Is Wallkill (T), NY Tap Water Safe to Drink?
Graded F — but Copper was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓
41.2/100
waterverge.com Wallkill (T), NY — Water Quality Report
Wallkill (T)'s drinking water received a grade of F (41.2 out of 100), indicating failing water quality. The city's 8 water systems serve approximately 19,044 residents using ground water under influence.
Lead levels were measured at 1.0 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 543 violations on record, including 23 health-based violations. 36 remain unresolved.
What to know about Wallkill (T)'s water
Wallkill (T) ranks #846 out of 855 cities in New York for water quality, placing it among the lowest-rated in the state.
Wallkill (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.
Haloacetic acid (HAA5) levels were elevated at 56.2 µg/L in UCMR 4 testing, though below the 60 µg/L EPA limit. Activated carbon filtration can help reduce these disinfection byproducts.
Hexavalent chromium (chromium-6) was detected at 0.43 µg/L in UCMR 3 testing. While below California's 10 µg/L limit and with no federal MCL set, residents sensitive to this contaminant may consider reverse osmosis filtration.
The system has seen 99 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.
Water quality score
See methodology →Is Wallkill (T), NY water safe to drink?
Wallkill (T)'s drinking water has significant quality concerns based on EPA testing data. With a grade of F (41.2/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 8 water systems serve approximately 19,044 residents using groundwater (wells).
Recent water quality updates for Wallkill (T)
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Wallkill (T)'s water quality assessment. Grade: F (41.2/100).
Contaminants: Lead and Copper Rule.
Contaminants: Consumer Confidence Rule.
Contaminants: Nitrate.
Federal disaster declaration (FEMA DR-4615). Hurricane event — may have impacted local water infrastructure.
Federal disaster declaration (FEMA DR-3572). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Wallkill (T)'s water supply.
Well within EPA limits.
Exceeds EPA action level. Copper can leach from household plumbing — flush taps for 30 seconds before drinking.
Elevated disinfection byproduct levels. These form when chlorine interacts with organic matter during water treatment.
Violation history
Wallkill (T)'s water system has 543 total violations on record, including 23 health-based violations. 36 remain unresolved. 99 violations were issued in the last 5 years.
Flood & environmental risk
Orange 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 Wallkill River, Gumaer Brook, Basher Kill.
Where does Wallkill (T)'s water come from?
Wallkill (T)'s drinking water comes from groundwater (wells), supplied by 8 water systems serving approximately 19,044 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Wallkill River (river), Gumaer Brook (river), Basher Kill (river).
What Wallkill (T) residents can do
Recommended: NSF-certified water filter. This addresses the specific contaminants found in Wallkill (T)'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.
Wallkill (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 ↓Violation summary
Violations & advisories
Drought conditions
D1 — moderate droughtOrange 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
Orange 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.
Recommended water filters
Based on contaminants detected in Wallkill (T)'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. | 1.0 | 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. | 1.90 | 1.3 | mg/L | Inorganic | Over Limit |
Lead level trend (90th percentile)
Copper level trend (90th percentile)
See how Wallkill (T) compares by contaminant
Explore where Wallkill (T) ranks among all New York cities for specific contaminants.
Water source & infrastructure
Where Wallkill (T)'s water comes from
Wallkill (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 19,044 people through 8 water systems.
Water bodies near Wallkill (T)
Wallkill (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 Wallkill (T)
| System Name | PWSID | Population | Source |
|---|---|---|---|
| WALLKILL CONSOLIDATED WD | NY3503584 | 18,450 | GU |
| VALLEY VIEW PARK | NY3501315 | 215 | GW |
| LORELEI WATER SUPPLY | NY3503585 | 184 | GW |
| VALLEY VIEW WEST | NY3513627 | 75 | GW |
| WALLKILL HEIGHTS | NY3503586 | 54 | GW |
| BIG SKY II | NY3510816 | 25 | GW |
| JZM L.L.C. | NY3510136 | 21 | GW |
| MEADOW LAKE APARTMENTS | NY3521112 | 20 | GW |
How Wallkill (T) compares
Full New York rankings →Wallkill (T)'s score of 41.2/100 is below the average of 74/100 among major New York cities. 10 of 10 nearby cities score higher.
Nearby cities
View New York rankings →About Wallkill (T), NY
Wikipedia →Middletown is the largest city in Orange County, New York, United States. It lies in New York's Hudson Valley region, near the Wallkill River and the foothills of the Shawangunk Mountains. Middletown is situated between Port Jervis and Newburgh, New York. At the 2020 United States census, the city's population was 30,345, reflecting an increase of 2,259 from the 28,086 counted in the 2010 census. The ZIP Code is 10940. Middletown falls within the Kiryas Joel–Poughkeepsie–Newburgh Metropolitan Statistical Area, which belongs to the larger New York–Newark–Bridgeport, NY–NJ–CT–PA Combined Statistical Area.
Learn more about your water
Guides and resources related to Wallkill (T)'s water quality findings.
Explore water quality across Orange
Frequently asked questions
Is Wallkill (T), NY tap water safe to drink?
Wallkill (T)'s water quality earned a grade of F (41.2/100). Significant issues have been found. A water filter is strongly recommended. The city ranks #846 out of 855 cities tested in New York.
What contaminants are in Wallkill (T)'s water?
Lead was measured at 1.0 ppb (90th percentile). 543 violations are on record.
How is Wallkill (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 Wallkill (T)?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Wallkill (T)'s water come from?
Wallkill (T)'s water is sourced from Ground water under influence. The city has 8 water systems serving approximately 19,044 residents.
What health violations has Wallkill (T)'s water system had?
Wallkill (T) has 23 health-based violations on record. The most recent violation was recorded in October 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 36 violations remain unresolved.
Is Wallkill (T)'s groundwater at risk of contamination?
Wallkill (T) 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 543 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 Wallkill (T)'s water compare to other cities?
Wallkill (T) ranks #846 out of 855 cities in New York (better than 1% of state cities) and #15006 out of 15744 cities nationally (5th percentile). The grade of F reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.