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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

MS0360068 , Wellsgate

19 of the 61 analytes this system has been tested for have been detected at least once, across 253 samples on record.

The other 42 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 253 samples on record, detections range from October 27, 2003 to July 6, 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 Wellsgate, 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 150 of 150 results Sep 15, 2004 Sep 17, 2025
Lead 1030 Inorganic Chemical 79 of 150 results Sep 15, 2004 Sep 17, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 22 of 22 results May 19, 2004 Jul 6, 2026
Nitrate 1040 Inorganic Chemical 22 of 22 results May 19, 2004 Jul 6, 2026
Barium 1010 Inorganic Chemical 9 of 9 results Oct 27, 2003 Feb 27, 2025
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 5 of 16 results Aug 16, 2007 May 9, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
Combined Radium (-226 & -228) 4010 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
Radium-226 4020 Radionuclide 5 of 5 results Dec 15, 2011 Jul 20, 2012
TTHM 2950 Organic Chemical 4 of 16 results Sep 6, 2007 Feb 17, 2026
Chloroform 2941 Organic Chemical 3 of 11 results Sep 6, 2007 Feb 17, 2026
Sodium 1052 Inorganic Chemical 3 of 3 results Oct 1, 2021 Feb 25, 2025
Calcium 1016 Inorganic Chemical 1 of 1 result Oct 1, 2021 Oct 1, 2021
Chloride 1017 Inorganic Chemical 1 of 1 result Oct 1, 2021 Oct 1, 2021
Conductivity @ 25 C Umhos/CM 1064 Water Quality 1 of 1 result Oct 1, 2021 Oct 1, 2021
Dichloroacetic Acid 2451 Organic Chemical 1 of 10 results Aug 22, 2019 Aug 22, 2019
Trichloroacetic Acid 2452 Organic Chemical 1 of 10 results Aug 22, 2019 Aug 22, 2019
Bromodichloromethane 2943 Organic Chemical 1 of 11 results Aug 22, 2019 Aug 22, 2019
Nickel 1036 Inorganic Chemical 1 of 9 results Mar 23, 2005 Mar 23, 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 161–170 of 253 samples, newest first — collected March 31, 2009 to October 14, 2009. The summary above covers all 253.

47 results from the 10 samples listed here: 10 detected, 37 not detected. Across the whole record it is 319 of 1,082. 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 Wellsgate, every result from 161 to 170 of 253 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
Oct 14, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091019-010PB
Laboratory
MSDH Lab
0.0064 mg/l , sample collected Oct 14, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 14, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091019-008PB
Laboratory
MSDH Lab
0.0118 mg/l , sample collected Oct 14, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Oct 14, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
091019-002PB
Laboratory
MSDH Lab
0.0055 mg/l , sample collected Oct 14, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 14, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jul 1, 2009 – Dec 31, 2009
Collected
Sep 23, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090924-021TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2009, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2009, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 2009, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 23, 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 Sep 23, 2009, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 23, 2009
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
090924-021HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 23, 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 Sep 23, 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 Sep 23, 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 Sep 23, 2009, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Sep 23, 2009, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 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 Sep 23, 2009, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
Jul 23, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090724-012VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Dichloromethane 2964 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Benzene 2990 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Toluene 2991 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Jul 23, 2009, sampling point TF080 Styrene 2996 EPA method 524.2 Jan 1, 2009 – Dec 31, 2009
Collected
Apr 29, 2009
Sampling point
TF080 Treatment Plant T080
Sample type
Routine
Lab sample
090430-061NI
Laboratory
MSDH Lab
0.56 mg/l , sample collected Apr 29, 2009, sampling point TF080 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
0.56 mg/l , sample collected Apr 29, 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 Apr 29, 2009, sampling point TF080 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Apr 2, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090403-021PB
Laboratory
MSDH Lab
0.0029 mg/l , sample collected Apr 2, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Apr 2, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009
Collected
Mar 31, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090402-035PB
Laboratory
MSDH Lab
0.0036 mg/l , sample collected Mar 31, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 31, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009
Collected
Mar 31, 2009
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
090402-029PB
Laboratory
MSDH Lab
0.0051 mg/l , sample collected Mar 31, 2009, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 31, 2009, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2009 – Jun 30, 2009

Routine (10).