New Jersey · population 25,062
Lead pipes in South Plainfield, NJ
6,019 lead or galvanized lines to replace
Most of South Plainfield (population 25,062) gets its water from NJ American Water - Raritan. That system reported 429 lead and 5,590 galvanized-requiring-replacement service lines out of 222,321, with 76,716 more of unknown material.
2.7% of NJ American Water - Raritan's service lines are lead or galvanized requiring replacement, lower than the New Jersey average (4.5%) and about the same as the national average (3.1%).
- Lead 0.2%
- Galvanized (replace) 2.5%
- Unknown 35%
- Non-lead 63%
Latest lead test for NJ American Water - Raritan (2026): 1 ppb 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 NJ American Water - Raritan.
Water systems serving South Plainfield
| Water system | Lead | Galv. | Unknown | % lead |
|---|---|---|---|---|
| NJ American Water - RaritanMain system | 429 | 5,590 | 76,716 | 2.7% |
| Middlesex Water CompanyServes nearby areas | 3 | 2,559 | 568 | 4.1% |
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 South Plainfield
The counts above cover the whole water system. To see whether your line is lead, look up your address on NJ American Water - Raritan'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
- Plainfield6,019 lead + galv. lines
- Dunellen6,019 lead + galv. lines
- North Plainfield6,019 lead + galv. lines
- Metuchen2,562 lead + galv. lines
- Middlesex6,019 lead + galv. lines
- Watchung6,019 lead + galv. lines
- Fanwood6,019 lead + galv. lines
- Highland Park72 lead + galv. lines
Check another water system
Questions
Does South Plainfield, NJ have lead pipes?
Yes. NJ American Water - Raritan, which serves South Plainfield, reported 429 lead and 5,590 galvanized-requiring-replacement service lines, plus 76,716 of unknown material.
Who supplies water to South Plainfield?
EPA's service area maps place most of South Plainfield in NJ American Water - Raritan's service area (PWSID NJ2004002). Middlesex Water Company also serves parts of the city or nearby areas.
How do I check whether my South Plainfield home has a lead service line?
Search your address on NJ American Water - Raritan'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 South Plainfield 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 NJ American Water - Raritan whether your street is scheduled and whether it covers the private side.