Chemical and radiological sample results

MS0510012 , North Decatur W/A #1

38 of the 72 analytes this system has been tested for have been detected at least once, across 335 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 335 samples on record, detections range from October 13, 2003 to July 9, 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 North Decatur W/A #1, 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	66 of 66 results	Aug 2, 2007	Jul 9, 2026
Lead 1030	Inorganic Chemical	33 of 66 results	Aug 2, 2007	Sep 12, 2023
Xylenes, Total 2955	Organic Chemical	24 of 111 results	May 21, 2012	Oct 20, 2014
Barium 1010	Inorganic Chemical	22 of 22 results	Oct 13, 2003	Jul 9, 2026
TTHM 2950	Organic Chemical	16 of 18 results	Jul 19, 2004	Aug 11, 2025
Sodium 1052	Inorganic Chemical	13 of 13 results	Mar 26, 2010	Jun 16, 2026
Chloroform 2941	Organic Chemical	12 of 13 results	Sep 24, 2007	Aug 11, 2025
Bromodichloromethane 2943	Organic Chemical	11 of 13 results	Sep 24, 2007	Aug 11, 2025
Chromium 1020	Inorganic Chemical	11 of 22 results	Oct 13, 2003	Jan 9, 2024
Dibromochloromethane 2944	Organic Chemical	10 of 13 results	Sep 24, 2007	Aug 11, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	10 of 18 results	Jun 16, 2010	Dec 2, 2024
Gross Alpha, Incl. Radon & U 4002	Radionuclide	10 of 15 results	Mar 13, 2012	Oct 3, 2012
Trichloroacetic Acid 2452	Organic Chemical	9 of 12 results	Aug 19, 2013	Dec 2, 2024
Fluoride 1025	Inorganic Chemical	6 of 25 results	Mar 26, 2010	Jul 9, 2026
Nitrate-Nitrite 1038	Inorganic Chemical	6 of 53 results	May 24, 2004	May 11, 2009
Nitrate 1040	Inorganic Chemical	6 of 53 results	May 24, 2004	May 11, 2009
Dichloroacetic Acid 2451	Organic Chemical	5 of 12 results	Aug 19, 2013	Dec 2, 2024
Sulfate 1055	Inorganic Chemical	5 of 5 results	Oct 13, 2003	Mar 26, 2010
Nickel 1036	Inorganic Chemical	4 of 19 results	Apr 4, 2005	Mar 31, 2014
Cyanide 1024	Inorganic Chemical	3 of 18 results	May 22, 2017	Mar 8, 2021
Calcium 1016	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Chloride 1017	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Magnesium 1031	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Manganese 1032	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Potassium 1042	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Residue, Total, Filterable 1057	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Alkalinity, Caco3 Stability 1067	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Carbon Dioxide 1901	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Color 1905	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Hardness, Total (As Caco3) 1915	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Alkalinity, Total 1927	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Iron, Field Result FEFD	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Calculated Sodium NACA	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
PH, Field Result PHFD	Water Quality	3 of 3 results	Mar 26, 2010	Mar 26, 2010
Thallium, Total 1085	Inorganic Chemical	2 of 22 results	Apr 28, 2020	Apr 28, 2020
Ethylbenzene 2992	Organic Chemical	2 of 111 results	Jan 30, 2013	Jan 30, 2013
Iron 1028	Inorganic Chemical	2 of 3 results	Mar 26, 2010	Mar 26, 2010
Nitrite 1041	Inorganic Chemical	1 of 53 results	Mar 9, 2022	Mar 9, 2022

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 301–310 of 335 samples, newest first — collected August 2, 2007 to September 23, 2009. The summary above covers all 335.

