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Tap water quality report

Terrell, TX

EPA monitoring detected 20 contaminants across the 6 water suppliers serving Terrell. 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.

6
water suppliers
46,707
people served
20
contaminants found
Texas rankings Lead in Texas PFAS in Texas

What was found in Terrell'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
448.15 µg/L 34%
of the EPA limit 1300 µg/L
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 975 µg/L — POETRY WSC · 3,636 people · 2019
6/6 SYR4
Monobromoacetic Acid
4.62 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 74.45 µg/L — ABLES SPRINGS SUD · 5,655 people · 2019
6/6 SYR4
TTHM
65.5 µg/L 82%
of the EPA limit 80 µg/L
Main supplier: CITY OF TERRELL · 18,432 people · 2019
6/6 SYR4
Chloroform
37.2 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
6/6 SYR4
Total Haloacetic Acids (HAA5)
29.2 µg/L 49%
of the EPA limit 60 µg/L
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 35.755 µg/L — ROSE HILL SUD · 4,827 people · 2019
6/6 SYR4
Dichloroacetic Acid
14 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 21.065 µg/L — ABLES SPRINGS SUD · 5,655 people · 2019
6/6 SYR4
Bromodichloromethane
19.9 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
6/6 SYR4
Dibromoacetic Acid
17.715 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
6/6 SYR4
Lead
6.02 µg/L 40%
of the EPA limit 15 µg/L
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 13.8 µg/L — ABLES SPRINGS SUD · 5,655 people · 2019
6/6 SYR4
Dibromochloromethane
9.8 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
6/6 SYR4
Monochloroacetic Acid
8.75 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 9.75 µg/L — ROSE HILL SUD · 4,827 people · 2019
6/6 SYR4
Trichloroacetic Acid
7.7 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 9.35 µg/L — ABLES SPRINGS SUD · 5,655 people · 2019
6/6 SYR4
Bromoform
1.9 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2019
Highest in the city: 2.48 µg/L — COLLEGE MOUND SUD · 13,200 people · 2019
6/6 SYR4
Pfba
0.0108 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
Highest in the city: 0.0557 µg/L — COLLEGE MOUND SUD · 13,200 people · 2023
4/6 UCMR-5
PFOS
0.0104 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
2/6 UCMR-5
Pfpea
0.0085 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
2/6 UCMR-5
Pfhxa
0.0077 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
2/6 UCMR-5
PFBS
0.0058 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
2/6 UCMR-5
PFHXS
0.0041 µg/L
No EPA limit set
Main supplier: CITY OF TERRELL · 18,432 people · 2024
2/6 UCMR-5
Lead
0.0020 mg/L 14%
of the EPA limit 0.0150 mg/L
Main supplier: CITY OF TERRELL · 18,432 people · 2025
Highest in the city: 0.0021 mg/L — COLLEGE MOUND SUD · 13,200 people · 2024
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 Terrell

SupplierPopulation served
CITY OF TERRELL 18,432
COLLEGE MOUND SUD 13,200
ABLES SPRINGS SUD 5,655
ROSE HILL SUD 4,827
POETRY WSC 3,636
LAWRENCE WSC 957

Frequently asked questions about Terrell tap water

Is Terrell tap water safe to drink?

EPA testing detected 20 contaminants in the water serving Terrell. 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 Terrell?

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

What contaminants are in Terrell's water?

The contaminants EPA monitoring detected in Terrell include Copper, Monobromoacetic Acid, 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.