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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

MS0070016 , Poplar Springs W/A #1

22 of the 57 analytes this system has been tested for have been detected at least once, across 246 samples on record.

The other 35 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 246 samples on record, detections range from December 7, 1993 to August 11, 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 Poplar Springs W/A #1, 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 72 of 87 results Dec 7, 1993 Sep 19, 2023
Lead 1030 Inorganic Chemical 67 of 87 results Dec 7, 1993 Sep 19, 2023
Barium 1010 Inorganic Chemical 20 of 20 results Jul 23, 2002 Jan 15, 2025
Fluoride 1025 Inorganic Chemical 19 of 20 results Jul 23, 2002 Jan 15, 2025
Arsenic 1005 Inorganic Chemical 18 of 20 results Dec 12, 2005 Jan 15, 2025
Selenium 1045 Inorganic Chemical 16 of 20 results Jul 23, 2002 May 3, 2022
Chromium 1020 Inorganic Chemical 15 of 20 results Jul 23, 2002 Jan 15, 2025
Nitrate-Nitrite 1038 Inorganic Chemical 13 of 46 results May 5, 2008 Jan 9, 2024
Nickel 1036 Inorganic Chemical 12 of 20 results Jul 23, 2002 Jan 15, 2025
Nitrate 1040 Inorganic Chemical 12 of 46 results Aug 24, 2005 Jan 9, 2024
Gross Alpha, Incl. Radon & U 4002 Radionuclide 10 of 10 results Dec 13, 2011 Jul 11, 2012
TTHM 2950 Organic Chemical 7 of 24 results Jun 27, 2007 Aug 11, 2025
Sodium 1052 Inorganic Chemical 6 of 6 results Oct 1, 2019 Oct 21, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 6 of 23 results Jun 27, 2007 Mar 6, 2024
Nitrite 1041 Inorganic Chemical 5 of 46 results Jan 18, 2011 Jan 17, 2023
Bromoform 2942 Organic Chemical 3 of 19 results Jul 10, 2019 Aug 11, 2025
Dibromoacetic Acid 2454 Organic Chemical 2 of 17 results Aug 13, 2008 Jul 13, 2020
Thallium, Total 1085 Inorganic Chemical 2 of 20 results Apr 13, 2020 Apr 13, 2020
Cadmium 1015 Inorganic Chemical 2 of 20 results Dec 12, 2005 Dec 12, 2005
Cyanide 1024 Inorganic Chemical 1 of 19 results Apr 24, 2018 Apr 24, 2018
Dichloroacetic Acid 2451 Organic Chemical 1 of 17 results Aug 13, 2014 Aug 13, 2014
Sulfate 1055 Inorganic Chemical 1 of 2 results Jul 23, 2002 Jul 23, 2002

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 151–160 of 246 samples, newest first — collected April 9, 2008 to January 18, 2011. The summary above covers all 246.

53 results from the 10 samples listed here: 13 detected, 40 not detected. Across the whole record it is 310 of 1,113. 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 Poplar Springs W/A #1, every result from 151 to 160 of 246 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
Jan 18, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110119-053NI
Laboratory
MSDH Lab
0.55 mg/l , sample collected Jan 18, 2011, sampling point TF101 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 18, 2011, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
0.5 mg/l , sample collected Jan 18, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
May 19, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100520-025NI
Laboratory
MSDH Lab
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
Collected
May 19, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100520-024NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected May 19, 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 19, 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 19, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Mar 11, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
090312-029NI
Laboratory
MSDH Lab
0.41 mg/l , sample collected Mar 11, 2009, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
0.41 mg/l , sample collected Mar 11, 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 11, 2009, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Mar 11, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
090312-028NI
Laboratory
MSDH Lab
0.42 mg/l , sample collected Mar 11, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
0.42 mg/l , sample collected Mar 11, 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 11, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Aug 13, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080814-006TH
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 13, 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 Aug 13, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Aug 13, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080814-006HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Aug 13, 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 Aug 13, 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 Aug 13, 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 Aug 13, 2008, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Aug 13, 2008, 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 Aug 13, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
May 5, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080506-082NI
Laboratory
MSDH Lab
0.3 mg/l , sample collected May 5, 2008, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
0.3 mg/l , sample collected May 5, 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 5, 2008, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
May 5, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080506-062NI
Laboratory
MSDH Lab
0.31 mg/l , sample collected May 5, 2008, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
0.31 mg/l , sample collected May 5, 2008, sampling point TF101 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 5, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
Apr 9, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080410-014VO
Laboratory
MSDH Lab
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Dichloromethane 2964 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Benzene 2990 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Toluene 2991 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010
Not detected below 0.0005 mg/l Method Detection Limit , sample collected Apr 9, 2008, sampling point TF102 Styrene 2996 EPA method 524.2 Jan 1, 2005 – Dec 31, 2010

Routine (10).