WaterVerge

Is Unadilla, GA Tap Water Safe to Drink?

Graded A-, with 12 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

4K residents served 1 water system PWSID: GA0930003
Overall Score
89.3 / 100
Violations
12 active
Last Updated
May 2026
Source
Groundwater
#38 of 378 in Georgia Top 19% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
89.3/100
waterverge.com
A- 89.3/100

Unadilla, GA — Water Quality Report

Unadilla's drinking water received a grade of A- (89.3 out of 100), indicating good water quality. The city's 1 water system serves approximately 3,806 residents using groundwater.

Lead levels were measured at 1.7 ppb (90th percentile), well within EPA limits. PFAS testing under UCMR 5 found no detectable forever chemicals.

The system has 24 violations on record, including 4 health-based violations. 12 remain unresolved.

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

What to know about Unadilla's water

Unadilla ranks #38 out of 378 cities in Georgia for water quality, placing it one of the best in the state.

Unadilla 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.

Quality Breakdown

Water quality score

See methodology →
89.3 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
42.3/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 1.7 ppb (90th percentile).
Contaminants
19/20
A
No PFAS compounds detected.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is Unadilla, GA water safe to drink?

Concerns Identified

Unadilla's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (89.3/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 3,806 residents using groundwater (wells).

12
Active Violations
1.7 ppb
Lead (90th %ile)
None
PFAS Detected
7 events
Disaster History

Recent water quality updates for Unadilla

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Unadilla's water quality assessment. Grade: A- (89.3/100).

Disaster
HURRICANE HELENE

Federal disaster declaration (FEMA DR-4830). Hurricane event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Nitrate-Nitrite.

Disaster
HURRICANE MICHAEL

Federal disaster declaration (FEMA DR-4400). Hurricane 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

Contaminants: Consumer Confidence Rule.

Key contaminant findings

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

Lead Within Limits
Detected: 1.7 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Unadilla's water system has 24 total violations on record, including 4 health-based violations. 12 remain unresolved. 1 violation was issued in the last 5 years.

MRMCLOther
Most recent violations:
Jan 2022 Nitrate-Nitrite Resolved
Jul 2015 Coliform (TCR) Resolved
Jul 2013 Consumer Confidence Rule Open
Oct 2011 Lead and Copper Rule Open
Jul 2009 Consumer Confidence Rule Open

Flood & environmental risk

Dooly County has experienced 7 federally declared disasters since 2004. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies.

HURRICANE HELENE
Hurricane FEMA DR-4830
HURRICANE MICHAEL
Hurricane FEMA DR-4400
HURRICANE MICHAEL
Hurricane FEMA DR-3406

Where does Unadilla's water come from?

Unadilla's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 3,806 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate.

What Unadilla residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Unadilla's water.

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

Unadilla'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
1.7 ppb
EPA Action Level: 15 ppb · 11% of limit
Safe Level
PFAS Testing

Forever chemicals overview

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

Violation summary

24
Total violations
4
Health-based
12
Active / unresolved
Jan 2022
Most recent violation
Compliance Record

Violations & advisories

24 Total
12 Active
4 Health-based
12 Resolved
Violations by category
Total Coliform Rule
10
Consumer Confidence Rule
7
Lead and Copper Rule
4
Nitrate Rule
1
Miscellaneous Other Rules
1
Jul 2013 Active
Consumer Confidence Rule
Other Violation 0
Oct 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2009 Active
Consumer Confidence Rule
Other Violation 0
Oct 2008 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jul 2006 Active
Consumer Confidence Rule
Other Violation 0
Jul 2005 Active
Consumer Confidence Rule
Other Violation 0
Jul 2004 Active
Consumer Confidence Rule
Other Violation 0
Jul 2002 Active
Consumer Confidence Rule
Other Violation 0
Jul 2001 Active
Consumer Confidence Rule
Other Violation 0
Oct 1999 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 1995 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Jan 2022 Resolved
Nitrate-Nitrite
Monitoring & Reporting
Monitoring & Reporting Resolved Dec 2022
Jul 2015 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2015
Jun 2007 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2007
Jan 2007 Resolved
Miscellaneous Other Rules
Other Violation Resolved Jan 2007
Nov 2002 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Nov 2002
Oct 2002 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Oct 2002
Nov 2000 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Nov 2000
Jan 1999 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jan 1999
Showing 20 of 24 violations
Environmental Risk

Drought conditions

D3 — extreme drought

Dooly 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.

14
Weeks at D2+ (current streak)
16.6%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

7
Declared disasters
Sep 2024
Most recent
Hurricane
Most common type

Dooly County has experienced 7 federally declared disasters since 2004. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Sep 2024
HURRICANE HELENE
Hurricane FEMA #4830
Oct 2018
HURRICANE MICHAEL
Hurricane FEMA #4400
Oct 2018
HURRICANE MICHAEL
Hurricane FEMA #3406
Sep 2017
HURRICANE IRMA
Hurricane FEMA #4338
Sep 2017
HURRICANE IRMA
Hurricane FEMA #3387
Sep 2005
HURRICANE KATRINA EVACUATION
Hurricane FEMA #3218

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 1.7 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 ND HI µg/L PFAS Not 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 decreased by 6.0 ppb from 2000 (7.7 ppb) to 2025 (1.7 ppb).
Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
3,806
Water Systems
1
Water Source

Where Unadilla's water comes from

Groundwater

Unadilla'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 3,806 people through 1 water system.

Infrastructure

Water systems serving Unadilla

System Name PWSID Population Source
UNADILLA GA0930003 3,806 GW
Regional Comparison

How Unadilla compares

Full Georgia rankings →

Unadilla's score of 89.3/100 is above the average of 64/100 among major Georgia cities. It outscores 10 of 10 nearby cities.

Unadilla (this city)
89.3
Atlanta
37.2
Buford
82.4
Marietta
82.2
Decatur
84.8
Alpharetta
41.4
Georgia avg
64
City Profile

About Unadilla, GA

Economic Profile
$40,250
Median Income
$65,285
Median Home Value
$678/mo
Median Rent
12.6%
Unemployment
Community
45.1
Median Age
196
People / sq mi
9.9%
College Educated
71.7%
Homeownership
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Frequently asked questions

Is Unadilla, GA tap water safe to drink?

Unadilla's water quality earned a grade of A- (89.3/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #38 out of 378 cities tested in Georgia.

What contaminants are in Unadilla's water?

Lead was measured at 1.7 ppb (90th percentile). No PFAS compounds were detected. 24 violations are on record.

How is Unadilla'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 Unadilla?

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

Where does Unadilla's water come from?

Unadilla's water is sourced from Groundwater. The city has 1 water system serving approximately 3,806 residents.

What health violations has Unadilla's water system had?

Unadilla has 4 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. 12 violations remain unresolved.

Is Unadilla's groundwater at risk of contamination?

Unadilla 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 24 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 Unadilla's water compare to other cities?

Unadilla ranks #38 out of 378 cities in Georgia (better than 90% of state cities) and #2898 out of 15744 cities nationally (82th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.