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
MS0130015 , Siloam W/A #2-Griffith Well
22 of the 59 analytes this system has been tested for have been detected at least once, across 396 samples on record.
The other 37 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 396 samples on record, detections range from October 3, 1993 to April 20, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 102 of 128 results | Oct 3, 1993 | Jul 21, 2023 |
| Lead 1030 | Inorganic Chemical | 99 of 128 results | Oct 3, 1993 | Jul 21, 2023 |
| Barium 1010 | Inorganic Chemical | 35 of 35 results | Mar 19, 2002 | Feb 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 35 of 35 results | Mar 19, 2002 | Feb 3, 2025 |
| Chromium 1020 | Inorganic Chemical | 28 of 35 results | Jan 26, 2004 | Feb 3, 2025 |
| Arsenic 1005 | Inorganic Chemical | 17 of 35 results | Jan 26, 2004 | Feb 3, 2025 |
| Selenium 1045 | Inorganic Chemical | 13 of 35 results | Jan 26, 2004 | Apr 13, 2020 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 10 of 35 results | May 10, 2004 | Apr 7, 2025 |
| Nickel 1036 | Inorganic Chemical | 10 of 35 results | Feb 14, 2005 | Apr 13, 2020 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Sep 16, 2019 | Oct 15, 2024 |
| TTHM 2950 | Organic Chemical | 9 of 35 results | May 10, 2004 | Jan 25, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 6 of 6 results | Dec 7, 2011 | Jan 22, 2018 |
| Thallium, Total 1085 | Inorganic Chemical | 3 of 35 results | Apr 13, 2020 | Apr 13, 2020 |
| Dibromoacetic Acid 2454 | Organic Chemical | 2 of 9 results | Jun 29, 2009 | Apr 20, 2026 |
| Cyanide 1024 | Inorganic Chemical | 2 of 28 results | May 1, 2018 | May 1, 2018 |
| Bromoform 2942 | Organic Chemical | 2 of 10 results | Jun 6, 2007 | Jul 14, 2014 |
| Gross Alpha Particle Activity 4109 | Radionuclide | 2 of 4 results | Jun 27, 2012 | Sep 13, 2012 |
| Nitrite 1041 | Inorganic Chemical | 1 of 67 results | Jan 10, 2022 | Jan 10, 2022 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 9 results | Jul 14, 2014 | Jul 14, 2014 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 9 results | Jun 23, 2011 | Jun 23, 2011 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 1 of 67 results | Nov 29, 2004 | Nov 29, 2004 |
| Nitrate 1040 | Inorganic Chemical | 1 of 67 results | Nov 29, 2004 | Nov 29, 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 231–240 of 396 samples, newest first — collected May 12, 2008 to May 24, 2010. The summary above covers all 396.
40 results from the 10 samples listed here: 4 detected, 36 not detected. Across the whole record it is 389 of 1,891. 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 0.25 mg/l Minimum Reporting Level , sample collected May 24, 2010, sampling point TF101 | 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 24, 2010, sampling point TF101 | 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 24, 2010, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 24, 2010, sampling point TF103 | 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 24, 2010, sampling point TF103 | 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 24, 2010, sampling point TF103 | Nitrite 1041 EPA method 353.2 | Jan 1, 2010 – Dec 31, 2010 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , 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 |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , 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 |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 29, 2009, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , 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 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF101 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF101 | Nitrate 1040 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF101 | Nitrite 1041 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
|
||
| Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF103 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF103 | Nitrate 1040 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
| Not detected below 0.05 mg/l Minimum Reporting Level , sample collected Mar 23, 2009, sampling point TF103 | Nitrite 1041 EPA method 353.2 | Jan 1, 2009 – Dec 31, 2009 |
|
||
| Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, 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 26, 2008, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| Not detected below 0.006 mg/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2008 – Dec 31, 2008 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 26, 2008, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType. , sample collected Jun 26, 2008, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2008 – Dec 31, 2008 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2008 – Dec 31, 2008 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2008 – Dec 31, 2008 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected May 12, 2008, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2008 – Dec 31, 2008 |
-
- Collected
- May 24, 2010
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 100525-034NI
- 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
- May 24, 2010
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 100525-010NI
- 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
- 090630-009TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
- Collected
- Jun 29, 2009
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 090630-006HA
- 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
- 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
- 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
-
- Collected
- Mar 23, 2009
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 090324-072NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
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
- Mar 23, 2009
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 090324-071NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
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
- Mar 23, 2009
- Sampling point
- TF103 Treatment Plant T103
- Sample type
- Routine
- Lab sample
- 090324-030NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2009 – Dec 31, 2009
-
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 26, 2008
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 080627-014HA
- 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, 2008 – Dec 31, 2008
-
- Collected
- Jun 26, 2008
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 080627-014TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- 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
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 0 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. The agency recorded a value but no unit of measure for it. The unit is NOT inferable from the analyte: many analytes are reported in more than one unit — TTHM and HAA5 in both MG/L and UG/L — so there is no per-analyte default to fall back on. The number is published as it stands and must not be compared to a limit. The agency recorded which kind of limit this result was below, but stored 0.000000000 as the limit itself, which is not a level. The type is published and the value is null. What the limit was is not on record. Whether the result was a detection is a separate column: read resultType.
- Monitoring period
- Jan 1, 2008 – Dec 31, 2008
-
- Collected
- May 12, 2008
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- 080513-070NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2008 – Dec 31, 2008
-
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
Routine (10).