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County water report

Cullman County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Cullman County, Alabama.

Water grade

A

Water score

86.0

State rank

#9

of 67

Health violations

0

EPA SDWIS, 5-year lookback

Watershed impaired

43.6%

55 water bodies assessed

Monitoring sites

29

25,169 recent measurements

Live streamflow

28%

MULBERRY FORK NEAR ARKADELPHIA, AL.

Water at a glance

Key Water Indicators for Cullman County

EPA SDWIS

Safety Grade

A

Score: 86.0 / 100

EPA SDWIS

Active Violations

0

5-year health-based lookback

EPA ATTAINS

Watershed Health

44% impaired

55 bodies assessed

USGS NWIS

Streamflow Snapshot

28% of mean

MULBERRY FORK NEAR ARKADELPHIA, AL.

EPA WQP

Monitoring Sites

29

25,169 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

A

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

86.0/100

Health violations

0

Health-based violations

Violations per 100K served

0.0

Population-normalized SDWIS rate

Editorial analysis

Understanding Cullman County’s Water

Drinking Water Quality Overview

EPA SDWIS

Cullman County earns an A grade for drinking water quality, scoring 86.0 out of 100. EPA's Safe Drinking Water Information System (SDWIS) records zero health-based violations over the past five years — a strong compliance signal for a mid-sized county.

Watershed Conditions

EPA ATTAINS

Under the Clean Water Act §303(d), EPA ATTAINS tracks whether waterways meet quality standards for drinking, recreation, and aquatic life (reporting cycle: 2022). A substantial 43.6% of assessed waterways are impaired (24 of 55 water bodies) across Cullman County's watersheds. The leading impairment causes are biochemical oxygen demand (bod) and ammonia, total. Impairment does not mean tap water is unsafe — it measures ambient waterway conditions upstream of treatment, not finished drinking water.

River & Streamflow Status

USGS NWIS

USGS NWIS gauge data (as of 2026-05-14T13:15:00.000-05:00) puts MULBERRY FORK at 246.0 cfs — well below its long-term average at 28% of mean — low-flow conditions worth noting for water-dependent ecosystems. Streamflow is a leading indicator of drought stress, sediment load, and dilution capacity: low flows concentrate pollutants and warm water temperatures, stressing aquatic life and, in surface-water-dependent systems, the source water quality for treatment plants.

Monitoring Network

EPA WQP

EPA's Water Quality Portal (WQP) aggregates monitoring data from federal, state, and tribal agencies. Cullman County has moderate coverage with 29 active monitoring sites with 25,169 recent measurements on record. Predominant monitoring categories include physical and inorganics, minor, metals. More monitoring sites generally indicate greater scientific attention to local water conditions — and provide the baseline data that regulators use to set future impairment listings.

Editorial advisory

What the data suggests for Cullman County

Water Verdict

Cullman County, Alabama receives an excellent water quality assessment with a grade of A and a score of 86.0 out of 100. The water supply meets or exceeds federal safety standards, and residents can generally drink tap water with confidence. Separately, EPA ATTAINS assessments cover 55 water bodies in the county's watershed, with 43.6% listed as impaired under the Clean Water Act — a source-water measure that is tracked independently of tap-water compliance. At the most recent USGS reading, local streamflow was below its historical mean at 27.7% — worth watching in drier seasons.

Violation Context

EPA SDWIS records for Cullman County, Alabama show zero health-based violations, indicating that the county's water systems met all federal safety standards during the reporting period. The violation rate is zero per 100,000 people served, which is the best possible outcome. This compliance record sits alongside an unusually deep monitoring archive: 25,169 water-quality results have been logged across the county in the EPA Water Quality Portal over the past five years.

Consumer Guidance

The EPA compliance record for Cullman County shows no recent health-based violations. No health-based violations have been recorded, placing Cullman County in the top tier for drinking-water safety. Cullman County's drinking-water compliance score is 86.0 out of 100. As a routine precaution, requesting your utility's annual Consumer Confidence Report each July gives you a full list of detected contaminants and their treatment levels. With 29 active water-quality monitoring sites in Cullman County, data coverage is strong. A pipeline streamflow snapshot from the MULBERRY FORK gauge is also available on this page.

Regional Context

Cullman County has better water quality than the average county in Alabama. Its water score is 17.2 points higher than the state average, indicating stronger water system performance relative to neighboring counties.

Advisory text summarizes county-level public records and is not a replacement for your utility's current Consumer Confidence Report or direct local notices.

Contaminants & Resources

Key issues flagged in Cullman County's water environment

Watershed Impairment Causes (EPA ATTAINS)

  • 1

    Biochemical Oxygen Demand (Bod)

    Impairment cause per EPA Clean Water Act §303(d) assessment

  • 2

    Ammonia, Total

    Impairment cause per EPA Clean Water Act §303(d) assessment

  • 3

    Fecal coliform bacteria

    Impairment cause per EPA Clean Water Act §303(d) assessment

Source: EPA ATTAINS · Reporting cycle 2022

Official EPA Resources for Cullman County

EPA How's My Waterway

Interactive watershed health data for Cullman County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Cullman County

Consumer Confidence Reports (AL)

Annual water quality reports from utilities in Alabama

Clean Water Act §303(d)

Watershed Health

Impaired Water Bodies

43.6%

24 of 55 assessed

Moderate concern

Top Impairment Causes

  • 1

    BIOCHEMICAL OXYGEN DEMAND (BOD)

  • 2

    AMMONIA, TOTAL

  • 3

    FECAL COLIFORM

Source: EPA ATTAINS · Reporting cycle 2022

Impairment is determined under the Clean Water Act §303(d): a water body is impaired when it fails to meet state-defined quality standards for designated uses (drinking, recreation, aquatic life). Assessment coverage varies by state; counties without assessed water bodies are not shown.

