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
MS0060008 , Town of Duncan
27 of the 58 analytes this system has been tested for have been detected at least once, across 278 samples on record.
The other 31 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 278 samples on record, detections range from July 20, 1993 to September 18, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 65 of 84 results | Jul 20, 1993 | Sep 18, 2025 |
| Lead 1030 | Inorganic Chemical | 55 of 84 results | Jul 20, 1993 | Sep 18, 2025 |
| TTHM 2950 | Organic Chemical | 43 of 45 results | Sep 27, 2004 | Mar 18, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 36 of 40 results | Jun 21, 2007 | Mar 18, 2025 |
| Chloroform 2941 | Organic Chemical | 24 of 24 results | Jun 21, 2007 | Oct 15, 2020 |
| Bromodichloromethane 2943 | Organic Chemical | 24 of 24 results | Jun 21, 2007 | Oct 15, 2020 |
| Dibromochloromethane 2944 | Organic Chemical | 24 of 24 results | Jun 21, 2007 | Oct 15, 2020 |
| Dichloroacetic Acid 2451 | Organic Chemical | 22 of 22 results | Aug 18, 2008 | Oct 15, 2020 |
| Trichloroacetic Acid 2452 | Organic Chemical | 22 of 22 results | Aug 18, 2008 | Oct 15, 2020 |
| Dibromoacetic Acid 2454 | Organic Chemical | 22 of 22 results | Aug 18, 2008 | Oct 15, 2020 |
| Bromoform 2942 | Organic Chemical | 21 of 24 results | Aug 18, 2008 | Oct 15, 2020 |
| Barium 1010 | Inorganic Chemical | 20 of 20 results | Jan 29, 2002 | Jan 15, 2025 |
| Chromium 1020 | Inorganic Chemical | 16 of 20 results | Jan 29, 2002 | Jan 15, 2025 |
| Fluoride 1025 | Inorganic Chemical | 15 of 15 results | Jan 29, 2002 | Jan 15, 2025 |
| Selenium 1045 | Inorganic Chemical | 10 of 20 results | Jan 28, 2004 | Mar 27, 2024 |
| Nickel 1036 | Inorganic Chemical | 9 of 20 results | Mar 21, 2005 | May 2, 2017 |
| Arsenic 1005 | Inorganic Chemical | 8 of 20 results | Mar 21, 2005 | Jan 15, 2025 |
| Monochloroacetic Acid 2450 | Organic Chemical | 5 of 22 results | Aug 18, 2008 | Jan 13, 2020 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 7, 2011 | Jul 11, 2012 |
| Monobromoacetic Acid 2453 | Organic Chemical | 4 of 22 results | Jun 26, 2018 | Oct 15, 2020 |
| Xylenes, Total 2955 | Organic Chemical | 4 of 23 results | Sep 18, 2012 | Jul 11, 2013 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 4 of 4 results | Jun 21, 2012 | Jan 23, 2013 |
| Nitrite 1041 | Inorganic Chemical | 2 of 35 results | Jan 10, 2022 | Jan 10, 2022 |
| Sodium 1052 | Inorganic Chemical | 2 of 2 results | Oct 28, 2019 | Oct 28, 2019 |
| Thallium, Total 1085 | Inorganic Chemical | 1 of 20 results | Aug 19, 2008 | Aug 19, 2008 |
| Antimony, Total 1074 | Inorganic Chemical | 1 of 20 results | Mar 21, 2005 | Mar 21, 2005 |
| Beryllium, Total 1075 | Inorganic Chemical | 1 of 20 results | Mar 21, 2005 | Mar 21, 2005 |
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 191–200 of 278 samples, newest first — collected June 29, 2009 to July 25, 2011. The summary above covers all 278.
51 results from the 10 samples listed here: 29 detected, 22 not detected. Across the whole record it is 465 of 1,323. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.
