Tap WaterIndex

Tap water quality report

Artesian Water Company

EPA monitoring tested this supplier for 106 contaminants and detected 50. A detection doesn't automatically mean the water is unsafe — the level and EPA source for each is below.

106
contaminants tested
50
detected
231,114
people served
11
health-based violations
Water source
SWP
Ownership
Private
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.

11
health-based violations
21
violations on file
0
still open
ViolationTypeStatusPeriod
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-04-01 → 2011-06-30
MCL Health-based Resolved 2011-01-01 → 2011-03-31
MCL Health-based Resolved 2011-01-01 → 2011-03-31
MCL Health-based Resolved 2011-01-01 → 2011-03-31
MCL Health-based Resolved 2007-04-01 → 2007-04-30

PFAS detected

PFAS are industrial “forever chemicals”. These are the EPA's latest nationwide test results (2023–2025).
ContaminantMaxDetection ratePeriod
Pfba 0.0791 µg/L 21/45 2025
Pfpea 0.1060 µg/L 18/45 2025
Pfhxa 0.0722 µg/L 14/45 2025
PFOA 0.0231 µg/L 8/45 2025
PFBS 0.0087 µg/L 5/45 2025
Pfhpa 0.0189 µg/L 5/45 2025
PFHXS 0.0089 µg/L 3/45 2025
PFOS 0.0060 µg/L 2/45 2025

