Is Randolph, NJ tap water safe?
Data: U.S. EPA · How we read the data · How we check it
Summary
No federal limits exceeded in EPA data for Randolph Township Public Works Dept.
2 public water systems serve parts of Randolph. The largest, Randolph Township Public Works Dept, serves 14,820 people. Your water bill names your system.
Largest system
Randolph Township Public Works Dept
14,820 people · Purchased groundwater · EPA ID NJ1432003
Buys treated water from Morris County Municipal Utilities Authority, Southeast Morris County Municipal Utilities Authority.
| PFAS | Highest average | Limit |
|---|---|---|
| PFOA Not detected | – | 4 ppt |
| PFOS Not detected | – | 4 ppt |
| PFHxS Not detected | – | 10 ppt |
| PFNA Not detected | – | 10 ppt |
| HFPO-DA (GenX) Not detected | – | 10 ppt |
ppt = parts per trillion. "Highest average" is the highest average at any of the system's entry points, the way EPA compares results with the limits.
Lead: 3.35 ppb at the 90th percentile (Dec 2023, and 9 in 10 homes sampled were at or below it) Below action level
Health-based violations since 2016: 0
Across New Jersey, 110 of 245 water systems EPA tested had PFAS above a 2024 federal limit, and 4 systems were above the lead action level in results from the last five years. New Jersey results.
Randolph homes and lead pipes
Lead service lines and lead solder were allowed until 1986, so homes from before then are the ones to check. How to check your own line.
Housing: Census American Community Survey 2020–2024 5-year estimates for Randolph township (tables B25034, B25003). Estimates for small places have a margin of error.
Other water systems serving Randolph
- Morris County Municipal Utilities AuthorityWholesale supplier (sells water to other systems) · Groundwater · New Jersey · lists this cityNot in EPA's PFAS sample
How nearby cities compare
| City | PFAS | Lead (90th pct.) |
|---|---|---|
| Parsippany-Troy Hills 8 mi Parsippany-Troy Hills Water Department | Above limit | 4.2 ppb |
| Mount Olive 9 mi New Jersey American Water – Short Hills | Above limit | 3 ppb |
| Rockaway 9 mi Rockaway Township Water Dept | Above limit | 2.57 ppb |
| Bernards 11 mi New Jersey American Water – Short Hills | Above limit | 3 ppb |
| Livingston 14 mi New Jersey American Water – Short Hills | Above limit | 3 ppb |
| Maplewood 18 mi New Jersey American Water – Short Hills | Above limit | 3 ppb |
Randolph ZIP codes (1)
- 07869
Questions
Is Randolph tap water safe to drink?
Randolph Township Public Works Dept has had no health-based violations since 2016. Utility data can't show lead from your own pipes: if your home was built before 1986, test your tap. Your utility's annual Consumer Confidence Report is the official summary.
Who supplies water in Randolph, NJ?
2 public water systems serve parts of Randolph. The largest is Randolph Township Public Works Dept (14,820 people). Your water bill names your system. The EPA ID is also on your utility's Consumer Confidence Report.
Does Randolph tap water have PFAS?
None detected above EPA's reporting limits. Randolph Township Public Works Dept had no PFAS detected in EPA's 2023–2025 testing. "Not detected" means below the reporting limit (about 2 to 20 ppt), not proven zero.
Do Randolph homes have lead pipes?
Census estimates put 56% of Randolph homes as built before 1980 (New Jersey: 63%). Lead service lines and lead solder were allowed until 1986, so older homes are more likely to have them. Randolph Township Public Works Dept's service line inventory says what your line is made of. The only way to know for your home is to check the line where it enters the house and test your tap.
Source: U.S. EPA drinking water records and PFAS testing (UCMR 5). How we read the data.