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
MS0630002 , Town of Cary
38 of the 72 analytes this system has been tested for have been detected at least once, across 252 samples on record.
The other 34 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 252 samples on record, detections range from October 22, 2003 to October 15, 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 |
|---|---|---|---|---|
| TTHM 2950 | Organic Chemical | 52 of 52 results | Sep 21, 2004 | Oct 15, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 50 of 51 results | Sep 21, 2004 | Oct 15, 2025 |
| Chloroform 2941 | Organic Chemical | 29 of 29 results | Aug 17, 2006 | Mar 19, 2024 |
| Copper, Free 1022 | Inorganic Chemical | 26 of 26 results | Jul 10, 2007 | Aug 26, 2020 |
| Lead 1030 | Inorganic Chemical | 24 of 26 results | Jul 10, 2007 | Aug 26, 2020 |
| Dichloroacetic Acid 2451 | Organic Chemical | 23 of 23 results | Feb 26, 2008 | Mar 19, 2024 |
| Bromodichloromethane 2943 | Organic Chemical | 23 of 29 results | Aug 17, 2006 | Mar 19, 2024 |
| Trichloroacetic Acid 2452 | Organic Chemical | 22 of 23 results | Feb 26, 2008 | Mar 19, 2024 |
| Fluoride 1025 | Inorganic Chemical | 18 of 18 results | Oct 22, 2003 | Jul 29, 2025 |
| Barium 1010 | Inorganic Chemical | 15 of 15 results | Oct 22, 2003 | Jul 29, 2025 |
| Nitrite 1041 | Inorganic Chemical | 13 of 34 results | Aug 2, 2006 | Mar 29, 2022 |
| Chromium 1020 | Inorganic Chemical | 10 of 15 results | Oct 22, 2003 | Jul 29, 2025 |
| Dibromochloromethane 2944 | Organic Chemical | 10 of 29 results | Dec 4, 2006 | Mar 19, 2024 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 10 of 10 results | Dec 14, 2011 | Jul 18, 2012 |
| Xylenes, Total 2955 | Organic Chemical | 9 of 32 results | Jun 5, 2012 | Mar 17, 2015 |
| Sodium 1052 | Inorganic Chemical | 8 of 8 results | Apr 21, 2010 | Nov 7, 2023 |
| Nickel 1036 | Inorganic Chemical | 7 of 15 results | Apr 20, 2005 | Sep 4, 2018 |
| Monochloroacetic Acid 2450 | Organic Chemical | 5 of 23 results | Feb 26, 2008 | Mar 19, 2024 |
| Calcium 1016 | Inorganic Chemical | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Chloride 1017 | Inorganic Chemical | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Manganese 1032 | Inorganic Chemical | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Potassium 1042 | Inorganic Chemical | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Sulfate 1055 | Inorganic Chemical | 4 of 5 results | Apr 21, 2010 | Apr 14, 2015 |
| Residue, Total, Filterable 1057 | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Alkalinity, Caco3 Stability 1067 | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Color 1905 | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Hardness, Total (As Caco3) 1915 | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Alkalinity, Total 1927 | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Calculated Sodium NACA | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| PH, Field Result PHFD | Water Quality | 4 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Ethylbenzene 2992 | Organic Chemical | 4 of 32 results | Jun 5, 2012 | Nov 4, 2013 |
| Selenium 1045 | Inorganic Chemical | 3 of 15 results | Mar 24, 2004 | Apr 16, 2008 |
| Arsenic 1005 | Inorganic Chemical | 2 of 15 results | Sep 4, 2018 | Jul 29, 2025 |
| Iron, Field Result FEFD | Inorganic Chemical | 2 of 4 results | Apr 21, 2010 | Apr 14, 2015 |
| Carbon Dioxide 1901 | Water Quality | 2 of 2 results | Apr 21, 2010 | Apr 21, 2010 |
| Styrene 2996 | Organic Chemical | 1 of 32 results | Jun 5, 2012 | Jun 5, 2012 |
| Monobromoacetic Acid 2453 | Organic Chemical | 1 of 23 results | Dec 6, 2011 | Dec 6, 2011 |
| Magnesium 1031 | Inorganic Chemical | 1 of 4 results | Apr 21, 2010 | Apr 21, 2010 |
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 221–230 of 252 samples, newest first — collected October 12, 2005 to August 17, 2006. The summary above covers all 252.
