WaterVerge

Is Imperial, 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 ↓

2K residents served 1 water system PWSID: NE3102902
Overall Score
95.3 / 100
Violations
1 active
Last Updated
May 2026
Source
Groundwater
#12 of 200 in Nebraska Top 2% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A+GRADE
Water Quality Grade
95.3/100
waterverge.com
A+ 95.3/100

Imperial, NE — Water Quality Report

Imperial's drinking water received a grade of A+ (95.3 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 2,071 residents using groundwater.

Lead levels were measured at 0.8 ppb (90th percentile), well within EPA limits. UCMR 5 testing detected 1 PFAS compound in the water supply.

The system has 6 violations on record, including 3 health-based violations. 1 remains unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about Imperial's water

Imperial ranks #12 out of 200 cities in Nebraska for water quality, placing it one of the best in the state.

Imperial 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.

PFAS compounds were detected in testing, though levels remain within current EPA limits. Residents seeking extra precaution may consider an activated carbon or reverse osmosis filter.

As a small community water system, Imperial may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
95.3 out of 100 Grade A+
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
44.1/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.8 ppb (90th percentile).
Contaminants
18.2/20
A
1 PFAS compound detected.
Compliance
8/10
B
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Imperial, NE water safe to drink?

Use Caution

Imperial's tap water meets most EPA standards but has areas that warrant attention. With a grade of A+ (95.3/100), some contaminant levels or compliance issues suggest that residents may benefit from additional filtration. The city's 1 water system serves approximately 2,071 residents using groundwater (wells).

1
Active Violations
0.8 ppb
Lead (90th %ile)
1 compound
PFAS Detected
2 events
Disaster History

Recent water quality updates for Imperial

A timeline of significant water quality events, violations, and data updates.

PFAS
1 PFAS "forever chemical" compound detected

Detected at levels within current EPA limits. PFAS persist indefinitely in the environment.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Imperial's water quality assessment. Grade: A+ (95.3/100).

Violation
1 drinking water violation recorded

Contaminants: Revised Total Coliform Rule.

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Coliform (TCR).

Disaster
HURRICANE KATRINA EVACUEES

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 Imperial's water supply.

Lead Within Limits
Detected: 0.8 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

PFAS (1 compound) Elevated
Detected: Highest: lithium at 28.7000 µg/L Limit: 0.004 µg/L (EPA MCL)

Detected but within current EPA limits. PFAS do not break down in the environment and can accumulate in the body over time. An activated carbon filter can reduce exposure.

Violation history

Imperial's water system has 6 total violations on record, including 3 health-based violations. 1 remain unresolved.

MONMCLMR
Most recent violations:
Oct 2019 Revised Total Coliform Rule Resolved
Dec 2006 Coliform (TCR) Resolved
Nov 2005 Coliform (TCR) Resolved
Jan 2005 Gross Alpha, Excl. Radon and U Resolved
Oct 1998 Coliform (TCR) Resolved

Flood & environmental risk

Chase County has experienced 2 federally declared disasters since 1993. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE KATRINA EVACUEES
Hurricane FEMA DR-3245
SEVERE STORMS AND FLOODING
Flood FEMA DR-998

Where does Imperial's water come from?

Imperial's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 2,071 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Imperial residents can do

Request your utility's CCR

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.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.8 ppb
EPA Action Level: 15 ppb · 5% of limit
Safe Level
lithium
PFAS / Forever Chemical
Near MCL
28.7000 µg/L
EPA MCL: 0.004 µg/L · +20% over limit
Detected
Lithium
Inorganic
Detected
28.7 µg/L
State screening level: 60 µg/L · 48% of limit
DetectedNo federal MCLUCMR 5 Data (2023–2025)
PFAS Testing

Forever chemicals overview

National PFAS report →
30
Compounds tested
1
Detected
0
Exceed EPA MCL
Compliance Record

Violation summary

6
Total violations
3
Health-based
1
Active / unresolved
Oct 2019
Most recent violation
Compliance Record

Violations & advisories

6 Total
1 Active
3 Health-based
5 Resolved
Violations by category
Total Coliform Rule
3
Revised Total Coliform Rule
1
Radionuclides and Revised Rad Rule
1
Active
Compliance Violation
Monitoring 0
Oct 2019 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Oct 2019
Dec 2006 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2006
Nov 2005 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 2005
Jan 2005 Resolved
Gross Alpha, Excl. Radon and U
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2010
Oct 1998 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 1998
Environmental Risk

Drought conditions

D3 — extreme drought

Chase 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.

