Is Christiana, PA Tap Water Safe? Quality & Contaminants

What was found in Christiana's water

The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.

Contaminant	Level vs EPA limit	Suppliers	Source
Nitrate	9190 µg/L 92% of the EPA limit 10000 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Copper	816.45 µg/L 63% of the EPA limit 1300 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019 Highest in the city: 1044.2 µg/L — VILLAS AT GEORGETOWN · 30 people · 2018	2/2	SYR4
Nitrite	589 µg/L 59% of the EPA limit 1000 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Fluoride	230 µg/L 5.8% of the EPA limit 4000 µg/L Highest in the city: VILLAS AT GEORGETOWN · 30 people · 2018	1/2	SYR4
Barium	191 µg/L 9.6% of the EPA limit 2000 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2018	1/2	SYR4
Lead	18.25 µg/L 122% of the EPA limit, at the 95th percentile of samples — 15 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019 Highest in the city: 135 µg/L — VILLAS AT GEORGETOWN · 30 people · 2018	2/2	SYR4
TTHM	72.08 µg/L 90% of the EPA limit 80 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Chloroform	60.55 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Combined Uranium	12.5421 µg/L 42% of the EPA limit 30 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Total Haloacetic Acids (HAA5)	10.545 µg/L 18% of the EPA limit 60 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Bromodichloromethane	10 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Dibromochloromethane	3.64 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	2/2	SYR4
Dichloroacetic Acid	1.6375 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019 Highest in the city: 2 µg/L — VILLAS AT GEORGETOWN · 30 people · 2018	2/2	SYR4
Dibromoacetic Acid	1.52 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Chromium	1 µg/L 1% of the EPA limit 100 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2018	1/2	SYR4
Toluene	1 µg/L 0.1% of the EPA limit 1000 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Bromoform	0.9500 µg/L No EPA limit set Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Antimony, Total	0.7000 µg/L 12% of the EPA limit 6 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2018	1/2	SYR4
Atrazine	0.1000 µg/L 3.3% of the EPA limit 3 µg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 2019	1/2	SYR4
Lead	0.0700 mg/L 467% above the EPA limit of 0.0150 mg/L Main supplier: CHRISTIANA MUNI WATER AUTH · 1,100 people · 1996 Highest in the city: 0.0980 mg/L — VILLAS AT GEORGETOWN · 30 people · 2016	2/2	LCR

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 the system's samples — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately. These are the utilities' own EPA-reported results, not a city-wide average. A detection means the lab measured the substance — it isn't the same as exceeding a legal limit. Hover a source tag to see the EPA program and years behind each figure.

Water suppliers serving Christiana

Supplier	Population served
CHRISTIANA MUNI WATER AUTH	1,100
VILLAS AT GEORGETOWN	30

Frequently asked questions about Christiana tap water

Is Christiana tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Christiana. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.

How many water suppliers serve Christiana?

2 public water suppliers report drinking-water monitoring for Christiana, Pennsylvania to the EPA. Each is listed above with its population served.

What contaminants are in Christiana's water?

The contaminants EPA monitoring detected in Christiana include Nitrate, Copper, Nitrite, Fluoride, Barium. The full list, with the level at the main supplier and the data source, is in the table above.

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.