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County water report

Glynn County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Glynn County, Georgia.

Water grade

B

Water score

69.7

State rank

#97

of 159

Health violations

1

EPA SDWIS, 5-year lookback

Watershed impaired

33.8%

77 water bodies assessed

Monitoring sites

86

28,531 recent measurements

Live streamflow

No gauge

ALTAMAHA RIVER NEAR EVERETT CITY, GA

Water at a glance

Key Water Indicators for Glynn County

EPA SDWIS

Safety Grade

B

Score: 69.7 / 100

EPA SDWIS

Active Violations

1

5-year health-based lookback

EPA ATTAINS

Watershed Health

34% impaired

77 bodies assessed

USGS NWIS

Streamflow Snapshot

No gauge

ALTAMAHA RIVER NEAR EVERETT CITY, GA

EPA WQP

Monitoring Sites

86

28,531 recent readings

Source: EPA SDWIS · Safe Drinking Water Information System

Drinking Water Compliance

Compliance grade

B

Based on EPA SDWIS compliance history.

Water score

Higher scores indicate cleaner recent compliance records.

69.7/100

Health violations

1

Health-based violations

Violations per 100K served

1.1

Population-normalized SDWIS rate

Editorial analysis

Understanding Glynn County’s Water

Drinking Water Quality Overview

EPA SDWIS

Glynn County earns a B grade for drinking water quality, scoring 69.7 out of 100. Over the past five years, EPA SDWIS records 1 health-based violation — a single incident worth monitoring.

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 33.8% of assessed waterways are impaired (26 of 77 water bodies) across Glynn County's watersheds. The leading impairment causes are pcbs in fish tissue and thallium in fish tissue. Impairment does not mean tap water is unsafe — it measures ambient waterway conditions upstream of treatment, not finished drinking water.

Monitoring Network

EPA WQP

EPA's Water Quality Portal (WQP) aggregates monitoring data from federal, state, and tribal agencies. Glynn County has extensive coverage with 86 active monitoring sites with 28,531 recent measurements on record. Predominant monitoring categories include physical and organics, pesticide. 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 Glynn County

Water Verdict

Glynn County receives a fair water quality assessment with a grade of B and a score of 69.7 out of 100. The water supply meets baseline federal standards, but there may be periods of elevated contaminant levels or infrastructure concerns worth monitoring.

Violation Context

Glynn County has recorded 1 health-based violation, meaning the water system experienced at least one exceedance of federal contaminant limits or treatment requirements. At 1.1 violations per 100,000 people served, this rate is relatively low compared to many U.S. counties.

Consumer Guidance

Tap water in Glynn County scores well above average for drinking-water safety. Glynn County's drinking-water compliance score is 69.7 out of 100. With 1 recorded health violation, the water supply is generally reliable. The violation rate for Glynn County is 1.1 per 100,000 people served. Households with infants, pregnant individuals, or immunocompromised members may want to use an NSF 53-certified pitcher filter as a low-cost precaution. Pcbs in Fish Tissue is the leading impairment cause in Glynn County's watershed. With 86 active water-quality monitoring sites in Glynn County, data coverage is strong. A pipeline streamflow snapshot from the ALTAMAHA RIVER gauge is also available on this page.

Regional Context

Glynn County has better water quality than the average county in Georgia. Its water score is 5.3 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 Glynn County's water environment

Watershed Impairment Causes (EPA ATTAINS)

  • 1

    Pcbs in Fish Tissue

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

  • 2

    Thallium in Fish Tissue

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

  • 3

    Shellfishing Ban

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

Source: EPA ATTAINS · Reporting cycle 2022

Official EPA Resources for Glynn County

EPA How's My Waterway

Interactive watershed health data for Glynn County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Glynn County

Consumer Confidence Reports (GA)

Annual water quality reports from utilities in Georgia

Clean Water Act §303(d)

Watershed Health

Impaired Water Bodies

33.8%

26 of 77 assessed

Moderate concern

Top Impairment Causes

  • 1

    PCBS IN FISH TISSUE

  • 2

    THALLIUM IN FISH TISSUE

  • 3

    SHELLFISHING BAN

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

86

Active in the past 5 years

Measurements Recorded

29K

28,531 total readings

Most Measured

  • Physical
  • Organics, Pesticide
  • Microbiological

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

7,350cfs

May 14, 6:15 PM UTC

vs Long-Term Average

Long-term average not yet available.

Primary Streamgage

ALTAMAHA RIVER NEAR EVERETT CITY, GA

USGS site
02226160
Drainage area
14,000 sq mi

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.

Free tool

Estimate Your Water Costs

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 Glynn 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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Frequently Asked Questions

What is the water quality in Glynn County, Georgia?
Glynn County, Georgia has a drinking-water quality grade of B with a score of 69.7/100, based on EPA SDWIS compliance data. The county has 1 health-based drinking water violation over the past 5 years. Watershed health, monitoring records, and streamflow snapshots are reported separately on this page.
Are there any water violations in Glynn County?
Glynn County has 1 health-based drinking water violation recorded by the EPA over the past 5 years. Health-based violations indicate instances where contaminant levels exceeded EPA Maximum Contaminant Levels (MCLs). Violations may have been resolved — check with your local water utility for current status.
How healthy are the watersheds in Glynn County?
EPA ATTAINS assessments under Clean Water Act §303(d) indicate 33.8% of Glynn County's 77 assessed water bodies are classified as impaired (26 impaired). The top reported causes are PCBS IN FISH TISSUE, THALLIUM IN FISH TISSUE, SHELLFISHING BAN. 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 Glynn County?
EPA's Water Quality Portal records 28,531 measurements from 86 monitoring sites in Glynn County over the past five years. The most frequently measured characteristic groups are Physical, Organics, Pesticide, Microbiological. 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 Glynn County right now?
Glynn County's primary USGS streamgage on the ALTAMAHA RIVER has a pipeline snapshot of 7,350 cubic feet per second. Flow is within typical range for this gauge. For the latest gauge feed, visit waterdata.usgs.gov.
How does Glynn County water compare to the Georgia average?
Glynn County's SDWIS water quality score of 69.7/100 is higher than the Georgia state average of 64.4. The average water quality grade across Georgia is C, based on data from 159 counties with available SDWIS data.
Is tap water safe to drink in Glynn County?
Based on EPA SDWIS data, Glynn County has a water quality grade of B (69.7/100). 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 Glynn County have clean drinking water?
Glynn County has 1 health-based drinking water violation according to EPA records. With a water quality score of 69.7/100 and grade B, the county's drinking water has had some compliance issues but continues to be monitored. 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 Glynn County rank for water quality in Georgia?
Glynn County ranks #97 out of 159 counties in Georgia by SDWIS water quality score (1 = best). With a score of 69.7/100, it falls in the middle 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

Chatham County

Georgia

A

70.1

Water score

Richmond County

Georgia

B

69.0

Water score

Carroll County

Georgia

B

68.0

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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