feb 25, 2025
Sodium 1052	Inorganic Chemical	3 of 3 results	Sep 24, 2019	Feb 25, 2025
Nickel 1036	Inorganic Chemical	3 of 10 results	Apr 29, 2013	Sep 27, 2022
Dichloroacetic Acid 2451	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Trichloroacetic Acid 2452	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Dibromoacetic Acid 2454	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Chloroform 2941	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Bromodichloromethane 2943	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Dibromochloromethane 2944	Organic Chemical	3 of 4 results	Aug 27, 2007	Jul 11, 2016
Arsenic 1005	Inorganic Chemical	2 of 10 results	May 8, 2019	Sep 27, 2022
Radium-226 4020	Radionuclide	2 of 7 results	Jun 25, 2018	Sep 10, 2019
Bromoform 2942	Organic Chemical	2 of 4 results	Aug 27, 2007	Aug 12, 2013
Nitrite 1041	Inorganic Chemical	2 of 22 results	Nov 21, 2005	May 13, 2009
Selenium 1045	Inorganic Chemical	2 of 10 results	Mar 10, 2004	Mar 8, 2006
Combined Radium (-226 & -228) 4010	Radionuclide	1 of 7 results	Sep 10, 2019	Sep 10, 2019
Radium-228 4030	Radionuclide	1 of 7 results	Sep 10, 2019	Sep 10, 2019

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 142 samples, newest first — collected April 18, 2005 to June 30, 2005. The summary above covers all 142.

47 results from the 10 samples listed here: 17 detected, 30 not detected. Across the whole record it is 188 of 604. 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 Stewart Water Assc #2, every result from 111 to 120 of 142 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 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-093PB Laboratory MSDH Lab
0.1286 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0019 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-090PB Laboratory MSDH Lab
0.0508 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0024 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-136PB Laboratory MSDH Lab
0.0348 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0013 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-132PB Laboratory MSDH Lab
0.0203 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0012 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-133PB Laboratory MSDH Lab
0.016 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0023 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-092PB Laboratory MSDH Lab
0.0636 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0018 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 30, 2005 Sampling point DS000 Distribution Sample type Routine Lab sample 050701-091PB Laboratory MSDH Lab
0.3945 mg/l , sample collected Jun 30, 2005, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
0.0046 mg/l , sample collected Jun 30, 2005, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2005 – Jun 30, 2005
Collected Jun 14, 2005 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 050615-006VO Laboratory MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	Dichloromethane 2964 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	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 Jun 14, 2005, sampling point TF101	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	Benzene 2990 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	Toluene 2991 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jun 14, 2005, sampling point TF101	Styrene 2996 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Collected Apr 18, 2005 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 050419-085CN Laboratory MSDH Lab
Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Cyanide 1024 EPA method QC10204001X	Jan 1, 2005 – Dec 31, 2007
Collected Apr 18, 2005 Sampling point TF101 Treatment Plant T101 Sample type Routine Lab sample 050419-147IN Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Arsenic 1005 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
0.003212 mg/l , sample collected Apr 18, 2005, sampling point TF101	Barium 1010 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Cadmium 1015 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
0.001321 mg/l , sample collected Apr 18, 2005, sampling point TF101	Chromium 1020 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
0.145936 mg/l , sample collected Apr 18, 2005, sampling point TF101	Fluoride 1025 EPA method 380-75WE	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Mercury 1035 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Nickel 1036 EPA method 200.8	Not recorded
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Selenium 1045 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Antimony, Total 1074 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Beryllium, Total 1075 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 18, 2005, sampling point TF101	Thallium, Total 1085 EPA method 200.8	Jan 1, 2005 – Dec 31, 2007

Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-093PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1286 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0019 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-090PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0508 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0024 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-136PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0348 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0013 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-132PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0203 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0012 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-133PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.016 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0023 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-092PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0636 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0018 mg/l
Collected
Jun 30, 2005

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
050701-091PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Jun 30, 2005
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.3945 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0046 mg/l
Collected
Jun 14, 2005

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
050615-006VO

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Dec 31, 2010
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.0005 mg/l Method Detection Limit
Collected
Apr 18, 2005

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
050419-085CN

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Dec 31, 2007
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.005 mg/l Minimum Reporting Level
Collected
Apr 18, 2005

Sampling point
TF101 Treatment Plant T101

Sample type
Routine

Lab sample
050419-147IN

Laboratory
MSDH Lab
- Arsenic 1005 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Barium 1010 EPA method 200.8
  
  Result
  0.003212 mg/l
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Cadmium 1015 EPA method 200.8
  
  Result
  Not detected below 0.0001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Chromium 1020 EPA method 200.8
  
  Result
  0.001321 mg/l
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Fluoride 1025 EPA method 380-75WE
  
  Result
  0.145936 mg/l
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Mercury 1035 EPA method 200.8
  
  Result
  Not detected below 0.0002 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Nickel 1036 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Selenium 1045 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Antimony, Total 1074 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Beryllium, Total 1075 EPA method 200.8
  
  Result
  Not detected below 0.0001 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
- Thallium, Total 1085 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007

Routine (10).