Water Quality Report

South Mountain, PA (17261): 44 Violations Recorded for Mapped Water Systems

EPA data for Guilford Water Authority

High County Radon Potential

EPA records for the water systems mapped to 17261 in South Mountain, PA contain 44 recorded violations for inclusive record years 2021 through 2026, all mapped systems combined; 0 are marked health-based.

Data source: U.S. Environmental Protection Agency (EPA) SDWIS

Based on EPA Drinking Water FEMA Flood Data U.S. Census CDC Energy Information Admin. USGS Water Data & 9 more federal sources
Latest air quality, EPA records and weather alerts Current data temporarily unavailable
Current EPA violation data unavailable
Water records and current conditions
Current EPA violation data unavailable
Safety Score N/A
Water Quality Concerns 44 non-health-based violation records in EPA data
Lead Risk Below action level Below the reporting limit, 90th percentile, sample period ending 2025-09-30
NFIP Claim History N/A
Data confidence: High (direct measurement) Medium (sampled / sub-geography) Low (modeled / inferred) Methodology →

At a Glance

  • Water EPA records for water systems mapped to this ZIP show 44 violations (non-health) (since 2021).
  • Lead The reported 90th-percentile lead result is below the laboratory reporting limit, not a measured zero; EPA's health goal for lead is zero.
  • Radon EPA Zone 1 - highest county-level potential. This is not a home measurement; test before any threshold comparison.
Contaminant Summary
Violations on record (not health-based)
44 violations
Report data assembled: Jul 27, 2026 EPA water-system identity: source date or period is not present in ZipCheckup's accepted source record EPA violation history: more than two update cycles old Lead, copper and UCMR measurements: source date or period is not present in ZipCheckup's accepted source record Consumer Confidence Report: source date or period is not present in ZipCheckup's accepted source record
1
Water System
28,135
People Served
0
Health Violations (since 2021)
Groundwater
Water Source
Zone 1
County Radon Potential · High

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Score Breakdown

Overall Home Safety Score: Score unavailable

Required evidence is missing. Missing values remain unknown and are not imputed or renormalized.

Canonical components

EPA water compliance
12/100
Observed
PFAS MCL screen
Unknown
Evidence missing
EPA radon zone
0/100
Observed
Annual EPA AirData AQI
100/100
Observed

Required domains

Drinking water
Unknown
Indoor environment
0/100
Outdoor environment
100/100

Coverage: 3 of 4 components and 2 of 3 domains observed.

Model 4.0.0; series home-safety-v4-cross-vertical.

Safety & Health (7) HIGH

Your Water System

ZIP code 17261 in South Mountain, Pennsylvania is mapped to the water system Guilford Water Authority (EPA ID: PA7280038). This system provides water to approximately 28,135 people from groundwater sources.

Other Water Quality Reports in Pennsylvania

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Data Sources

This report uses public data from the EPA Safe Drinking Water Information System (SDWIS). View available EPA compliance records for Guilford Water Authority (PA7280038) 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.

📊 EPA Safe Drinking Water · View source →
Environmental Hazards (9) HIGH
Home & Infrastructure (4) OK
Cost & Community (5) OK

CPSC product recall notices

These national notices are not matched to this ZIP code or water system.

View all recalls →

📊 CPSC · View source →

Frequently Asked Questions

Is the tap water in 17261 safe to drink?

EPA SDWIS records 44 violations since 2021 across the water systems mapped to ZIP 17261 (primary system: Guilford Water Authority), including 0 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 17261's water come from?

The recorded water source for Guilford Water Authority, a system mapped to ZIP code 17261, is Groundwater. This system serves approximately 28,135 people.

How can I get my water tested in South Mountain?

If Guilford Water Authority 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.

What is the radon risk for 17261?

17261 is mapped to a county in EPA Radon Zone 1 (high county-level radon potential; EPA recommends testing every home), located in Franklin County. EPA radon zones range from Zone 1 (highest county-level potential) to Zone 3 (lowest). Testing your home is recommended regardless of zone.

How to cite this page

APA ZipCheckup. (2026). South Mountain, PA (17261): 44 Violations Recorded for Mapped Water Systems. https://zipcheckup.com/report/17261/
BibTeX
@misc{zipcheckup-report-17261,
  author = {{ZipCheckup}},
  title  = {{South Mountain, PA (17261): 44 Violations Recorded for Mapped Water Systems}},
  year   = {2026},
  url    = {https://zipcheckup.com/report/17261/}
}

Page version: October 2026.

Nearby ZIP Code Reports

Water quality comparison for ZIP codes near 17261

ZIP Code City, State Distance Grade Violations
17237 Mont Alto, PA 3.5 mi N/A 32
17222 Fayetteville, PA 4.7 mi D 97
17247 Quincy, PA 5.9 mi N/A 0
17353 Orrtanna, PA 6.2 mi N/A 14
17268 Waynesboro, PA 7.1 mi D 165
17214 Blue Ridge Summit, PA 7.4 mi D 48
17310 Cashtown, PA 7.6 mi N/A 0
17250 Rouzerville, PA 7.9 mi N/A 0
17320 Fairfield, PA 8.1 mi N/A 16
17343 Mc Knightstown, PA 8.6 mi N/A 0

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Coverage: 13/17 risk factors Data sources →
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