Is Arnold, NE Tap Water Safe to Drink?
Graded A, with 1 unresolved violation on record. See what was cited — and what it means for your tap. What to do next ↓
92.2/100
waterverge.com Arnold, NE — Water Quality Report
Arnold's drinking water received a grade of A (92.2 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 592 residents using groundwater.
Lead levels were measured at 3.1 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 5 violations on record, including 3 health-based violations. 1 remains unresolved.
What to know about Arnold's water
Arnold ranks #44 out of 200 cities in Nebraska for water quality, placing it above average in the state.
Arnold 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, Arnold may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.
Water quality score
See methodology →Is Arnold, NE water safe to drink?
Arnold's tap water meets most EPA standards but has areas that warrant attention. With a grade of A (92.2/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 592 residents using groundwater (wells).
Recent water quality updates for Arnold
A timeline of significant water quality events, violations, and data updates.
Latest EPA compliance and testing data incorporated into Arnold's water quality assessment. Grade: A (92.2/100).
Federal disaster declaration (FEMA DR-4420). Flood event — may have impacted local water infrastructure.
1 health-based. Contaminants: Coliform (TCR).
1 health-based. Contaminants: Coliform (TCR).
1 health-based. Contaminants: Coliform (TCR).
Federal disaster declaration (FEMA DR-3245). Hurricane event — may have impacted local water infrastructure.
Key contaminant findings
Based on the most recent EPA sampling data for Arnold's water supply.
Well within EPA limits.
Violation history
Arnold's water system has 5 total violations on record, including 3 health-based violations. 1 remain unresolved.
Flood & environmental risk
Custer County has experienced 4 federally declared disasters since 1978. 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 South Loup River At Arnold, Nebr..
Where does Arnold's water come from?
Arnold's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 592 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include South Loup River At Arnold, Nebr. (river).
What Arnold 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.
Run cold water for 30 seconds before drinking, especially in the morning. Lead and copper leach from household plumbing when water sits in pipes.
Arnold'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
D3 — extreme droughtCuster County is currently in D3 (extreme 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
Custer County has experienced 4 federally declared disasters since 1978. 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. | 3.1 | 15 | ppb | Inorganic | Safe |
Lead level trend (90th percentile)
See how Arnold compares by contaminant
Explore where Arnold ranks among all Nebraska cities for specific contaminants.
Water source & infrastructure
Where Arnold's water comes from
Arnold'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 592 people through 1 water system.
Water bodies near Arnold
Arnold is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.
Water systems serving Arnold
| System Name | PWSID | Population | Source |
|---|---|---|---|
| ARNOLD, VILLAGE OF | NE3104102 | 592 | GW |
How Arnold compares
Full Nebraska rankings →Arnold's score of 92.2/100 is above the average of 66/100 among major Nebraska cities. It outscores 10 of 10 nearby cities.
Nearby cities
View Nebraska rankings →About Arnold, NE
Wikipedia →Nebraska is a state located in the Midwestern United States. According to the 2020 census, Nebraska was the 37th most populous state with 1,961,504 inhabitants and the 15th largest by land area spanning 76,824.17 square miles (198,973.7 km2) of land.
Learn more about your water
Guides and resources related to Arnold's water quality findings.
Explore water quality across Custer
Frequently asked questions
Is Arnold, NE tap water safe to drink?
Arnold's water quality earned a grade of A (92.2/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #44 out of 200 cities tested in Nebraska.
What contaminants are in Arnold's water?
Lead was measured at 3.1 ppb (90th percentile). 5 violations are on record.
How is Arnold'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 Arnold?
Based on current data, basic filtration should suffice for additional peace of mind.
Where does Arnold's water come from?
Arnold's water is sourced from Groundwater. The city has 1 water system serving approximately 592 residents.
What health violations has Arnold's water system had?
Arnold has 3 health-based violations on record. The most recent violation was recorded in November 2014. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.
Is Arnold's groundwater at risk of contamination?
Arnold 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 5 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 Arnold's water compare to other cities?
Arnold ranks #44 out of 200 cities in Nebraska (better than 78% of state cities) and #1355 out of 15744 cities nationally (91th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.
Does Arnold's small water system affect quality?
Arnold's system serves approximately 592 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 5 violations on record.