43 results from the 10 samples listed here: 18 detected, 25 not detected. Across the whole record it is 331 of 3,164. 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 North Decatur W/A #1, every result from 301 to 310 of 335 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 Sep 23, 2009 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 090924-015VO Laboratory MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, 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 Sep 23, 2009, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2005 – Dec 31, 2010
Collected May 11, 2009 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 090512-075NI Laboratory MSDH Lab
1 mg/l , sample collected May 11, 2009, sampling point TF080	Nitrate-Nitrite 1038 EPA method 353.2	Jan 1, 2009 – Dec 31, 2009
1 mg/l , sample collected May 11, 2009, sampling point TF080	Nitrate 1040 EPA method 353.2	Jan 1, 2009 – Dec 31, 2009
Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 11, 2009, sampling point TF080	Nitrite 1041 EPA method 353.2	Jan 1, 2009 – Dec 31, 2009
Collected Jul 9, 2008 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample 080710-014NI Laboratory MSDH Lab
1 mg/l , sample collected Jul 9, 2008, sampling point TF080	Nitrate-Nitrite 1038 EPA method 353.2	Jan 1, 2008 – Dec 31, 2008
1 mg/l , sample collected Jul 9, 2008, sampling point TF080	Nitrate 1040 EPA method 353.2	Jan 1, 2008 – Dec 31, 2008
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jul 9, 2008, sampling point TF080	Nitrite 1041 EPA method 353.2	Jan 1, 2008 – Dec 31, 2008
Collected Sep 24, 2007 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 070925-014HA Laboratory MSDH Lab
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2005 – Dec 31, 2007
Collected Sep 24, 2007 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 070925-008TH Laboratory MSDH Lab
3.17 ug/l , sample collected Sep 24, 2007, sampling point MRT000	Chloroform 2941 EPA method 524.2	Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 24, 2007, sampling point MRT000	Bromoform 2942 EPA method 524.2	Not recorded
2.97 ug/l , sample collected Sep 24, 2007, sampling point MRT000	Bromodichloromethane 2943 EPA method 524.2	Not recorded
1.91 ug/l , sample collected Sep 24, 2007, sampling point MRT000	Dibromochloromethane 2944 EPA method 524.2	Not recorded
8.05 ug/l , sample collected Sep 24, 2007, sampling point MRT000	TTHM 2950 EPA method 524.2	Jan 1, 2005 – Dec 31, 2007
Collected Aug 2, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070803-310PB Laboratory MSDH Lab
0.0362 mg/l , sample collected Aug 2, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.001 mg/l , sample collected Aug 2, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Aug 2, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070803-428PB Laboratory MSDH Lab
0.0622 mg/l , sample collected Aug 2, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0032 mg/l , sample collected Aug 2, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Aug 2, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070803-306PB Laboratory MSDH Lab
0.1811 mg/l , sample collected Aug 2, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0006 mg/l , sample collected Aug 2, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Aug 2, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070803-422PB Laboratory MSDH Lab
0.0311 mg/l , sample collected Aug 2, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0007 mg/l , sample collected Aug 2, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Aug 2, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070803-419PB Laboratory MSDH Lab
0.1258 mg/l , sample collected Aug 2, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0014 mg/l , sample collected Aug 2, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008

Collected
Sep 23, 2009

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
090924-015VO

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
May 11, 2009

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
090512-075NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2009 – Dec 31, 2009
- Nitrate-Nitrite 1038 EPA method 353.2
  
  Result
  1 mg/l
- Nitrate 1040 EPA method 353.2
  
  Result
  1 mg/l
- Nitrite 1041 EPA method 353.2
  
  Result
  Not detected below 0.05 mg/l Minimum Reporting Level
Collected
Jul 9, 2008

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
080710-014NI

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2008 – Dec 31, 2008
- Nitrate-Nitrite 1038 EPA method 353.2
  
  Result
  1 mg/l
- Nitrate 1040 EPA method 353.2
  
  Result
  1 mg/l
- Nitrite 1041 EPA method 353.2
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Sep 24, 2007

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
070925-014HA

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2005 – Dec 31, 2007
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 0.006 mg/l Minimum Reporting Level
Collected
Sep 24, 2007

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
070925-008TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  3.17 ug/l
  
  Monitoring period
  Not recorded
- Bromoform 2942 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Bromodichloromethane 2943 EPA method 524.2
  
  Result
  2.97 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  1.91 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  8.05 ug/l
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
Collected
Aug 2, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070803-310PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0362 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.001 mg/l
Collected
Aug 2, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070803-428PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0622 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0032 mg/l
Collected
Aug 2, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070803-306PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1811 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0006 mg/l
Collected
Aug 2, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070803-422PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0311 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0007 mg/l
Collected
Aug 2, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070803-419PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1258 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0014 mg/l

Routine (10).