13
Weeks at D2+ (current streak)
25.5%
Months in D2+ (last 30y)
13
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

2
Declared disasters
Sep 2005
Most recent
Hurricane
Most common type

Chase County has experienced 2 federally declared disasters since 1993. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2005
HURRICANE KATRINA EVACUEES
Hurricane FEMA #3245
Jul 1993
SEVERE STORMS AND FLOODING
Flood FEMA #998

Recommended water filters

Based on contaminants detected in Imperial's water supply, we recommend the following filter types.

🧪
For PFAS
Reverse Osmosis or Activated Carbon Block
1 PFAS compound detected

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.8 15 ppb Inorganic Safe
11Cl-PF3OUdS ND HI µg/L PFAS Not Detected
4:2 FTS ND HI µg/L PFAS Not Detected
6:2 FTS ND HI µg/L PFAS Not Detected
8:2 FTS ND HI µg/L PFAS Not Detected
9Cl-PF3ONS ND HI µg/L PFAS Not Detected
ADONA ND HI µg/L PFAS Not Detected
HFPO-DA ND 0.01 µg/L PFAS Not Detected
lithium 28.700 HI µg/L PFAS Detected
NEtFOSAA ND HI µg/L PFAS Not Detected
NFDHA ND HI µg/L PFAS Not Detected
NMeFOSAA ND HI µg/L PFAS Not Detected
PFBA ND HI µg/L PFAS Not Detected
PFBS ND HI µg/L PFAS Not Detected
PFDA ND HI µg/L PFAS Not Detected
PFDoA ND HI µg/L PFAS Not Detected
PFEESA ND HI µg/L PFAS Not Detected
PFHpA ND HI µg/L PFAS Not Detected
PFHpS ND HI µg/L PFAS Not Detected
PFHxA ND HI µg/L PFAS Not Detected
PFHxS ND HI µg/L PFAS Not Detected
PFMBA ND HI µg/L PFAS Not Detected
PFMPA ND HI µg/L PFAS Not Detected
PFNA ND HI µg/L PFAS Not Detected
PFOA ND 0.004 µg/L PFAS Not Detected
PFOS ND 0.004 µg/L PFAS Not Detected
PFPeA ND HI µg/L PFAS Not Detected
PFPeS ND HI µg/L PFAS Not Detected
PFTA ND HI µg/L PFAS Not Detected
PFTrDA ND HI µg/L PFAS Not Detected
PFUnA ND HI µg/L PFAS Not Detected
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has increased by 0.8 ppb from 2004 (0.0 ppb) to 2025 (0.8 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
2,071
Water Systems
1
Water Source

Where Imperial's water comes from

Groundwater

Imperial'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 2,071 people through 1 water system.

Infrastructure

Water systems serving Imperial

System Name PWSID Population Source
IMPERIAL, CITY OF NE3102902 2,071 GW
Regional Comparison

How Imperial compares

Full Nebraska rankings →

Imperial's score of 95.3/100 is above the average of 66/100 among major Nebraska cities. It outscores 10 of 10 nearby cities.

Imperial (this city)
95.3
Omaha
56.5
Lincoln
56.5
Kearney
70
Nebraska avg
66
City Profile

About Imperial, NE

Wikipedia →

Imperial is a city in Chase County, Nebraska, United States. As of the 2020 census, Imperial had a population of 2,068. It is the county seat of Chase County.

Economic Profile
$64,625
Median Income
$176,062
Median Home Value
$1,004/mo
Median Rent
2.9%
Unemployment
Community
38.9
Median Age
282
People / sq mi
25.8%
College Educated
77.1%
Homeownership
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Frequently asked questions

Is Imperial, NE tap water safe to drink?

Imperial's water quality earned a grade of A+ (95.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #12 out of 200 cities tested in Nebraska.

What contaminants are in Imperial's water?

Lead was measured at 0.8 ppb (90th percentile). 1 PFAS compound was detected. 6 violations are on record.

How is Imperial'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 Imperial?

PFAS compounds have been detected. A filter with activated carbon can help reduce exposure.

Where does Imperial's water come from?

Imperial's water is sourced from Groundwater. The city has 1 water system serving approximately 2,071 residents.

What health violations has Imperial's water system had?

Imperial has 3 health-based violations on record. The most recent violation was recorded in October 2019. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 1 violation remains unresolved.

Is Imperial's groundwater at risk of contamination?

Imperial 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 6 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 Imperial's water compare to other cities?

Imperial ranks #12 out of 200 cities in Nebraska (better than 94% of state cities) and #329 out of 15744 cities nationally (98th percentile). The grade of A+ reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Imperial's small water system affect quality?

Imperial's system serves approximately 2,071 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 6 violations on record.