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D
35

Poor Water Quality

Chilmark, MA 02535

Dukes County · Population served: 7,200

Water Systems Serving This Area

🌊
Aquinnah Wampanoag
Groundwater · Pop. 89
PWSID: 010307001
🌊
MENEMSHA WATER COMPANY
Groundwater · Pop. 841
PWSID: MA4062000
🏔
BRYAN CO. RWS & SWMD #2
Surface water · Pop. 6,270
PWSID: OK1010604

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
21.0
15 ppb 1 ppb Exceeded
Copper
7790.0
1300 ppb 300 ppb Exceeded

Violation History (Last 5 Years)

96Total (5yr)
6Health-Based
76Major