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
MS0170005 , Days Water Association
25 of the 63 analytes this system has been tested for have been detected at least once, across 351 samples on record.
The other 38 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 351 samples on record, detections range from August 18, 1993 to August 24, 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 | 171 of 202 results | Aug 18, 1993 | Aug 24, 2025 |
| Lead 1030 | Inorganic Chemical | 94 of 202 results | Aug 18, 1993 | Aug 24, 2025 |
| Nitrate-Nitrite 1038 | Inorganic Chemical | 23 of 25 results | May 5, 2004 | Jan 29, 2025 |
| Nitrate 1040 | Inorganic Chemical | 23 of 25 results | May 5, 2004 | Jan 29, 2025 |
| Barium 1010 | Inorganic Chemical | 19 of 19 results | Apr 23, 2002 | Feb 6, 2024 |
| Nickel 1036 | Inorganic Chemical | 17 of 19 results | Apr 23, 2002 | Feb 6, 2024 |
| Fluoride 1025 | Inorganic Chemical | 16 of 20 results | Apr 23, 2002 | Feb 6, 2024 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 12 of 31 results | Jul 9, 2007 | Oct 8, 2024 |
| Chromium 1020 | Inorganic Chemical | 11 of 19 results | Apr 23, 2002 | Feb 6, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 5 of 5 results | Dec 13, 2011 | Jul 10, 2012 |
| TTHM 2950 | Organic Chemical | 4 of 28 results | May 17, 2004 | Aug 9, 2023 |
| Sodium 1052 | Inorganic Chemical | 3 of 3 results | Sep 23, 2019 | Sep 14, 2021 |
| Dichloroacetic Acid 2451 | Organic Chemical | 3 of 6 results | Sep 15, 2008 | Jul 29, 2020 |
| Selenium 1045 | Inorganic Chemical | 3 of 19 results | Apr 23, 2002 | Jan 23, 2006 |
| Sulfate 1055 | Inorganic Chemical | 2 of 4 results | Sep 10, 2003 | Sep 14, 2021 |
| Cadmium 1015 | Inorganic Chemical | 2 of 19 results | Feb 28, 2005 | Jan 23, 2006 |
| Calcium 1016 | Inorganic Chemical | 1 of 1 result | Sep 14, 2021 | Sep 14, 2021 |
| Chloride 1017 | Inorganic Chemical | 1 of 1 result | Sep 14, 2021 | Sep 14, 2021 |
| Conductivity @ 25 C Umhos/CM 1064 | Water Quality | 1 of 1 result | Sep 14, 2021 | Sep 14, 2021 |
| Alkalinity, Total 1927 | Water Quality | 1 of 1 result | Sep 14, 2021 | Sep 14, 2021 |
| Monochloroacetic Acid 2450 | Organic Chemical | 1 of 6 results | Aug 1, 2018 | Aug 1, 2018 |
| Trichloroacetic Acid 2452 | Organic Chemical | 1 of 6 results | Sep 15, 2008 | Sep 15, 2008 |
| Chloroform 2941 | Organic Chemical | 1 of 6 results | Sep 15, 2008 | Sep 15, 2008 |
| Bromodichloromethane 2943 | Organic Chemical | 1 of 6 results | Sep 15, 2008 | Sep 15, 2008 |
| Arsenic 1005 | Inorganic Chemical | 1 of 19 results | Apr 2, 2008 | Apr 2, 2008 |
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 241–250 of 351 samples, newest first — collected July 23, 2007 to July 31, 2007. The summary above covers all 351.
23 results from the 10 samples listed here: 13 detected, 10 not detected. Across the whole record it is 417 of 1,154. 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 |
|---|---|---|
|
||
| 0.0052 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 |
|
||
| 0.0903 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 |
|
||
| 0.0053 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 |
|
||
| 0.0052 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 |
|
||
| 0.0186 mg/l , sample collected Jul 31, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0014 mg/l , sample collected Jul 31, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0082 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 |
|
||
| 0.0145 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 |
|
||
| 0.0059 mg/l , sample collected Jul 31, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0005 mg/l , sample collected Jul 31, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.006 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 |
|
||
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Jul 23, 2007, 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 Jul 23, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2005 – Dec 31, 2007 |
-
- Collected
- Jul 31, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070801-321PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0052 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
- 070801-317PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0903 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
- 070801-323PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0053 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
- 070801-318PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0052 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
- 070801-338PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0186 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0014 mg/l
-
- Collected
- Jul 31, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070801-316PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0082 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
- 070801-331PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0145 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 31, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070801-345PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0059 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0005 mg/l
-
- Collected
- Jul 31, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070801-306PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.006 mg/l
-
Lead 1030 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Jul 23, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070724-013TH
- 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, 2005 – Dec 31, 2007
Routine (10).