What was found in ZIP 80138
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 |
|---|---|---|---|
| Fluoride | 1648.2 µg/L 41% of the EPA limit 4000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Nitrate | 662 µg/L 6.6% of the EPA limit 10000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Nitrate-Nitrite | 645.65 µg/L 6.5% of the EPA limit 10000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Chlorite | 296.5 µg/L 30% of the EPA limit 1000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Barium | 170 µg/L 8.5% of the EPA limit 2000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Nitrite | 57 µg/L 5.7% of the EPA limit 1000 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| TTHM | 32.92 µg/L 41% of the EPA limit 80 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Lithium | 27.6 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025
Highest in the ZIP: 29.3 µg/L — COTTONWOOD WSD · 10,867 people · 2024 | 2/2 | UCMR-5 |
| Combined Uranium | 11.65 µg/L 39% of the EPA limit 30 µg/L Main supplier: PARKER WSD · 75,949 people · 2019
Highest in the ZIP: 22 µg/L — COTTONWOOD WSD · 10,867 people · 2016 | 2/2 | SYR4 |
| Dibromochloromethane | 14 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Gross Beta Particle Activity | 9.99 pCi/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019
Highest in the ZIP: 13 pCi/L — COTTONWOOD WSD · 10,867 people · 2012 | 2/2 | SYR4 |
| Bromodichloromethane | 10 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Adipate | 9.725 µg/L 2.4% of the EPA limit 400 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Total Haloacetic Acids (HAA5) | 9.475 µg/L 16% of the EPA limit 60 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Bromoform | 6.63 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Dibromoacetic Acid | 6.2 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Gross Alpha, Excl. Radon And U | 6.145 pCi/L 41% of the EPA limit 15 pCi/L Main supplier: PARKER WSD · 75,949 people · 2019
Highest in the ZIP: 6.182 pCi/L — COTTONWOOD WSD · 10,867 people · 2016 | 2/2 | SYR4 |
| Chloroform | 5.7 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Combined Radium (-226 And -228) | 4.665 pCi/L 93% of the EPA limit 5 pCi/L Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 4.6 µg/L 77% of the EPA limit 6 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Dichloroacetic Acid | 3.9 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Selenium | 3 µg/L 6% of the EPA limit 50 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Trichloroacetic Acid | 2.7 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 2/2 | SYR4 |
| Chromium | 2.6 µg/L 2.6% of the EPA limit 100 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Arsenic | 2 µg/L 20% of the EPA limit 10 µg/L Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Monobromoacetic Acid | 1.2 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2019 | 1/2 | SYR4 |
| Antimony, Total | 0.8500 µg/L 14% of the EPA limit 6 µg/L Highest in the ZIP: COTTONWOOD WSD · 10,867 people · 2019 | 1/2 | SYR4 |
| Diquat | 0.3800 µg/L 1.9% of the EPA limit 20 µg/L Highest in the ZIP: COTTONWOOD WSD · 10,867 people · 2019 | 1/2 | SYR4 |
| Pfpea | 0.0140 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025 | 2/2 | UCMR-5 |
| Pfhxa | 0.0119 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025 | 2/2 | UCMR-5 |
| Hexachlorobenzene | 0.0097 µg/L 1% of the EPA limit 1 µg/L Highest in the ZIP: COTTONWOOD WSD · 10,867 people · 2019 | 1/2 | SYR4 |
| Pfba | 0.0086 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025 | 2/2 | UCMR-5 |
| PFOA | 0.0048 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025 | 2/2 | UCMR-5 |
| PFBS | 0.0046 µg/L No EPA limit set Main supplier: PARKER WSD · 75,949 people · 2025
Highest in the ZIP: 0.0047 µg/L — COTTONWOOD WSD · 10,867 people · 2024 | 2/2 | UCMR-5 |
| Lead | 0.0020 mg/L 13% of the EPA limit 0.0150 mg/L Main supplier: PARKER WSD · 75,949 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 80138
| Supplier | State | Population served |
|---|---|---|
| PARKER WSD | CO | 75,949 |
| COTTONWOOD WSD | CO | 10,867 |
Frequently asked questions about ZIP 80138 tap water
Is the tap water in ZIP 80138 safe to drink?
EPA testing detected 35 contaminants across the water suppliers serving ZIP 80138. 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 80138?
2 public water suppliers report EPA drinking-water monitoring for ZIP 80138. Each is listed above with its population served.
What contaminants are in ZIP 80138's water?
EPA monitoring detected Fluoride, Nitrate, Nitrate-Nitrite, Chlorite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.