HADLEY DPW WATER DIVISION (MA) Water Quality

HADLEY DPW WATER DIVISION is a small public water system in EPA region 1 that provides tap water for the 01035 zip codes. It has 8 facilities where the water supply was tested for 57 chemical contaminants that impact tap water quality and human health.

The maximum reported level of Manganese was 21.989 µg/L. There were 1 contamintants found in the HADLEY DPW WATER DIVISION water supply at levels that were above the minimum reporting level.

Table of Contents
Contaminants
Facilities
FAQ

Contaminants

Jump To Contaminant
1,1-dichloroethane (2)
1,2,3-trichloropropane (2)
1,3-butadiene (2)
1,4-dioxane (2)
11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (2)
1H,1H,2H,2H-perfluorodecane sulfonic acid (2)
1H,1H,2H,2H-perfluorohexane sulfonic acid (2)
1H,1H,2H,2H-perfluorooctane sulfonic acid (2)
2,4-dinitrotoluene (7)
2,6-dinitrotoluene (7)
4,4'-dichloro dichlorophenyl ethylene (DDE) (7)
4,8-dioxa-3H-perfluorononanoic acid (2)
9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2)
bromochloromethane (Halon 1011) (2)
bromomethane (2)
chlorate (4)
chlorodifluoromethane (HCFC-22) (2)
chloromethane (2)
chromium (4)
chromium-6 (4)
cobalt (4)
dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (8)
Germanium (4)
hexafluoropropylene oxide dimer acid (GenX) (2)
lithium (2)
Manganese (4)
methyl-tertiary-butyl-ether (MTBE) (8)
molinate (7)
molybdenum (4)
N-ethyl perfluorooctanesulfonamidoacetic acid (2)
N-methyl perfluorooctanesulfonamidoacetic acid (2)
nitrobenzene (8)
nonafluoro-3,6-dioxaheptanoic acid (2)
perchlorate (8)
perfluoro(2-ethoxyethane)sulfonic acid (2)
perfluoro-3-methoxypropanoic acid (2)
perfluoro-4-methoxybutanoic acid (2)
perfluorobutanesulfonic acid (4)
perfluorobutanoic acid (2)
perfluorodecanoic acid (2)
perfluorododecanoic acid (2)
perfluoroheptanesulfonic acid (2)
perfluoroheptanoic acid (4)
perfluorohexanesulfonic acid (4)
perfluorohexanoic acid (2)
perfluorononanoic acid (4)
perfluorooctanesulfonic acid (4)
perfluorooctanoic acid (4)
perfluoropentanesulfonic acid (2)
perfluoropentanoic acid (2)
perfluorotetradecanoic acid (2)
perfluorotridecanoic acid (2)
perfluoroundecanoic acid (2)
s-ethyl-dipropylthiocarbamate (EPTC) (7)
strontium (4)
terbacil (7)
vanadium (4)

1,1-dichloroethane (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,2,3-trichloropropane (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

1,3-butadiene (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.1 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.1 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.1 µg/L
Reference Level: ?

Contaminant Details

1,4-dioxane (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.07 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.07 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.07 µg/L
Reference Level: ?

Contaminant Details

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorodecane sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorohexane sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

1H,1H,2H,2H-perfluorooctane sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

2,4-dinitrotoluene (7)

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

2,6-dinitrotoluene (7)

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

4,4'-dichloro dichlorophenyl ethylene (DDE) (7)

1117002-01G

ℹ️

<0.8 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<0.8 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<0.8 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<0.8 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<0.8 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<0.8 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<0.8 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 0.8 µg/L
Reference Level: ?

Contaminant Details

4,8-dioxa-3H-perfluorononanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.002 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.002 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

bromochloromethane (Halon 1011) (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.06 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.06 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.06 µg/L
Reference Level: ?

Contaminant Details

bromomethane (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chlorate (4)

Karls Excavating

Distribution System ℹ️

48 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 28 µg/L

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

45 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 25 µg/L

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

23.228 µg/L

⚠️ Exceeds Reporting Level of 20 µg/L by 3.228 µg/L

1/14/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<20 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 20 µg/L
Reference Level: ?

Contaminant Details

chlorodifluoromethane (HCFC-22) (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.08 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.08 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.08 µg/L
Reference Level: ?

Contaminant Details

chloromethane (2)

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chromium (4)

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

chromium-6 (4)

Karls Excavating

Distribution System ℹ️

0.06 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.03 µg/L

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

0.091 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.061 µg/L

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

0.088 µg/L

⚠️ Exceeds Reporting Level of 0.03 µg/L by 0.058 µg/L

1/14/2015

10 years ago

Minimum Reporting Level: 0.03 µg/L
Reference Level: ?