27 results from the 10 samples listed here: 14 detected, 13 not detected. Across the whole record it is 418 of 1,465. 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 |
|---|---|---|
|
||
| 128 ug/l , sample collected Aug 17, 2006, sampling point MRT000 | Chloroform 2941 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 17, 2006, sampling point MRT000 | Bromoform 2942 EPA method 551.1 | Not recorded |
| 11.4 ug/l , sample collected Aug 17, 2006, sampling point MRT000 | Bromodichloromethane 2943 EPA method 551.1 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 17, 2006, sampling point MRT000 | Dibromochloromethane 2944 EPA method 551.1 | Not recorded |
| 139.4 ug/l , sample collected Aug 17, 2006, sampling point MRT000 | TTHM 2950 EPA method 551.1 | Jul 1, 2006 – Sep 30, 2006 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Aug 2, 2006, sampling point TF102 | Nitrate-Nitrite 1038 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Aug 2, 2006, sampling point TF102 | Nitrate 1040 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
| 0.02 mg/l , sample collected Aug 2, 2006, sampling point TF102 | Nitrite 1041 EPA method 353.2 | Jan 1, 2006 – Dec 31, 2006 |
|
||
| 61 ug/l , sample collected May 31, 2006, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Apr 1, 2006 – Jun 30, 2006 |
|
||
| 0.124 mg/l 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 May 22, 2006, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Apr 1, 2006 – Jun 30, 2006 |
|
||
| 0.1041 mg/l 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 Mar 28, 2006, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2006 – Mar 31, 2006 |
|
||
| Not detected below 0.005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Not recorded |
|
||
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Arsenic 1005 EPA method 200.8 | Not recorded |
| 0.013359 mg/l , sample collected Mar 28, 2006, sampling point TF101 | Barium 1010 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Cadmium 1015 EPA method 200.8 | Not recorded |
| 0.001225 mg/l , sample collected Mar 28, 2006, sampling point TF101 | Chromium 1020 EPA method 200.8 | Not recorded |
| 0.651072 mg/l , sample collected Mar 28, 2006, sampling point TF101 | Fluoride 1025 EPA method 380-75WE | Not recorded |
| Not detected below 0.0002 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Mercury 1035 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Nickel 1036 EPA method 200.8 | Not recorded |
| 0.001462 mg/l , sample collected Mar 28, 2006, sampling point TF101 | Selenium 1045 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Antimony, Total 1074 EPA method 200.8 | Not recorded |
| Not detected below 0.0001 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Beryllium, Total 1075 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Thallium, Total 1085 EPA method 200.8 | Not recorded |
| Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Mar 28, 2006, sampling point TF101 | Uranium-238 4009 | Not recorded |
|
||
| 93.3 ug/l , sample collected Mar 2, 2006, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2006 – Mar 31, 2006 |
|
||
| 0.137 mg/l 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 Oct 12, 2005, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2005 – Dec 31, 2005 |
|
||
| 142 ug/l , sample collected Oct 12, 2005, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2005 – Dec 31, 2005 |
-
- Collected
- Aug 17, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060818-002TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 551.1
- Result
- 128 ug/l
- Monitoring period
- Not recorded
-
Bromoform 2942 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Bromodichloromethane 2943 EPA method 551.1
- Result
- 11.4 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 551.1
- Result
- Not detected below 1 ug/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 551.1
- Result
- 139.4 ug/l
- Monitoring period
- Jul 1, 2006 – Sep 30, 2006
-
- Collected
- Aug 2, 2006
- Sampling point
- TF102
- Sample type
- Routine
- Lab sample
- 060803-066NI
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2006
-
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
- 0.02 mg/l
-
- Collected
- May 31, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060602-001TH
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2006 – Jun 30, 2006
-
TTHM 2950 EPA method 524.2
- Result
- 61 ug/l
-
- Collected
- May 22, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060523-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Apr 1, 2006 – Jun 30, 2006
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.124 mg/l 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.
-
- Collected
- Mar 28, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060329-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Mar 31, 2006
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.1041 mg/l 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.
-
- Collected
- Mar 28, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060329-001CN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Cyanide 1024 EPA method QC10204001X
- Result
- Not detected below 0.005 mg/l Minimum Reporting Level
-
- Collected
- Mar 28, 2006
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- 060329-001IN
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Arsenic 1005 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Barium 1010 EPA method 200.8
- Result
- 0.013359 mg/l
-
Cadmium 1015 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Chromium 1020 EPA method 200.8
- Result
- 0.001225 mg/l
-
Fluoride 1025 EPA method 380-75WE
- Result
- 0.651072 mg/l
-
Mercury 1035 EPA method 200.8
- Result
- Not detected below 0.0002 mg/l Minimum Reporting Level
-
Nickel 1036 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Selenium 1045 EPA method 200.8
- Result
- 0.001462 mg/l
-
Antimony, Total 1074 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Beryllium, Total 1075 EPA method 200.8
- Result
- Not detected below 0.0001 mg/l Minimum Reporting Level
-
Thallium, Total 1085 EPA method 200.8
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
Uranium-238 4009
- Result
- Not detected below 0.0005 mg/l Minimum Reporting Level
-
- Collected
- Mar 2, 2006
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 060303-006TH
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Mar 31, 2006
-
TTHM 2950 EPA method 524.2
- Result
- 93.3 ug/l
-
- Collected
- Oct 12, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051013-022HA
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2005 – Dec 31, 2005
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.137 mg/l 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.
-
- Collected
- Oct 12, 2005
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 051013-022TH
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2005 – Dec 31, 2005
-
TTHM 2950 EPA method 524.2
- Result
- 142 ug/l
Routine (10).