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County water report

Lowndes County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Lowndes County, Mississippi.

Water grade

B

Water score

63.2

State rank

#23

of 82

Health violations

3

EPA SDWIS, 5-year lookback

Watershed impaired

Not reported

EPA ATTAINS coverage varies by state

Monitoring sites

8

9,294 recent measurements

Live streamflow

23%

TOMBIGBEE RIVER AT STENNIS LOCK AND DAM, MS

Water at a glance

Key Water Indicators for Lowndes County

EPA SDWIS

Safety Grade

B

Score: 63.2 / 100

EPA SDWIS

Active Violations

3

5-year health-based lookback

EPA ATTAINS

Watershed Health

Not reported

Coverage varies by state

USGS NWIS

Streamflow Snapshot

23% of mean

TOMBIGBEE RIVER AT STENNIS LOCK AND DAM, MS

EPA WQP

Monitoring Sites

8

9,294 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.

63.2/100

Health violations

3

Health-based violations

Violations per 100K served

4.6

Population-normalized SDWIS rate

Editorial analysis

Understanding Lowndes County’s Water

Drinking Water Quality Overview

EPA SDWIS

Lowndes County earns a B grade for drinking water quality, scoring 63.2 out of 100. Over the past five years, EPA SDWIS records 3 health-based violations — a small cluster that warrants attention.

River & Streamflow Status

USGS NWIS

USGS NWIS gauge data (as of 2026-05-14T13:15:00.000-05:00) puts TOMBIGBEE RIVER at 1.7k cfs — well below its long-term average at 23% 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. Lowndes County has limited coverage with 8 active monitoring sites with 9,294 recent measurements on record. Predominant monitoring categories include physical and nutrient. 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 Lowndes County

Water Verdict

Lowndes County receives a fair water quality assessment with a grade of B and a score of 63.2 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

Lowndes County has recorded 3 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 4.6 violations per 100,000 people served, this rate is moderate and suggests recurring water quality challenges.

Consumer Guidance

Tap water in Lowndes County scores well above average for drinking-water safety. Lowndes County's drinking-water compliance score is 63.2 out of 100. With 3 recorded health violations, the water supply is generally reliable. The violation rate for Lowndes County is 4.6 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. There are 8 active water-quality monitoring sites in Lowndes County. A pipeline streamflow snapshot from the TOMBIGBEE RIVER gauge is also available on this page.

Regional Context

Lowndes County has better water quality than the average county in Mississippi. Its water score is 11.5 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 Lowndes County's water environment

Official EPA Resources for Lowndes County

EPA How's My Waterway

Interactive watershed health data for Lowndes County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Lowndes County

Consumer Confidence Reports (MS)

Annual water quality reports from utilities in Mississippi

Past 5 years

Water Quality Monitoring

Monitoring Sites

8

Active in the past 5 years

Measurements Recorded

9.3K

9,294 total readings

Most Measured

  • Physical
  • Nutrient
  • Organics, Other

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

1,690cfs

May 14, 6:15 PM UTC

vs Long-Term Average

23%

Well below typical

Primary Streamgage

TOMBIGBEE RIVER AT STENNIS LOCK AND DAM, MS

USGS site
02441390
Drainage area
4,440 sq mi
Long-term mean
7,410 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.

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 Lowndes 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 Lowndes County, Mississippi?
Lowndes County, Mississippi has a drinking-water quality grade of B with a score of 63.2/100, based on EPA SDWIS compliance data. The county has 3 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 Lowndes County?
Lowndes County has 3 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). Violations may have been resolved — check with your local water utility for current status.
How much water-quality monitoring happens in Lowndes County?
EPA's Water Quality Portal records 9,294 measurements from 8 monitoring sites in Lowndes County over the past five years. The most frequently measured characteristic groups are Physical, Nutrient, Organics, Other. 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 Lowndes County right now?
Lowndes County's primary USGS streamgage on the TOMBIGBEE RIVER has a pipeline snapshot of 1,690 cubic feet per second — 23% of the long-term mean of 7,410.24 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 Lowndes County water compare to the Mississippi average?
Lowndes County's SDWIS water quality score of 63.2/100 is higher than the Mississippi state average of 51.7. The average water quality grade across Mississippi is D, based on data from 82 counties with available SDWIS data.
Is tap water safe to drink in Lowndes County?
Based on EPA SDWIS data, Lowndes County has a water quality grade of B (63.2/100). 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 Lowndes County have clean drinking water?
Lowndes County has 3 health-based drinking water violations according to EPA records. With a water quality score of 63.2/100 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 Lowndes County rank for water quality in Mississippi?
Lowndes County ranks #23 out of 82 counties in Mississippi by SDWIS water quality score (1 = best). With a score of 63.2/100, 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

Forrest County

Mississippi

B

63.2

Water score

Newton County

Mississippi

B

63.0

Water score

Leake County

Mississippi

B

62.6

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.

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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