Contaminant Details

cobalt (4)

EP from Callahan WTP

Callahan WTP ℹ️

<1 µg/L

Below Reporting Level

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<1 µg/L

Below Reporting Level

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (8)

1117002-02G

ℹ️

6.6 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 5.6 µg/L

11/20/2003

21 years ago

1117002-01G

ℹ️

3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2 µg/L

11/20/2003

21 years ago

1117002-03G

ℹ️

<1 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-04G

ℹ️

<1 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-02G

ℹ️

7.3 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 6.3 µg/L

7/22/2003

22 years ago

1117002-01G

ℹ️

3.7 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 2.7 µg/L

7/22/2003

22 years ago

1117002-03G

ℹ️

<1 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<1 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

Germanium (4)

EP from Callahan WTP

Callahan WTP ℹ️

<1 µg/L

Below Reporting Level

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<1 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<1 µg/L

Below Reporting Level

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<1 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

hexafluoropropylene oxide dimer acid (GenX) (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

lithium (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<9 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<9 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 9 µg/L
Reference Level: ?

Contaminant Details

Manganese (4)

Karls Excavating

Distribution System ℹ️

3.1 µg/L

Meets Reporting Threshold

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<1 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

21.989 µg/L

Meets Reporting Threshold

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

15.97 µg/L

Meets Reporting Threshold

1/14/2015

10 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: 300 µg/L

Contaminant Details

methyl-tertiary-butyl-ether (MTBE) (8)

1117002-01G

ℹ️

<5 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<5 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-03G

ℹ️

<5 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<5 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<5 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<5 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<5 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<5 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 5 µg/L
Reference Level: ?

Contaminant Details

molinate (7)

1117002-01G

ℹ️

<0.9 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<0.9 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<0.9 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<0.9 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<0.9 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<0.9 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<0.9 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 0.9 µg/L
Reference Level: ?

Contaminant Details

molybdenum (4)

Karls Excavating

Distribution System ℹ️

1.2 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.2 µg/L

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

1 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0 µg/L

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

1.342 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.342 µg/L

1/14/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

1.214 µg/L

⚠️ Exceeds Reporting Level of 1 µg/L by 0.214 µg/L

1/14/2015

10 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

N-methyl perfluorooctanesulfonamidoacetic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.006 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.006 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.006 µg/L
Reference Level: ?

Contaminant Details

nitrobenzene (8)

1117002-01G

ℹ️

<10 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<10 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-03G

ℹ️

<10 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<10 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<10 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<10 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<10 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<10 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 10 µg/L
Reference Level: ?

Contaminant Details

nonafluoro-3,6-dioxaheptanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.02 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.02 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.02 µg/L
Reference Level: ?

Contaminant Details

perchlorate (8)

1117002-01G

ℹ️

<4 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-02G

ℹ️

<4 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-03G

ℹ️

<4 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-04G

ℹ️

<4 µg/L

Below Reporting Level

11/20/2003

21 years ago

1117002-01G

ℹ️

<4 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<4 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<4 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<4 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 4 µg/L
Reference Level: ?

Contaminant Details

perfluoro(2-ethoxyethane)sulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoro-3-methoxypropanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoro-4-methoxybutanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanesulfonic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.09 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.09 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorobutanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.005 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.005 µg/L
Reference Level: ?

Contaminant Details

perfluorodecanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorododecanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanesulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluoroheptanoic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.01 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.01 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanesulfonic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.03 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorohexanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorononanoic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanesulfonic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.04 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.04 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluorooctanoic acid (4)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.02 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.02 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanesulfonic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.004 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.004 µg/L
Reference Level: ?

Contaminant Details

perfluoropentanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.003 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.003 µg/L
Reference Level: ?

Contaminant Details

perfluorotetradecanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.008 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.008 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.008 µg/L
Reference Level: ?

Contaminant Details

perfluorotridecanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.007 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.007 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.007 µg/L
Reference Level: ?

Contaminant Details

perfluoroundecanoic acid (2)

Callahan Treatment Plant Post Treatment

Callahan Treatment Plant ℹ️

<0.002 µg/L

Below Reporting Level

3/4/2025

7 months ago

POINT OF ENTRY POST TREATMENT

WELL #1 MT. WARNER ℹ️

<0.002 µg/L

Below Reporting Level

3/4/2025

7 months ago

Minimum Reporting Level: 0.002 µg/L
Reference Level: ?

Contaminant Details

s-ethyl-dipropylthiocarbamate (EPTC) (7)

1117002-01G

ℹ️

<1 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<1 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<1 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<1 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<1 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<1 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<1 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 1 µg/L
Reference Level: ?

Contaminant Details

strontium (4)

Karls Excavating

Distribution System ℹ️

170 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 169.7 µg/L

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

150 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 149.7 µg/L

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

175.667 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 175.367 µg/L

1/14/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

161.983 µg/L

⚠️ Exceeds Reporting Level of 0.3 µg/L by 161.683 µg/L

1/14/2015

10 years ago

Minimum Reporting Level: 0.3 µg/L
Reference Level: ?

