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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.

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

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 101–110 of 147 samples, newest first — collected November 8, 2022 to March 14, 2023. The summary above covers all 147.

52 results from the 10 samples listed here: 12 detected, 40 not detected. Across the whole record it is 157 of 590. 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 Aci Building Systems, LLC, every result from 101 to 110 of 147 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
Mar 14, 2023 14:51
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
CN-230315-006
Laboratory
MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Mar 14, 2023 14:51, sampling point TF101 Cyanide 1024 EPA method QC10204001X Jan 1, 2023 – Mar 31, 2023
Collected
Feb 22, 2023 13:14
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
IN-230223-003
Laboratory
MSDH Lab
0.0006 mg/l , sample collected Feb 22, 2023 13:14, sampling point TF101 Arsenic 1005 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0187 mg/l , sample collected Feb 22, 2023 13:14, sampling point TF101 Barium 1010 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Cadmium 1015 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0021 mg/l , sample collected Feb 22, 2023 13:14, sampling point TF101 Chromium 1020 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Mercury 1035 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
0.0016 mg/l , sample collected Feb 22, 2023 13:14, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Selenium 1045 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Feb 22, 2023 13:14, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 14, 2023 13:45
Sampling point
SM2 BLDG Main Front Breakroom (Bacti Site#4)
Sample type
Routine
Lab sample
TH-230215-014
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 14, 2023 13:45, sampling point SM2 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 14, 2023 13:20
Sampling point
SM1 Wellhouse (Bacti Site#1)
Sample type
Routine
Lab sample
TH-230215-013
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Feb 14, 2023 13:20, sampling point SM1 TTHM 2950 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 14, 2023 13:42
Sampling point
SM2 BLDG Main Front Breakroom (Bacti Site#4)
Sample type
Routine
Lab sample
HA-230215-014
Laboratory
MSDH Lab
1.19 ug/l , sample collected Feb 14, 2023 13:42, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Mar 31, 2023
Collected
Feb 14, 2023 13:25
Sampling point
SM1 Wellhouse (Bacti Site#1)
Sample type
Routine
Lab sample
HA-230215-013
Laboratory
MSDH Lab
1.32 ug/l , sample collected Feb 14, 2023 13:25, sampling point SM1 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Jan 1, 2023 – Mar 31, 2023
Collected
Jan 18, 2023 14:00
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
VO-230119-001
Laboratory
MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,2,4-Trichlorobenzene 2378 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Cis-1,2-Dichloroethylene 2380 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Xylenes, Total 2955 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Dichloromethane 2964 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 O-Dichlorobenzene 2968 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 P-Dichlorobenzene 2969 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Vinyl Chloride 2976 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,1-Dichloroethylene 2977 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Trans-1,2-Dichloroethylene 2979 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,2-Dichloroethane 2980 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,1,1-Trichloroethane 2981 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Carbon Tetrachloride 2982 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,2-Dichloropropane 2983 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Trichloroethylene 2984 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 1,1,2-Trichloroethane 2985 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Tetrachloroethylene 2987 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Chlorobenzene 2989 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Benzene 2990 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Toluene 2991 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Ethylbenzene 2992 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jan 18, 2023 14:00, sampling point TF101 Styrene 2996 EPA method 524.2 Jan 1, 2023 – Mar 31, 2023
Collected
Jan 11, 2023 14:04
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
NI-230112-001
Laboratory
MSDH Lab
4.65 mg/l , sample collected Jan 11, 2023 14:04, sampling point TF101 Nitrate-Nitrite 1038 EPA method QC10107041C Jan 1, 2023 – Mar 31, 2023
4.65 mg/l , sample collected Jan 11, 2023 14:04, sampling point TF101 Nitrate 1040 EPA method QC10107041C Jan 1, 2023 – Mar 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Jan 11, 2023 14:04, sampling point TF101 Nitrite 1041 EPA method QC10107041C Jan 1, 2023 – Mar 31, 2023
Collected
Nov 29, 2022 14:05
Sampling point
TF101 Treatment Facility
Sample type
Routine
Lab sample
IN-221130-019
Laboratory
MSDH Lab
0.0008 mg/l , sample collected Nov 29, 2022 14:05, sampling point TF101 Arsenic 1005 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.0186 mg/l , sample collected Nov 29, 2022 14:05, sampling point TF101 Barium 1010 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Cadmium 1015 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.0028 mg/l , sample collected Nov 29, 2022 14:05, sampling point TF101 Chromium 1020 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Fluoride 1025 EPA method QC 10-109-12-2-A Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Mercury 1035 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
0.0023 mg/l , sample collected Nov 29, 2022 14:05, sampling point TF101 Nickel 1036 EPA method 200.8 Not recorded
Not detected below 0.0025 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Selenium 1045 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Antimony, Total 1074 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Beryllium, Total 1075 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Not detected below 0.0005 mg/l Minimum Reporting Level , sample collected Nov 29, 2022 14:05, sampling point TF101 Thallium, Total 1085 EPA method 200.8 Oct 1, 2022 – Dec 31, 2022
Collected
Nov 8, 2022 14:20
Sampling point
SM2 BLDG Main Front Breakroom (Bacti Site#4)
Sample type
Routine
Lab sample
HA-221109-022
Laboratory
MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Nov 8, 2022 14:20, sampling point SM2 Total Haloacetic Acids (Haa5) 2456 EPA method 552.2 Oct 1, 2022 – Dec 31, 2022

Routine (10).