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Federal water data

County water report

Brevard County Water Report

Drinking-water compliance, watershed health, monitoring records, and river conditions for Brevard County, Florida.

Water grade

B

Water score

65.6

State rank

#27

of 66

Health violations

23

EPA SDWIS, 5-year lookback

Watershed impaired

37.2%

790 water bodies assessed

Monitoring sites

353

235,102 recent measurements

Live streamflow

25%

ST. JOHNS RIVER NEAR COCOA, FL

Water at a glance

Key Water Indicators for Brevard County

EPA SDWIS

Safety Grade

B

Score: 65.6 / 100

EPA SDWIS

Active Violations

23

5-year health-based lookback

EPA ATTAINS

Watershed Health

37% impaired

790 bodies assessed

USGS NWIS

Streamflow Snapshot

25% of mean

ST. JOHNS RIVER NEAR COCOA, FL

EPA WQP

Monitoring Sites

353

235,102 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.

65.6/100

Health violations

23

Health-based violations

Violations per 100K served

3.2

Population-normalized SDWIS rate

Editorial analysis

Understanding Brevard County’s Water

Drinking Water Quality Overview

EPA SDWIS

Brevard County earns a B grade for drinking water quality, scoring 65.6 out of 100. Over the past five years, EPA SDWIS records 23 health-based violations — a pattern that public water utilities are required to disclose and correct.

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 37.2% of assessed waterways are impaired (294 of 790 water bodies) across Brevard County's watersheds. The leading impairment causes are mercury in fish tissue and phosphorus, 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 2026-05-14T14:15:00.000-04:00) puts ST. JOHNS RIVER at 253.0 cfs — well below its long-term average at 25% 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. Brevard County has extensive coverage with 353 active monitoring sites with 235,102 recent measurements on record. Predominant monitoring categories include inorganics, minor, metals and physical. 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 Brevard County

Water Verdict

Brevard County receives a fair water quality assessment with a grade of B and a score of 65.6 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

Brevard County has recorded 23 health-based violations, indicating multiple instances where federal contaminant limits or treatment requirements were not met. At 3.2 violations per 100,000 people served, this rate is moderate and suggests recurring water quality challenges.

Consumer Guidance

Tap water in Brevard County meets baseline safety standards, though the compliance record shows some violations worth watching. Brevard County's drinking-water compliance score is 65.6 out of 100. The violation rate for Brevard County is 3.2 per 100,000 people served. Running tap water for 30 seconds before drinking can reduce any localized lead exposure from household plumbing. Requesting your utility's most recent Consumer Confidence Report is the fastest way to identify which specific contaminants were flagged. Mercury in Fish Tissue is the leading impairment cause in Brevard County's watershed. With 353 active water-quality monitoring sites in Brevard County, data coverage is strong. Live streamflow monitoring from the ST. JOHNS RIVER gauge is also available on this page.

Regional Context

Brevard County has better water quality than the average county in Florida. Its water score is 9.6 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 Brevard County's water environment

Watershed Impairment Causes (EPA ATTAINS)

  • 1

    Mercury (fish tissue)

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

  • 2

    Phosphorus (excess nutrients)

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

  • 3

    Low dissolved oxygen

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

Source: EPA ATTAINS · Reporting cycle 2022

Official EPA Resources for Brevard County

EPA How's My Waterway

Interactive watershed health data for Brevard County

EPA ECHO: Drinking Water Systems

Search water utilities and violation records for Brevard County

Consumer Confidence Reports (FL)

Annual water quality reports from utilities in Florida

Clean Water Act §303(d)

Watershed Health

Impaired Water Bodies

37.2%

294 of 790 assessed

Moderate concern

Top Impairment Causes

  • 1

    MERCURY IN FISH TISSUE

  • 2

    PHOSPHORUS, TOTAL

  • 3

    DISSOLVED OXYGEN

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

353

Active in the past 5 years

Measurements Recorded

235K

235,102 total readings

Most Measured

  • Inorganics, Minor, Metals
  • Physical
  • 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

253cfs

May 14, 6:15 PM UTC

vs Long-Term Average

25%

Well below typical

Primary Streamgage

ST. JOHNS RIVER NEAR COCOA, FL

USGS site
02232400
Drainage area
1,331 sq mi
Long-term mean
1,003 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 Brevard 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 Brevard County, Florida?
Brevard County, Florida has a drinking-water quality grade of B with a score of 65.6/100, based on EPA SDWIS compliance data. The county has 23 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 Brevard County?
Brevard County has 23 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 healthy are the watersheds in Brevard County?
EPA ATTAINS assessments under Clean Water Act §303(d) indicate 37.2% of Brevard County's 790 assessed water bodies are classified as impaired (294 impaired). The top reported causes are MERCURY IN FISH TISSUE, PHOSPHORUS, TOTAL, DISSOLVED OXYGEN. 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 Brevard County?
EPA's Water Quality Portal records 235,102 measurements from 353 monitoring sites in Brevard County over the past five years. The most frequently measured characteristic groups are Inorganics, Minor, Metals, Physical, 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 Brevard County right now?
Brevard County's primary USGS streamgage on the ST. JOHNS RIVER has a pipeline snapshot of 253 cubic feet per second — 25% of the long-term mean of 1,002.79 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 Brevard County water compare to the Florida average?
Brevard County's SDWIS water quality score of 65.6/100 is higher than the Florida state average of 56.0. The average water quality grade across Florida is D, based on data from 66 counties with available SDWIS data.
Is tap water safe to drink in Brevard County?
Based on EPA SDWIS data, Brevard County has a water quality grade of B (65.6/100). 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).
Why does Brevard County have so many water violations?
Brevard County has 23 health-based drinking water violations on record from the EPA SDWIS database. A higher violation count can result from aging infrastructure, underfunded water utilities, agricultural runoff contamination, or industrial pollution. Counties with more water systems may also see more violations simply due to scale. Residents concerned about water quality should consider independent water testing and home filtration systems.
How does Brevard County rank for water quality in Florida?
Brevard County ranks #27 out of 66 counties in Florida by SDWIS water quality score (1 = best). With a score of 65.6/100, 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

Palm Beach County

Florida

B

64.5

Water score

Lee County

Florida

B

64.2

Water score

Pasco County

Florida

B

67.3

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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