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 single worst sample on record — over 100% is worth reading, but is not by itself a violation. Formal violations are listed separately.
ContaminantLevel vs EPA limitDetection rateSourcePeriod
Fluoride
1800 µg/L 45%
of the EPA limit 4000 µg/L
 1507/1557 SYR4 2012–2019
Nitrate
8110 µg/L 81%
of the EPA limit 10000 µg/L
 640/684 SYR4 2012–2019
Combined Radium (-226 And -228)
15.2 pCi/L 304%
of the EPA limit, in the worst sample — 5 pCi/L
 358/387 SYR4 2012–2019
Chloroform
111 µg/L
No EPA limit set
 348/484 SYR4 2012–2019
Bromodichloromethane
21 µg/L
No EPA limit set
 313/484 SYR4 2012–2019
TTHM
119 µg/L 149%
of the EPA limit, in the worst sample — 80 µg/L
 269/269 SYR4 2012–2019
Total Haloacetic Acids (HAA5)
99.4 µg/L 166%
of the EPA limit, in the worst sample — 60 µg/L
 241/270 SYR4 2012–2019
Dichloroacetic Acid
58 µg/L
No EPA limit set
 238/270 SYR4 2012–2019
Trichloroacetic Acid
41.4 µg/L
No EPA limit set
 230/270 SYR4 2012–2019
Dibromochloromethane
4.1 µg/L
No EPA limit set
 186/484 SYR4 2012–2019
Barium
233 µg/L 12%
of the EPA limit 2000 µg/L
 137/139 SYR4 2012–2019
Nitrate-Nitrite
7940 µg/L 79%
of the EPA limit 10000 µg/L
 119/140 SYR4 2012–2019
Copper
442 µg/L 34%
of the EPA limit 1300 µg/L
 100/101 SYR4 2012–2017
Selenium
9.4 µg/L 19%
of the EPA limit 50 µg/L
 93/139 SYR4 2012–2019
Tetrachloroethylene
16.6 µg/L 332%
of the EPA limit, in the worst sample — 5 µg/L
 58/317 SYR4 2012–2019
Di(2-ethylhexyl) Phthalate
3.5 µg/L 58%
of the EPA limit 6 µg/L
 47/261 SYR4 2012–2019
Chlordane
1.01 µg/L 51%
of the EPA limit 2 µg/L
 37/252 SYR4 2012–2019
Di(2-ethylhexyl) Adipate
0.1600 µg/L 0%
of the EPA limit 400 µg/L
 37/260 SYR4 2012–2019
Atrazine
0.3900 µg/L 13%
of the EPA limit 3 µg/L
 31/260 SYR4 2012–2019
Bromoform
2.5 µg/L
No EPA limit set
 31/483 SYR4 2012–2019
Chromium
19 µg/L 19%
of the EPA limit 100 µg/L
 27/139 SYR4 2012–2019
Trichloroethylene
0.9300 µg/L 19%
of the EPA limit 5 µg/L
 23/317 SYR4 2012–2019
cis-1,2-Dichloroethylene
1.7 µg/L 2.4%
of the EPA limit 70 µg/L
 23/317 SYR4 2012–2019
Heptachlor Epoxide
0.0373 µg/L 19%
of the EPA limit 0.2000 µg/L
 18/232 SYR4 2012–2019
1,1-Dichloroethylene
0.3200 µg/L 4.6%
of the EPA limit 7 µg/L
 12/316 SYR4 2012–2019
Lead
82.9 µg/L 553%
of the EPA limit, in the worst sample — 15 µg/L
 12/101 SYR4 2012–2017
Monochloroacetic Acid
9.9 µg/L
No EPA limit set
 11/270 SYR4 2012–2019
1,1,1-Trichloroethane
0.1400 µg/L 0.1%
of the EPA limit 200 µg/L
 10/317 SYR4 2012–2019
Dibromoacetic Acid
1.97 µg/L
No EPA limit set
 10/270 SYR4 2012–2019
Lead
0.0010 mg/L 6.7%
of the EPA limit 0.0150 mg/L
 10/10 LCR 2026
Toluene
6.9 µg/L 0.7%
of the EPA limit 1000 µg/L
 9/317 SYR4 2012–2019
Arsenic
1.4 µg/L 14%
of the EPA limit 10 µg/L
 6/140 SYR4 2012–2019
Ethylbenzene
2.1 µg/L 0.3%
of the EPA limit 700 µg/L
 3/316 SYR4 2012–2019
Mercury
0.8000 µg/L 40%
of the EPA limit 2 µg/L
 3/138 SYR4 2012–2019
1,2-Dichloroethane
1.5 µg/L 30%
of the EPA limit 5 µg/L
 2/317 SYR4 2012–2019
Cadmium
0.0400 µg/L 0.8%
of the EPA limit 5 µg/L
 2/139 SYR4 2012–2019
Thallium, Total
0.1200 µg/L 6%
of the EPA limit 2 µg/L
 2/139 SYR4 2012–2019
Benzene
0.3400 µg/L 6.8%
of the EPA limit 5 µg/L
 1/317 SYR4 2012–2019
Chlorobenzene
2.8 µg/L 2.8%
of the EPA limit 100 µg/L
 1/317 SYR4 2012–2019
Pentachlorophenol
0.4700 µg/L 47%
of the EPA limit 1 µg/L
 1/237 SYR4 2012–2019
Toxaphene
2.5 µg/L 83%
of the EPA limit 3 µg/L
 1/249 SYR4 2012–2019
Xylenes, Total
15.1 µg/L 0.2%
of the EPA limit 10000 µg/L
 1/86 SYR4 2012–2019
56 contaminants tested, none detected
1,1,2-Trichloroethane1,2,4-Trichlorobenzene1,2-DIBROMO-3-CHLOROPROPANE1,2-Dichloropropane11Cl-PF3OUdS2,4,5-TP2,4-D4:2 Fts6:2 Fts8:2 Fts9Cl-PF3ONSAdonaAntimony, TotalBhc-GammaBenzo(A)PyreneBeryllium, TotalCyanideCarbofuranCarbon TetrachlorideDichloromethaneDalaponDinosebEthylene DibromideEndrinHexachlorobenzeneHfpo-DaHeptachlorHexachlorocyclopentadieneLassoMethoxychlorMonobromoacetic AcidNetfosaaNfdhaNmefosaaNitriteOxamylPfdaPfdoaPfeesaPfhpsPfmbaPfmpaPFNAPfpesPftaPftrdaPfunaPicloramSimazineStyreneTotal Polychlorinated Biphenyls (PCB)Vinyl ChlorideLithiumO-DichlorobenzeneP-Dichlorobenzenetrans-1,2-Dichloroethylene

Frequently asked questions about Artesian Water Company

Is Artesian Water Company tap water safe to drink?

EPA monitoring detected 50 contaminants in Artesian Water Company'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 Artesian Water Company's water?

EPA monitoring detected Fluoride, Nitrate, Combined Radium (-226 And -228), Chloroform, Bromodichloromethane, and others. The full list with the level and data source for each is above.

How many people does Artesian Water Company serve?

Artesian Water Company reports serving 231,114 people, per its EPA record.

Has Artesian Water Company had any water quality violations?

The EPA has 21 violations on file for Artesian Water Company, of which 11 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.