Is Green Twp.-1908, NJ Tap Water Safe to Drink?
Graded D — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
49.1/100
waterverge.com Green Twp.-1908, NJ — Water Quality Report
Green Twp.-1908's drinking water received a grade of D (49.1 out of 100), indicating poor water quality. The city's 2 water systems serve approximately 831 residents using ground water under influence.
Lead levels were measured at 0.0 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 87 violations on record, including 5 health-based violations. 21 remain unresolved.
What to know about Green Twp.-1908's water
Green Twp.-1908 ranks #376 out of 435 cities in New Jersey for water quality, placing it among the lowest-rated in the state.
Green Twp.-1908 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, Green Twp.-1908 may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 30 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Green Twp.-1908, NJ water safe to drink?
Green Twp.-1908's drinking water has significant quality concerns based on EPA testing data. With a grade of D (49.1/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 2 water systems serve approximately 831 residents using groundwater (wells).
Recent water quality updates for Green Twp.-1908
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Green Twp.-1908's water quality assessment. Grade: D (49.1/100).
Contaminants: Surface Water Treatment Rule.
Contaminants: Surface Water Treatment Rule.
Contaminants: Gross Alpha, Excl. Radon and U.
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 Green Twp.-1908's water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Violation history
Green Twp.-1908's water system has 87 total violations on record, including 5 health-based violations. 21 remain unresolved. 30 violations were issued in the last 5 years.
Flood & environmental risk
Somerset County has experienced 10 federally declared disasters since 1992. 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 Sb Raritan R At Black Point Rd At Neshanic Sta, South Branch Raritan River At South Branch, Holland Brook At Readington, Middle Brook At Burnt Mills, Lamington River At Burnt Mills.
Where does Green Twp.-1908's water come from?
Green Twp.-1908's drinking water comes from groundwater (wells), supplied by 2 water systems serving approximately 831 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Sb Raritan R At Black Point Rd At Neshanic Sta (river), South Branch Raritan River At South Branch (river), Holland Brook At Readington (river), Middle Brook At Burnt Mills (river), Lamington River At Burnt Mills (river).
What Green Twp.-1908 residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Green Twp.-1908'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.
Green Twp.-1908'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 droughtSussex 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
Somerset County has experienced 10 federally declared disasters since 1992. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Green Twp.-1908's water supply, we recommend the following filter types.
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. | 0.0 | 15 | ppb | Inorganic | Safe |
| Copper (90th percentile) CopperInorganic A metal that enters drinking water mainly through corrosion of copper plumbing. Small amounts are essential for health, but excess levels are harmful. Health EffectsGastrointestinal distress (nausea, vomiting, diarrhea) at short-term high levels; liver and kidney damage from long-term exposure. EPA Limit1.3 mg/L action level Common SourcesCorrosion of copper household plumbing, erosion of natural deposits. | 1.60 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level trend (90th percentile)
See how Green Twp.-1908 compares by contaminant
Explore where Green Twp.-1908 ranks among all New Jersey cities for specific contaminants.
Water source & infrastructure
Where Green Twp.-1908's water comes from
Green Twp.-1908'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 831 people through 2 water systems.
Water bodies near Green Twp.-1908
Green Twp.-1908 is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Green Twp.-1908
| System Name | PWSID | Population | Source |
|---|---|---|---|
| AQUA NJ - TRANQUILITY SPRINGS | NJ1908001 | 599 | GU |
| TRANQUIL VALLEY RETREAT CENTER | NJ1908308 | 232 | GW |
How Green Twp.-1908 compares
Full New Jersey rankings →Green Twp.-1908's score of 49.1/100 is below the average of 63/100 among major New Jersey cities. 10 of 10 nearby cities score higher.
Nearby cities
View New Jersey rankings →Learn more about your water
Guides and resources related to Green Twp.-1908's water quality findings.
Explore water quality across Sussex
Frequently asked questions
Is Green Twp.-1908, NJ tap water safe to drink?
Green Twp.-1908's water quality earned a grade of D (49.1/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #376 out of 435 cities tested in New Jersey.
What contaminants are in Green Twp.-1908's water?
Lead was measured at 0.0 ppb (90th percentile). 87 violations are on record.
How is Green Twp.-1908'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 Green Twp.-1908?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Green Twp.-1908's water come from?
Green Twp.-1908's water is sourced from Ground water under influence. The city has 2 water systems serving approximately 831 residents.
What health violations has Green Twp.-1908's water system had?
Green Twp.-1908 has 5 health-based violations on record. The most recent violation was recorded in December 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 21 violations remain unresolved.
Is Green Twp.-1908's groundwater at risk of contamination?
Green Twp.-1908 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 87 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 Green Twp.-1908's water compare to other cities?
Green Twp.-1908 ranks #376 out of 435 cities in New Jersey (better than 14% of state cities) and #13282 out of 15744 cities nationally (16th percentile). The grade of D reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.