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Tap water quality report

ZIP 80134 — Denver, CO

EPA monitoring across the 5 water suppliers serving ZIP 80134 in Denver, CO detected 45 contaminants. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier below, with the EPA limit for each.

5
water suppliers
1,410,132
people served
45
contaminants found

What was found in ZIP 80134

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.

ContaminantLevel vs EPA limitSuppliersSource
Nitrate-Nitrite
252 µg/L 2.5%
of the EPA limit 10000 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 2115 µg/L — PINERY WWD · 12,901 people · 2019
3/5 SYR4
Nitrate
250 µg/L 2.5%
of the EPA limit 10000 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 2000 µg/L — PINERY WWD · 12,901 people · 2019
4/5 SYR4
Fluoride
803 µg/L 20%
of the EPA limit 4000 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 1648.2 µg/L — PARKER WSD · 75,949 people · 2019
5/5 SYR4
Chlorite
296.5 µg/L 30%
of the EPA limit 1000 µg/L
Highest in the ZIP: PARKER WSD · 75,949 people · 2019
1/5 SYR4
Barium
43.51 µg/L 2.2%
of the EPA limit 2000 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 246 µg/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Nitrite
111 µg/L 11%
of the EPA limit 1000 µg/L
Highest in the ZIP: PINERY WWD · 12,901 people · 2019
2/5 SYR4
TTHM
32.59 µg/L 41%
of the EPA limit 80 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 54 µg/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Lithium
10.8 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2025
Highest in the ZIP: 42 µg/L — MERIDIAN MD · 23,415 people · 2024
5/5 UCMR-5
Cyanide
24.85 µg/L 12%
of the EPA limit 200 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2015
1/5 SYR4
Combined Uranium
5.775 µg/L 19%
of the EPA limit 30 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 24.35 µg/L — PINERY WWD · 12,901 people · 2019
4/5 SYR4
Total Haloacetic Acids (HAA5)
23 µg/L 38%
of the EPA limit 60 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
5/5 SYR4
Dibromochloromethane
3.9 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 21.955 µg/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Chloroform
20.265 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
5/5 SYR4
Bromodichloromethane
8.9 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 17.735 µg/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Gross Alpha, Excl. Radon And U
2 pCi/L 13%
of the EPA limit 15 pCi/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2018
Highest in the ZIP: 16.191 pCi/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Gross Beta Particle Activity
3 pCi/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2018
Highest in the ZIP: 13 pCi/L — COTTONWOOD WSD · 10,867 people · 2012
3/5 SYR4
Dichloroacetic Acid
12.8 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
5/5 SYR4
Monochloroacetic Acid
2.9 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 10.4 µg/L — PINERY WWD · 12,901 people · 2019
2/5 SYR4
Di(2-ethylhexyl) Adipate
9.725 µg/L 2.4%
of the EPA limit 400 µg/L
Highest in the ZIP: PARKER WSD · 75,949 people · 2019
1/5 SYR4
Dibromoacetic Acid
1.4 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 8.855 µg/L — PINERY WWD · 12,901 people · 2019
4/5 SYR4
Trichloroacetic Acid
6.855 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 8.23 µg/L — MERIDIAN MD · 23,415 people · 2019
5/5 SYR4
Bromoform
0.8350 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 6.875 µg/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Selenium
5.44 µg/L 11%
of the EPA limit 50 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
3/5 SYR4
Combined Radium (-226 And -228)
1.95 pCi/L 39%
of the EPA limit 5 pCi/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2014
Highest in the ZIP: 5.355 pCi/L — PINERY WWD · 12,901 people · 2019
5/5 SYR4
Di(2-ethylhexyl) Phthalate
4.6 µg/L 77%
of the EPA limit 6 µg/L
Highest in the ZIP: PARKER WSD · 75,949 people · 2019
2/5 SYR4
Toluene
4.43 µg/L 0.4%
of the EPA limit 1000 µg/L
Highest in the ZIP: PINERY WWD · 12,901 people · 2019
1/5 SYR4
Arsenic
1.14 µg/L 11%
of the EPA limit 10 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 3.86 µg/L — PINERY WWD · 12,901 people · 2019
3/5 SYR4
Monobromoacetic Acid
2.82 µg/L
No EPA limit set
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
4/5 SYR4
Chromium
1.7 µg/L 1.7%
of the EPA limit 100 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 2.6 µg/L — PARKER WSD · 75,949 people · 2019
3/5 SYR4
Antimony, Total
0.2285 µg/L 3.8%
of the EPA limit 6 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
Highest in the ZIP: 2.3 µg/L — PINERY WWD · 12,901 people · 2019
3/5 SYR4
Carbon Tetrachloride
0.4930 µg/L 9.9%
of the EPA limit 5 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 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
1/5 SYR4
2,4-D
0.1000 µg/L 0.1%
of the EPA limit 70 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 SYR4
Cadmium
0.0960 µg/L 1.9%
of the EPA limit 5 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 SYR4
Mercury
0.0700 µg/L 3.5%
of the EPA limit 2 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 SYR4
Hexachlorocyclopentadiene
0.0640 µg/L 0.1%
of the EPA limit 50 µg/L
Highest in the ZIP: PINERY WWD · 12,901 people · 2019
1/5 SYR4
Beryllium, Total
0.0600 µg/L 1.5%
of the EPA limit 4 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 SYR4
Thallium, Total
0.0600 µg/L 3%
of the EPA limit 2 µg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2019
1/5 SYR4
Pfpea
0.0140 µg/L
No EPA limit set
Highest in the ZIP: PARKER WSD · 75,949 people · 2025
3/5 UCMR-5
Pfhxa
0.0119 µg/L
No EPA limit set
Highest in the ZIP: PARKER WSD · 75,949 people · 2025
3/5 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
2/5 SYR4
Pfba
0.0086 µg/L
No EPA limit set
Highest in the ZIP: PARKER WSD · 75,949 people · 2025
3/5 UCMR-5
PFBS
0.0053 µg/L
No EPA limit set
Highest in the ZIP: PINERY WWD · 12,901 people · 2025
3/5 UCMR-5
PFOA
0.0048 µg/L
No EPA limit set
Highest in the ZIP: PARKER WSD · 75,949 people · 2025
2/5 UCMR-5
Lead
0.0031 mg/L 21%
of the EPA limit 0.0150 mg/L
Main supplier: DENVER WATER BOARD · 1,287,000 people · 2025
5/5 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 80134

SupplierStatePopulation served
DENVER WATER BOARD CO 1,287,000
PARKER WSD CO 75,949
MERIDIAN MD CO 23,415
PINERY WWD CO 12,901
COTTONWOOD WSD CO 10,867

Frequently asked questions about ZIP 80134 tap water

Is the tap water in ZIP 80134 safe to drink?

EPA testing detected 45 contaminants across the water suppliers serving ZIP 80134. 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 80134?

5 public water suppliers report EPA drinking-water monitoring for ZIP 80134. Each is listed above with its population served.

What contaminants are in ZIP 80134's water?

EPA monitoring detected Nitrate-Nitrite, Nitrate, Fluoride, Chlorite, Barium, and others across this ZIP's suppliers. The full list with levels and sources is above.