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Water Quality Report · Updated October 07, 2026

CULLMAN COUNTY WATER DEPARTMENT

Serving 56,628 residents in CULLMAN, Alabama .

National rank 93th percentile
Alabama rank 94th percentile
Data confidence Medium
A
85/100
Excellent
ⓘ How did we get this rating?
Quick answer

CULLMAN COUNTY WATER DEPARTMENT delivers tap water graded A (85/100) by TapWaterSafety.org. The utility serves approximately 56,628 residents in CULLMAN, Alabama using surface water (purchased). The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline. For questions, the utility can be reached at 256-734-2900.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?
56,628
People served
1
City served
10
Contaminants detected
5
Above health guidelines

Is CULLMAN tap water safe to drink?

CULLMAN COUNTY WATER DEPARTMENT delivers tap water that earns a grade of A (85/100) from TapWaterSafety.org — an excellent rating reflecting minimal contamination and full compliance with health guidelines.

The utility serves 56,628 residents in CULLMAN, drawing from surface water (purchased).

Public testing data identifies 5 contaminants in this water above EWG's health-based guidelines, including: Haloacetic acids (HAA9), Haloacetic acids (HAA5), Total trihalomethanes (TTHMs), Chromium (hexavalent), Chlorate. For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.

EPA compliance record

Official U.S. EPA records for CULLMAN COUNTY WATER DEPARTMENT (system ID AL0000394) for the last 3 years. Checked 2026-10-07.

No EPA violations in the last 3 years.
0 of 12quarters with a violation
Nolead above EPA action level
07/16/2024last state inspection

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Top concerns in this water

Based on the most recent EPA and EWG data, these are the most significant water quality issues for CULLMAN COUNTY WATER DEPARTMENT.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 44.2 ppb, 736x above the EWG health guideline of 0.06 ppb.

Haloacetic acids (HAA5) significantly above health guideline

Moderate concern

Haloacetic acids (HAA5) detected at 33.8 ppb, 338x above the EWG health guideline of 0.1 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 34.8 ppb, 232x above the EWG health guideline of 0.15 ppb.

Contact CULLMAN COUNTY WATER DEPARTMENT

Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.

Recommended water filters for CULLMAN

Filters matched to the specific contaminants in this water supply.

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
Editorial pick · affiliate link coming soon
Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.

Score breakdown

This utility's overall score of 85/100 breaks down across five weighted components. Read the full methodology →

Health Guideline Performance
30 / 40
Legal Compliance
20 / 20
High-Risk Contaminants
18 / 20
Compliance History
10 / 10
Source Water Vulnerability
7 / 10

Contaminants detected — international standards comparison

Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). Why we show multiple standards →

Contaminant Detected EWG
US health-based
EPA
US legal
EU DWD
Europe
WHO
global
CA PHG
strictest US
Tested
sample year
Status
Haloacetic acids (HAA9)
Disinfection byproduct
44.2 ppb 0.06 — — — — — 736× over
Haloacetic acids (HAA5)
Disinfection byproduct
33.8 ppb 0.1 60.0 60 — — — 338× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
34.8 ppb 0.15 80.0 100 — — — 232× over
Chromium (hexavalent)
Heavy metal
0.0863 ppb 0.02 — — — — — 4.3× over
Chlorate
Disinfection byproduct
382.5 ppb 210.0 — — — — — 1.8× over
Manganese
Heavy metal
7.45 ppb 100.0 — 50 80 — — Below guideline
Vanadium
Other
0.1 ppb 21.0 — — — — — Below guideline
Strontium
Radiological
0.0303 ppb 1500.0 — — — — — Below guideline
Oxyfluorfen
Other
0.0133 ppb — — — — — — Below guideline
Permethrin
Other
0.02 ppb — — — — — — Below guideline

All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.

Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines (4th ed.), California OEHHA PHGs, EWG Tap Water Database.

CULLMAN COUNTY WATER DEPARTMENT service area

This water system serves 1 community in Cullman County, Alabama. Click any city for its dedicated tap water quality page.

About this water system

Public Water System ID
AL0000394
Owner type
Local government
Source water
Surface water (purchased)
Service connections
18,658
Service area
CULLMAN, Cullman County, Alabama