Is North Hempstead (T), NY Tap Water Safe to Drink?
Graded A+ with no contaminants above EPA limits. Here's everything we tested and how North Hempstead (T) ranks. What to do next ↓
97/100
waterverge.com North Hempstead (T), NY — Water Quality Report
North Hempstead (T)'s drinking water received a grade of A+ (97 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,900 residents using groundwater.
Lead levels were measured at 2.1 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.
No violations are on record for this water system.
What to know about North Hempstead (T)'s water
North Hempstead (T) ranks #16 out of 855 cities in New York for water quality, placing it one of the best in the state.
North Hempstead (T) 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, North Hempstead (T) may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
North Hempstead (T) has a clean compliance record with no violations on file, reflecting strong operational practices.
Water quality score
See methodology →Is North Hempstead (T), NY water safe to drink?
Based on EPA testing data, North Hempstead (T)'s tap water is generally safe to drink. The water system earned a grade of A+ (97/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 2,900 residents using groundwater (wells).
Recent water quality updates for North Hempstead (T)
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into North Hempstead (T)'s water quality assessment. Grade: A+ (97/100).
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 North Hempstead (T)'s water supply.
Well within EPA limits.
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 Alley Creek, Mill Neck Creek, Baisley Pond.
Where does North Hempstead (T)'s water come from?
North Hempstead (T)'s drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,900 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Alley Creek (river), Mill Neck Creek (river), Baisley Pond (lake).
What North Hempstead (T) residents can do
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.
North Hempstead (T)'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 ↓Violations & advisories
Drought conditions
D1 — moderate droughtNassau 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
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.
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. | 2.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how North Hempstead (T) compares by contaminant
Explore where North Hempstead (T) ranks among all New York cities for specific contaminants.
Water source & infrastructure
Where North Hempstead (T)'s water comes from
North Hempstead (T)'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 local government ownership and serves approximately 2,900 people through 1 water system.
Water bodies near North Hempstead (T)
North Hempstead (T) is located near 3 notable water bodies. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving North Hempstead (T)
| System Name | PWSID | Population | Source |
|---|---|---|---|
| SANDS POINT (V) | NY2902852 | 2,900 | GW |
How North Hempstead (T) compares
Full New York rankings →North Hempstead (T)'s score of 97/100 is above the average of 74/100 among major New York cities. It outscores 10 of 10 nearby cities.
Nearby cities
View New York rankings →About North Hempstead (T), NY
Learn more about your water
Guides and resources related to North Hempstead (T)'s water quality findings.
Explore water quality across Nassau
Frequently asked questions
Is North Hempstead (T), NY tap water safe to drink?
North Hempstead (T)'s water quality earned a grade of A+ (97/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #16 out of 855 cities tested in New York.
What contaminants are in North Hempstead (T)'s water?
Lead was measured at 2.1 ppb (90th percentile). No violations on record.
How is North Hempstead (T)'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 North Hempstead (T)?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does North Hempstead (T)'s water come from?
North Hempstead (T)'s water is sourced from Groundwater. The city has 1 water system serving approximately 2,900 residents.
Is North Hempstead (T)'s groundwater at risk of contamination?
North Hempstead (T) uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. Current testing shows the groundwater meets EPA standards. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.
How does North Hempstead (T)'s water compare to other cities?
North Hempstead (T) ranks #16 out of 855 cities in New York (better than 98% of state cities) and #98 out of 15744 cities nationally (99th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does North Hempstead (T)'s small water system affect quality?
North Hempstead (T)'s system serves approximately 2,900 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 maintained a clean compliance record.