Is Mansfield Twp.-2116, NJ Tap Water Safe to Drink?
Graded C+, with 13 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
68.1/100
waterverge.com Mansfield Twp.-2116, NJ — Water Quality Report
Mansfield Twp.-2116's drinking water received a grade of C+ (68.1 out of 100), indicating fair water quality. The city's 2 water systems serve approximately 505 residents using groundwater.
Lead levels were measured at 4.6 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 53 violations on record, including 0 health-based violations. 13 remain unresolved.
What to know about Mansfield Twp.-2116's water
Mansfield Twp.-2116 ranks #292 out of 435 cities in New Jersey for water quality, placing it below average in the state.
Mansfield Twp.-2116 relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.
As a small community water system, Mansfield Twp.-2116 may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 13 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Mansfield Twp.-2116, NJ water safe to drink?
Mansfield Twp.-2116's drinking water has significant quality concerns based on EPA testing data. With a grade of C+ (68.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 505 residents using groundwater (wells).
Recent water quality updates for Mansfield Twp.-2116
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Mansfield Twp.-2116's water quality assessment. Grade: C+ (68.1/100).
Contaminants: Revised Total Coliform Rule.
Contaminants: Revised Total Coliform Rule, Chlorine.
Contaminants: Revised Total Coliform Rule.
Federal disaster declaration (FEMA DR-4614). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3573). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Mansfield Twp.-2116's water supply.
Well within EPA limits.
Violation history
Mansfield Twp.-2116's water system has 53 total violations on record, including 0 health-based violations. 13 remain unresolved. 13 violations were issued in the last 5 years.
Flood & environmental risk
Warren County has experienced 9 federally declared disasters since 1971. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include South Branch Raritan River Near High Bridge, Spruce Run At Main Street At Glen Gardner, Pequest River At Pequest, Beaver Brook Near Belvidere, Delaware River At Belvidere.
Where does Mansfield Twp.-2116's water come from?
Mansfield Twp.-2116's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 505 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include South Branch Raritan River Near High Bridge (river), Spruce Run At Main Street At Glen Gardner (river), Pequest River At Pequest (river), Beaver Brook Near Belvidere (river), Delaware River At Belvidere (river).
What Mansfield Twp.-2116 residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Mansfield Twp.-2116's water.
Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Mansfield Twp.-2116's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.
Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.
Top contaminants to know
View all ↓Violation summary
Violations & advisories
Drought conditions
D1 — moderate droughtWarren County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.
Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.
Flood & disaster history
Warren County has experienced 9 federally declared disasters since 1971. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Full contaminants report
| Contaminant | Detected Level | EPA Limit | Unit | Category | Status |
|---|---|---|---|---|---|
| Lead (90th percentile) LeadHeavy Metal A toxic heavy metal that can leach into drinking water from older pipes, solder, and fixtures. No amount of lead in water is considered safe. Health EffectsBrain and nervous system damage in children, kidney damage, high blood pressure, and reproductive problems in adults. EPA Limit15 ppb action level Common SourcesCorrosion of lead pipes, lead solder, brass faucets, and household plumbing. | 4.6 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Mansfield Twp.-2116 compares by contaminant
Explore where Mansfield Twp.-2116 ranks among all New Jersey cities for specific contaminants.
Water source & infrastructure
Where Mansfield Twp.-2116's water comes from
Mansfield Twp.-2116's drinking water is drawn from underground aquifers through wells.
Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.
Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.
The system is operated by private ownership and serves approximately 505 people through 2 water systems.
Water bodies near Mansfield Twp.-2116
Mansfield Twp.-2116 is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Mansfield Twp.-2116
| System Name | PWSID | Population | Source |
|---|---|---|---|
| WARREN HAVEN REHABILITATION & NURSING CT | NJ2116004 | 430 | GW |
| HILLSIDE VILLAGE | NJ2116002 | 75 | GW |
How Mansfield Twp.-2116 compares
Full New Jersey rankings →Mansfield Twp.-2116's score of 68.1/100 is above the average of 63/100 among major New Jersey cities. It outscores 5 of 10 nearby cities.
Nearby cities
View New Jersey rankings →About Mansfield Twp.-2116, NJ
Wikipedia →Oxford is an unincorporated community and census-designated place (CDP) located within Oxford Township in Warren County, New Jersey, United States, that was created as part of the 2010 United States census. As of the 2010 Census, the CDP's population was 1,090.
Learn more about your water
Guides and resources related to Mansfield Twp.-2116's water quality findings.
Explore water quality across Warren
Frequently asked questions
Is Mansfield Twp.-2116, NJ tap water safe to drink?
Mansfield Twp.-2116's water quality earned a grade of C+ (68.1/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #292 out of 435 cities tested in New Jersey.
What contaminants are in Mansfield Twp.-2116's water?
Lead was measured at 4.6 ppb (90th percentile). 53 violations are on record.
How is Mansfield Twp.-2116's water quality grade calculated?
The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.
Do I need a water filter in Mansfield Twp.-2116?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Mansfield Twp.-2116's water come from?
Mansfield Twp.-2116's water is sourced from Groundwater. The city has 2 water systems serving approximately 505 residents.
Is Mansfield Twp.-2116's groundwater at risk of contamination?
Mansfield Twp.-2116 uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 53 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does Mansfield Twp.-2116's water compare to other cities?
Mansfield Twp.-2116 ranks #292 out of 435 cities in New Jersey (better than 33% of state cities) and #11133 out of 15744 cities nationally (29th percentile). The grade of C+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.