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Water Quality Report · Updated October 07, 2026

WATERFORD TOWNSHIP

Serving 73,441 residents in WATERFORD, Michigan .

National rank 71th percentile
Michigan rank 23th percentile
Data confidence Medium
Quick answer

WATERFORD TOWNSHIP delivers tap water graded B (76/100) by TapWaterSafety.org. The utility serves approximately 73,441 residents in WATERFORD, Michigan using groundwater. The most significant water quality concerns are: Arsenic significantly above health guideline; Perfluorohexane sulfonate (PFHXS) significantly above health guideline; Haloacetic acids (HAA9) significantly above health guideline. For questions, the utility can be reached at 248-618-7462.

Data sources for this grade: utilities.csv EWG Tap Water Database ⓘ How did we get this rating?
73,441
People served
1
City served
15
Contaminants detected
5
Above health guidelines

Is WATERFORD tap water safe to drink?

WATERFORD TOWNSHIP delivers tap water that earns a grade of B (76/100) from TapWaterSafety.org — a good rating, with only minor concerns relative to health-based guidelines.

The utility serves 73,441 residents in WATERFORD, drawing from groundwater.

Public testing data identifies 5 contaminants in this water above EWG's health-based guidelines, including: Arsenic, Perfluorohexane sulfonate (PFHXS), Haloacetic acids (HAA9), Total trihalomethanes (TTHMs), Haloacetic acids (HAA5). For most residents, a properly certified home filter at the kitchen tap is the most cost-effective way to reduce exposure to whatever's in your water. See our filter recommendations below, matched specifically to this utility's contaminant profile.

EPA compliance record

Official U.S. EPA records for WATERFORD TOWNSHIP (system ID MI0006910) for the last 3 years. Checked 2026-10-07.

Health-based violation in the last 3 years. A contaminant was above the legal limit or required treatment was not met in at least one quarter.
3 of 12quarters with a violation
Nolead above EPA action level
09/29/2021last state inspection
RuleTypeSinceStatus
Lead and Copper Rule Required treatment not met 01/01/2023 Open
Revised Total Coliform Rule Missed reporting 12/11/2024 Open

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

Top concerns in this water

Based on the most recent EPA and EWG data, these are the most significant water quality issues for WATERFORD TOWNSHIP.

Arsenic significantly above health guideline

Moderate concern

Arsenic detected at 3.2 ppb, 799x above the EWG health guideline of 0.004 ppb.

Perfluorohexane sulfonate (PFHXS) significantly above health guideline

Moderate concern

Perfluorohexane sulfonate (PFHXS) detected at 0.36 ppt, 360x above the EWG health guideline of 0.001 ppt.

Haloacetic acids (HAA9) significantly above health guideline

Moderate concern

Haloacetic acids (HAA9) detected at 11.7 ppb, 195x above the EWG health guideline of 0.06 ppb.

Contact WATERFORD TOWNSHIP

Reach the utility directly for service issues, water quality concerns, or to request your Consumer Confidence Report.

Recommended water filters for WATERFORD

Filters matched to the specific contaminants in this water supply.

Reverse osmosis certified for arsenic (NSF/ANSI 58)

$429-$599

Reverse osmosis certified under NSF/ANSI 58 for arsenic is the most reliable home option.

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

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
Editorial pick · affiliate link coming soon
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.

Score breakdown

This utility's overall score of 76/100 breaks down across five weighted components. Read the full methodology →

Health Guideline Performance
27 / 40
Legal Compliance
17 / 20
High-Risk Contaminants
15 / 20
Compliance History
8 / 10
Source Water Vulnerability
8 / 10

Contaminants detected — international standards comparison

Every contaminant detected, compared side-by-side against US EPA legal limits, the EU Drinking Water Directive (2020/2184), WHO Guidelines, and California's Public Health Goal (the strictest US benchmark). 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
Arsenic
Heavy metal
3.2 ppb 0.004 10.0 10 10 0.004 — 799× over
Perfluorohexane sulfonate (PFHXS)
PFAS
0.36 ppt 0.001 10.0 — — — — 360× over
Haloacetic acids (HAA9)
Disinfection byproduct
11.7 ppb 0.06 — — — — — 195× over
Total trihalomethanes (TTHMs)
Disinfection byproduct
21.8 ppb 0.15 80.0 100 — — — 145× over
Haloacetic acids (HAA5)
Disinfection byproduct
5.17 ppb 0.1 60.0 60 — — — 52× over
Molybdenum
Other
7.02 ppb 40.0 — — — — — Below guideline
Manganese
Heavy metal
6.21 ppb 100.0 — 50 80 — — Below guideline
Chromium (hexavalent)
Heavy metal
0.000652 ppb 0.02 — — — — — Below guideline
1,4-Dioxane
Semi-volatile organic compound
0.00375 ppb 0.35 — — 50 1 — Below guideline
Cobalt
Other
0.0457 ppb 70.0 — — — — — Below guideline
Strontium
Radiological
0.366 ppb 1500.0 — — — — — Below guideline
Perfluorohexanoic Acid (PFHxA)
PFAS
0.124 ppt 1000.0 — — — — — Below guideline
Perfluorobutane sulfonate (PFBS)
PFAS
0.217 ppt 2000.0 — — — — — Below guideline
Fluoride
Inorganic
0.377 ppm — 4.0 1.5 1.5 — — Below guideline
Lithium
Other
4.91 ppb — — — — — — 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 (4th ed.), California OEHHA PHGs, EWG Tap Water Database.

WATERFORD TOWNSHIP service area

This water system serves 1 community in Oakland County, Michigan. Click any city for its dedicated tap water quality page.

About this water system

Public Water System ID
MI0006910
Owner type
Local government
Source water
Groundwater
Service connections
24,601
Service area
WATERFORD, Oakland County, Michigan