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
| Violation | Type | Status | Period |
|---|---|---|---|
| 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).
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 |
|---|---|---|---|---|
| Fluoride | 958.1 µg/L 24% of the EPA limit 4000 µg/L
worst single sample: 1800 µg/L | 1507/1557 | SYR4 | 2012–2019 |
| Nitrate | 6961.5 µg/L 70% of the EPA limit 10000 µg/L
worst single sample: 8110 µg/L | 640/684 | SYR4 | 2012–2019 |
| Combined Radium (-226 And -228) | 6.53 pCi/L 131% of the EPA limit, at the 95th percentile of samples — 5 pCi/L
worst single sample: 15.2 pCi/L | 358/387 | SYR4 | 2012–2019 |
| Chloroform | 59.65 µg/L No EPA limit set
worst single sample: 111 µg/L | 348/484 | SYR4 | 2012–2019 |
| Bromodichloromethane | 12.96 µg/L No EPA limit set
worst single sample: 21 µg/L | 313/484 | SYR4 | 2012–2019 |
| TTHM | 80 µg/L 100% of the EPA limit 80 µg/L
worst single sample: 119 µg/L | 269/269 | SYR4 | 2012–2019 |
| Total Haloacetic Acids (HAA5) | 60 µg/L 100% of the EPA limit 60 µg/L
worst single sample: 99.4 µg/L | 241/270 | SYR4 | 2012–2019 |
| Dichloroacetic Acid | 33 µg/L No EPA limit set
worst single sample: 58 µg/L | 238/270 | SYR4 | 2012–2019 |
| Trichloroacetic Acid | 28.685 µg/L No EPA limit set
worst single sample: 41.4 µg/L | 230/270 | SYR4 | 2012–2019 |
| Dibromochloromethane | 3.5 µg/L No EPA limit set
worst single sample: 4.1 µg/L | 186/484 | SYR4 | 2012–2019 |
| Barium | 187 µg/L 9.4% of the EPA limit 2000 µg/L
worst single sample: 233 µg/L | 137/139 | SYR4 | 2012–2019 |
| Nitrate-Nitrite | 6559 µg/L 66% of the EPA limit 10000 µg/L
worst single sample: 7940 µg/L | 119/140 | SYR4 | 2012–2019 |
| Copper | 335.3 µg/L 26% of the EPA limit 1300 µg/L
worst single sample: 442 µg/L | 100/101 | SYR4 | 2012–2017 |
| Selenium | 6.58 µg/L 13% of the EPA limit 50 µg/L
worst single sample: 9.4 µg/L | 93/139 | SYR4 | 2012–2019 |
| Tetrachloroethylene | 4.7555 µg/L 95% of the EPA limit 5 µg/L
worst single sample: 16.6 µg/L | 58/317 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Phthalate | 0.5766 µg/L 9.6% of the EPA limit 6 µg/L
worst single sample: 3.5 µg/L | 47/261 | SYR4 | 2012–2019 |
| Chlordane | 0.8480 µg/L 42% of the EPA limit 2 µg/L
worst single sample: 1.01 µg/L | 37/252 | SYR4 | 2012–2019 |
| Di(2-ethylhexyl) Adipate | 0.1310 µg/L 0% of the EPA limit 400 µg/L
worst single sample: 0.1600 µg/L | 37/260 | SYR4 | 2012–2019 |
| Atrazine | 0.1455 µg/L 4.9% of the EPA limit 3 µg/L
worst single sample: 0.3900 µg/L | 31/260 | SYR4 | 2012–2019 |
| Bromoform | 2.105 µg/L No EPA limit set
worst single sample: 2.5 µg/L | 31/483 | SYR4 | 2012–2019 |
| Chromium | 11.12 µg/L 11% of the EPA limit 100 µg/L
worst single sample: 19 µg/L | 27/139 | SYR4 | 2012–2019 |
| Trichloroethylene | 0.8460 µg/L 17% of the EPA limit 5 µg/L
worst single sample: 0.9300 µg/L | 23/317 | SYR4 | 2012–2019 |
| cis-1,2-Dichloroethylene | 1.57 µg/L 2.2% of the EPA limit 70 µg/L
worst single sample: 1.7 µg/L | 23/317 | SYR4 | 2012–2019 |
| Heptachlor Epoxide | 0.0346 µg/L 17% of the EPA limit 0.2000 µg/L
worst single sample: 0.0373 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 | 47.865 µg/L 319% of the EPA limit, at the 95th percentile of samples — 15 µg/L
worst single sample: 82.9 µg/L | 12/101 | SYR4 | 2012–2017 |
| Monochloroacetic Acid | 6.34 µg/L No EPA limit set
worst single sample: 9.9 µg/L | 11/270 | SYR4 | 2012–2019 |
| 1,1,1-Trichloroethane | 0.1355 µg/L 0.1% of the EPA limit 200 µg/L
worst single sample: 0.1400 µg/L | 10/317 | SYR4 | 2012–2019 |
| Dibromoacetic Acid | 1.862 µg/L No EPA limit set
worst single sample: 1.97 µg/L | 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 | 4.768 µg/L 0.5% of the EPA limit 1000 µg/L
worst single sample: 6.9 µg/L | 9/317 | SYR4 | 2012–2019 |
| Arsenic | 1.2625 µg/L 13% of the EPA limit 10 µg/L
worst single sample: 1.4 µg/L | 6/140 | SYR4 | 2012–2019 |
| Ethylbenzene | 1.922 µg/L 0.3% of the EPA limit 700 µg/L
worst single sample: 2.1 µg/L | 3/316 | SYR4 | 2012–2019 |
| Mercury | 0.7235 µg/L 36% of the EPA limit 2 µg/L
worst single sample: 0.8000 µg/L | 3/138 | SYR4 | 2012–2019 |
| 1,2-Dichloroethane | 1.429 µg/L 29% of the EPA limit 5 µg/L
worst single sample: 1.5 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 | 0.1195 µg/L 6% of the EPA limit 2 µg/L
worst single sample: 0.1200 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.