What was found in Divide's water
The level at the city's main supplier, the highest level anywhere in the city, the EPA limit for each, and where every figure comes from.
| Contaminant | Level vs EPA limit | Suppliers | Source |
|---|---|---|---|
| Nitrate-Nitrite | 11880 µg/L 119% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2017 | 4/6 | SYR4 |
| Nitrate | 10700 µg/L 107% of the EPA limit, at the 95th percentile of samples — 10000 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 6/6 | SYR4 |
| Fluoride | 1953 µg/L 49% of the EPA limit 4000 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 2768 µg/L — DIVIDE WATER PROVIDERS INC · 570 people · 2018 | 6/6 | SYR4 |
| Barium | 98.4 µg/L 4.9% of the EPA limit 2000 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 5/6 | SYR4 |
| TTHM | 21.595 µg/L 27% of the EPA limit 80 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 78.81 µg/L — RAINBOW VALLEY WD · 130 people · 2019 | 6/6 | SYR4 |
| Nitrite | 61.3 µg/L 6.1% of the EPA limit 1000 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2017 | 1/6 | SYR4 |
| Chloroform | 52.9 µg/L No EPA limit set Highest in the city: RAINBOW VALLEY WD · 130 people · 2019 | 4/6 | SYR4 |
| Total Haloacetic Acids (HAA5) | 10.39 µg/L 17% of the EPA limit 60 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 46.4 µg/L — DIVIDE WATER PROVIDERS INC · 570 people · 2018 | 6/6 | SYR4 |
| Bromodichloromethane | 1.19 µg/L No EPA limit set Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 20.74 µg/L — RAINBOW VALLEY WD · 130 people · 2019 | 6/6 | SYR4 |
| Dichloroacetic Acid | 18.9525 µg/L No EPA limit set Highest in the city: RAINBOW VALLEY WD · 130 people · 2019 | 4/6 | SYR4 |
| Trichloroacetic Acid | 17.7975 µg/L No EPA limit set Highest in the city: RAINBOW VALLEY WD · 130 people · 2019 | 3/6 | SYR4 |
| Monobromoacetic Acid | 11.3 µg/L No EPA limit set Highest in the city: DIVIDE WATER PROVIDERS INC · 570 people · 2018 | 2/6 | SYR4 |
| Cyanide | 11 µg/L 5.5% of the EPA limit 200 µg/L Highest in the city: DIVIDE WATER PROVIDERS INC · 570 people · 2012 | 1/6 | SYR4 |
| Dibromochloromethane | 3.78 µg/L No EPA limit set Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 8.31 µg/L — RAINBOW VALLEY WD · 130 people · 2019 | 6/6 | SYR4 |
| Dibromoacetic Acid | 7.85 µg/L No EPA limit set Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 5/6 | SYR4 |
| Gross Alpha, Excl. Radon And U | 4.584 pCi/L 31% of the EPA limit 15 pCi/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 6.895 pCi/L — DIVIDE MPC MD NO 1 · 679 people · 2019 | 4/6 | SYR4 |
| Bromoform | 6.46 µg/L No EPA limit set Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 5/6 | SYR4 |
| Selenium | 5.287 µg/L 11% of the EPA limit 50 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 3/6 | SYR4 |
| Combined Uranium | 4.8 µg/L 16% of the EPA limit 30 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 4/6 | SYR4 |
| Combined Radium (-226 And -228) | 2 pCi/L 40% of the EPA limit 5 pCi/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 3.99 pCi/L — DIVIDE MPC MD NO 1 · 679 people · 2018 | 5/6 | SYR4 |
| Monochloroacetic Acid | 2.4 µg/L No EPA limit set Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 3.2 µg/L — DIVIDE WATER PROVIDERS INC · 570 people · 2018 | 5/6 | SYR4 |
| Chromium | 2.836 µg/L 2.8% of the EPA limit 100 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019 | 2/6 | SYR4 |
| Arsenic | 0.6820 µg/L 6.8% of the EPA limit 10 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 2.575 µg/L — DIVIDE MPC MD NO 1 · 679 people · 2018 | 2/6 | SYR4 |
| Thallium, Total | 0.0500 µg/L 2.5% of the EPA limit 2 µg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2019
Highest in the city: 1.2 µg/L — VALLEY MAINT CORP NO 2 · 55 people · 2014 | 2/6 | SYR4 |
| Beryllium, Total | 0.2890 µg/L 7.2% of the EPA limit 4 µg/L Highest in the city: DIVIDE WATER PROVIDERS INC · 570 people · 2018 | 1/6 | SYR4 |
| Cadmium | 0.1800 µg/L 3.6% of the EPA limit 5 µg/L Highest in the city: DIVIDE MPC MD NO 1 · 679 people · 2018 | 1/6 | SYR4 |
| Lead | 0.0030 mg/L 20% of the EPA limit 0.0150 mg/L Main supplier: HIGHLAND LAKES WD · 875 people · 2025
Highest in the city: 0.0067 mg/L — VALLEY MAINT CORP NO 2 · 55 people · 2025 | 6/6 | 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.
These are the utilities' own EPA-reported results, not a city-wide
average. A detection means the lab measured the
substance — it isn't the same as exceeding a legal limit. Hover a source
tag to see the EPA program and years behind each figure.
Water suppliers serving Divide
| Supplier | Population served |
|---|---|
| HIGHLAND LAKES WD | 875 |
| DIVIDE MPC MD NO 1 | 679 |
| DIVIDE WATER PROVIDERS INC | 570 |
| RAINBOW VALLEY WD | 130 |
| DIVIDE SOUTH | 74 |
| VALLEY MAINT CORP NO 2 | 55 |
Frequently asked questions about Divide tap water
Is Divide tap water safe to drink?
EPA testing detected 27 contaminants in the water serving Divide. A detection isn't the same as a violation — most detected levels are within federal limits. Check the level and source for each contaminant above, and your utility's annual Consumer Confidence Report for the official compliance status.
How many water suppliers serve Divide?
6 public water suppliers report drinking-water monitoring for Divide, Colorado to the EPA. Each is listed above with its population served.
What contaminants are in Divide's water?
The contaminants EPA monitoring detected in Divide include Nitrate-Nitrite, Nitrate, Fluoride, Barium, TTHM. The full list, with the level at the main supplier and the data source, is in the table above.
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.