Nitrate In Drinking Water In Virginia
What residents of Virginia 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, Virginia Department of Health — Office of Drinking Water (VDH ODW), CDC · Last reviewed: 2025-01-01
Quick Answer
Is nitrate in drinking water a real concern in Virginia?
Yes — the Shenandoah Valley's intensive poultry and dairy operations, combined with private well reliance in rural Virginia, create elevated nitrate risk for some households.
Is this mostly a public-water issue, a private-well issue, or both?
Primarily private well users in the Shenandoah Valley, Eastern Shore, and southwestern Virginia agricultural areas.
What is the main reason residents should care?
Virginia's Shenandoah Valley is a major poultry and dairy production region. Manure and fertilizer application in the valley can leach nitrate into groundwater used by private wells. Virginia is also part of the Chesapeake Bay watershed, where agricultural nutrient reduction is a regulatory priority.
Key Facts
| EPA Nitrate MCL | 10 mg/L as N |
| Shenandoah Valley | Major poultry and dairy region — manure application creates nitrate leaching risk |
| Chesapeake Bay commitment | VA is required to reduce agricultural nutrient loading to the Bay |
| Eastern Shore risk | Vegetable and grain farming with documented groundwater nitrate concerns |
| State oversight | Virginia Department of Health — Office of Drinking Water (VDH ODW) |
Why This Matters in Virginia
Virginia's Shenandoah Valley — running from Roanoke to Winchester — is one of the Mid-Atlantic's most important poultry and dairy farming regions. Chicken litter and dairy manure applied as fertilizer can leach nitrate into shallow groundwater, affecting private wells in agricultural valleys. The Eastern Shore of Virginia, with its vegetable and grain farming, also has groundwater nitrate concerns. Virginia is a Chesapeake Bay jurisdictions, and the Bay Agreement requires ongoing agricultural nutrient reductions. VDH's Office of Drinking Water monitors public systems; private wells are the owner's responsibility.
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.
Virginia 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.
How Nitrate Gets Into Drinking Water
Agricultural fertilizer and manure runoff
Nitrogen-based fertilizers and animal waste applied to Virginia 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 the Shenandoah Valley (Rockingham, Augusta, Shenandoah, Page Counties) and on the Eastern Shore should test annually for nitrate. Households with infants should use current test results to guide formula preparation.
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 Virginia
- 1
Identify your water utility. Use the ZIP lookup below or browse the Virginia 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 Virginia Department of Health — Office of Drinking Water (VDH ODW)-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
Virginia 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.