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 201–210 of 252 samples, newest first — collected July 11, 2007 to February 26, 2008. The summary above covers all 252.
31 results from the 10 samples listed here: 24 detected, 7 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 |
|---|---|---|
|
||
| 111 ug/l , sample collected Feb 26, 2008, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 26, 2008, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| 15.9 ug/l , sample collected Feb 26, 2008, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 1.95 ug/l , sample collected Feb 26, 2008, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 128.85 ug/l , sample collected Feb 26, 2008, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2008 – Mar 31, 2008 |
|
||
| 0.003 mg/l , sample collected Feb 26, 2008, sampling point MRT000 | Monochloroacetic Acid 2450 EPA method 552.2 | Not recorded |
| 0.038 mg/l , sample collected Feb 26, 2008, sampling point MRT000 | Dichloroacetic Acid 2451 EPA method 552.2 | Not recorded |
| 0.049 mg/l , sample collected Feb 26, 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 Feb 26, 2008, sampling point MRT000 | Monobromoacetic Acid 2453 EPA method 552.2 | Not recorded |
| Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Feb 26, 2008, sampling point MRT000 | Dibromoacetic Acid 2454 EPA method 552.2 | Not recorded |
| 0.09 mg/l , sample collected Feb 26, 2008, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 | Jan 1, 2008 – Mar 31, 2008 |
|
||
| 0.0065 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 16, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Oct 1, 2007 – Dec 31, 2007 |
|
||
| 6.95 ug/l , sample collected Oct 16, 2007, sampling point MRT000 | Chloroform 2941 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 16, 2007, sampling point MRT000 | Bromoform 2942 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 16, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 16, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 6.95 ug/l , sample collected Oct 16, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Oct 1, 2007 – Dec 31, 2007 |
|
||
| 0.0086 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 Sep 25, 2007, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jul 1, 2007 – Sep 30, 2007 |
|
||
| 115 ug/l , 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 |
| 16.2 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | Bromodichloromethane 2943 EPA method 524.2 | Not recorded |
| 2.01 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | Dibromochloromethane 2944 EPA method 524.2 | Not recorded |
| 133.21 ug/l , sample collected Jul 23, 2007, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jul 1, 2007 – Sep 30, 2007 |
|
||
| 0.0328 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0013 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0101 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0006 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.8674 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0013 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
|
||
| 0.0269 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Copper, Free 1022 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
| 0.0012 mg/l , sample collected Jul 11, 2007, sampling point DS000 | Lead 1030 EPA method 200.8 | Jan 1, 2006 – Dec 31, 2008 |
-
- Collected
- Feb 26, 2008
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 080227-007TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 111 ug/l
- 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
- 15.9 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 1.95 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 128.85 ug/l
- Monitoring period
- Jan 1, 2008 – Mar 31, 2008
-
- Collected
- Feb 26, 2008
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 080227-007HA
- Laboratory
- MSDH Lab
-
Monochloroacetic Acid 2450 EPA method 552.2
- Result
- 0.003 mg/l
- Monitoring period
- Not recorded
-
Dichloroacetic Acid 2451 EPA method 552.2
- Result
- 0.038 mg/l
- Monitoring period
- Not recorded
-
Trichloroacetic Acid 2452 EPA method 552.2
- Result
- 0.049 mg/l
- Monitoring period
- Not recorded
-
Monobromoacetic Acid 2453 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Dibromoacetic Acid 2454 EPA method 552.2
- Result
- Not detected below 0.001 mg/l Minimum Reporting Level
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456
- Result
- 0.09 mg/l
- Monitoring period
- Jan 1, 2008 – Mar 31, 2008
-
- Collected
- Oct 16, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 071017-001HA
- Laboratory
- MSDH Lab
- Monitoring period
- Oct 1, 2007 – Dec 31, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0065 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 16, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 071017-001TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 6.95 ug/l
- 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
- 6.95 ug/l
- Monitoring period
- Oct 1, 2007 – Dec 31, 2007
-
- Collected
- Sep 25, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070926-018HA
- Laboratory
- MSDH Lab
- Monitoring period
- Jul 1, 2007 – Sep 30, 2007
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 0.0086 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
- Jul 23, 2007
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- 070724-006TH
- Laboratory
- MSDH Lab
-
Chloroform 2941 EPA method 524.2
- Result
- 115 ug/l
- 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
- 16.2 ug/l
- Monitoring period
- Not recorded
-
Dibromochloromethane 2944 EPA method 524.2
- Result
- 2.01 ug/l
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 133.21 ug/l
- Monitoring period
- Jul 1, 2007 – Sep 30, 2007
-
- Collected
- Jul 11, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070712-066PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0328 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
-
- Collected
- Jul 11, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070712-067PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0101 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0006 mg/l
-
- Collected
- Jul 11, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070712-068PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.8674 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0013 mg/l
-
- Collected
- Jul 11, 2007
- Sampling point
- DS000 Distribution
- Sample type
- Routine
- Lab sample
- 070712-069PB
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2006 – Dec 31, 2008
-
Copper, Free 1022 EPA method 200.8
- Result
- 0.0269 mg/l
-
Lead 1030 EPA method 200.8
- Result
- 0.0012 mg/l
Routine (10).