Is Andover Twp.-1902, NY Tap Water Safe to Drink?
Graded D, with 27 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓
49.3/100
waterverge.com Andover Twp.-1902, NY — Water Quality Report
Andover Twp.-1902's drinking water received a grade of D (49.3 out of 100), indicating poor water quality. The city's 1 water system serves approximately 1,250 residents using groundwater.
Lead levels were measured at 8.4 ppb (90th percentile), which is within EPA limits but above recommended levels. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
The system has 91 violations on record, including 3 health-based violations. 27 remain unresolved.
What to know about Andover Twp.-1902's water
Andover Twp.-1902 ranks #796 out of 855 cities in New York for water quality, placing it among the lowest-rated in the state.
Andover Twp.-1902 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.
While lead levels are within EPA limits, they are above the recommended 5 ppb threshold that health organizations consider ideal. A point-of-use filter adds an extra layer of protection.
As a small community water system, Andover Twp.-1902 may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
The system has seen 29 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Andover Twp.-1902, NY water safe to drink?
Andover Twp.-1902's drinking water has significant quality concerns based on EPA testing data. With a grade of D (49.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,250 residents using groundwater (wells).
Recent water quality updates for Andover Twp.-1902
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Andover Twp.-1902's water quality assessment. Grade: D (49.3/100).
Contaminants: Chlorine.
Contaminants: Chlorine, Consumer Confidence Rule.
Contaminants: Chlorine.
Federal disaster declaration (FEMA DR-4755). Flood event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-4615). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Andover Twp.-1902's water supply.
Within EPA limits but above the American Academy of Pediatrics recommended level of 1 ppb. An NSF 53-certified filter provides additional protection.
Violation history
Andover Twp.-1902's water system has 91 total violations on record, including 3 health-based violations. 27 remain unresolved. 29 violations were issued in the last 5 years.
Flood & environmental risk
Nassau County has experienced 10 federally declared disasters since 2005. 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 Mill Neck Creek, Cold Spring Brook, Carlls River, Massapequa Creek, Bellmore Creek.
Where does Andover Twp.-1902's water come from?
Andover Twp.-1902's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,250 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Mill Neck Creek (river), Cold Spring Brook (river), Carlls River (river), Massapequa Creek (river), Bellmore Creek (river).
What Andover Twp.-1902 residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Andover Twp.-1902'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.
Andover Twp.-1902'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
Nassau County has experienced 10 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.
Recommended water filters
Based on contaminants detected in Andover Twp.-1902'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. | 8.4 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Andover Twp.-1902 compares by contaminant
Explore where Andover Twp.-1902 ranks among all New York cities for specific contaminants.
Water source & infrastructure
Where Andover Twp.-1902's water comes from
Andover Twp.-1902'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 1,250 people through 1 water system.
Water bodies near Andover Twp.-1902
Andover Twp.-1902 is located near 5 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Andover Twp.-1902
| System Name | PWSID | Population | Source |
|---|---|---|---|
| LAKE LENAPE WATER CO | NJ1902003 | 1,250 | GW |
How Andover Twp.-1902 compares
Full New York rankings →Andover Twp.-1902's score of 49.3/100 is below the average of 74/100 among major New York cities. It outscores 1 of 10 nearby cities. 9 of 10 nearby cities score higher.
Nearby cities
View New York rankings →About Andover Twp.-1902, NY
Learn more about your water
Guides and resources related to Andover Twp.-1902's water quality findings.
Explore water quality across Sussex
Frequently asked questions
Is Andover Twp.-1902, NY tap water safe to drink?
Andover Twp.-1902's water quality earned a grade of D (49.3/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #796 out of 855 cities tested in New York.
What contaminants are in Andover Twp.-1902's water?
Lead was measured at 8.4 ppb (90th percentile). 91 violations are on record.
How is Andover Twp.-1902'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 Andover Twp.-1902?
While lead levels are within EPA limits, a filter adds extra protection. Based on current data, basic filtration should suffice for additional peace of mind.
Where does Andover Twp.-1902's water come from?
Andover Twp.-1902's water is sourced from Groundwater. The city has 1 water system serving approximately 1,250 residents.
What health violations has Andover Twp.-1902's water system had?
Andover Twp.-1902 has 3 health-based violations on record. The most recent violation was recorded in September 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 27 violations remain unresolved.
Is Andover Twp.-1902's groundwater at risk of contamination?
Andover Twp.-1902 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 91 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 Andover Twp.-1902's water compare to other cities?
Andover Twp.-1902 ranks #796 out of 855 cities in New York (better than 7% of state cities) and #13248 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.
Does Andover Twp.-1902's small water system affect quality?
Andover Twp.-1902's system serves approximately 1,250 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 91 violations on record.