Chemical and radiological sample results

MS0500008 , City of Philadelphia

25 of the 60 analytes this system has been tested for have been detected at least once, across 255 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 255 samples on record, detections range from October 8, 2003 to November 17, 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 City of Philadelphia, 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	159 of 160 results	Jun 15, 2004	Jun 27, 2025
Lead 1030	Inorganic Chemical	29 of 160 results	Jun 15, 2004	Jun 24, 2025
TTHM 2950	Organic Chemical	16 of 19 results	Jul 19, 2004	Aug 19, 2025
Chloroform 2941	Organic Chemical	11 of 14 results	Aug 27, 2007	Aug 19, 2025
Bromodichloromethane 2943	Organic Chemical	11 of 14 results	Aug 27, 2007	Aug 19, 2025
Dibromochloromethane 2944	Organic Chemical	11 of 14 results	Aug 27, 2007	Aug 19, 2025
Barium 1010	Inorganic Chemical	10 of 10 results	Oct 8, 2003	Mar 18, 2025
Fluoride 1025	Inorganic Chemical	9 of 10 results	Oct 8, 2003	Oct 3, 2022
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	8 of 19 results	Jun 14, 2010	Nov 12, 2024
Dichloroacetic Acid 2451	Organic Chemical	6 of 14 results	Jul 11, 2016	Nov 17, 2025
Nickel 1036	Inorganic Chemical	6 of 10 results	Mar 8, 2004	Mar 18, 2025
Gross Alpha, Incl. Radon & U 4002	Radionuclide	5 of 5 results	Mar 14, 2012	Oct 9, 2012
Bromoform 2942	Organic Chemical	4 of 14 results	Jun 10, 2024	Aug 19, 2025
Sodium 1052	Inorganic Chemical	3 of 3 results	Sep 13, 2019	Feb 24, 2025
Chromium 1020	Inorganic Chemical	3 of 10 results	Apr 4, 2005	May 7, 2019
Selenium 1045	Inorganic Chemical	2 of 10 results	Apr 4, 2005	Apr 29, 2013
Gross Alpha, Excl. Radon & U 4000	Radionuclide	2 of 2 results	Sep 17, 2009	Mar 5, 2010
Combined Radium (-226 & -228) 4010	Radionuclide	2 of 7 results	Sep 17, 2009	Mar 5, 2010
Radium-226 4020	Radionuclide	2 of 7 results	Sep 17, 2009	Mar 5, 2010
Radium-228 4030	Radionuclide	2 of 7 results	Sep 17, 2009	Mar 5, 2010
Gross Beta Particle Activity 4100	Radionuclide	2 of 2 results	Sep 17, 2009	Mar 5, 2010
Gross Alpha Particle Activity 4109	Radionuclide	2 of 2 results	Sep 17, 2009	Mar 5, 2010
Nitrate 1040	Inorganic Chemical	2 of 22 results	May 24, 2004	Jul 17, 2006
Sulfate 1055	Inorganic Chemical	2 of 2 results	Oct 8, 2003	Mar 8, 2004
Arsenic 1005	Inorganic Chemical	1 of 10 results	Apr 29, 2013	Apr 29, 2013

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 61–70 of 255 samples, newest first — collected September 28, 2021 to August 8, 2022. The summary above covers all 255.

