What was found in ZIP 80016
The level at this ZIP's main supplier, the highest level anywhere in it, the EPA limit for each, and where the figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate | 1212.5 µg/L 12% of the EPA limit 10000 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 1830 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 1167.5 µg/L 12% of the EPA limit 10000 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 1325 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2015 | 2/2 | SYR4 |
| Fluoride | 974.5 µg/L 24% of the EPA limit 4000 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 1310 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Chlorite | 630 µg/L 63% of the EPA limit 1000 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019 | 1/2 | SYR4 |
| Barium | 56.72 µg/L 2.8% of the EPA limit 2000 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 291.1 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| TTHM | 33.86 µg/L 42% of the EPA limit 80 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 49.405 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 31.815 µg/L 53% of the EPA limit 60 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019 | 2/2 | SYR4 |
| Chloroform | 24.175 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019 | 2/2 | SYR4 |
| Lithium | 21.4 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2024
Highest in the ZIP: 23.2 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2023 | 2/2 | UCMR-5 |
| Dichloroacetic Acid | 19.25 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019 | 2/2 | SYR4 |
| Bromoform | 4.799 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 18.36 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Dibromochloromethane | 10.2 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 17.04 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Combined Uranium | 4.87 µg/L 16% of the EPA limit 30 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2017
Highest in the ZIP: 15 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Trichloroacetic Acid | 10.4 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 0.8750 pCi/L 5.8% of the EPA limit 15 pCi/L Main supplier: AURORA CITY OF · 533,407 people · 2017
Highest in the ZIP: 10.2768 pCi/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Bromodichloromethane | 8.92 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 9.96 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Selenium | 6.736 µg/L 13% of the EPA limit 50 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 8.37 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Arsenic | 1.46 µg/L 15% of the EPA limit 10 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 6.95 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 5.5675 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 6.74 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 3.89 pCi/L 78% of the EPA limit 5 pCi/L Main supplier: AURORA CITY OF · 533,407 people · 2017
Highest in the ZIP: 5.05 pCi/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Chromium | 2.365 µg/L 2.4% of the EPA limit 100 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Adipate | 1.4 µg/L 0.4% of the EPA limit 400 µg/L Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 1/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.3 µg/L 22% of the EPA limit 6 µg/L Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 1/2 | SYR4 |
| Monochloroacetic Acid | 1.224 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 1.167 µg/L 19% of the EPA limit 6 µg/L Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 1/2 | SYR4 |
| Cadmium | 0.1162 µg/L 2.3% of the EPA limit 5 µg/L Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 1/2 | SYR4 |
| Thallium, Total | 0.0771 µg/L 3.9% of the EPA limit 2 µg/L Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 1/2 | SYR4 |
| Mercury | 0.0290 µg/L 1.5% of the EPA limit 2 µg/L Main supplier: AURORA CITY OF · 533,407 people · 2019
Highest in the ZIP: 0.0397 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2019 | 2/2 | SYR4 |
| Pfpea | 0.0072 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2024
Highest in the ZIP: 0.0079 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2023 | 2/2 | UCMR-5 |
| Pfba | 0.0078 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2024 | 2/2 | UCMR-5 |
| Pfhxa | 0.0056 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2024
Highest in the ZIP: 0.0068 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2023 | 2/2 | UCMR-5 |
| PFBS | 0.0033 µg/L No EPA limit set Main supplier: AURORA CITY OF · 533,407 people · 2024
Highest in the ZIP: 0.0061 µg/L — ARAPAHOE CNTY WWWA · 31,000 people · 2023 | 2/2 | UCMR-5 |
| PFOA | 0.0046 µg/L No EPA limit set Highest in the ZIP: ARAPAHOE CNTY WWWA · 31,000 people · 2023 | 1/2 | UCMR-5 |
| Lead | 0.0025 mg/L 17% of the EPA limit 0.0150 mg/L Main supplier: AURORA CITY OF · 533,407 people · 2025 | 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.
Water suppliers serving ZIP 80016
| Supplier | State | Population served |
|---|---|---|
| AURORA CITY OF | CO | 533,407 |
| ARAPAHOE CNTY WWWA | CO | 31,000 |
Frequently asked questions about ZIP 80016 tap water
Is the tap water in ZIP 80016 safe to drink?
EPA testing detected 34 contaminants across the water suppliers serving ZIP 80016. 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 80016?
2 public water suppliers report EPA drinking-water monitoring for ZIP 80016. Each is listed above with its population served.
What contaminants are in ZIP 80016's water?
EPA monitoring detected Nitrate, Nitrate-Nitrite, Fluoride, Chlorite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.