ZIP Code 75034 Water Quality & Testing Report
Frisco, TX · Denton County County · Updated for 2026
Is Tap Water Safe to Drink in ZIP 75034 (Frisco, TX)?
Yes, tap water in ZIP code 75034 (Frisco, TX) is safe to drink under EPA Safe Drinking Water Act standards. Supplied by City of Frisco, the area earns an EPA Safety Grade of A (87/100) with 0 health violations, 2.0 ppb lead, and very hard (187 mg/L / 10.9 GPG) water.
Water Safety Grade
Excellent — Meets all EPA standards
Health Violations
0
Total Violations
4
Lead Risk
Low
Contaminants
0
About Tap Water in ZIP Code 75034
Tap water in ZIP code 75034 (Frisco, TX) is distributed by City of Frisco (EPA ID: TX0430005), serving approximately 231,910 residents. Based on EPA Safe Drinking Water Act compliance records, this system receives a water safety grade of A with a composite quality score of 87/100.
Water System
City of Frisco
EPA ID: TX0430005
Water Source
Surface Water
Population Served
231,910 residents
County
Denton County County, Texas
Lead Levels in ZIP 75034
EPA action level: 15 ppb | Public health goal: 0 ppb
Lead Level: 2.0 ppb — Very Low
Lead exposure risk in 75034 is rated Low. EPA models estimate a 20% exposure probability based on housing and infrastructure age.
From annual CCR filing
From annual CCR filing
EPA model estimate based on housing age and infrastructure
Water Hardness & Mineral Content
Grains per gallon (GPG) & Parts per million (PPM / mg/L)
Water in ZIP 75034 is Very Hard (187 mg/L / 10.9 GPG). High concentrations of dissolved limestone minerals cause severe mineral buildup, stiff laundry, dry skin, and premature water heater wear.
Grains per gallon
Parts per million CaCO3
Official EPA SDWIS Database Entry
Utility: City of Frisco · PWSID: TX0430005
Violation History
Past 5 years — EPA SDWIS data
City of Frisco has recorded 4 violations, but none are health-based (e.g., administrative or monitoring infractions). 1 violation remains unresolved in EPA tracking records.
Regulatory compliance risk for this utility is rated Moderate based on past reporting and enforcement records.
Contaminants Detected
Contaminants with health-based violations on record
No health-based contaminant violations are on record for ZIP code 75034 under the Safe Drinking Water Act.
From Consumer Confidence Report:
Chlorine (2.05 ppm)
⚖ Enforcement Actions
Water Source & Environmental Factors
Surface Water
This system draws water from lakes, rivers, or reservoirs. Surface water is treated to remove sediment, microorganisms, and chemical contaminants before reaching taps.
Lower potential
Estimated annual flood-related costs per property
% of household income spent on energy — indicator of older infrastructure
EPA Radon Zone 3 — lower radon potential, though the EPA still recommends testing all homes.
Water Quality Testing in ZIP 75034
Tap Water & Well Testing Recommendations
Residents in ZIP code 75034 served by City of Frisco can test tap water or private well systems to verify water purity. Testing detects hidden contaminants before they impact family health.
Tap Water Testing Steps
- 1.Conduct a certified lead check if your home was constructed before 1986.
- 2.Use certified lab testing kits rather than uncalibrated test strips for regulated compliance.
- 3.Sample water from both your kitchen faucet and water heater to compare line purity.
Private Well Testing Steps
- •Test for Coliform bacteria and Nitrates annually.
- •Test for heavy metals, radon, and PFAS every 3 years.
- •Send samples to a state-certified drinking water laboratory recognized by Texas Commission on Environmental Quality (TCEQ).
🛡 What Should You Do? — ZIP 75034 Recommendations
Your water quality is good
- ✓ Run cold water for 30 seconds each morning before use — especially if pipes are old
- ✓ Request your annual Consumer Confidence Report from City of Frisco
- ✓ If your home was built before 1986, consider testing your own tap for lead
- ✓ Use a pitcher filter (NSF/ANSI 42 certified) for improved taste
Recommended Taste & Safety Filter:
NSF/ANSI 53 Certified Pitcher Filter
Best for removing aesthetic chlorine, odors, and low-level heavy metals.
Frequently Asked Questions — ZIP 75034 Water Quality
Is tap water safe to drink in ZIP code 75034?+
How do I get my water tested in ZIP 75034 (Frisco, TX)?+
How hard is the tap water in 75034?+
Should I test private well water in 75034?+
What is the lead level in 75034 tap water?+
Is there an active boil water notice in 75034?+
Who provides tap water to 75034?+
What water filter should I use in 75034?+
Data Sources & Methodology
Water quality data for ZIP code 75034 is compiled from the EPA Safe Drinking Water Information System (SDWIS), EPA ECHO enforcement database, UCMR5 unregulated contaminant monitoring, and Consumer Confidence Reports filed by City of Frisco. Safety scores are composite metrics derived from violation history, lead levels, enforcement actions, and infrastructure risk indicators. Data reflects a 5-year monitoring window. Last dataset update: 2024. View EPA source data →