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Tap water quality report

Cody, WY

EPA monitoring detected 16 contaminants across the 7 water suppliers serving Cody. A detection doesn't automatically mean the water is unsafe — see the level at the main supplier for each below, with its EPA source and period.

7
water suppliers
18,392
people served
16
contaminants found
Wyoming rankings Lead in Wyoming PFAS in Wyoming

What was found in Cody'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.

ContaminantLevel vs EPA limitSuppliersSource
Copper
73.1 µg/L 5.6%
of the EPA limit 1300 µg/L
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 256.6 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Nitrate-Nitrite
130 µg/L 1.3%
of the EPA limit 10000 µg/L
Highest in the city: SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
1/7 SYR4
TTHM
31.05 µg/L 39%
of the EPA limit 80 µg/L
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 32.05 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Chloroform
28.2 µg/L
No EPA limit set
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 30.15 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Total Haloacetic Acids (HAA5)
25.05 µg/L 42%
of the EPA limit 60 µg/L
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 29.05 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Lead
3.5 µg/L 23%
of the EPA limit 15 µg/L
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 19.9 µg/L — SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
6/7 SYR4
Dichloroacetic Acid
13.1 µg/L
No EPA limit set
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 14.45 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Trichloroacetic Acid
12.1 µg/L
No EPA limit set
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 14.15 µg/L — NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
6/7 SYR4
Bromodichloromethane
2.43 µg/L
No EPA limit set
Main supplier: CODY, CITY OF · 10,224 people · 2019
Highest in the city: 3.02 µg/L — SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
6/7 SYR4
Gross Alpha, Excl. Radon And U
1.94 pCi/L 13%
of the EPA limit 15 pCi/L
Highest in the city: SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
1/7 SYR4
Monochloroacetic Acid
1.465 µg/L
No EPA limit set
Highest in the city: NORTHWEST RURAL WATER DISTRICT · 7,330 people · 2019
2/7 SYR4
Monobromoacetic Acid
0.6725 µg/L
No EPA limit set
Highest in the city: SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
1/7 SYR4
Combined Radium (-226 And -228)
0.3850 pCi/L 7.7%
of the EPA limit 5 pCi/L
Highest in the city: SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
1/7 SYR4
Dibromoacetic Acid
0.2900 µg/L
No EPA limit set
Main supplier: CODY, CITY OF · 10,224 people · 2019
1/7 SYR4
Combined Uranium
0.2481 µg/L 0.8%
of the EPA limit 30 µg/L
Highest in the city: SHOSHONE MUNICIPAL PIPELINE · 25 people · 2019
1/7 SYR4
Lead
0.0 mg/L 0%
of the EPA limit 0.0150 mg/L
Main supplier: CODY, CITY OF · 10,224 people · 2025
Highest in the city: 0.0020 mg/L — JUBYS MOBILE HOME PARK · 300 people · 2025
7/7 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 Cody

SupplierPopulation served
CODY, CITY OF 10,224
NORTHWEST RURAL WATER DISTRICT 7,330
GREEN ACRES MOBILE HOME PARK 375
JUBYS MOBILE HOME PARK 300
RIVERS BEND TRAILER COURT 96
COPPERLEAF WATER SYSTEM 42
SHOSHONE MUNICIPAL PIPELINE 25

Frequently asked questions about Cody tap water

Is Cody tap water safe to drink?

EPA testing detected 16 contaminants in the water serving Cody. 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 Cody?

7 public water suppliers report drinking-water monitoring for Cody, Wyoming to the EPA. Each is listed above with its population served.

What contaminants are in Cody's water?

The contaminants EPA monitoring detected in Cody include Copper, Nitrate-Nitrite, TTHM, Chloroform, Total Haloacetic Acids (HAA5). 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.