33 results from the 10 samples listed here: 5 detected, 28 not detected. Across the whole record it is 310 of 863. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 1 sampling point below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for City of Philadelphia, every result from 61 to 70 of 255 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 Aug 8, 2022 09:00 Sampling point LC0034 Location withheld Sample type Routine Lab sample PB-220815-016 Laboratory MSDH Lab
0.0105 mg/l , sample collected Aug 8, 2022 09:00, sampling point LC0034	Copper, Free 1022 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 8, 2022 09:00, sampling point LC0034	Lead 1030 EPA method 200.8	Jan 1, 2020 – Dec 31, 2022
Collected Jul 26, 2022 13:15 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample VO-220727-024 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Xylenes, Total 2955 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Dichloromethane 2964 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	O-Dichlorobenzene 2968 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	P-Dichlorobenzene 2969 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Vinyl Chloride 2976 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,1-Dichloroethylene 2977 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,2-Dichloroethane 2980 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,1,1-Trichloroethane 2981 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Carbon Tetrachloride 2982 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,2-Dichloropropane 2983 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Trichloroethylene 2984 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	1,1,2-Trichloroethane 2985 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Tetrachloroethylene 2987 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Chlorobenzene 2989 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Benzene 2990 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Toluene 2991 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Ethylbenzene 2992 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2022 13:15, sampling point TF080	Styrene 2996 EPA method 524.2	Jan 1, 2017 – Dec 31, 2022
Collected Jun 8, 2022 09:40 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-220609-013 Laboratory MSDH Lab
2.83 ug/l , sample collected Jun 8, 2022 09:40, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Not recorded
Collected Jun 8, 2022 09:40 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-220609-013 Laboratory MSDH Lab
5.88 ug/l , sample collected Jun 8, 2022 09:40, sampling point MRT000	TTHM 2950 EPA method 524.2	Not recorded
Collected May 18, 2022 13:30 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample CN-220519-038 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 18, 2022 13:30, sampling point TF080	Cyanide 1024 EPA method QC10204001X	Jan 1, 2020 – Dec 31, 2022
Collected Mar 1, 2022 12:25 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NA-220302-033 Laboratory MSDH Lab
16.3 mg/l , sample collected Mar 1, 2022 12:25, sampling point TF080	Sodium 1052 EPA method 200.7	Not recorded
Collected Mar 1, 2022 13:15 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample NI-220302-033 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF080	Nitrate-Nitrite 1038 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF080	Nitrate 1040 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Mar 1, 2022 13:15, sampling point TF080	Nitrite 1041 EPA method QC10107041C	Jan 1, 2022 – Dec 31, 2022
Collected Oct 12, 2021 13:30 Sampling point TF080 Treatment Plant T080 Sample type Routine Lab sample RU-211013-107 Laboratory MSDH Lab
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Oct 12, 2021 13:30, sampling point TF080	Combined Uranium 4006 EPA method 200.8	Jan 1, 2013 – Dec 31, 2021
Collected Sep 28, 2021 10:00 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample HA-210929-012 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 28, 2021 10:00, sampling point MRT000	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2021 – Dec 31, 2021
Collected Sep 28, 2021 10:00 Sampling point MRT000 Max. Res. Time Sample type Routine Lab sample TH-210929-012 Laboratory MSDH Lab
6.79 ug/l , sample collected Sep 28, 2021 10:00, sampling point MRT000	TTHM 2950 EPA method 524.2	Jan 1, 2021 – Dec 31, 2021

Collected
Aug 8, 2022 09:00

Sampling point
LC0034 Location withheld

Sample type
Routine

Lab sample
PB-220815-016

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2022
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0105 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 26, 2022 13:15

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
VO-220727-024

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2017 – Dec 31, 2022
- 1,2,4-Trichlorobenzene 2378 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Cis-1,2-Dichloroethylene 2380 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Xylenes, Total 2955 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Dichloromethane 2964 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- O-Dichlorobenzene 2968 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- P-Dichlorobenzene 2969 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Vinyl Chloride 2976 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1-Dichloroethylene 2977 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trans-1,2-Dichloroethylene 2979 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloroethane 2980 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,1-Trichloroethane 2981 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Carbon Tetrachloride 2982 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,2-Dichloropropane 2983 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Trichloroethylene 2984 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- 1,1,2-Trichloroethane 2985 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Tetrachloroethylene 2987 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Chlorobenzene 2989 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Benzene 2990 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Toluene 2991 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Ethylbenzene 2992 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
- Styrene 2996 EPA method 524.2
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jun 8, 2022 09:40

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-220609-013

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  2.83 ug/l
Collected
Jun 8, 2022 09:40

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-220609-013

Laboratory
MSDH Lab

Monitoring period
Not recorded
- TTHM 2950 EPA method 524.2
  
  Result
  5.88 ug/l
Collected
May 18, 2022 13:30

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
CN-220519-038

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2020 – Dec 31, 2022
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Mar 1, 2022 12:25

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NA-220302-033

Laboratory
MSDH Lab

Monitoring period
Not recorded
- Sodium 1052 EPA method 200.7
  
  Result
  16.3 mg/l
Collected
Mar 1, 2022 13:15

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
NI-220302-033

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2022 – Dec 31, 2022
- Nitrate-Nitrite 1038 EPA method QC10107041C
  
  Result
  Not detected below 0.1 mg/l Minimum Reporting Level
- Nitrate 1040 EPA method QC10107041C
  
  Result
  Not detected below 0.08 mg/l Minimum Reporting Level
- Nitrite 1041 EPA method QC10107041C
  
  Result
  Not detected below 0.02 mg/l Minimum Reporting Level
Collected
Oct 12, 2021 13:30

Sampling point
TF080 Treatment Plant T080

Sample type
Routine

Lab sample
RU-211013-107

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2013 – Dec 31, 2021
- Combined Uranium 4006 EPA method 200.8
  
  Result
  Not detected below 0.0005 mg/l Minimum Reporting Level
Collected
Sep 28, 2021 10:00

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
HA-210929-012

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Sep 28, 2021 10:00

Sampling point
MRT000 Max. Res. Time

Sample type
Routine

Lab sample
TH-210929-012

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2021
- TTHM 2950 EPA method 524.2
  
  Result
  6.79 ug/l

Routine (10).