| Result | Analyte | Monitoring period |
|---|---|---|
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Arsenic 1005 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.002034 mg/l , sample collected Jul 25, 2011 10:56, sampling point TF102 | Barium 1010 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Cadmium 1015 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.002528 mg/l , sample collected Jul 25, 2011 10:56, sampling point TF102 | Chromium 1020 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| 0.351 mg/l , sample collected Jul 25, 2011 10:56, sampling point TF102 | Fluoride 1025 EPA method 380-75WE | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Mercury 1035 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Nickel 1036 EPA method 200.8 | Not recorded |
| Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Selenium 1045 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Antimony, Total 1074 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Beryllium, Total 1075 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jul 25, 2011 10:56, sampling point TF102 | Thallium, Total 1085 EPA method 200.8 | Jan 1, 2011 – Dec 31, 2013 |
|
||
| 18.2 ug/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 3.13 ug/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 16.9 ug/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 15.7 ug/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 53.9 ug/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.012 mg/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.008 mg/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.024 mg/l , sample collected Jul 11, 2011 02:50, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| Not detected below 15 ug/l Minimum Reporting Level , sample collected Jun 20, 2011, sampling point TF102 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2011 – Dec 31, 2013 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 31, 2011, sampling point TF102 | 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 Jan 31, 2011, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 31, 2011, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2011 – Dec 31, 2011 |
|
||
| 22.5 ug/l , sample collected Aug 18, 2010, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| 3.26 ug/l , sample collected Aug 18, 2010, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 22.4 ug/l , sample collected Aug 18, 2010, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 19.4 ug/l , sample collected Aug 18, 2010, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 67.56 ug/l , sample collected Aug 18, 2010, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 18, 2010, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.01 mg/l , sample collected Aug 18, 2010, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.01 mg/l , sample collected Aug 18, 2010, 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 18, 2010, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Aug 18, 2010, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.02 mg/l , sample collected Aug 18, 2010, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 19, 2010, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected May 19, 2010, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected May 19, 2010, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| 12.6 ug/l , sample collected Jun 29, 2009, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 4.82 ug/l , sample collected Jun 29, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 2.35 ug/l , sample collected Jun 29, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 19.77 ug/l , sample collected Jun 29, 2009, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2009 – Dec 31, 2009 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 29, 2009, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.004 mg/l , sample collected Jun 29, 2009, sampling point MRT000 | Trichloroacetic Acid 2452 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| 0.001 mg/l , sample collected Jun 29, 2009, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here. , sample collected Jun 29, 2009, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2009 – Dec 31, 2009 |
-
- Collected
- Jul 25, 2011 10:56
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 110726-007IN
- Laboratory
- MSDH Lab
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Barium 1010 EPA method 200.8
- Result
- 0.002034 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Chromium 1020 EPA method 200.8
- Result
- 0.002528 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Fluoride 1025 EPA method 380-75WE
- Result
- 0.351 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
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 0.0025 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
- Collected
- Jul 11, 2011 02:50
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110712-019TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 18.2 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 3.13 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 16.9 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 15.7 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 53.9 ug/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
- Collected
- Jul 11, 2011 02:50
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 110712-019HA
- 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
- 0.012 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.008 mg/l
- 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
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.024 mg/l
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
- Collected
- Jun 20, 2011
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 110621-009CN
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2013
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 15 ug/l Minimum Reporting Level
-
- Collected
- Jan 31, 2011
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 110201-066NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2011 – Dec 31, 2011
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.1 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.08 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.02 mg/l Minimum Reporting Level
-
- Collected
- Aug 18, 2010
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 100819-006TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 22.5 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 524.2
- Result
- 3.26 ug/l
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 524.2
- Result
- 22.4 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 19.4 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 67.56 ug/l
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
- Collected
- Aug 18, 2010
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 100819-006HA
- 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
- 0.01 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.01 mg/l
- 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
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.02 mg/l
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
- Collected
- May 19, 2010
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 100520-011NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2010 – Dec 31, 2010
-
Nitrate-Nitrite 1038 EPA method 353.2
- Result
- Not detected below 0.25 mg/l Minimum Reporting Level
-
Nitrate 1040 EPA method 353.2
- Result
- Not detected below 0.2 mg/l Minimum Reporting Level
-
Nitrite 1041 EPA method 353.2
- Result
- Not detected below 0.05 mg/l Minimum Reporting Level
-
- Collected
- Jun 29, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090630-015TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 12.6 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
- 4.82 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.35 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 19.77 ug/l
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
- Collected
- Jun 29, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090630-009HA
- 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
- 0.004 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.004 mg/l
- 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
- 0.001 mg/l
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0 mg/l This result is recorded as a detection, and the figure the agency wrote — "0.00" — is zero to the precision it was written to. Read the zero as "smaller than the written figure resolves", not as "none present". SDWIS holds a separate numeric concentration that Drinking Water Watch does not publish, so this endpoint does not carry it either; no more precise magnitude is available here.
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
Routine (10).