Apr 15, 2026 · 7 min read
PFAS "Forever Chemicals" in US Drinking Water: 2026 Update
PFAS contamination affects an estimated 200 million Americans. Here's what the latest EPA enforcement means for your tap water.
ZIP Code 18427 Water Quality
Pennsylvania · 1,024 people served · 8 water systems
D
PoorZIP code 18427 is in Pennsylvania and is a rural community from a drinking-water-service perspective, with 1,024 people served by 8 EPA-registered public water systems. It corresponds to HAMLIN.
Within ZIP code 18427, the EPA Safe Drinking Water Information System (SDWIS) records 9 health-based violations during the past five years across 8 water systems serving this postal area. The grade of D reflects the aggregate compliance pattern, not the current daily water quality.
Last updated: 2026-05-18 · Source: EPA SDWIS
ZIP Code Location
Loading map...
Cities in ZIP 18427
Water Systems Serving 18427
PORT FLORENCE DEVELOPMENT
PWSID: PA2640015
100 served
LOG ROAD VILLAGE
PWSID: PA2350065
68 served
HAMLIN WATER COMPANY
PWSID: PA2640044
400 served
KILLIAM TRACT
PWSID: PA2520073
39 served
PINE GROVE ESTATES
PWSID: PA2640049
263 served
RYAN HILL DEVELOPMENT
PWSID: PA2640050
75 served
WOODLYN RESIDENCES
PWSID: PA2640055
35 served
MOUNTAIN CREST DEVELOPMENT
PWSID: PA2640056
44 served
About ZIP-code water data
Postal-code level water quality data is built up from the underlying water systems — multiple ZIPs may share a single utility, and a single ZIP can span multiple utilities. For property-level information, contact the specific utility serving your address. EPA data on this page was last refreshed on 2026-05-18.
From the Blog
Photo by Bluewater Sweden on Unsplash
Mar 22, 2026 · 6 min read
How to Read Your Annual Water Quality Report (CCR)
Your water utility is legally required to send you a Consumer Confidence Report every year. Here's how to actually understand it.
Photo by Louis Hansel on Unsplash
Mar 5, 2026 · 9 min read
Lead in Tap Water: The Complete 2026 Guide
Lead enters drinking water through old pipes and fixtures. Here's how to identify your risk and what to do about it.
Photo by Eduardo Casajús Gorostiaga on Unsplash
Feb 18, 2026 · 5 min read
What Is an EPA Maximum Contaminant Level (MCL)?
MCLs are the foundation of US drinking water safety. Here's how they're set and what they mean for your tap.
Photo by Naja Bertolt Jensen on Unsplash
