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38

Poor Water Quality

Sudbury, MA 01776

Middlesex County · Population served: 29,158

Water Systems Serving This Area

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MAYNARD DPW, WATER DIVISION
Groundwater · Pop. 10,401
PWSID: MA2174000
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SUDBURY WATER DISTRICT
Groundwater · Pop. 18,416
PWSID: MA3288000
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THREE RIVERS M H COMMUNITY
Groundwater · Pop. 63
PWSID: ME0008251
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MAPLE RIDGE MOBILE HOME PARK
Groundwater · Pop. 110
PWSID: ME0095340
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SANDY BOTTOM ESTATES MHP
Groundwater · Pop. 168
PWSID: ME0095615

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
9.7
15 ppb 1 ppb Warning

PFAS / Forever Chemicals

11 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOA9.0 ppt4 ppt4 pptExceeded
PFOA7.1 ppt4 ppt4 pptExceeded
PFHxA6.0 pptNo standard400 pptUnregulated
PFBA5.0 pptNo standard500 pptUnregulated
PFPeA5.0 pptNo standard—Unregulated
PFOS4.2 ppt4 ppt4 pptExceeded
PFHxA4.0 pptNo standard400 pptUnregulated
PFBS4.0 ppt2000 ppt100 pptBelow limit

Violation History (Last 5 Years)

29Total (5yr)
15Health-Based
3Major