Skip to main content
Alpha

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

MS0260003 , Castalian W/A

10 of the 51 analytes this system has been tested for have been detected at least once, across 113 samples on record.

The other 41 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 113 samples on record, detections range from August 17, 1993 to September 10, 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 Castalian W/A, 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 66 of 84 results Aug 17, 1993 Sep 10, 2025
Lead 1030 Inorganic Chemical 36 of 84 results Aug 17, 1993 Sep 10, 2025
TTHM 2950 Organic Chemical 6 of 9 results Jun 4, 2007 Oct 17, 2022
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 4 of 9 results Jun 4, 2007 Oct 17, 2022
Chloroform 2941 Organic Chemical 3 of 6 results Jul 1, 2009 Aug 17, 2017
Dichloroacetic Acid 2451 Organic Chemical 2 of 5 results Jul 1, 2009 Jun 28, 2011
Barium 1010 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Sulfate 1055 Inorganic Chemical 2 of 2 results Sep 17, 2003 Feb 9, 2004
Monobromoacetic Acid 2453 Organic Chemical 1 of 5 results Jul 1, 2009 Jul 1, 2009
Fluoride 1025 Inorganic Chemical 1 of 2 results Sep 17, 2003 Sep 17, 2003

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 41–50 of 113 samples, newest first — collected June 22, 2010 to June 4, 2013. The summary above covers all 113.

26 results from the 10 samples listed here: 16 detected, 10 not detected. Across the whole record it is 123 of 350. 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 Castalian W/A, every result from 41 to 50 of 113 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
Jun 4, 2013 06:40
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130605-033PB
Laboratory
MSDH Lab
0.0557 mg/l , sample collected Jun 4, 2013 06:40, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0006 mg/l , sample collected Jun 4, 2013 06:40, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 4, 2013 07:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130605-028PB
Laboratory
MSDH Lab
0.0805 mg/l , sample collected Jun 4, 2013 07:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
0.0008 mg/l , sample collected Jun 4, 2013 07:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 4, 2013 05:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130605-027PB
Laboratory
MSDH Lab
0.0879 mg/l , sample collected Jun 4, 2013 05:00, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 4, 2013 05:00, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Jun 4, 2013 06:20
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
130605-026PB
Laboratory
MSDH Lab
0.244 mg/l , sample collected Jun 4, 2013 06:20, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Jun 4, 2013 06:20, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2011 – Dec 31, 2013
Collected
Sep 12, 2012 14:00
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
201209130424
Laboratory
Eurofins Eaton Analytical
Not detected below 0.2 mfl Minimum Reporting Level , sample collected Sep 12, 2012 14:00, sampling point DS000 Asbestos 1094 EPA method 100.2 Jan 1, 2011 – Dec 31, 2019
Collected
Jun 28, 2011 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110629-003HA
Laboratory
MSDH Lab
Not detected below 0.002 mg/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Monochloroacetic Acid 2450 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jun 28, 2011 02:30, sampling point MRT000 Dichloroacetic Acid 2451 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Trichloroacetic Acid 2452 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Monobromoacetic Acid 2453 EPA method 552.2 Not recorded
Not detected below 0.001 mg/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Dibromoacetic Acid 2454 EPA method 552.2 Not recorded
0.001 mg/l , sample collected Jun 28, 2011 02:30, sampling point MRT000 Total Haloacetic Acids (Haa5) 2456 Jan 1, 2010 – Dec 31, 2012
Collected
Jun 28, 2011 02:30
Sampling point
MRT000 Max. Res. Time
Sample type
Routine
Lab sample
110629-003TH
Laboratory
MSDH Lab
1.08 ug/l , sample collected Jun 28, 2011 02:30, sampling point MRT000 Chloroform 2941 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Bromoform 2942 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Bromodichloromethane 2943 EPA method 524.2 Not recorded
Not detected below 1 ug/l Minimum Reporting Level , sample collected Jun 28, 2011 02:30, sampling point MRT000 Dibromochloromethane 2944 EPA method 524.2 Not recorded
1.08 ug/l , sample collected Jun 28, 2011 02:30, sampling point MRT000 TTHM 2950 EPA method 524.2 Jan 1, 2010 – Dec 31, 2012
Collected
Jun 22, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100624-010PB
Laboratory
MSDH Lab
0.2304 mg/l , sample collected Jun 22, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0011 mg/l , sample collected Jun 22, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 22, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100624-005PB
Laboratory
MSDH Lab
0.441 mg/l , sample collected Jun 22, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0005 mg/l , sample collected Jun 22, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
Collected
Jun 22, 2010
Sampling point
DS000 Distribution
Sample type
Routine
Lab sample
100624-004PB
Laboratory
MSDH Lab
0.0851 mg/l , sample collected Jun 22, 2010, sampling point DS000 Copper, Free 1022 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010
0.0008 mg/l , sample collected Jun 22, 2010, sampling point DS000 Lead 1030 EPA method 200.8 Jan 1, 2008 – Dec 31, 2010

Routine (10).