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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

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.

Every analyte ever detected for Rocky Creek Utilities, Inc, 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 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 221–230 of 352 samples, newest first — collected May 19, 2008 to February 2, 2011. The summary above covers all 352.

35 results from the 10 samples listed here: 7 detected, 28 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.

Chemical and radiological sample results for Rocky Creek Utilities, Inc, every result from 221 to 230 of 352 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
Feb 2, 2011
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
110203-009NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 2, 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 Feb 2, 2011, sampling point TF101 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 2, 2011, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Feb 2, 2011
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
110203-007NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 2, 2011, sampling point TF102 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 Feb 2, 2011, sampling point TF102 Nitrate 1040 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Feb 2, 2011, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2011 – Dec 31, 2011
Collected
Jun 2, 2010
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
100603-053NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 2, 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 Jun 2, 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 Jun 2, 2010, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Jun 2, 2010
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
100603-048NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Jun 2, 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 Jun 2, 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 Jun 2, 2010, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2010 – Dec 31, 2010
Collected
Oct 21, 2009
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
091022-004NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Oct 21, 2009, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Oct 21, 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 Oct 21, 2009, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Apr 6, 2009
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
090407-016NI
Laboratory
MSDH Lab
Not detected below 0.25 mg/l Minimum Reporting Level , sample collected Apr 6, 2009, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Not detected below 0.2 mg/l Minimum Reporting Level , sample collected Apr 6, 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 Apr 6, 2009, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2009 – Dec 31, 2009
Collected
Sep 16, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080917-008TH
Laboratory
MSDH Lab
29.9 ug/l , sample collected Sep 16, 2008, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
11.9 ug/l , sample collected Sep 16, 2008, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
2.75 ug/l , sample collected Sep 16, 2008, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
44.55 ug/l , sample collected Sep 16, 2008, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2008 – Dec 31, 2010
Collected
Sep 16, 2008
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
080917-002HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Sep 16, 2008, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.009 mg/l , sample collected Sep 16, 2008, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
0.007 mg/l , sample collected Sep 16, 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 Sep 16, 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 Sep 16, 2008, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.01 mg/l , sample collected Sep 16, 2008, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2008 – Dec 31, 2010
Collected
May 19, 2008
Sampling point
TF101 Treatment Plant T101
Sample type
Routine
Lab sample
080520-024NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 19, 2008, sampling point TF101 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 19, 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 19, 2008, sampling point TF101 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Collected
May 19, 2008
Sampling point
TF102 Treatment Plant T102
Sample type
Routine
Lab sample
080520-021NI
Laboratory
MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected May 19, 2008, sampling point TF102 Nitrate-Nitrite 1038 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected May 19, 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 19, 2008, sampling point TF102 Nitrite 1041 EPA method 353.2 Jan 1, 2008 – Dec 31, 2008

Routine (10).