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
MS0200006 , Rocky Creek Utilities, Inc
20 of the 58 analytes this system has been tested for have been detected at least once, across 352 samples on record.
The other 38 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 352 samples on record, detections range from October 5, 1993 to February 11, 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.
| Analyte | Kind | Detected in | First detected | Last detected |
|---|---|---|---|---|
| Copper, Free 1022 | Inorganic Chemical | 106 of 140 results | Oct 5, 1993 | Jun 10, 2025 |
| Lead 1030 | Inorganic Chemical | 100 of 140 results | Oct 5, 1993 | Jun 10, 2025 |
| Barium 1010 | Inorganic Chemical | 28 of 28 results | May 21, 2002 | Feb 3, 2025 |
| Fluoride 1025 | Inorganic Chemical | 28 of 28 results | May 21, 2002 | Feb 3, 2025 |
| Total Haloacetic Acids (Haa5) 2456 | Organic Chemical | 24 of 25 results | Aug 2, 2007 | Feb 11, 2026 |
| TTHM 2950 | Organic Chemical | 24 of 24 results | May 26, 2004 | Feb 11, 2026 |
| Dichloroacetic Acid 2451 | Organic Chemical | 18 of 18 results | Sep 16, 2008 | Feb 11, 2026 |
| Trichloroacetic Acid 2452 | Organic Chemical | 18 of 18 results | Sep 16, 2008 | Feb 11, 2026 |
| Chloroform 2941 | Organic Chemical | 18 of 18 results | Aug 2, 2007 | Feb 11, 2026 |
| Bromodichloromethane 2943 | Organic Chemical | 17 of 18 results | Aug 2, 2007 | Feb 11, 2026 |
| Dibromochloromethane 2944 | Organic Chemical | 16 of 18 results | Aug 2, 2007 | Feb 11, 2026 |
| Gross Alpha, Incl. Radon & U 4002 | Radionuclide | 15 of 15 results | Mar 7, 2012 | Oct 2, 2012 |
| Chromium 1020 | Inorganic Chemical | 10 of 28 results | May 21, 2002 | Feb 3, 2025 |
| Sodium 1052 | Inorganic Chemical | 9 of 9 results | Sep 17, 2019 | Jan 29, 2024 |
| Nickel 1036 | Inorganic Chemical | 7 of 28 results | Apr 2, 2008 | Feb 3, 2025 |
| Sulfate 1055 | Inorganic Chemical | 4 of 4 results | May 21, 2002 | Feb 4, 2004 |
| Dibromoacetic Acid 2454 | Organic Chemical | 3 of 18 results | Jul 18, 2012 | Jun 17, 2024 |
| Monobromoacetic Acid 2453 | Organic Chemical | 2 of 18 results | Jul 29, 2019 | Sep 1, 2020 |
| Monochloroacetic Acid 2450 | Organic Chemical | 2 of 18 results | Jul 23, 2018 | Jul 29, 2019 |
| Selenium 1045 | Inorganic Chemical | 1 of 28 results | Feb 28, 2005 | Feb 28, 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 61–70 of 352 samples, newest first — collected May 17, 2021 to March 1, 2022. The summary above covers all 352.
36 results from the 10 samples listed here: 4 detected, 32 not detected. Across the whole record it is 450 of 1,614. 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 |
|---|---|---|
|
||
| 14.9 ug/l , sample collected Mar 1, 2022 12:01, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 19.4 ug/l , sample collected Mar 1, 2022 12:10, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Jan 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:05, sampling point TF103 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:05, sampling point TF103 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:05, sampling point TF103 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:33, sampling point TF102 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:33, sampling point TF102 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 12:33, sampling point TF102 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
|
||
| Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 13:13, sampling point TF101 | Nitrate-Nitrite 1038 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 13:13, sampling point TF101 | Nitrate 1040 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
| Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 18, 2022 13:13, sampling point TF101 | Nitrite 1041 EPA method QC10107041C | Jan 1, 2022 – Dec 31, 2022 |
|
||
| 13.9 ug/l , sample collected Sep 13, 2021 12:30, sampling point MRT000 | Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 | Not recorded |
|
||
| 23.2 ug/l , sample collected Sep 13, 2021 12:32, sampling point MRT000 | TTHM 2950 EPA method 524.2 | Not recorded |
|
||
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,2,4-Trichlorobenzene 2378 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Cis-1,2-Dichloroethylene 2380 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Xylenes, Total 2955 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Dichloromethane 2964 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | O-Dichlorobenzene 2968 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | P-Dichlorobenzene 2969 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Vinyl Chloride 2976 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,1-Dichloroethylene 2977 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Trans-1,2-Dichloroethylene 2979 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,2-Dichloroethane 2980 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,1,1-Trichloroethane 2981 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Carbon Tetrachloride 2982 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,2-Dichloropropane 2983 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Trichloroethylene 2984 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | 1,1,2-Trichloroethane 2985 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Tetrachloroethylene 2987 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Chlorobenzene 2989 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Benzene 2990 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Toluene 2991 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Ethylbenzene 2992 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
| Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Aug 11, 2021 12:05, sampling point TF103 | Styrene 2996 EPA method 524.2 | Jan 1, 2016 – Dec 31, 2021 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2021 12:31, sampling point TF103 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
|
||
| Not detected below 0.015 mg/l Minimum Reporting Level , sample collected May 17, 2021 12:19, sampling point TF101 | Cyanide 1024 EPA method QC10204001X | Jan 1, 2020 – Dec 31, 2022 |
-
- Collected
- Mar 1, 2022 12:01
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-220302-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 14.9 ug/l
-
- Collected
- Mar 1, 2022 12:10
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-220302-026
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2022 – Dec 31, 2022
-
TTHM 2950 EPA method 524.2
- Result
- 19.4 ug/l
-
- Collected
- Jan 18, 2022 12:05
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- NI-220119-046
- 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
- Jan 18, 2022 12:33
- Sampling point
- TF102 Treatment Plant T102
- Sample type
- Routine
- Lab sample
- NI-220119-045
- 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
- Jan 18, 2022 13:13
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- NI-220119-044
- 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
- Sep 13, 2021 12:30
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- HA-210914-012
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
- Result
- 13.9 ug/l
-
- Collected
- Sep 13, 2021 12:32
- Sampling point
- MRT000 Max. Res. Time
- Sample type
- Routine
- Lab sample
- TH-210914-012
- Laboratory
- MSDH Lab
- Monitoring period
- Not recorded
-
TTHM 2950 EPA method 524.2
- Result
- 23.2 ug/l
-
- Collected
- Aug 11, 2021 12:05
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- VO-210812-003
- Laboratory
- MSDH Lab
- Monitoring period
- Jan 1, 2016 – Dec 31, 2021
-
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
- May 17, 2021 12:31
- Sampling point
- TF103
- Sample type
- Routine
- Lab sample
- CN-210518-018
- 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
- May 17, 2021 12:19
- Sampling point
- TF101 Treatment Plant T101
- Sample type
- Routine
- Lab sample
- CN-210518-017
- 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
Routine (10).