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Tap Water Quality Report

Tap water quality in ALPHARETTA, Georgia

Served by NORTH FULTON COUNTY. 434,517 residents.

Average score 73/100
Utilities 1
Population 434,517
Quick answer

Tap water in ALPHARETTA, Georgia receives a grade of C (73/100) from TapWaterSafety.org. It's served by NORTH FULTON COUNTY. The most significant water quality concerns are: Haloacetic acids (HAA9) significantly above health guideline; Total trihalomethanes (TTHMs) significantly above health guideline; Haloacetic acids (HAA5) significantly above health guideline. Data sources: EPA SDWIS, EPA ECHO, EWG Tap Water Database.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?

What's in ALPHARETTA's tap water

Top water quality concerns identified by the EPA and Environmental Working Group across the utility serving ALPHARETTA.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 34.9 ppb, 582x above the EWG health guideline of 0.06 ppb.

Total trihalomethanes (TTHMs) significantly above health guideline

Moderate concern

Total trihalomethanes (TTHMs) detected at 47.8 ppb, 319x above the EWG health guideline of 0.15 ppb.

Haloacetic acids (HAA5) significantly above health guideline

Moderate concern

Haloacetic acids (HAA5) detected at 31.4 ppb, 314x above the EWG health guideline of 0.1 ppb.

EPA compliance record

Official U.S. EPA records for NORTH FULTON COUNTY (system ID GA1210005) for the last 3 years. Checked 2026-10-07.

No health-based violations. EPA recorded 2 quarters with a testing, reporting or notice violation.
2 of 12quarters with a violation
Nolead above EPA action level
06/24/2025last state inspection
RuleTypeSinceStatus
Consumer Confidence Rule Other (e.g. public notice) 07/01/2023 Open

Source: U.S. EPA Enforcement and Compliance History Online (ECHO), from the Safe Drinking Water Information System. See EPA's full report.

Recommended filters for ALPHARETTA

Filters matched to the specific contaminants in ALPHARETTA's water supply.

Carbon filter certified for VOCs (NSF/ANSI 53)

$180-$599

Activated carbon is effective for disinfection byproducts. Look for NSF/ANSI 53 VOC reduction.

Aquasana AQ-5300 Under-Sink Filter
$180-$240 NSF 42, 53, 401, 372
Editorial pick · affiliate link coming soon
AquaTru Countertop Reverse Osmosis
$449-$599 NSF 42, 53, 58, 401, 372
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Aquasana OptimH2O Reverse Osmosis + Claryum
$429-$549 NSF 42, 53, 58, 401
Editorial pick · affiliate link coming soon

Disclosure: TapWaterSafety earns a commission from purchases made through these links. This does not influence our scoring methodology or filter selection.

All contaminants detected in ALPHARETTA's tap water

Every contaminant identified, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal. Why we show multiple standards →

Contaminant Detected EWG
US health-based
EPA
US legal
EU DWD
Europe
WHO
global
CA PHG
strictest US
Tested
sample year
Status
Haloacetic acids (HAA9)
Disinfection byproduct
34.9 ppb 0.06 — — — — — 582× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
47.8 ppb 0.15 80.0 100 — — — 319× over
Haloacetic acids (HAA5)
Disinfection byproduct
31.4 ppb 0.1 60.0 60 — — — 314× over
Trichloroacetic acid
Disinfection byproduct
16.9 ppb 0.1 — — — — — 169× over
Chloroform
Disinfection byproduct
40.3 ppb 0.4 — — — — — 101× over
Bromodichloromethane
Disinfection byproduct
4.43 ppb 0.06 — — — — — 74× over
Dichloroacetic acid
Disinfection byproduct
14.1 ppb 0.2 — — — — — 70× over
Dibromochloromethane
Disinfection byproduct
2.87 ppb 0.1 — — — — — 29× over
Chromium (hexavalent)
Heavy metal
0.146 ppb 0.02 — — — — — 7.3× over
Dibromoacetic acid
Disinfection byproduct
0.04 ppb 0.03 — — — — — 1.3× over
Chlorate
Disinfection byproduct
136.0 ppb 210.0 — — — — — Below guideline
Vanadium
Other
0.33 ppb 21.0 — — — — — Below guideline
Monobromoacetic acid
Disinfection byproduct
0.178 ppb 25.0 — — — — — Below guideline
Monochloroacetic acid
Disinfection byproduct
0.166 ppb 53.0 — — — — — Below guideline
Manganese
Heavy metal
0.0913 ppb 100.0 — 50 80 — — Below guideline
Strontium
Radiological
0.0348 ppb 1500.0 — — — — — Below guideline

All values in the unit of the detected level. Red cells indicate the detected level exceeds that standard. Some contaminants have limits in some jurisdictions but not others (shown as —). The "Tested" column shows the year each contaminant sample was collected.

Sources: US EPA, EU Drinking Water Directive 2020/2184, WHO Guidelines, California OEHHA PHGs, EWG Tap Water Database.

Treatment plant contact info

For service issues, water quality concerns, or to request a Consumer Confidence Report from NORTH FULTON COUNTY.

ZIP codes served

ALPHARETTA's public water systems serve the following ZIP codes: