WaterVerge

Is Dorchester, NE Tap Water Safe to Drink?

Graded A with no contaminants above EPA limits. Here's everything we tested and how Dorchester ranks. What to do next ↓

586 residents served 1 water system PWSID: NE3115103
Overall Score
93.7 / 100
Violations
None active
Last Updated
May 2026
Source
Groundwater
#28 of 200 in Nebraska Top 5% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
AGRADE
Water Quality Grade
93.7/100
waterverge.com
A 93.7/100

Dorchester, NE — Water Quality Report

Dorchester's drinking water received a grade of A (93.7 out of 100), indicating excellent water quality. The city's 1 water system serves approximately 586 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.

The system has 15 violations on record, including 15 health-based violations. All violations have been resolved.

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

What to know about Dorchester's water

Dorchester ranks #28 out of 200 cities in Nebraska for water quality, placing it above average in the state.

Dorchester 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, Dorchester may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
93.7 out of 100 Grade A
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
41.7/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 2.1 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
10/10
A
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Dorchester, NE water safe to drink?

Generally Safe

Based on EPA testing data, Dorchester's tap water is generally safe to drink. The water system earned a grade of A (93.7/100), meeting federal drinking water standards across key contaminant categories. The city's 1 water system serves approximately 586 residents using groundwater (wells).

1
Violations (5yr)
2.1 ppb
Lead (90th %ile)
6 events
Disaster History

Recent water quality updates for Dorchester

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Dorchester's water quality assessment. Grade: A (93.7/100).

Violation
1 drinking water violation recorded

1 health-based. Contaminants: Carbon tetrachloride.

Disaster
SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING

Federal disaster declaration (FEMA DR-4420). Flood event — may have impacted local water infrastructure.

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
SEVERE STORMS, ICE JAMS, AND FLOODING

Federal disaster declaration (FEMA DR-1902). Flood event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Dorchester's water supply.

Lead Within Limits
Detected: 2.1 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Dorchester's water system has 15 total violations on record, including 15 health-based violations. All violations have been resolved. 1 violation was issued in the last 5 years.

MCL
Most recent violations:
Jan 2022 Carbon tetrachloride Resolved
Oct 2014 Coliform (TCR) Resolved
Sep 2014 Coliform (TCR) Resolved
Jul 2014 Coliform (TCR) Resolved
Sep 2011 Coliform (TCR) Resolved

Flood & environmental risk

Saline County has experienced 6 federally declared disasters since 1967. 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 West Fork Big Blue River Near Dorchester, Nebr..

SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA DR-4420
SEVERE STORMS, ICE JAMS, AND FLOODING
Flood FEMA DR-1902
HURRICANE KATRINA EVACUEES
Hurricane FEMA DR-3245

Where does Dorchester's water come from?

Dorchester's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 586 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include West Fork Big Blue River Near Dorchester, Nebr. (river).

What Dorchester 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.

Monitor alerts during storms

Dorchester'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.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
2.1 ppb
EPA Action Level: 15 ppb · 14% of limit
Safe Level
Compliance Record

Violation summary

15
Total violations
15
Health-based
0
Active / unresolved
Jan 2022
Most recent violation
Compliance Record

Violations & advisories

15 Total
0 Active
15 Health-based
15 Resolved
Violations by category
Total Coliform Rule
12
Radionuclides and Revised Rad Rule
2
Volatile Organic Chemicals
1
Jan 2022 Resolved
Carbon tetrachloride
Max Contaminant Level
Health-Based Health Resolved Dec 2022
Oct 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 2014
Sep 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2014
Jul 2014 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2014
Sep 2011 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 2011
Jul 2010 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2010
Dec 2005 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2005
Jan 2005 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Mar 2005
Oct 2004 Resolved
Combined Uranium
Max Contaminant Level
Health-Based Health Resolved Dec 2004
Dec 2001 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Dec 2001
Nov 2001 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 2001
Nov 2000 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 2000
Sep 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 1999
Sep 1998 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 1998
Sep 1996 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Sep 1996
Industrial pollution

Top industrial polluters within 10 miles of Dorchester

Industrial polluters nearby

Reported releases to surface water by facilities near Dorchester, ranked by pounds discharged annually.

