Is Thonotosassa, NJ Tap Water Safe to Drink?
Graded B, with 26 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
76.2/100
waterverge.com Thonotosassa, NJ — Water Quality Report
Thonotosassa's drinking water received a grade of B (76.2 out of 100), indicating good water quality. The city's 9 water systems serve approximately 778 residents using groundwater.
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 258 violations on record, including 8 health-based violations. 26 remain unresolved.
What to know about Thonotosassa's water
Thonotosassa ranks #185 out of 435 cities in New Jersey for water quality, placing it mid-range in the state.
Thonotosassa 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, Thonotosassa may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Thonotosassa, NJ water safe to drink?
Thonotosassa's drinking water has significant quality concerns based on EPA testing data. With a grade of B (76.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 9 water systems serve approximately 778 residents using groundwater (wells).
Recent water quality updates for Thonotosassa
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Thonotosassa's water quality assessment. Grade: B (76.2/100).
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.
Contaminants: E. COLI, Revised Total Coliform Rule.
Contaminants: Total Haloacetic Acids (HAA5), TTHM.
Contaminants: Revised Total Coliform Rule, E. COLI.
Key contaminant findings
Based on the most recent EPA sampling data for Thonotosassa's water supply.
Well within EPA limits.
Violation history
Thonotosassa's water system has 258 total violations on record, including 8 health-based violations. 26 remain unresolved. 2 violations were issued in the last 5 years.
Flood & environmental risk
Bergen County has experienced 10 federally declared disasters since 1999. 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 Bronx River, Hudson River, Lake Tappan At Old Tappan, Hackensack River At Rivervale, Pascack Brook At Park Ridge.
Where does Thonotosassa's water come from?
Thonotosassa's drinking water comes from groundwater (wells), supplied by 9 water systems serving approximately 778 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Bronx River (river), Hudson River (river), Lake Tappan At Old Tappan (lake), Hackensack River At Rivervale (river), Pascack Brook At Park Ridge (river).
What Thonotosassa residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Thonotosassa'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.
Thonotosassa'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
Flood & disaster history
Bergen County has experienced 10 federally declared disasters since 1999. 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. | 0.0 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Thonotosassa compares by contaminant
Explore where Thonotosassa ranks among all New Jersey cities for specific contaminants.
Water source & infrastructure
Where Thonotosassa's water comes from
Thonotosassa'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 778 people through 9 water systems.
Water bodies near Thonotosassa
Thonotosassa is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Thonotosassa
| System Name | PWSID | Population | Source |
|---|---|---|---|
| HAPPY TRAVELER'S RVP | FL6290728 | 300 | GW |
| TRIPLE T TAMPA MHP | FL6290474 | 126 | GW |
| DALIA MHP | FL6295507 | 75 | GW |
| PARKVIEW MHP | FL6290047 | 60 | GW |
| CITRUS KNOLL MHP | FL6290309 | 52 | GW |
| NATURE'S TRAIL MHP | FL6295577 | 50 | GW |
| SHADY GROVE MHP | FL6291610 | 45 | GW |
| GUTHRIES SUNSHINE PARK | FL6291529 | 40 | GW |
| MAGNOLIA TP | FL6290740 | 30 | GW |
How Thonotosassa compares
Full New Jersey rankings →Thonotosassa's score of 76.2/100 is above the average of 63/100 among major New Jersey cities. It outscores 10 of 10 nearby cities.
Nearby cities
View New Jersey rankings →About Thonotosassa, NJ
Wikipedia →Englewood is a city in Bergen County, in the U.S. state of New Jersey. It is part of the New York metropolitan area. Englewood was incorporated as a city by an act of the New Jersey Legislature on March 17, 1899, from portions of Ridgefield Township and the remaining portions of Englewood Township. As of the 2020 United States census, the city's population was 29,308, its highest decennial count ever and an increase of 2,161 (+8.0%) from the 2010 census count of 27,147, which in turn reflected an increase of 944 (+3.6%) from the 26,203 counted in the 2000 census.
Learn more about your water
Guides and resources related to Thonotosassa's water quality findings.
Explore water quality across Hillsborough
Frequently asked questions
Is Thonotosassa, NJ tap water safe to drink?
Thonotosassa's water quality earned a grade of B (76.2/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #185 out of 435 cities tested in New Jersey.
What contaminants are in Thonotosassa's water?
Lead was measured at 0.0 ppb (90th percentile). 258 violations are on record.
How is Thonotosassa'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 Thonotosassa?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Thonotosassa's water come from?
Thonotosassa's water is sourced from Groundwater. The city has 9 water systems serving approximately 778 residents.
What health violations has Thonotosassa's water system had?
Thonotosassa has 8 health-based violations on record. The most recent violation was recorded in January 2021. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 26 violations remain unresolved.
Is Thonotosassa's groundwater at risk of contamination?
Thonotosassa 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 258 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 Thonotosassa's water compare to other cities?
Thonotosassa ranks #185 out of 435 cities in New Jersey (better than 57% of state cities) and #9377 out of 15744 cities nationally (40th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.