Chemical and radiological sample results

MS0620004 , High Hill Water Association

38 of the 74 analytes this system has been tested for have been detected at least once, across 360 samples on record.

The other 36 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 360 samples on record, detections range from October 22, 2003 to July 13, 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 High Hill Water Association, 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	81 of 81 results	Aug 16, 2007	Aug 29, 2024
TTHM 2950	Organic Chemical	63 of 67 results	Sep 13, 2004	Dec 29, 2025
Total Haloacetic Acids (Haa5) 2456	Organic Chemical	60 of 66 results	Sep 13, 2004	Dec 29, 2025
Chloroform 2941	Organic Chemical	54 of 56 results	May 23, 2006	Dec 29, 2025
Lead 1030	Inorganic Chemical	54 of 81 results	Aug 16, 2007	Aug 29, 2024
Dichloroacetic Acid 2451	Organic Chemical	50 of 50 results	Aug 23, 2007	Dec 29, 2025
Bromodichloromethane 2943	Organic Chemical	48 of 56 results	May 23, 2006	Dec 29, 2025
Trichloroacetic Acid 2452	Organic Chemical	44 of 50 results	Aug 23, 2007	Nov 12, 2024
Fluoride 1025	Inorganic Chemical	26 of 26 results	Oct 22, 2003	Mar 24, 2025
Barium 1010	Inorganic Chemical	25 of 25 results	Oct 22, 2003	Mar 24, 2025
Chromium 1020	Inorganic Chemical	18 of 25 results	Oct 22, 2003	Mar 24, 2025
Gross Alpha, Incl. Radon & U 4002	Radionuclide	10 of 10 results	Dec 12, 2011	Jul 17, 2012
Nickel 1036	Inorganic Chemical	9 of 25 results	Apr 18, 2005	Mar 24, 2025
Monochloroacetic Acid 2450	Organic Chemical	8 of 50 results	Dec 14, 2009	Jul 20, 2015
Sodium 1052	Inorganic Chemical	6 of 6 results	Oct 9, 2008	Jul 13, 2026
Xylenes, Total 2955	Organic Chemical	5 of 23 results	Aug 10, 2016	Jul 13, 2026
Monobromoacetic Acid 2453	Organic Chemical	4 of 50 results	Dec 14, 2009	Feb 13, 2012
Sulfate 1055	Inorganic Chemical	3 of 3 results	Oct 22, 2003	Oct 9, 2008
Toluene 2991	Organic Chemical	2 of 23 results	Jun 3, 2024	Mar 11, 2025
Cyanide 1024	Inorganic Chemical	1 of 27 results	Oct 23, 2025	Oct 23, 2025
Dibromoacetic Acid 2454	Organic Chemical	1 of 50 results	Nov 28, 2011	Nov 28, 2011
Dibromochloromethane 2944	Organic Chemical	1 of 56 results	Jun 15, 2009	Jun 15, 2009
Calcium 1016	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Iron 1028	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Magnesium 1031	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Manganese 1032	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Potassium 1042	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Residue, Total, Filterable 1057	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Alkalinity, Caco3 Stability 1067	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Carbon Dioxide 1901	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Color 1905	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Hardness, Total (As Caco3) 1915	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
PH 1925	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Alkalinity, Total 1927	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Iron, Field Result FEFD	Inorganic Chemical	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Calculated Sodium NACA	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
PH, Field Result PHFD	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008
Temperature, Field Result TEMP	Water Quality	1 of 1 result	Oct 9, 2008	Oct 9, 2008

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 360 samples, newest first — collected July 26, 2023 to October 30, 2023. The summary above covers all 360.