Total reported releases to surface water: 1,994,613 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
SMITHFIELD FRESH MEATS CORP-CRETE
Food · UNITED GLOBAL FOODS US HOLDINGS INC
CRETE, NE68333
Nitrate compounds (water dissociable; reportable only when in aqueous solution)1,965,9369.1 mi
NESTLE PURINA PETCARE CO
Food · NESTLE PURINA PETCARE CO
CRETE, NE68333
Nitrate compounds (water dissociable; reportable only when in aqueous solution)28,6779.4 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Environmental Risk

Drought conditions

D2 — severe drought

Saline County is currently in D2 (severe 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.

7
Weeks at D2+ (current streak)
15.1%
Months in D2+ (last 30y)
7
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

6
Declared disasters
Mar 2019
Most recent
Flood
Most common type

Saline County has experienced 6 federally declared disasters since 1967. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Mar 2019
SEVERE WINTER STORM, STRAIGHT-LINE WINDS, AND FLOODING
Flood FEMA #4420
Apr 2010
SEVERE STORMS, ICE JAMS, AND FLOODING
Flood FEMA #1902
Sep 2005
HURRICANE KATRINA EVACUEES
Hurricane FEMA #3245
Jul 1993
SEVERE STORMS AND FLOODING
Flood FEMA #998
Oct 1973
SEVERE STORMS & FLOODING
Flood FEMA #406
Jul 1967
SEVERE STORMS & FLOODING
Flood FEMA #228

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 2.1 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 1.3 ppb from 2004 (3.4 ppb) to 2023 (2.1 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
586
Water Systems
1
Water Source

Where Dorchester's water comes from

Groundwater

Dorchester'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 586 people through 1 water system.

Local Hydrology

Water bodies near Dorchester

Dorchester is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

West Fork Big Blue River Near Dorchester, Nebr.
river
Infrastructure

Water systems serving Dorchester

System Name PWSID Population Source
DORCHESTER, VILLAGE OF NE3115103 586 GW
Regional Comparison

How Dorchester compares

Full Nebraska rankings →

Dorchester's score of 93.7/100 is above the average of 66/100 among major Nebraska cities. It outscores 10 of 10 nearby cities.

Dorchester (this city)
93.7
Omaha
56.5
Lincoln
56.5
Kearney
70
Nebraska avg
66
City Profile

About Dorchester, NE

Economic Profile
$57,708
Median Income
$132,024
Median Home Value
$617/mo
Median Rent
1.7%
Unemployment
Community
41.4
Median Age
420
People / sq mi
13.9%
College Educated
81.9%
Homeownership
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Frequently asked questions

Is Dorchester, NE tap water safe to drink?

Dorchester's water quality earned a grade of A (93.7/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #28 out of 200 cities tested in Nebraska.

What contaminants are in Dorchester's water?

Lead was measured at 2.1 ppb (90th percentile). 15 violations are on record.

How is Dorchester'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 Dorchester?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does Dorchester's water come from?

Dorchester's water is sourced from Groundwater. The city has 1 water system serving approximately 586 residents.

What health violations has Dorchester's water system had?

Dorchester has 15 health-based violations on record. The most recent violation was recorded in January 2022. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. All health violations have been resolved.

Is Dorchester's groundwater at risk of contamination?

Dorchester 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 15 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 Dorchester's water compare to other cities?

Dorchester ranks #28 out of 200 cities in Nebraska (better than 86% of state cities) and #765 out of 15744 cities nationally (95th percentile). The grade of A reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Dorchester's small water system affect quality?

Dorchester's system serves approximately 586 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 15 violations on record.