Lansdale, PA water treatment
What's in Lansdale's water, who supplies it, and how to fix what you find, with sources. Check your ZIP for your utility's EPA records.
Your water in Lansdale
Two authorities serve nearly all of ZIP 19446: North Penn Water Authority (about two-thirds of the ZIP's area) and North Wales Water Authority (about a third)[1]. Only about 1% of the land lies outside mapped service areas, so most Lansdale homes are on public water.
In EPA's UCMR 5 sampling, North Wales Water Authority reported PFOA up to 13 ppt and PFOS up to 11.1 ppt; North Penn reported PFOA up to 5.1 ppt[2]. Both are above the 4.0 ppt federal limit that takes effect in 2029[3]. Neither has a health-based violation on record, and both reported lead under 2 ppb at the 90th percentile[1].
Local issues to know
- PFAS: results differ by authority, so the first step is knowing which one you're on. See PFAS water filters in Pennsylvania.
- Hardness: neither authority's figure is in our cited set yet, so we test it in your home before sizing a softener[4].
- Lead from household plumbing: possible in older homes even when system sampling is low[5].
Utility or well? ZIP 19446: about 1% of the land area lies outside mapped public water service areas[1]. Homes in those areas are likely on private wells, which no utility tests. If that's you, start with a free in-home test.
Utility records
North Wales Water Authority
EPA water system ID PA1460048 · serves about 72,496 people · surface water (rivers, streams, or reservoirs)
- Health violations
- No health-based violations on record[1]
- Lead
- 1.6 ppb at the 90th percentile of its most recent lead sampling (EPA action level: 15 ppb)[5]
- PFAS
- EPA UCMR 5 sampling found PFOA up to 13 ppt, PFOS up to 11.1 ppt, PFPeA up to 9.3 ppt, PFHxA up to 8.1 ppt, so PFOA and PFOS were above the 4.0 ppt federal limit that takes effect in 2029.[2]
Full EPA record for this system · Ask the utility for its annual Consumer Confidence Report (CCR) for hardness and other details[4].
North Penn Water Authority
EPA water system ID PA1460034 · serves about 91,941 people · surface water bought from another supplier
- Health violations
- No health-based violations on record[1]
- Lead
- 0.5 ppb at the 90th percentile of its most recent lead sampling (EPA action level: 15 ppb)[5]
- PFAS
- EPA UCMR 5 sampling found PFOA up to 5.1 ppt, PFBS up to 4 ppt, PFPeA up to 3.4 ppt, so PFOA was above the 4.0 ppt federal limit that takes effect in 2029.[2]
Full EPA record for this system · Ask the utility for its annual Consumer Confidence Report (CCR) for hardness and other details[4].
Recommended for Lansdale homes
Comparing options? See tankless vs. tank reverse osmosis and all five WÜDR systems.
How it works
- Analysis: your free ZIP report and quiz, or a free in-home test (always, for wells).
- Recommendation: a system matched to your results.
- Price: shown only after the analysis.
- Install: buy on your own or talk it through first.
Check your water in Lansdale
Look up what your local water utility has reported to the EPA, then take a 60-second quiz about what you see, taste, and smell at home. We'll use both to recommend the right solution.
Get your water report
Enter your ZIP code to see your utility's violations, lead testing, and PFAS results from public EPA records, explained in plain English.
Data comes from U.S. EPA and Census public records. It covers public water systems, not private wells, and it isn't a test of your home's tap. If you're on a well, a free in-home test is the best way to know what's in your water.
Water self-check quiz
Question 1 of 8Step 2
Your recommended solution
Based on your water report and quiz answers.
Lansdale water questions
Who supplies Lansdale's water?
North Penn Water Authority or North Wales Water Authority, depending on your address. Your bill names it.
Is there PFAS in Lansdale water?
EPA UCMR 5 sampling found PFOA up to 13 ppt (North Wales) and 5.1 ppt (North Penn), above the 4.0 ppt federal limit that takes effect in 2029.
How do I reduce PFAS at home?
Reverse osmosis at the kitchen sink covers drinking and cooking water, where most exposure comes from. We recommend the WÜDR Tankless RO 800.
Book a free water test in Lansdale
Sources
- U.S. EPA: SDWIS Federal Reports (violations, lead and copper results). sdwis.epa.gov/ords/sfdw_pub/r/sfdw/sdwis_fed_reports_public/200
- U.S. EPA: UCMR occurrence data. www.epa.gov/dwucmr/occurrence-data-unregulated-contaminant-monitoring-rule
- U.S. EPA: Proposed PFOA and PFOS compliance extension rule. www.epa.gov/sdwa/proposed-pfoa-and-pfos-compliance-extension-rule
- U.S. EPA: Consumer Confidence Reports (CCR) information for consumers. www.epa.gov/ccr/ccr-information-consumers
- U.S. EPA: Basic information about lead in drinking water. www.epa.gov/ground-water-and-drinking-water/basic-information-about-lead-drinking-water
EPA records retrieved Oct 2026 from the EPA SDWIS and UCMR 5 public datasets. Utility records describe a water system, not the tap in your home. Records can lag and may be incomplete.