Is Millsboro Water Department Tap Water Safe? Quality Report

Water source: Ground water
Ownership: Local government
Counties served: Sussex

Compliance record

Formal violations the EPA has on file for this supplier. A health-based violation means a contaminant limit or a required treatment was breached; the rest are monitoring or reporting failures — still violations, but not a measured health risk.

health-based violations

violations on file

still open

Violation	Type	Status	Period
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Resolved	2005-10-01 → 2005-12-31
MCL	Health-based	Archived	1991-01-01 → 1991-01-31
MCL	Health-based	Archived	1991-01-01 → 1991-01-31
MR	Monitoring	Resolved	2024-12-16
MR	Monitoring	Resolved	2024-12-16
MR	Monitoring	Resolved	2024-12-16
Other	Monitoring	Resolved	2017-07-01
Other	Monitoring	Resolved	2017-07-01

Other contaminants detected

Each bar shows the measured level as a share of the EPA limit: green is well under, amber is close to it, red is over. For lead and copper the limit applies to exactly the 90th-percentile figure shown, so red there means a real exceedance. For everything else the limit applies to a running annual average while the figure is the 95th percentile of this system's samples — over 100% is worth reading, but is not by itself a violation. Where a single sample came in higher than that percentile, it is noted under the bar. Formal violations are listed separately.

Contaminant	Level vs EPA limit	Detection rate	Source	Period
Copper	544.2 µg/L 42% of the EPA limit 1300 µg/L worst single sample: 2900 µg/L	103/108	SYR4	2012–2019
Lead	22.5 µg/L 150% of the EPA limit, at the 95th percentile of samples — 15 µg/L worst single sample: 66.7 µg/L	81/109	SYR4	2012–2019
Nitrate	5365 µg/L 54% of the EPA limit 10000 µg/L worst single sample: 5500 µg/L	62/82	SYR4	2012–2019
Fluoride	879.4 µg/L 22% of the EPA limit 4000 µg/L worst single sample: 1270 µg/L	49/122	SYR4	2012–2019
Chloroform	2.865 µg/L No EPA limit set worst single sample: 4.3 µg/L	46/87	SYR4	2012–2019
Bromodichloromethane	2.5705 µg/L No EPA limit set worst single sample: 3.6 µg/L	28/87	SYR4	2012–2019
Lead	0.0 mg/L 0% of the EPA limit 0.0150 mg/L	16/16	LCR	2026
Dibromochloromethane	1.853 µg/L No EPA limit set worst single sample: 2 µg/L	15/87	SYR4	2012–2019
Xylenes, Total	4.0735 µg/L 0% of the EPA limit 10000 µg/L worst single sample: 4.42 µg/L	10/83	SYR4	2012–2019
Nitrate-Nitrite	5465 µg/L 55% of the EPA limit 10000 µg/L worst single sample: 5500 µg/L	8/9	SYR4	2012–2019
TTHM	7.881 µg/L 9.9% of the EPA limit 80 µg/L worst single sample: 9.9 µg/L	7/7	SYR4	2014–2019
Total Haloacetic Acids (HAA5)	2.165 µg/L 3.6% of the EPA limit 60 µg/L worst single sample: 2.3 µg/L	4/7	SYR4	2014–2019
Dichloroacetic Acid	1.2965 µg/L No EPA limit set worst single sample: 1.3 µg/L	3/7	SYR4	2014–2019
Barium	96.7635 µg/L 4.8% of the EPA limit 2000 µg/L worst single sample: 101.3 µg/L	2/2	SYR4	2015–2019
Ethylbenzene	0.5490 µg/L 0.1% of the EPA limit 700 µg/L worst single sample: 0.5500 µg/L	2/86	SYR4	2012–2019
Trichloroacetic Acid	1.37 µg/L No EPA limit set worst single sample: 1.4 µg/L	2/7	SYR4	2014–2019
Bromoform	0.6300 µg/L No EPA limit set	1/87	SYR4	2012–2019
Chromium	1.7 µg/L 1.7% of the EPA limit 100 µg/L	1/2	SYR4	2015–2019
Combined Radium (-226 And -228)	0.9110 pCi/L 18% of the EPA limit 5 pCi/L	1/1	SYR4	2015
Dibromoacetic Acid	0.1000 µg/L No EPA limit set	1/7	SYR4	2014–2019
Monobromoacetic Acid	0.1000 µg/L No EPA limit set	1/7	SYR4	2014–2019
cis-1,2-Dichloroethylene	0.5000 µg/L 0.7% of the EPA limit 70 µg/L	1/86	SYR4	2012–2019

84 contaminants tested, none detected

1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicAtrazineBhc-GammaBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDinosebEthylene DibromideEndrinHexachlorobenzeneHfpo-DaHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonochloroacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneTotal Polychlorinated Biphenyls (PCB)ToxapheneTrichloroethyleneVinyl ChlorideLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact: BURKE, JAMIE
Phone: 302-934-8171
Email: [email protected]

Frequently asked questions about Millsboro Water Department

Is Millsboro Water Department tap water safe to drink?

EPA monitoring detected 22 contaminants in Millsboro Water Department's water. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and the utility's annual Consumer Confidence Report for its official compliance status.

What contaminants were detected in Millsboro Water Department's water?

EPA monitoring detected Copper, Lead, Nitrate, Fluoride, Chloroform, and others. The full list with the level and data source for each is above.

How many people does Millsboro Water Department serve?

Millsboro Water Department reports serving 8,568 people in Delaware, per its EPA record.

Has Millsboro Water Department had any water quality violations?

The EPA has 16 violations on file for Millsboro Water Department, of which 5 are health-based (a contaminant limit or required treatment was breached) and 0 remain open. The rest are monitoring or reporting failures.

Where does this data come from?

Every figure is official EPA drinking-water monitoring — the Lead & Copper Rule, the UCMR-5 nationwide testing program, and the EPA Six-Year Review — not our own testing. Each number is labelled with its source and period.