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Tap water quality report

Middletown Water Department

EPA monitoring tested this supplier for 81 contaminants and detected 17. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

81
contaminants tested
17
detected
17,700
people served
14
health-based violations
Delaware rankingsLead in DelawarePFAS in Delaware
Water source
SWP
Ownership
Local government
Counties served
New Castle

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.

14
health-based violations
25
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2010-08-01 → 2010-08-31
MCL Health-based Resolved 2009-02-01 → 2009-02-28
MCL Health-based Resolved 2009-02-01 → 2009-02-28
MCL Health-based Resolved 2009-02-01 → 2009-02-28
MCL Health-based Resolved 2009-02-01 → 2009-02-28
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30
MCL Health-based Resolved 2008-09-01 → 2008-09-30

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.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
910 µg/L 23%
of the EPA limit 4000 µg/L
worst single sample: 1100 µg/L
166/171 SYR4 2012–2019
Copper
297.8 µg/L 23%
of the EPA limit 1300 µg/L
worst single sample: 453 µg/L
92/92 SYR4 2012–2018
Chloroform
20.4 µg/L
No EPA limit set
worst single sample: 63.2 µg/L
91/94 SYR4 2013–2019
TTHM
24.35 µg/L 30%
of the EPA limit 80 µg/L
worst single sample: 80.1 µg/L
88/88 SYR4 2014–2019
Bromodichloromethane
2.523 µg/L
No EPA limit set
worst single sample: 11.2 µg/L
79/94 SYR4 2013–2019
Dichloroacetic Acid
6.073 µg/L
No EPA limit set
worst single sample: 9 µg/L
79/90 SYR4 2014–2019
Total Haloacetic Acids (HAA5)
8.724 µg/L 15%
of the EPA limit 60 µg/L
worst single sample: 12.88 µg/L
77/90 SYR4 2014–2019
Trichloroacetic Acid
3.0385 µg/L
No EPA limit set
worst single sample: 3.49 µg/L
42/90 SYR4 2014–2019
Lead
3.04 µg/L 20%
of the EPA limit 15 µg/L
worst single sample: 10.8 µg/L
27/92 SYR4 2012–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 12/12 LCR 2024
Dibromochloromethane
4.498 µg/L
No EPA limit set
worst single sample: 4.54 µg/L
8/94 SYR4 2013–2019
Combined Radium (-226 And -228)
1.70585 pCi/L 34%
of the EPA limit 5 pCi/L
worst single sample: 1.751 pCi/L
4/4 SYR4 2015–2018
Barium
104.75 µg/L 5.2%
of the EPA limit 2000 µg/L
worst single sample: 107.5 µg/L
2/2 SYR4 2016
Bromoform
1.632 µg/L
No EPA limit set
worst single sample: 1.65 µg/L
2/94 SYR4 2013–2019
Chromium
0.6950 µg/L 0.7%
of the EPA limit 100 µg/L
worst single sample: 0.7000 µg/L
2/2 SYR4 2016
Monochloroacetic Acid
2.632 µg/L
No EPA limit set
worst single sample: 2.66 µg/L
2/90 SYR4 2014–2019
Dibromoacetic Acid
2.59 µg/L
No EPA limit set
 1/90 SYR4 2014–2019
64 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane11Cl-PF3OUdS4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalArsenicBenzeneBeryllium, TotalChlorobenzeneCadmiumCarbon TetrachlorideDichloromethaneEthylene DibromideEthylbenzeneHfpo-DaMercuryMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitrateNitrate-NitriteNitritePfbaPFBSPfdaPfdoaPfeesaPfhpaPfhpsPfhxaPFHXSPfmbaPfmpaPFNAPFOAPFOSPfpeaPfpesPftaPftrdaPfunaSeleniumStyreneTetrachloroethyleneThallium, TotalTolueneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
KERSEY, WAYNE
Phone
302-275-6072
Email
[email protected]

Frequently asked questions about Middletown Water Department

Is Middletown Water Department tap water safe to drink?

EPA monitoring detected 17 contaminants in Middletown 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 Middletown Water Department's water?

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

How many people does Middletown Water Department serve?

Middletown Water Department reports serving 17,700 people in Delaware, per its EPA record.

Has Middletown Water Department had any water quality violations?

The EPA has 25 violations on file for Middletown Water Department, of which 14 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.