Chemical and radiological sample results

MS0510005 , Duffee Water Association

32 of the 72 analytes this system has been tested for have been detected at least once, across 173 samples on record.

The other 40 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 173 samples on record, detections range from October 13, 2003 to December 2, 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 Duffee Water Association, 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	Jul 31, 2007	Sep 12, 2023
Lead 1030	Inorganic Chemical	18 of 66 results	Jul 31, 2007	Sep 12, 2023
Barium 1010	Inorganic Chemical	10 of 10 results	Oct 13, 2003	Dec 2, 2025
TTHM 2950	Organic Chemical	7 of 19 results	Jul 19, 2004	Sep 9, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	7 of 20 results	Jun 16, 2010	Aug 13, 2024
Chromium 1020	Inorganic Chemical	7 of 10 results	Oct 13, 2003	May 8, 2019
Dichloroacetic Acid 2451	Organic Chemical	5 of 15 results	Jun 10, 2019	Sep 9, 2025
Bromodichloromethane 2943	Organic Chemical	5 of 14 results	Sep 24, 2007	Sep 9, 2025
Chloroform 2941	Organic Chemical	4 of 14 results	Sep 24, 2007	Sep 9, 2025
Dibromochloromethane 2944	Organic Chemical	3 of 14 results	Sep 24, 2007	Sep 9, 2025
Sodium 1052	Inorganic Chemical	3 of 3 results	Mar 26, 2010	Feb 25, 2025
Nickel 1036	Inorganic Chemical	3 of 10 results	Nov 3, 2008	May 8, 2019
Sulfate 1055	Inorganic Chemical	3 of 3 results	Oct 13, 2003	Mar 26, 2010
Fluoride 1025	Inorganic Chemical	2 of 11 results	Mar 26, 2010	Dec 2, 2025
Xylenes, Total 2955	Organic Chemical	2 of 22 results	Aug 13, 2008	Jul 6, 2011
Trichloroacetic Acid 2452	Organic Chemical	1 of 15 results	Jun 10, 2019	Jun 10, 2019
Ethylbenzene 2992	Organic Chemical	1 of 22 results	Jul 6, 2011	Jul 6, 2011
Calcium 1016	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Chloride 1017	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Iron 1028	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Magnesium 1031	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Manganese 1032	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Potassium 1042	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Residue, Total, Filterable 1057	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Alkalinity, Caco3 Stability 1067	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Carbon Dioxide 1901	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Color 1905	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Hardness, Total (As Caco3) 1915	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Alkalinity, Total 1927	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Iron, Field Result FEFD	Inorganic Chemical	1 of 1 result	Mar 26, 2010	Mar 26, 2010
Calculated Sodium NACA	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010
PH, Field Result PHFD	Water Quality	1 of 1 result	Mar 26, 2010	Mar 26, 2010

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 141–150 of 173 samples, newest first — collected July 31, 2007 to May 28, 2008. The summary above covers all 173.

46 results from the 10 samples listed here: 16 detected, 30 not detected. Across the whole record it is 162 of 1,002. 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 Duffee Water Association, every result from 141 to 150 of 173 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 May 28, 2008 Sampling point TF081 Sample type Routine Lab sample 080529-010VO Laboratory MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Xylenes, Total 2955 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Dichloromethane 2964 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	O-Dichlorobenzene 2968 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	P-Dichlorobenzene 2969 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Vinyl Chloride 2976 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,1-Dichloroethylene 2977 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,2-Dichloroethane 2980 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,1,1-Trichloroethane 2981 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Carbon Tetrachloride 2982 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,2-Dichloropropane 2983 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Trichloroethylene 2984 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	1,1,2-Trichloroethane 2985 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Tetrachloroethylene 2987 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Chlorobenzene 2989 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Benzene 2990 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Toluene 2991 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Ethylbenzene 2992 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Not detected below 0.0005 mg/l Method Detection Limit , sample collected May 28, 2008, sampling point TF081	Styrene 2996 EPA method 524.2	Apr 1, 2008 – Jun 30, 2008
Collected Sep 24, 2007 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 070925-014TH Laboratory MSDH Lab
1.09 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
1.31 ug/l , sample collected Sep 24, 2007, sampling point MRT000	Bromodichloromethane 2943 EPA method 524.2	Not recorded
1.17 ug/l , sample collected Sep 24, 2007, sampling point MRT000	Dibromochloromethane 2944 EPA method 524.2	Not recorded
3.57 ug/l , sample collected Sep 24, 2007, sampling point MRT000	TTHM 2950 EPA method 524.2	Jan 1, 2005 – Dec 31, 2007
Collected Aug 27, 2007 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample 070828-031HA Laboratory MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Monochloroacetic Acid 2450 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Dichloroacetic Acid 2451 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Trichloroacetic Acid 2452 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Monobromoacetic Acid 2453 EPA method 552.2	Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Dibromoacetic Acid 2454 EPA method 552.2	Not recorded
Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Aug 27, 2007, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456	Jan 1, 2005 – Dec 31, 2007
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-340PB Laboratory MSDH Lab
0.1702 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-339PB Laboratory MSDH Lab
0.0561 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-342PB Laboratory MSDH Lab
0.1027 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0011 mg/l , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-409PB Laboratory MSDH Lab
6.2427 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0084 mg/l , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-408PB Laboratory MSDH Lab
0.017 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0029 mg/l , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-407PB Laboratory MSDH Lab
0.4896 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
Collected Jul 31, 2007 Sampling point DS000 Distribution Sample type Routine Lab sample 070801-406PB Laboratory MSDH Lab
0.4679 mg/l , sample collected Jul 31, 2007, sampling point DS000	Copper, Free 1022 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008
0.0006 mg/l , sample collected Jul 31, 2007, sampling point DS000	Lead 1030 EPA method 200.8	Jan 1, 2006 – Dec 31, 2008

Collected
May 28, 2008

Sampling point
TF081

Sample type
Routine

Lab sample
080529-010VO

Laboratory
MSDH Lab

Monitoring period
Apr 1, 2008 – Jun 30, 2008
- 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
Sep 24, 2007

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
070925-014TH

Laboratory
MSDH Lab
- Chloroform 2941 EPA method 524.2
  
  Result
  1.09 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
  1.31 ug/l
  
  Monitoring period
  Not recorded
- Dibromochloromethane 2944 EPA method 524.2
  
  Result
  1.17 ug/l
  
  Monitoring period
  Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  3.57 ug/l
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
Collected
Aug 27, 2007

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
070828-031HA

Laboratory
MSDH Lab
- Monochloroacetic Acid 2450 EPA method 552.2
  
  Result
  Not detected below 0.002 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dichloroacetic Acid 2451 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Trichloroacetic Acid 2452 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Monobromoacetic Acid 2453 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Dibromoacetic Acid 2454 EPA method 552.2
  
  Result
  Not detected below 0.001 mg/l Minimum Reporting Level
  
  Monitoring period
  Not recorded
- Total Haloacetic Acids (Haa5) 2456
  
  Result
  Not detected below 0.006 mg/l Minimum Reporting Level
  
  Monitoring period
  Jan 1, 2005 – Dec 31, 2007
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-340PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1702 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0011 mg/l
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-339PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0561 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-342PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.1027 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0011 mg/l
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-409PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  6.2427 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0084 mg/l
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-408PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.017 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0029 mg/l
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-407PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.4896 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Jul 31, 2007

Sampling point
DS000 Distribution

Sample type
Routine

Lab sample
070801-406PB

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2006 – Dec 31, 2008
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.4679 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.0006 mg/l

Routine (10).