PlainWater
States → Delaware

MILLSBORO WATER DEPARTMENT

PWS ID: DE0000622 · MILLSBORO, Delaware 19966

Population Served
8,568
Total Violations
25
Health-Based Violations
5
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
5,494
County
Sussex
School/Daycare
No
MCL Violations
5
Monitoring Violations
6
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Consumer Confidence Rule Other 5 2017
Trichloroethylene MCL 3 2005
Coliform (TCR) MR 3 2006
Lead and Copper Rule MR 3 2024
Coliform (TCR) MCL 2 1991

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 0 of 60 samples detected PFAS.

Contaminant Date Result MRL Status
PFEESA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 5/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeS 5/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFMBA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
NFDHA 5/15/2024 <0.02 µg/L 0.02 µg/L Not Detected
ADONA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFOS 5/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFHpS 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
lithium 5/15/2024 <9 µg/L 9 µg/L Not Detected
PFPeA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
NMeFOSAA 5/15/2024 <0.006 µg/L 0.006 µg/L Not Detected
NEtFOSAA 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 5/15/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFTA 5/15/2024 <0.008 µg/L 0.008 µg/L Not Detected
PFDA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 5/15/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFNA 5/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 5/15/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDoA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 5/15/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 5/15/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 5/15/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 11/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
PFDoA 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 11/4/2024 <0.002 µg/L 0.002 µg/L Not Detected
lithium 11/4/2024 <9 µg/L 9 µg/L Not Detected
PFHpA 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 11/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 11/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBS 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
11Cl-PF3OUdS 11/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
ADONA 11/4/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 11/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 11/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFPeS 11/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
NMeFOSAA 11/4/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFOA 11/4/2024 <0.004 µg/L 0.004 µg/L Not Detected
6:2 FTS 11/4/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 11/4/2024 <0.007 µg/L 0.007 µg/L Not Detected
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.