Nitrate In Drinking Water In Alabama
What residents of Alabama need to know about nitrate in drinking water — including how it enters water, which utilities have documented violations, and what steps to take.
Source: EPA SDWIS, Alabama Department of Environmental Management (ADEM), CDC · Last reviewed: 2025-01-01
Quick Answer
Is nitrate in drinking water a real concern in Alabama?
Yes — Alabama's poultry industry is one of the largest in the nation, and manure application across north and central Alabama agricultural counties can elevate nitrate in private wells.
Is this mostly a public-water issue, a private-well issue, or both?
Primarily private well users in agricultural counties; public water systems are monitored by ADEM, but private wells are the owner's responsibility to test.
What is the main reason residents should care?
Alabama has major poultry and cattle operations concentrated in north and central Alabama counties. Manure and fertilizer applied to agricultural land can leach nitrate into shallow groundwater used by private wells in farming communities.
Key Facts
| EPA Nitrate MCL | 10 mg/L as N |
| Alabama poultry | Major poultry production in Cullman, DeKalb, Marshall Counties — litter applied to cropland |
| Private well risk | Owner's responsibility to test — no automatic monitoring |
| Annual testing recommended | All private well users in agricultural Alabama should test at least annually |
| State oversight | Alabama Department of Environmental Management (ADEM) |
Why This Matters in Alabama
Alabama's poultry industry is one of the largest in the United States, with concentrations in Cullman, DeKalb, Marshall, and Blount Counties in north Alabama. Poultry litter applied as fertilizer can leach nitrate into shallow groundwater in these agricultural counties. Rural well users in farming communities should be aware that Alabama's private well users have no automatic testing requirement — the owner is responsible for arranging and paying for water quality testing. South Alabama's Black Belt region has cattle and row crop agriculture that also contributes nitrate loading. ADEM monitors public water systems for nitrate compliance and provides private well guidance through county health departments.
Critical — Infants Under 6 Months
Do not use tap water that exceeds 10 mg/L nitrate-nitrogen to prepare infant formula or feed infants under six months. Boiling will concentrate nitrate — do not boil. Use bottled water or a certified reverse osmosis system (NSF/ANSI 58) until the issue is resolved.
Alabama Utilities With Nitrate Violation Records
The utilities listed below have at least one nitrate violation on record in EPA's SDWIS database. Violations may be open or resolved — see individual utility pages for current status and risk level.
City of Athens,the Water Works Bd of the
Athens · 43,431 served
City of Alexander City
Alexander City · 32,556 served
Muscle Shoals Utility Board
Muscle Shoals · 22,467 served
Henry County Water Authority
Abbeville · 11,625 served
East Lauderdale County Water Authority
Rogersville · 10,296 served
Opp Utilities Board
Opp · 10,266 served
How Nitrate Gets Into Drinking Water
Agricultural fertilizer and manure runoff
Nitrogen-based fertilizers and animal waste applied to Alabama cropland can leach into groundwater or run off into surface water supplies. This is the dominant nitrate pathway in most agricultural regions.
Septic system effluent
Failing or poorly sited septic systems release nitrogen-rich wastewater near drinking water wells. Rural areas with high well density and aging septic infrastructure face elevated risk.
Concentrated animal feeding operations (CAFOs)
Large livestock facilities generate significant waste. Lagoon leaks and overapplication of manure to nearby fields can create localized nitrate hotspots in groundwater.
Natural geological deposits
In some regions, naturally occurring nitrogen compounds in soil and bedrock contribute background nitrate levels to groundwater independent of agricultural activity.
Who Should Pay Closest Attention
Private well users in north Alabama poultry counties (Cullman, DeKalb, Marshall) and south Alabama cattle and row crop counties should test for nitrate annually. Households with infants under six months face the most acute health risk if well water exceeds 10 mg/L.
Households with infants under six months
Pregnant residents
Private well owners in agricultural areas
Households near livestock operations or CAFOs
Rural residents on shallow groundwater wells
Households with older or failing septic systems nearby
How to Check Your Situation in Alabama
- 1
Identify your water utility. Use the ZIP lookup below or browse the Alabama utility directory on this site.
- 2
Read your utility's page on this site to see its current risk level and any open nitrate violations.
- 3
Review your utility's most recent Consumer Confidence Report (CCR) — mailed annually or available on the utility's website. It must disclose any MCL exceedances.
- 4
If you are on a private well, arrange testing at a Alabama Department of Environmental Management (ADEM)-certified lab. Your state health department maintains a list of certified labs. Annual testing is recommended in agricultural areas.
- 5
If you have an infant under six months, use bottled water or a certified RO system (NSF/ANSI 58) immediately as a precautionary measure — do not wait for test results if you are in a high-risk area.
- 6
If your utility issues a nitrate exceedance notice, follow their guidance and do not use tap water for infants until the issue is resolved.
Treatment Options
Carbon filters and boiling do not remove nitrate. Only the options below are effective.
NSF/ANSI Standard 58 — Reverse Osmosis
RO systems certified to NSF/ANSI 58 reduce nitrate by 85–95% at the point of use. Under-sink installation required. The most practical residential option for nitrate concerns.
Distillation
Distillation units effectively remove nitrate along with most other dissolved contaminants. Suitable for drinking and cooking water — not whole-house use.
Anion Exchange
Ion exchange systems designed for nitrate removal exchange nitrate ions for chloride on a resin bed. Effective as a point-of-entry system; requires periodic regeneration and monitoring.
Carbon filters do NOT remove nitrate
Standard pitcher filters, faucet filters, and under-sink carbon units — including those certified NSF/ANSI 42 or 53 — do not remove nitrate. Do not use these for nitrate reduction.
Frequently Asked Questions
Related Pages
Nitrate — National Overview
All U.S. utilities with nitrate records
Alabama State Overview
All utilities and water quality data
Lead in Drinking Water
A separate but common concern
Reverse Osmosis Guide
Removes 85–95% of nitrate
Well Water Guide
Private well testing and safety
All Contaminants
Complete reference library
Data Sources & Provenance
All data on this page is sourced from official U.S. government or public datasets.
Find Your Utility
State Regulator
Alabama Department of Environmental Management (ADEM) ↗