What was found in ZIP 80004
The highest level seen across the suppliers serving this ZIP, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Fluoride | 1080 µg/L 27% of the EPA limit 4000 µg/L | 3/3 | SYR4 |
| Nitrate | 660 µg/L 6.6% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| Nitrate-Nitrite | 290 µg/L 2.9% of the EPA limit 10000 µg/L | 3/3 | SYR4 |
| TTHM | 156 µg/L 195% of the EPA limit, in the worst sample — 80 µg/L | 3/3 | SYR4 |
| Total Haloacetic Acids (HAA5) | 79.9 µg/L 133% of the EPA limit, in the worst sample — 60 µg/L | 3/3 | SYR4 |
| Chloroform | 73 µg/L No EPA limit set | 3/3 | SYR4 |
| Barium | 50 µg/L 2.5% of the EPA limit 2000 µg/L | 3/3 | SYR4 |
| Trichloroacetic Acid | 43.1 µg/L No EPA limit set | 3/3 | SYR4 |
| Dichloroacetic Acid | 26.8 µg/L No EPA limit set | 3/3 | SYR4 |
| Cyanide | 25 µg/L 13% of the EPA limit 200 µg/L | 1/3 | SYR4 |
| Bromodichloromethane | 11.6 µg/L No EPA limit set | 3/3 | SYR4 |
| Lithium | 10.8 µg/L No EPA limit set | 2/3 | UCMR-5 |
| Selenium | 6.8 µg/L 14% of the EPA limit 50 µg/L | 1/3 | SYR4 |
| Combined Uranium | 6.3 µg/L 21% of the EPA limit 30 µg/L | 3/3 | SYR4 |
| Dibromochloromethane | 6 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Alpha, Excl. Radon And U | 5.6 pCi/L 37% of the EPA limit 15 pCi/L | 3/3 | SYR4 |
| Monochloroacetic Acid | 4.9 µg/L No EPA limit set | 3/3 | SYR4 |
| Gross Beta Particle Activity | 4.8 pCi/L No EPA limit set | 3/3 | SYR4 |
| Chromium | 4 µg/L 4% of the EPA limit 100 µg/L | 1/3 | SYR4 |
| Monobromoacetic Acid | 3.2 µg/L No EPA limit set | 1/3 | SYR4 |
| Combined Radium (-226 And -228) | 2.6 pCi/L 52% of the EPA limit 5 pCi/L | 3/3 | SYR4 |
| Dalapon | 2.2 µg/L 1.1% of the EPA limit 200 µg/L | 1/3 | SYR4 |
| Dibromoacetic Acid | 1.7 µg/L No EPA limit set | 1/3 | SYR4 |
| Arsenic | 1.2 µg/L 12% of the EPA limit 10 µg/L | 1/3 | SYR4 |
| Bromoform | 1 µg/L No EPA limit set | 1/3 | SYR4 |
| Antimony, Total | 0.8800 µg/L 15% of the EPA limit 6 µg/L | 2/3 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 0.8200 µg/L 14% of the EPA limit 6 µg/L | 1/3 | SYR4 |
| Carbon Tetrachloride | 0.5000 µg/L 10% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| 2,4-D | 0.1000 µg/L 0.1% of the EPA limit 70 µg/L | 1/3 | SYR4 |
| Cadmium | 0.1000 µg/L 2% of the EPA limit 5 µg/L | 1/3 | SYR4 |
| Mercury | 0.0700 µg/L 3.5% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Beryllium, Total | 0.0600 µg/L 1.5% of the EPA limit 4 µg/L | 1/3 | SYR4 |
| Thallium, Total | 0.0600 µg/L 3% of the EPA limit 2 µg/L | 1/3 | SYR4 |
| Lead | 0.0031 mg/L 21% of the EPA limit 0.0150 mg/L | 3/3 | 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 single worst sample on
record — over 100% is worth reading, but is not by itself a violation.
Formal violations are listed separately.
Water suppliers serving ZIP 80004
| Supplier | State | Population served |
|---|---|---|
| DENVER WATER BOARD | CO | 1,287,000 |
| ARVADA CITY OF | CO | 171,610 |
| NORTH TABLE MOUNTAIN WSD | CO | 10,000 |
Frequently asked questions about ZIP 80004 tap water
Is the tap water in ZIP 80004 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 80004. A detection isn't the same as a violation — most levels are within federal limits. See each level and source above, and your utility's annual Consumer Confidence Report for the official status.
Which water suppliers serve ZIP 80004?
3 public water suppliers report EPA drinking-water monitoring for ZIP 80004. Each is listed above with its population served.
What contaminants are in ZIP 80004's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, TTHM, Total Haloacetic Acids (HAA5), and others across this ZIP's suppliers. The full list with levels and sources is above.