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Tap water quality report

Harrington Water Department

EPA monitoring tested this supplier for 75 contaminants and detected 13. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

75
contaminants tested
13
detected
3,562
people served
4
health-based violations
Delaware rankingsLead in DelawarePFAS in Delaware
Water source
Ground water
Ownership
Local government
Counties served
Kent

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.

4
health-based violations
32
violations on file
1
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 1997-10-01 → 1997-12-31
MCL Health-based Resolved 1997-10-01 → 1997-12-31
MCL Health-based Resolved 1997-10-01 → 1997-12-31
MCL Health-based Archived 1997-10-01 → 1997-12-31
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
MR Monitoring Resolved 2021-10-01
MON Monitoring Resolved 2016-05-01 → 2016-05-31
MON Monitoring Resolved 2016-05-01 → 2016-05-31
MON Monitoring Resolved 2016-05-01 → 2016-05-31

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
1238.5 µg/L 31%
of the EPA limit 4000 µg/L
worst single sample: 2110 µg/L
78/103 SYR4 2012–2019
Copper
61.495 µg/L 4.7%
of the EPA limit 1300 µg/L
worst single sample: 330 µg/L
24/31 SYR4 2015–2018
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
 14/14 LCR 2025
Chloroform
12.8685 µg/L
No EPA limit set
worst single sample: 13.25 µg/L
8/8 SYR4 2014–2019
TTHM
15.965 µg/L 20%
of the EPA limit 80 µg/L
worst single sample: 16.02 µg/L
6/6 SYR4 2014–2019
Bromodichloromethane
3.046 µg/L
No EPA limit set
worst single sample: 3.17 µg/L
5/8 SYR4 2014–2019
Dichloroacetic Acid
5.3284 µg/L
No EPA limit set
worst single sample: 5.683 µg/L
5/6 SYR4 2014–2019
Lead
6.274 µg/L 42%
of the EPA limit 15 µg/L
worst single sample: 6.43 µg/L
5/31 SYR4 2015–2018
Total Haloacetic Acids (HAA5)
10.3826 µg/L 17%
of the EPA limit 60 µg/L
worst single sample: 10.962 µg/L
5/6 SYR4 2014–2019
Trichloroacetic Acid
5.1104 µg/L
No EPA limit set
worst single sample: 5.279 µg/L
4/6 SYR4 2014–2019
Dibromochloromethane
0.6815 µg/L
No EPA limit set
worst single sample: 0.6900 µg/L
2/8 SYR4 2014–2019
Bromoform
0.8300 µg/L
No EPA limit set
 1/8 SYR4 2014–2019
Combined Radium (-226 And -228)
0.3000 pCi/L 6%
of the EPA limit 5 pCi/L
 1/1 SYR4 2013
62 contaminants tested, none detected
1,1,1-Trichloroethane1,1,2-Trichloroethane1,1-Dichloroethylene1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloroethane1,2-Dichloropropane2,4,5-TP2,4-DAntimony, TotalArsenicAtrazineBhc-GammaBariumBenzeneBenzo(A)PyreneBeryllium, TotalChlorobenzeneCyanideCadmiumCarbofuranCarbon TetrachlorideChlordaneChromiumDichloromethaneDalaponDi(2-ethylhexyl) AdipateDi(2-ethylhexyl) PhthalateDibromoacetic AcidDinosebEthylene DibromideEndrinEthylbenzeneHexachlorobenzeneHeptachlorHeptachlor EpoxideHexachlorocyclopentadieneLassoMercuryMethoxychlorMonobromoacetic AcidMonochloroacetic AcidNitrateNitrate-NitriteNitriteOxamylPentachlorophenolPicloramSeleniumSimazineStyreneTetrachloroethyleneThallium, TotalTolueneToxapheneTrichloroethyleneVinyl ChlorideXylenes, Totalcis-1,2-DichloroethyleneO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Utility contact

Contact
LAHMAN, LEROY
Phone
302-398-3423
Email
[email protected]

Frequently asked questions about Harrington Water Department

Is Harrington Water Department tap water safe to drink?

EPA monitoring detected 13 contaminants in Harrington 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 Harrington Water Department's water?

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

How many people does Harrington Water Department serve?

Harrington Water Department reports serving 3,562 people in Delaware, per its EPA record.

Has Harrington Water Department had any water quality violations?

The EPA has 32 violations on file for Harrington Water Department, of which 4 are health-based (a contaminant limit or required treatment was breached) and 1 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.