37 results from the 10 samples listed here: 7 detected, 30 not detected. Across the whole record it is 589 of 1,789. 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 6 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 High Hill Water Association, every result from 61 to 70 of 360 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 30, 2023 12:30 Sampling point TF103 Treatment Facility 103 Sample type Routine Lab sample NI-231031-039 Laboratory MSDH Lab
Not detected below 0.1 mg/l Minimum Reporting Level , sample collected Oct 30, 2023 12:30, sampling point TF103	Nitrate-Nitrite 1038 EPA method QC10107041C	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.08 mg/l Minimum Reporting Level , sample collected Oct 30, 2023 12:30, sampling point TF103	Nitrate 1040 EPA method QC10107041C	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.02 mg/l Minimum Reporting Level , sample collected Oct 30, 2023 12:30, sampling point TF103	Nitrite 1041 EPA method QC10107041C	Oct 1, 2023 – Dec 31, 2023
Collected Oct 16, 2023 13:30 Sampling point TF103 Treatment Facility 103 Sample type Routine Lab sample CN-231017-007 Laboratory MSDH Lab
Not detected below 0.015 mg/l Minimum Reporting Level , sample collected Oct 16, 2023 13:30, sampling point TF103	Cyanide 1024 EPA method QC10204001X	Oct 1, 2023 – Dec 31, 2023
Collected Oct 11, 2023 13:30 Sampling point TF103 Treatment Facility 103 Sample type Routine Lab sample VO-231012-019 Laboratory MSDH Lab
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,2,4-Trichlorobenzene 2378 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Cis-1,2-Dichloroethylene 2380 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
0.541 ug/l , sample collected Oct 11, 2023 13:30, sampling point TF103	Xylenes, Total 2955 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Dichloromethane 2964 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	O-Dichlorobenzene 2968 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	P-Dichlorobenzene 2969 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Vinyl Chloride 2976 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,1-Dichloroethylene 2977 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Trans-1,2-Dichloroethylene 2979 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,2-Dichloroethane 2980 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,1,1-Trichloroethane 2981 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Carbon Tetrachloride 2982 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,2-Dichloropropane 2983 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Trichloroethylene 2984 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	1,1,2-Trichloroethane 2985 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Tetrachloroethylene 2987 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Chlorobenzene 2989 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Benzene 2990 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Toluene 2991 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Ethylbenzene 2992 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Oct 11, 2023 13:30, sampling point TF103	Styrene 2996 EPA method 524.2	Oct 1, 2023 – Dec 31, 2023
Collected Aug 16, 2023 12:30 Sampling point SMT Location withheld Sample type Routine Lab sample HA-230817-004 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2023 12:30, sampling point SMT	Total Haloacetic Acids (Haa5) 2456 EPA method 552.2	Jan 1, 2023 – Dec 31, 2023
Collected Aug 16, 2023 12:30 Sampling point SMT Location withheld Sample type Routine Lab sample TH-230817-006 Laboratory MSDH Lab
Not detected below 1 ug/l Minimum Reporting Level , sample collected Aug 16, 2023 12:30, sampling point SMT	TTHM 2950 EPA method 524.2	Jan 1, 2023 – Dec 31, 2023
Collected Jul 26, 2023 06:00 Sampling point LC0016 Location withheld Sample type Routine Lab sample PB-230727-036 Laboratory MSDH Lab
0.0265 mg/l , sample collected Jul 26, 2023 06:00, sampling point LC0016	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2023 06:00, sampling point LC0016	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Jul 26, 2023 07:00 Sampling point LC0025 Location withheld Sample type Routine Lab sample PB-230727-037 Laboratory MSDH Lab
0.0123 mg/l , sample collected Jul 26, 2023 07:00, sampling point LC0025	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2023 07:00, sampling point LC0025	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Jul 26, 2023 04:00 Sampling point LC0022 Location withheld Sample type Routine Lab sample PB-230727-039 Laboratory MSDH Lab
0.0072 mg/l , sample collected Jul 26, 2023 04:00, sampling point LC0022	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
0.5 ug/l , sample collected Jul 26, 2023 04:00, sampling point LC0022	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Jul 26, 2023 06:00 Sampling point LC0001 Location withheld Sample type Routine Lab sample PB-230727-035 Laboratory MSDH Lab
0.199 mg/l , sample collected Jul 26, 2023 06:00, sampling point LC0001	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2023 06:00, sampling point LC0001	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Collected Jul 26, 2023 06:42 Sampling point LC0003 Location withheld Sample type Routine Lab sample PB-230727-042 Laboratory MSDH Lab
0.131 mg/l , sample collected Jul 26, 2023 06:42, sampling point LC0003	Copper, Free 1022 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023
Not detected below 0.5 ug/l Minimum Reporting Level , sample collected Jul 26, 2023 06:42, sampling point LC0003	Lead 1030 EPA method 200.8	Jan 1, 2021 – Dec 31, 2023

Collected
Oct 30, 2023 12:30

Sampling point
TF103 Treatment Facility 103

Sample type
Routine

Lab sample
NI-231031-039

Laboratory
MSDH Lab

Monitoring period
Oct 1, 2023 – Dec 31, 2023
- 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
Oct 16, 2023 13:30

Sampling point
TF103 Treatment Facility 103

Sample type
Routine

Lab sample
CN-231017-007

Laboratory
MSDH Lab

Monitoring period
Oct 1, 2023 – Dec 31, 2023
- Cyanide 1024 EPA method QC10204001X
  
  Result
  Not detected below 0.015 mg/l Minimum Reporting Level
Collected
Oct 11, 2023 13:30

Sampling point
TF103 Treatment Facility 103

Sample type
Routine

Lab sample
VO-231012-019

Laboratory
MSDH Lab

Monitoring period
Oct 1, 2023 – Dec 31, 2023
- 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
  0.541 ug/l
- 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
Aug 16, 2023 12:30

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
HA-230817-004

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2023
- Total Haloacetic Acids (Haa5) 2456 EPA method 552.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Aug 16, 2023 12:30

Sampling point
SMT Location withheld

Sample type
Routine

Lab sample
TH-230817-006

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2023 – Dec 31, 2023
- TTHM 2950 EPA method 524.2
  
  Result
  Not detected below 1 ug/l Minimum Reporting Level
Collected
Jul 26, 2023 06:00

Sampling point
LC0016 Location withheld

Sample type
Routine

Lab sample
PB-230727-036

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0265 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 26, 2023 07:00

Sampling point
LC0025 Location withheld

Sample type
Routine

Lab sample
PB-230727-037

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0123 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 26, 2023 04:00

Sampling point
LC0022 Location withheld

Sample type
Routine

Lab sample
PB-230727-039

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.0072 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  0.5 ug/l
Collected
Jul 26, 2023 06:00

Sampling point
LC0001 Location withheld

Sample type
Routine

Lab sample
PB-230727-035

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.199 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level
Collected
Jul 26, 2023 06:42

Sampling point
LC0003 Location withheld

Sample type
Routine

Lab sample
PB-230727-042

Laboratory
MSDH Lab

Monitoring period
Jan 1, 2021 – Dec 31, 2023
- Copper, Free 1022 EPA method 200.8
  
  Result
  0.131 mg/l
- Lead 1030 EPA method 200.8
  
  Result
  Not detected below 0.5 ug/l Minimum Reporting Level

Routine (10).