ZipCheckup grade for 78577: B.
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Pharr, TX (78577): PFAS Detected in Mapped Water Systems - 83/100
EPA data combined for 4 water systems mapped to this ZIP (largest mapped system: City of Pharr)
Health-based violation records by water system:
EPA records for the water systems mapped to 78577 in Pharr, TX contain 14 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 3 are marked health-based.
Data source: U.S. Environmental Protection Agency (EPA) SDWIS
At a Glance
- Water EPA records for water systems mapped to this ZIP show 3 health-based violations and 11 non-health-based (since 2021).
- Lead The reported 90th-percentile lead result of 0.0011 mg/L is below the EPA action level for water systems; EPA's health goal for lead is zero.
- PFAS PFAS detected in UCMR5 sampling; see the PFAS section for each compound, compared with the federal PFAS MCL where one exists.
- Radon EPA Zone 3 - county-level radon potential, not evidence of a low home result.
- Flood 252 cumulative NFIP claim records. This historical count is not a current property-risk verdict.
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A single critical condition appears in the 78577 dataset - 1 additional elevated finding accompany it at the high-priority tier in Pharr.
Score Breakdown
Overall Home Safety Score: 83/100
This is the published model score. Component and domain values are shown independently; they are not added together on this page.
Canonical components
Required domains
Coverage: 4 of 4 components and 3 of 3 domains observed.
Model 4.0.0; series home-safety-v4-cross-vertical.
Safety & Health (8) CRITICAL
Your Water System
ZIP code 78577 in Pharr, Texas is mapped to the water system City of Pharr (EPA ID: TX1080009). This system provides water to approximately 79,715 people from surface water sources.
There are 4 community water systems serving this area.
Water Systems Serving This Area
| System Name | EPA ID | Population | Source |
|---|---|---|---|
| City of Pharr | TX1080009 | 79,715 | Surface water |
| North Alamo Water Supply Corporation | TX1080029 | 171,195 | Surface water |
| City of Hidalgo Water System | TX1080021 | 14,800 | Groundwater |
| Military Hwy Water Supply Corporation Progreso | TX1080234 | 12,198 | Groundwater |
Other Water Quality Reports in Texas
- 73301 (Austin)
- 73344 (Austin)
- 73960 (Texhoma)
- 75001 (Addison) - 2 violations recorded for mapped water systems
- 75002 (Allen) - 14 violations recorded for mapped water systems
- 75006 (Carrollton) - 2 violations recorded for mapped water systems
- 75007 (Carrollton) - 1 violation recorded for mapped water systems
- 75009 (Celina) - 18 violations recorded for mapped water systems
- 75010 (Carrollton) - 1 violation recorded for mapped water systems
- 75011 (Carrollton)
- 75013 (Allen)
- 75014 (Irving)
- 75015 (Irving)
- 75016 (Irving)
- 75017 (Irving)
- 75019 (Coppell) - 5 violations recorded for mapped water systems
- 75020 (Denison) - 38 violations recorded for mapped water systems
- 75021 (Denison) - 30 violations recorded for mapped water systems
- 75022 (Flower Mound) - 18 violations recorded for mapped water systems
- 75023 (Plano)
Nearby Water Quality Reports
- 78589 (San Juan) - 3 mi - 10 violations recorded for mapped water systems
- 78505 (Mcallen) - 3 mi
- 78501 (Mcallen) - 4 mi - 1 violation recorded for mapped water systems
- 78503 (Mcallen) - 4 mi - 26 violations recorded for mapped water systems
- 78516 (Alamo) - 4 mi - 15 violations recorded for mapped water systems
- 78502 (Mcallen) - 6 mi
- 78504 (Mcallen) - 6 mi - 1 violation recorded for mapped water systems
- 78557 (Hidalgo) - 7 mi - 25 violations recorded for mapped water systems
- 78539 (Edinburg) - 7 mi - 12 violations recorded for mapped water systems
- 78537 (Donna) - 8 mi - 30 violations recorded for mapped water systems
Data Sources
This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for City of Pharr (TX1080009) on EPA.gov.
4 of the top compounds applied across the surrounding county in USGS pesticide-use estimates appear on EPA drinking-water monitoring lists. See the agricultural pesticide-use section.
Compliance History
PFAS Contamination Detected
PFAS ("forever chemicals") have been reported in samples from water systems associated with ZIP code 78577.
Detected compounds: PFBA, PFPeA, PFHxA, PFHxS, PFBS.
Highest measured level: 0.0122 µg/L
Reverse osmosis (RO) and activated carbon block filters can reduce PFAS at the tap. Certifications list the compounds covered: an NSF/ANSI 53 or 58 claim for PFOA/PFOS does not cover every PFAS, so check that the product lists the compounds detected here.
Health Risks from Detected Contaminants
Total Trihalomethanes (TTHM)
High RiskEPA reference value: 0.08 mg/L · 3 violations on record
Long-term exposure is associated with increased cancer risk, including bladder cancer; possible reproductive effects
At-risk groups: pregnant women, long-term consumers of chlorinated water
Treatment options (verify a product is certified to reduce this contaminant): granular activated carbon (GAC), carbon block filter, point-of-entry aeration · Find a filter →
Environmental Hazards (11) HIGH
Home & Infrastructure (7) MODERATE
Area data suggest possible HVAC concerns - talk to a local expert.
