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Failing Water Quality

Dillon, CO 80435

Summit County · Population served: 19,588

Water Systems Serving This Area

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DILLON TOWN OF
Surface water · Pop. 3,254
PWSID: CO0159035
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DILLON VALLEY DISTRICT
Surface water · Pop. 3,063
PWSID: CO0159040
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EAST DILLON WD
Surface water · Pop. 2,501
PWSID: CO0159045
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HAMILTON CREEK MD
Surface water · Pop. 200
PWSID: CO0159063
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KEYSTONE RANCH
Groundwater · Pop. 670
PWSID: CO0159065

Contaminants Detected

ContaminantDetected LevelEPA MCLHealth GuidelineStatus
Lead
37.0
15 ppb 1 ppb Exceeded

PFAS / Forever Chemicals

7 detected 3 above EPA limits
CompoundLevelEPA MCLHealth GuidelineStatus
PFOS22.0 ppt4 ppt4 pptExceeded
PFHxS13.0 ppt10 ppt10 pptExceeded
PFPeA8.0 pptNo standard—Unregulated
PFBS6.6 ppt2000 ppt100 pptBelow limit
PFHxA6.3 pptNo standard400 pptUnregulated
PFOA5.8 ppt4 ppt4 pptExceeded
PFHpA4.2 pptNo standard—Unregulated

Violation History (Last 5 Years)

35Total (5yr)
1Health-Based
28Major