Past 5 years

Water Quality Monitoring

Monitoring Sites

29

Active in the past 5 years

Measurements Recorded

25K

25,169 total readings

Most Measured

  • Physical
  • Inorganics, Minor, Metals
  • Nutrient

Categories measured most frequently

Data from the EPA Water Quality Portal (WQP), aggregating monitoring records from federal, state, and tribal sources. Each measurement represents a single sample analyzed for a specific characteristic (e.g., E. coli, pH, dissolved oxygen, nitrogen).

Live USGS Streamgage

River & Stream Conditions

Current Discharge

246cfs

May 14, 6:15 PM UTC

vs Long-Term Average

28%

Well below typical

Primary Streamgage

MULBERRY FORK NEAR ARKADELPHIA, AL.

USGS site
02450180
Drainage area
487 sq mi
Long-term mean
888 cfs

One representative streamgage (the one with the largest drainage area in the county). Many counties have multiple gauges; this view summarizes the primary one. The long-term mean is the full-record annual average; the percent-of-typical value compares the latest reading against that average.

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Water Cost Estimate

3

3 people  ·  ~225 gal/day

Annual Total

$558

Monthly

$47

Water Bill

$558/yr

Filter Cost

$0/yr

Safety Grade for Cullman County:C — Moderate

Some violations or watershed impairment detected.

Estimates use the national average residential water rate ($0.0068/gal, EPA/AWWA 2023) and EPA WaterSense per-person consumption baseline (75 gal/person/day). Actual bills vary by utility, usage tier, and local infrastructure fees. For informational purposes only.

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Cullman County has good water quality

Learn about water restrictions and conservation in your area.

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Frequently Asked Questions

What is the water quality in Cullman County, Alabama?
Cullman County, Alabama has a drinking-water quality grade of A with a score of 86.0/100, based on EPA SDWIS compliance data. The county has 0 health-based drinking water violations over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.
Are there any water violations in Cullman County?
Cullman County has 0 health-based drinking water violations recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Zero violations is an excellent record indicating consistent compliance with federal drinking water standards.
How healthy are the watersheds in Cullman County?
EPA ATTAINS assessments under Clean Water Act §303(d) indicate 43.6% of Cullman County's 55 assessed water bodies are classified as impaired (24 impaired). The top reported causes are BIOCHEMICAL OXYGEN DEMAND (BOD), AMMONIA, TOTAL, FECAL COLIFORM. Impairment means the water body fails to meet state quality standards for at least one designated use — drinking water source, recreation, aquatic life, or fish consumption. Note: watershed impairment doesn't always translate to tap-water issues; treatment plants can remove most regulated contaminants.
How much water-quality monitoring happens in Cullman County?
EPA's Water Quality Portal records 25,169 measurements from 29 monitoring sites in Cullman County over the past five years. The most frequently measured characteristic groups are Physical, Inorganics, Minor, Metals, Nutrient. Each measurement is a single sample analyzed for one characteristic (E. coli, pH, dissolved oxygen, etc.). High monitoring density means more scientific evidence behind any reported signal — it does not by itself indicate water quality.
What's happening with rivers in Cullman County right now?
Cullman County's primary USGS streamgage on the MULBERRY FORK has a pipeline snapshot of 246 cubic feet per second — 28% of the long-term mean of 887.73 cfs. This is well below typical — often a signal of drought stress on source water. For the latest gauge feed, visit waterdata.usgs.gov.
How does Cullman County water compare to the Alabama average?
Cullman County's SDWIS water quality score of 86.0/100 is higher than the Alabama state average of 68.8. The average water quality grade across Alabama is C, based on data from 67 counties with available SDWIS data.
Is tap water safe to drink in Cullman County?
Based on EPA SDWIS data, Cullman County has a water quality grade of A (86.0/100). This indicates good to excellent water quality with strong SDWIS compliance. The grade speaks to the public water system, not the watershed — for watershed-level concerns, see the Watershed Health zone. For the most up-to-date information, contact your local water utility or review your Consumer Confidence Report (CCR).
Does Cullman County have clean drinking water?
Cullman County has 0 health-based drinking water violations according to EPA records. With a water quality score of 86.0/100 and grade A, the county's drinking water meets EPA standards with no recorded health violations. Note: drinking-water compliance speaks to the public water system, not necessarily to the watershed itself — check the Watershed Health zone for ATTAINS §303(d) data.
How does Cullman County rank for water quality in Alabama?
Cullman County ranks #9 out of 67 counties in Alabama by SDWIS water quality score (1 = best). With a score of 86.0/100, it falls in the top third of counties statewide. The ranking reflects EPA SDWIS compliance only — not watershed impairment, monitoring density, or streamflow, which are tracked separately on this page.

Counties with Similar Water Quality

Autauga County

Alabama

A

86.0

Water score

Bullock County

Alabama

A

86.0

Water score

Chambers County

Alabama

A

86.0

Water score

Data Sources

Drinking-water compliance data from the EPA Safe Drinking Water Information System (SDWIS) via the ECHO enforcement database. Scores reflect compliance history and health-based violation counts.

Watershed health and impaired-waterway data from the EPA ATTAINS Clean Water Act §303(d) assessments, state-reported and EPA-finalized.

Water-quality monitoring counts from the EPA Water Quality Portal (WQP), federated USGS, EPA, and state agency sampling records over a rolling 5-year window.

Live streamflow from the USGS National Water Information System (NWIS), continuous discharge measurements from the largest-drainage gauge in each county, compared against the full-record long-term annual mean.

Disclaimer: This data is informational only. It is not health, legal, or professional advice. For concerns about your specific water supply, contact your local water utility.

By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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