Call (844) 439-2761Paid Partner This is a free service. You will be connected with an independent service provider. We may receive compensation.
Cost & Community (9) HIGH
CPSC product recall notices
These national notices are not matched to this ZIP code or water system.
Protect Your Home in Pharr
Based on local data for ZIP 78577, these services may benefit homeowners in your area.
Based on local data for your area. Use the tools below to explore your options.
Home & Flood Insurance
The ZIP code for this report in Pharr has 252 FEMA flood claims on record. Standard homeowner policies don't cover flood damage - make sure you're protected.
Typical cost: Flood insurance: premiums vary by property and flood zone; request a quote
Check Your Flood Zone (Free)FEMA flood map lookup - see if your property is in a flood zone
Free tip: Check your FEMA flood zone at msc.fema.gov (free lookup)
Roofing Inspection & Repair
Active weather alerts in Texas increase the risk of roof damage from hail and high winds. A professional inspection can identify vulnerabilities.
Typical cost: Roof inspection: typically $75–$300; repairs $300–$1,500
Estimate Your Home Insurance NeedsService recommendations are based on public data for this ZIP code (FEMA, Census ACS, NWS). Actual needs vary by property. By calling, your information will be shared with an independent service provider. ZipCheckup may receive compensation. Cost estimates are approximate and vary by property, condition, and contractor.
Frequently Asked Questions
Is the tap water in 78577 safe to drink?
EPA SDWIS records 14 violations since 2021 across the water systems mapped to ZIP 78577 (primary system: City of Pharr), including 3 health-based. The violation table above shows which system each record belongs to. ZipCheckup last updated this page in July 2026. The federal source release date is unavailable, so that month is not presented as source currency.
Where does 78577's water come from?
The recorded water source for City of Pharr, a system mapped to ZIP code 78577, is Surface water. This system serves approximately 79,715 people.
How does Pharr water compare to the national average?
Pharr's Home Safety Score ranks better than 67% of U.S. ZIP codes, and lower than 57% of ZIP codes within Texas.
How can I get my water tested in Pharr?
If City of Pharr supplies your home, contact it for its Consumer Confidence Report; otherwise contact the water utility that serves your address, or hire a certified lab for independent home water testing. The EPA recommends annual testing if you use a private well.
Is lead a concern in 78577 tap water?
The Lead and Copper Rule record selected for 78577 reports a 90th-percentile lead result of 0.00109 mg/L for a water system mapped to this ZIP (record date 2024-12-31). The EPA action level is 0.015 mg/L. This result is below the EPA action level; it does not show the lead level in each home.
What is the radon risk for 78577?
78577 is mapped to a county in EPA Radon Zone 3 (low county-level radon potential; EPA recommends testing every home), located in Hidalgo County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.
Are there PFAS (forever chemicals) in 78577's water?
Yes, PFAS have been detected in samples from water systems mapped to 78577. Reverse osmosis and activated carbon filters certified to NSF/ANSI 53 or 58 specifically for PFOA/PFOS reduction can reduce PFAS.
What does the NFIP claim history show for ZIP 78577?
FEMA records contain 252 flood insurance claims filed in ZIP code 78577; the recorded rated-zone value (the most frequent one if there are several claims) is B, which is claims evidence and may differ from the current FEMA map zone for a property. This is a substantial claim history, but claim count is not a count of distinct events or properties. Review FEMA's map for the specific property.
How to cite this page
ZipCheckup. (2026). Pharr, TX (78577): PFAS Detected in Mapped Water Systems - 83/100. https://zipcheckup.com/report/78577/
@misc{zipcheckup-report-78577,
author = {{ZipCheckup}},
title = {{Pharr, TX (78577): PFAS Detected in Mapped Water Systems - 83/100}},
year = {2026},
url = {https://zipcheckup.com/report/78577/}
}
Page version: October 2026.
Nearby ZIP Code Reports
Water quality comparison for ZIP codes near 78577
| ZIP Code | City, State | Distance | Grade | Violations |
|---|---|---|---|---|
| 78589 | San Juan, TX | 2.8 mi | B | 10 |
| 78505 | Mcallen, TX | 3.2 mi | N/A | 0 |
| 78501 | Mcallen, TX | 4.0 mi | A | 1 |
| 78503 | Mcallen, TX | 4.0 mi | B | 26 |
| 78516 | Alamo, TX | 4.5 mi | B | 15 |
| 78502 | Mcallen, TX | 5.5 mi | N/A | 0 |
| 78504 | Mcallen, TX | 6.1 mi | B | 1 |
| 78557 | Hidalgo, TX | 6.6 mi | B | 25 |
| 78539 | Edinburg, TX | 7.1 mi | B | 12 |
| 78537 | Donna, TX | 8.3 mi | C | 30 |
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Overall safety breakdown
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