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Tap water quality report

Plano, TX

EPA monitoring detected 18 contaminants across the 2 water suppliers serving Plano. 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.

2
water suppliers
292,155
people served
18
contaminants found
Texas rankings Lead in Texas PFAS in Texas

What was found in Plano'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
882.015 µg/L 68%
of the EPA limit 1300 µg/L
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
TTHM
56 µg/L 70%
of the EPA limit 80 µg/L
Main supplier: CITY OF PLANO · 292,059 people · 2019
Highest in the city: 58.065 µg/L — AIR PARK ESTATES · 96 people · 2019
2/2 SYR4
Total Haloacetic Acids (HAA5)
34.49 µg/L 57%
of the EPA limit 60 µg/L
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Bromodichloromethane
24.045 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
Highest in the city: 24.615 µg/L — AIR PARK ESTATES · 96 people · 2019
2/2 SYR4
Chloroform
19.845 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Dichloroacetic Acid
19.545 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Dibromochloromethane
14.835 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Dibromoacetic Acid
13.76 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Lead
10.8215 µg/L 72%
of the EPA limit 15 µg/L
Main supplier: CITY OF PLANO · 292,059 people · 2019
Highest in the city: 12.76 µg/L — AIR PARK ESTATES · 96 people · 2017
2/2 SYR4
Trichloroacetic Acid
6.645 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
Highest in the city: 7.07 µg/L — AIR PARK ESTATES · 96 people · 2019
2/2 SYR4
Monochloroacetic Acid
6.745 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Bromoform
5.8985 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
2/2 SYR4
Monobromoacetic Acid
4.5 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2019
1/2 SYR4
Pfba
0.0073 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2025
1/2 UCMR-5
Pfhxa
0.0044 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2025
1/2 UCMR-5
Pfpea
0.0043 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2025
1/2 UCMR-5
PFBS
0.0031 µg/L
No EPA limit set
Main supplier: CITY OF PLANO · 292,059 people · 2025
1/2 UCMR-5
Lead
0.0014 mg/L 9.3%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF PLANO · 292,059 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. 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 Plano

SupplierPopulation served
CITY OF PLANO 292,059
AIR PARK ESTATES 96

Frequently asked questions about Plano tap water

Is Plano tap water safe to drink?

EPA testing detected 18 contaminants in the water serving Plano. 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 Plano?

2 public water suppliers report drinking-water monitoring for Plano, Texas to the EPA. Each is listed above with its population served.

What contaminants are in Plano's water?

The contaminants EPA monitoring detected in Plano include Copper, TTHM, Total Haloacetic Acids (HAA5), Bromodichloromethane, Chloroform. 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.