TapGraded
B

THE CAPE MASTER SYSTEM

Cary, NC · 11,587 served

THE CAPE MASTER SYSTEM serves 11,587 people in Cary, NC. It has 0 health-based violations in the last 5 years. TapGraded gives this system a B.

Score breakdown

Health-based violations (5y)

0

Monitoring violations (5y)

2

Currently unaddressed

0

Overall score

88/100

Violation history (last 5 years)

2024
2026
Health-based Monitoring / reporting

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Lead (Lead and Copper Rule)

EPA's current lead action level is 15 ppb (dropping to 10 ppb in 2027 under the Lead and Copper Rule Improvements).

90th-percentile lead sample 3 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

HFPO-DA 8.4 ppt
0 ppt EPA MCL: 10 ppt
PFOA (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
PFNA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt
PFOS (not detected) 0 ppt
0 ppt EPA MCL: 4 ppt
PFHxS (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt

System details

System type
Community water system
Water source
Ground water
Ownership
Private
Service connections
4,562

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Frequently asked questions

Is Cary, NC tap water safe to drink?

THE CAPE MASTER SYSTEM has 0 health-based violations in the last 5 years. TapGraded gives this system a B.

Does THE CAPE MASTER SYSTEM have lead in its water?

The most recent 90th-percentile lead sample is 3 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in THE CAPE MASTER SYSTEM's water?

Yes — PFAS was detected, but below the EPA MCL for every tracked analyte.

Source: EPA SDWIS/ECHO · Data as of 2026Q2