HARRIS COUNTY MUD 489
Houston, TX · 10,476 served
HARRIS COUNTY MUD 489 serves 10,476 people in Houston, TX. It has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Score breakdown
Health-based violations (5y)
0
Monitoring violations (5y)
0
Currently unaddressed
0
Overall score
100/100
Violation history (last 5 years)
No violations on record.
Get alerted when HARRIS COUNTY MUD 489 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).
PFAS (UCMR5 occurrence data)
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
System details
- System type
- Community water system
- Water source
- Ground water purchased from another system
- Ownership
- Local government
- Service connections
- 3,492
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 waterFrequently asked questions
Is Houston, TX tap water safe to drink?
HARRIS COUNTY MUD 489 has 0 health-based violations in the last 5 years. TapGraded gives this system an A.
Does HARRIS COUNTY MUD 489 have lead in its water?
The most recent 90th-percentile lead sample is 1.5 ppb, versus the EPA action level of 15 ppb.
Has PFAS been detected in HARRIS COUNTY MUD 489's water?
This system was not required to sample under UCMR5 (systems serving fewer than 3,300 people are mostly exempt).
Source: EPA SDWIS/ECHO · Data as of 2026Q2