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 54730 Water Quality
Wisconsin · 2,276 people served · 15 water systems
B
GoodZIP code 54730 is in Wisconsin and is a small town from a drinking-water-service perspective, with 2,276 people served by 15 EPA-registered public water systems. It corresponds to COLFAX.
Within ZIP code 54730, the EPA Safe Drinking Water Information System (SDWIS) records 1 health-based violation during the past five years across 15 water systems serving this postal area. The grade of B 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 54730
Water Systems Serving 54730
BIG MUSKY RESORT
PWSID: WI8581273
25 served
KOUNTRY AIRE EST MHP I
PWSID: WI7290127
90 served
MAUSTON GREEN ACRES
PWSID: WI7290134
40 served
TAINTER WOODS CONDOMINIUMS
PWSID: WI6170686
85 served
CEDAR FALLS ACRES MHP
PWSID: WI6170271
95 served
BERGHS MOBILE HOME PARK
PWSID: WI6180299
60 served
GREEN ACRES MOBILE HOMES
PWSID: WI6180298
48 served
RIVER VILLA MOBILE HOME COURT
PWSID: WI6170385
60 served
RIVERVIEW PARK
PWSID: WI6060227
90 served
WHISPERING PINES MHP
PWSID: WI6470140
60 served
KOUNTRY AIRE EST MHP III
PWSID: WI7290294
210 served
KOUNTRY AIRE EST MHP II
PWSID: WI7290555
25 served
NEW RICHMOND ESTATES
PWSID: WI6560131
95 served
WALL STREET VILLAGE
PWSID: WI6560886
191 served
COLFAX WATERWORKS
PWSID: WI6170261
1,102 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