Contaminant Details

terbacil (7)

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

1/7/2004

21 years ago

1117002-01G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-02G

ℹ️

<2 µg/L

Below Reporting Level

7/22/2003

22 years ago

1117002-03G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

1117002-04G

ℹ️

<2 µg/L

Below Reporting Level

6/30/2003

22 years ago

Minimum Reporting Level: 2 µg/L
Reference Level: ?

Contaminant Details

vanadium (4)

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

7/13/2015

10 years ago

EP from Callahan WTP

Callahan WTP ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Karls Excavating

Distribution System ℹ️

<0.2 µg/L

Below Reporting Level

1/14/2015

10 years ago

Minimum Reporting Level: 0.2 µg/L
Reference Level: ?

Contaminant Details

Sampling Facilities

Callahan Treatment Plant
Ground Water (GW)

Callahan Treatment Plant Post TreatmentEntry Point to the Distribution System (EP)

WELL #1 MT. WARNER
Ground Water (GW)

POINT OF ENTRY POST TREATMENTEntry Point to the Distribution System (EP)

Callahan WTP
Ground Water (GW)

EP from Callahan WTPEntry Point to the Distribution System (EP)

Distribution System
Ground Water (GW)

Karls ExcavatingMaximum Residence Time (MR)

()

1117002-01GEntry Point to the Distribution System (EP)

()

1117002-02GEntry Point to the Distribution System (EP)

()

1117002-03GEntry Point to the Distribution System (EP)

()

1117002-04GEntry Point to the Distribution System (EP)

FAQ

Is HADLEY DPW WATER DIVISION tap water safe to drink?

When was HADLEY DPW WATER DIVISION last tested for water contamination?

The latest water samples were taken on March 4th, 2025.

Contaminants

1,1-dichloroethane (2)

1,2,3-trichloropropane (2)

1,3-butadiene (2)

1,4-dioxane (2)

11-chloroeicosafluoro-3-oxaundecane-1-sulfonic acid (2)

1H,1H,2H,2H-perfluorodecane sulfonic acid (2)

1H,1H,2H,2H-perfluorohexane sulfonic acid (2)

1H,1H,2H,2H-perfluorooctane sulfonic acid (2)

2,4-dinitrotoluene (7)

2,6-dinitrotoluene (7)

4,4'-dichloro dichlorophenyl ethylene (DDE) (7)

4,8-dioxa-3H-perfluorononanoic acid (2)

9-chlorohexadecafluoro-3-oxanonane-1-sulfonic acid (2)

bromochloromethane (Halon 1011) (2)

bromomethane (2)

chlorate (4)

chlorodifluoromethane (HCFC-22) (2)

chloromethane (2)

chromium (4)

chromium-6 (4)

cobalt (4)

dimethyl tetrachloroterephthalate (DCPA) mono/di-acid degradate (8)

Germanium (4)

hexafluoropropylene oxide dimer acid (GenX) (2)

lithium (2)

Manganese (4)

methyl-tertiary-butyl-ether (MTBE) (8)

molinate (7)

molybdenum (4)

N-ethyl perfluorooctanesulfonamidoacetic acid (2)

N-methyl perfluorooctanesulfonamidoacetic acid (2)

nitrobenzene (8)

nonafluoro-3,6-dioxaheptanoic acid (2)

perchlorate (8)

perfluoro(2-ethoxyethane)sulfonic acid (2)

perfluoro-3-methoxypropanoic acid (2)

perfluoro-4-methoxybutanoic acid (2)

perfluorobutanesulfonic acid (4)

perfluorobutanoic acid (2)

perfluorodecanoic acid (2)

perfluorododecanoic acid (2)

perfluoroheptanesulfonic acid (2)

perfluoroheptanoic acid (4)

perfluorohexanesulfonic acid (4)

perfluorohexanoic acid (2)

perfluorononanoic acid (4)

perfluorooctanesulfonic acid (4)

perfluorooctanoic acid (4)

perfluoropentanesulfonic acid (2)

perfluoropentanoic acid (2)

perfluorotetradecanoic acid (2)

perfluorotridecanoic acid (2)

perfluoroundecanoic acid (2)

s-ethyl-dipropylthiocarbamate (EPTC) (7)

strontium (4)

terbacil (7)

vanadium (4)

Sampling Facilities

Callahan Treatment Plant Ground Water (GW)

WELL #1 MT. WARNER Ground Water (GW)

Callahan WTP Ground Water (GW)

Distribution System Ground Water (GW)

()

()

()

()

FAQ

Is HADLEY DPW WATER DIVISION tap water safe to drink?

When was HADLEY DPW WATER DIVISION last tested for water contamination?

Callahan Treatment Plant
Ground Water (GW)

WELL #1 MT. WARNER
Ground Water (GW)

Callahan WTP
Ground Water (GW)

Distribution System
Ground Water (GW)