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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

MS0540075 , Aci Building Systems, LLC

10 of the 50 analytes this system has been tested for have been detected at least once, across 147 samples on record.

The other 40 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 147 samples on record, detections range from April 5, 2022 to June 23, 2026. These figures cover the whole record; the list of samples further down is narrowed.

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 Aci Building Systems, LLC, 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 60 of 60 results Apr 5, 2022 Oct 23, 2024
Lead 1030 Inorganic Chemical 27 of 60 results Apr 5, 2022 Apr 10, 2024
Total Haloacetic Acids (Haa5) 2456 Organic Chemical 15 of 21 results Feb 14, 2023 Oct 9, 2024
Nitrate-Nitrite 1038 Inorganic Chemical 12 of 12 results Apr 12, 2022 Jun 23, 2026
Nitrate 1040 Inorganic Chemical 12 of 12 results Apr 12, 2022 Jun 23, 2026
Barium 1010 Inorganic Chemical 7 of 7 results Apr 26, 2022 Apr 8, 2025
Chromium 1020 Inorganic Chemical 7 of 7 results Apr 26, 2022 Apr 8, 2025
Nickel 1036 Inorganic Chemical 7 of 7 results Apr 26, 2022 Apr 8, 2025
Arsenic 1005 Inorganic Chemical 6 of 7 results Apr 26, 2022 Apr 8, 2025
Fluoride 1025 Inorganic Chemical 4 of 7 results Aug 24, 2022 Apr 8, 2025

Showing samples collected between September 25, 2024 and September 25, 2026. That is this page’s default, not a limit on what the agency records.

Show every sample on record

Choose a date range

The most recent samples, result by result

The table below lists 21–30 of 30 samples, newest first — collected October 9, 2024 to October 23, 2024. The summary above covers all 30.

35 results from the 10 samples listed here: 7 detected, 28 not detected. A sample is analysed for many analytes at once, so one sample appears on as many rows as it had results.

We withheld the location of 5 sampling points below. The location on record identifies a private home, and we do not publish those. That is our decision, not the agency’s. The sampling point, its type and every result taken there are published unchanged.

Chemical and radiological sample results for Aci Building Systems, LLC, every result from 21 to 30 of 30 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
Oct 23, 2024 06:19
Sampling point
LC0007 Location withheld
Sample type
Routine
Lab sample
PB-241024-025
Laboratory
MSDH Lab
0.0543 mg/l , sample collected Oct 23, 2024 06:19, sampling point LC0007 Copper, Free 1022 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 23, 2024 06:19, sampling point LC0007 Lead 1030 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Collected
Oct 23, 2024 06:16
Sampling point
LC0006 Location withheld
Sample type
Routine
Lab sample
PB-241024-024
Laboratory
MSDH Lab
0.0145 mg/l , sample collected Oct 23, 2024 06:16, sampling point LC0006 Copper, Free 1022 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 23, 2024 06:16, sampling point LC0006 Lead 1030 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Collected
Oct 23, 2024 06:11
Sampling point
LC0005 Location withheld
Sample type
Routine
Lab sample
PB-241024-023
Laboratory
MSDH Lab
0.0154 mg/l , sample collected Oct 23, 2024 06:11, sampling point LC0005 Copper, Free 1022 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 23, 2024 06:11, sampling point LC0005 Lead 1030 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Collected
Oct 23, 2024 06:07
Sampling point
LC0008 Location withheld
Sample type
Routine
Lab sample
PB-241024-022
Laboratory
MSDH Lab
0.02 mg/l , sample collected Oct 23, 2024 06:07, sampling point LC0008 Copper, Free 1022 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 23, 2024 06:07, sampling point LC0008 Lead 1030 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Collected
Oct 23, 2024 06:00
Sampling point
LC0001 Location withheld
Sample type
Routine
Lab sample
PB-241024-021
Laboratory
MSDH Lab
0.0226 mg/l , sample collected Oct 23, 2024 06:00, sampling point LC0001 Copper, Free 1022 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 23, 2024 06:00, sampling point LC0001 Lead 1030 EPA method 200.8 Jul 1, 2024 – Dec 31, 2024
Collected
Oct 16, 2024 16:00
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
VO-241017-005
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Benzene 2990 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Toluene 2991 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Not recorded
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 16, 2024 16:00, sampling point TF101 Styrene 2996 EPA method 524.2 Not recorded
Collected
Oct 9, 2024 14:15
Sampling point
SM2 BLDG Main Front Breakroom (Bacti Site#4)
Sample type
Routine
Lab sample
TH-241010-004
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 14:15, sampling point SM2 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 9, 2024 14:05
Sampling point
SM1 Wellhouse (Bacti Site#1)
Sample type
Routine
Lab sample
TH-241010-003
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Oct 9, 2024 14:05, sampling point SM1 TTHM 2950 EPA method 524.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 9, 2024 14:20
Sampling point
SM2 BLDG Main Front Breakroom (Bacti Site#4)
Sample type
Routine
Lab sample
HA-241010-004
Laboratory
MSDH Lab
1.86 ug/l , sample collected Oct 9, 2024 14:20, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024
Collected
Oct 9, 2024 14:08
Sampling point
SM1 Wellhouse (Bacti Site#1)
Sample type
Routine
Lab sample
HA-241010-003
Laboratory
MSDH Lab
2.18 ug/l , sample collected Oct 9, 2024 14:08, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2024 – Dec 31, 2024

Routine (10).