What was found in ZIP 80603
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-Nitrite | 7481 µg/L 75% of the EPA limit 10000 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 3/4 | SYR4 |
| Nitrate | 7480.5 µg/L 75% of the EPA limit 10000 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 3/4 | SYR4 |
| Fluoride | 1518.5 µg/L 38% of the EPA limit 4000 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 3/4 | SYR4 |
| Barium | 91.3 µg/L 4.6% of the EPA limit 2000 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2017
Highest in the ZIP: 92.6 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 3/4 | SYR4 |
| TTHM | 63.86 µg/L 80% of the EPA limit 80 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019
Highest in the ZIP: 77.88 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 4/4 | SYR4 |
| 1,1-Dichloroethylene | 76.105 µg/L 1087% of the EPA limit, at the 95th percentile of samples — 7 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 1/4 | SYR4 |
| Chloroform | 8.05 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2018
Highest in the ZIP: 50.775 µg/L — CENTRAL WELD CNTY WD · 7,662 people · 2019 | 4/4 | SYR4 |
| Total Haloacetic Acids (HAA5) | 40.565 µg/L 68% of the EPA limit 60 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019
Highest in the ZIP: 48.874 µg/L — CENTRAL WELD CNTY WD · 7,662 people · 2019 | 4/4 | SYR4 |
| Dibromochloromethane | 8.995 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2018
Highest in the ZIP: 31.04 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 3/4 | SYR4 |
| Lithium | 26.7 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2024 | 3/4 | UCMR-5 |
| Bromodichloromethane | 5.4 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2018
Highest in the ZIP: 25.34 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 4/4 | SYR4 |
| Trichloroacetic Acid | 22.65 µg/L No EPA limit set Highest in the ZIP: CENTRAL WELD CNTY WD · 7,662 people · 2019 | 2/4 | SYR4 |
| Combined Uranium | 20.15 µg/L 67% of the EPA limit 30 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2017 | 3/4 | SYR4 |
| Dichloroacetic Acid | 18.7 µg/L No EPA limit set Highest in the ZIP: CENTRAL WELD CNTY WD · 7,662 people · 2019 | 2/4 | SYR4 |
| Bromoform | 9.2 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2018
Highest in the ZIP: 11.38 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 3/4 | SYR4 |
| Dibromoacetic Acid | 10.14 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 2/4 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.6715 pCi/L 31% of the EPA limit 15 pCi/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2017 | 3/4 | SYR4 |
| Selenium | 3.64 µg/L 7.3% of the EPA limit 50 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2017
Highest in the ZIP: 4.6 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 3/4 | SYR4 |
| Xylenes, Total | 1.43 µg/L 0% of the EPA limit 10000 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019
Highest in the ZIP: 4.39 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 2/4 | SYR4 |
| Monochloroacetic Acid | 4.1705 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 2/4 | SYR4 |
| Gross Beta Particle Activity | 3.7 pCi/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2013 | 1/4 | SYR4 |
| Monobromoacetic Acid | 3.08 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 1/4 | SYR4 |
| Chromium | 2.9 µg/L 2.9% of the EPA limit 100 µg/L Highest in the ZIP: LOCHBUIE TOWN OF · 6,518 people · 2017 | 2/4 | SYR4 |
| Arsenic | 2.6 µg/L 26% of the EPA limit 10 µg/L Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 2/4 | SYR4 |
| Combined Radium (-226 And -228) | 0.1750 pCi/L 3.5% of the EPA limit 5 pCi/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2012
Highest in the ZIP: 1.7 pCi/L — TODD CREEK VILLAGE MD · 7,363 people · 2019 | 3/4 | SYR4 |
| Tetrachloroethylene | 1.28 µg/L 26% of the EPA limit 5 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 1/4 | SYR4 |
| Di(2-ethylhexyl) Phthalate | 1.1 µg/L 18% of the EPA limit 6 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 1/4 | SYR4 |
| Antimony, Total | 1 µg/L 17% of the EPA limit 6 µg/L Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 1/4 | SYR4 |
| Trichloroethylene | 1 µg/L 20% of the EPA limit 5 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 1/4 | SYR4 |
| Ethylbenzene | 0.9800 µg/L 0.1% of the EPA limit 700 µg/L Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2019 | 1/4 | SYR4 |
| cis-1,2-Dichloroethylene | 0.9700 µg/L 1.4% of the EPA limit 70 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2019 | 1/4 | SYR4 |
| Picloram | 0.2750 µg/L 0.1% of the EPA limit 500 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2018 | 1/4 | SYR4 |
| Cadmium | 0.2000 µg/L 4% of the EPA limit 5 µg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2017 | 1/4 | SYR4 |
| PFBS | 0.0380 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2023 | 2/4 | UCMR-5 |
| Pfpea | 0.0114 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2024 | 3/4 | UCMR-5 |
| Pfba | 0.0095 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2024 | 2/4 | UCMR-5 |
| Pfhxa | 0.0044 µg/L No EPA limit set Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2024
Highest in the ZIP: 0.0087 µg/L — TODD CREEK VILLAGE MD · 7,363 people · 2023 | 3/4 | UCMR-5 |
| PFOS | 0.0068 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2023 | 1/4 | UCMR-5 |
| Lead | 0.0 mg/L 0% of the EPA limit 0.0150 mg/L Main supplier: SOUTH ADAMS COUNTY WSD · 75,559 people · 2025
Highest in the ZIP: 0.0060 mg/L — CENTRAL WELD CNTY WD · 7,662 people · 1999 | 4/4 | LCR |
| PFHXS | 0.0057 µg/L No EPA limit set Highest in the ZIP: TODD CREEK VILLAGE MD · 7,363 people · 2023 | 2/4 | UCMR-5 |
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 80603
| Supplier | State | Population served |
|---|---|---|
| SOUTH ADAMS COUNTY WSD | CO | 75,559 |
| CENTRAL WELD CNTY WD | CO | 7,662 |
| TODD CREEK VILLAGE MD | CO | 7,363 |
| LOCHBUIE TOWN OF | CO | 6,518 |
Frequently asked questions about ZIP 80603 tap water
Is the tap water in ZIP 80603 safe to drink?
EPA testing detected 40 contaminants across the water suppliers serving ZIP 80603. 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 80603?
4 public water suppliers report EPA drinking-water monitoring for ZIP 80603. Each is listed above with its population served.
What contaminants are in ZIP 80603's water?
EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Barium, TTHM, and others across this ZIP's suppliers. The full list with levels and sources is above.