TapGraded
F

MANVILLE WSC

Coupland, TX · 39,648 served

MANVILLE WSC serves 39,648 people in Coupland, TX. It has 4 health-based violations in the last 5 years. TapGraded gives this system an F.

Score breakdown

Health-based violations (5y)

4

Monitoring violations (5y)

5

Currently unaddressed

0

Overall score

38/100

Violation history (last 5 years)

2024
2025
2026
Health-based Monitoring / reporting

Get alerted when MANVILLE WSC gets a violation

We'll only email you about this water system. Unsubscribe anytime.

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 1.4 ppb
0 ppb EPA action level: 15 ppb

PFAS (UCMR5 occurrence data)

PFOS 12.4 ppt over limit
0 ppt EPA MCL: 4 ppt
PFOA 5.9 ppt over limit
0 ppt EPA MCL: 4 ppt
PFNA 24.3 ppt over limit
0 ppt EPA MCL: 10 ppt
PFHxS 7 ppt
0 ppt EPA MCL: 10 ppt
HFPO-DA (not detected) 0 ppt
0 ppt EPA MCL: 10 ppt

System details

System type
Community water system
Water source
Surface water purchased from another system
Ownership
Local government
Service connections
11,987

Worried about what's in your tap?

See which water filters are certified to remove the contaminants found in your area.

Find a filter that matches your water

Frequently asked questions

Is Coupland, TX tap water safe to drink?

MANVILLE WSC has 4 health-based violations in the last 5 years. TapGraded gives this system an F.

Does MANVILLE WSC have lead in its water?

The most recent 90th-percentile lead sample is 1.4 ppb, versus the EPA action level of 15 ppb.

Has PFAS been detected in MANVILLE WSC's water?

Yes — PFAS was detected at or above the EPA MCL for 3 of the tracked analytes.

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