Pennsylvania · population 3,555
Lead pipes in Coplay, PA
1,510 lead or galvanized lines to replace
Most of Coplay (population 3,555) gets its water from Northampton Boro Muni Auth. That system reported 0 lead and 1,510 galvanized-requiring-replacement service lines out of 15,335, with 9,543 more of unknown material.
9.8% of Northampton Boro Muni Auth's service lines are lead or galvanized requiring replacement, higher than the Pennsylvania average (2.9%) and higher than the national average (3.1%).
- Lead 0%
- Galvanized (replace) 9.8%
- Unknown 62%
- Non-lead 28%
Latest lead test for Northampton Boro Muni Auth (Jun 2025–Sep 2025): not detected at the 90th percentile, against a 15 ppb federal action level. Full test history.
Compliance record: EPA lists no Lead and Copper Rule violations since 2015 for Northampton Boro Muni Auth.
Water systems serving Coplay
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| Northampton Boro Muni AuthMain system | 0 | 1,510 | 9,543 | 9.8% |
| Whitehall TWP AuthorityServes nearby areas | 0 | 0 | 0 | 0% |
Matched from EPA water system service area boundaries and the cities each system reports serving. Edges of the city may be served by a neighboring system; your water bill names your utility.
Check your address in Coplay
The counts above cover the whole water system. To see whether your line is lead, look up your address on Northampton Boro Muni Auth's official inventory. Utilities had to make these public by October 16, 2024.
No map yet? Do the 2-minute scratch and magnet test.
Protect your drinking water
If your line is lead, galvanized or unknown, use a filter certified to NSF/ANSI 53 for lead for drinking, cooking and baby formula, and use only cold water.
Choosing a lead-certified filter · Testing your water · Replacement cost
Nearby cities
- North Catasauqua1,510 lead + galv. lines
- Northampton1,510 lead + galv. lines
- Catasauqua29 lead + galv. lines
- Allentown10,391 lead + galv. lines
- Bath14 lead + galv. lines
- Fountain Hill777 lead + galv. lines
- Bethlehem777 lead + galv. lines
- Walnutport5 lead + galv. lines
Check another water system
Questions
Does Coplay, PA have lead pipes?
Yes. Northampton Boro Muni Auth, which serves Coplay, reported 0 lead and 1,510 galvanized-requiring-replacement service lines, plus 9,543 of unknown material.
Who supplies water to Coplay?
EPA's service area maps place most of Coplay in Northampton Boro Muni Auth's service area (PWSID PA3480057). Whitehall TWP Authority also serves parts of the city or nearby areas.
How do I check whether my Coplay home has a lead service line?
Search your address on Northampton Boro Muni Auth's service line inventory map. You can also scratch the pipe where water enters your home: lead is soft, dull gray, scratches to shiny silver and doesn't attract a magnet.
When will lead pipes in Coplay be replaced?
EPA's Lead and Copper Rule Improvements require most systems to replace lead and galvanized-requiring-replacement lines by December 31, 2037. Ask Northampton Boro Muni Auth whether your street is scheduled and whether it covers the private side.