Farmers Branch Water Hardness & Quality Report (2026)
Water Hardness
180+ mg/L
Very Hardestimated · not lab-verified
Source
reservoir
pH Level
7.7
neutral = 7.0
Lead
0.008 mg/L
✓ Below action level
TDS
1297.3 mg/L
Est. Daily Cost
$0.91
energy & soap waste
Source: See methodology section below · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Farmers Branch, your appliances are currently losing 45% efficiency due to mineral buildup.
| Appliance | In Farmers Branch | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 4.7 yrs | 8.5 yrs | -45% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8.3 yrs | 15 yrs | -45% |
Regional Water Comparison
How Farmers Branch compares to its nearest neighbours
| City | Hardness | PFAS (ppt) | Risk | Source |
|---|---|---|---|---|
| ▶ Farmers Branch, Texas | ≈ 180+ mg/L | 139.6 ppt | 🔴 Very Hard | reservoir |
| Carrollton, Texas | ≈ 120–179 mg/L | 230.7 ppt | 🟠 Hard | reservoir |
| Addison, Texas | ≈ 120–179 mg/L | 65.3 ppt | 🟠 Hard | reservoir |
| Coppell, Texas | ≈ 180+ mg/L | 63.5 ppt | 🔴 Very Hard | reservoir |
| University Park, Texas | ≈ 120–179 mg/L | 10 ppt | 🟠 Hard | mixed |
National Benchmark
How Farmers Branch compares to the USA average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Farmers Branch | ≈ 180+ mg/L | 🔴 High |
| USA National Avg | 151 mg/L | 🟠 Moderate |
| Scarsdale Top Rated | 0.02 mg/L | 🟢 None |
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What Makes Farmers Branch's Water Unique?
Local geology and source profile
Farmers Branch water is operated by the City of Farmers Branch Public Works Department in Dallas County, Texas, serving approximately 35,991 residents. The supply blends groundwater from the Trinity Aquifer (Woodbine and Trinity groups) with surface water purchased from the Lower Valley Water District, ultimately tracing to Trinity River reservoirs including Lake Lavon and Lake Ray Hubbard. The utility tests for 180 contaminants, performing 50,000 tests monthly to ensure compliance with TCEQ and EPA requirements.
The Trinity River watershed drains a large area of North Texas over Cretaceous-era formations, including Woodbine sandstone and Trinity Group limestones. The Trinity Aquifer — the primary groundwater source — comprises these mineral-rich limestone and dolomite strata, which dissolve calcium and magnesium as groundwater percolates through them. The karstic character of the local aquifer and watershed geology results in a distinctly mineralized, hard supply.
Very hard water causes significant scale buildup in pipes, water heaters, dishwashers, and washing machines, reducing efficiency and lifespan. Soap lathering is poor, leaving spots on glassware and film on fixtures. Regular appliance descaling, scale inhibitor installation, and annual heater flushing are recommended. A water softener is strongly advised to protect plumbing. The utility meets all federal legal limits with zero MCL violations; two contaminants exceed EPA health guidelines (MCLGs), and filters are recommended for vulnerable groups. Annual Consumer Confidence Reports are published per TCEQ and EPA requirements.
Geology & Source: Trinity Aquifer — Cretaceous Woodbine and Trinity Group limestone and dolomite; Trinity River watershed over similar formations; mineral dissolution produces hard water typical of North Texas
Other Texas Water Reports
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Frequently Asked Questions
Is Farmers Branch's water safe to drink?
Do I need a water softener in Farmers Branch?
How does Farmers Branch compare to the USA average?
Data Sources & Methodology
Water quality data for Farmers Branch is derived from geographic and geological modelling of the surrounding region. No federal monitoring station data was available for this location.
Water Hardness
Modelled estimate based on state-level USGS geological survey data for this region. No direct USGS Water Quality Portal measurement was matched to this city — the value reflects a statistical range calibrated to the state's dominant rock types and typical source water characteristics.
pH
Estimated from regional geology and source water characteristics. pH is correlated with water hardness and local bedrock — values may differ from utility-reported figures.
TDS — Total Dissolved Solids
Estimated using a derived ratio from water hardness and regional conductance profiles. TDS in natural water correlates strongly with total mineral content including hardness ions.
PFAS — Perfluoroalkyl and Polyfluoroalkyl Substances
EPA UCMR5 (5th Unregulated Contaminant Monitoring Rule, 2023–2025) — sum of PFAS compounds detected at the public water system serving this city. A value of 0 indicates the system was sampled with no detection above reporting limits.
Lead
Modelled estimate based on the EPA Lead and Copper Rule 90th-percentile tap-sample methodology. No publicly available per-city lead dataset with sufficient national coverage exists. Values are a conservative baseline derived from city population tier and infrastructure age — all estimates are maintained below the EPA action level of 0.015 mg/L.
Appliance Lifespan
Calculated from water hardness using a linear degradation model. Baseline lifespans represent soft-water performance (kettle: 8.5 yrs, washing machine: 12.0 yrs, water heater: 15.0 yrs). Hard water mineral scale progressively reduces operational life in direct proportion to hardness concentration.