PlainWater
States → Texas

NORTHWEST HARRIS COUNTY MUD 15

PWS ID: TX1011600 · HOUSTON, Texas 77056-3078

NORTHWEST HARRIS COUNTY MUD 15 serves 6,915 people in HOUSTON, Texas using Groundwater water sources. It has 8 recorded EPA violations, including 2 health-based violations. PFAS "forever chemicals" were detected in UCMR5 testing (1 compound found).

Water Quality Snapshot: NORTHWEST HARRIS COUNTY MUD 15

NORTHWEST HARRIS COUNTY MUD 15 is a local-owned community water system that delivers drinking water to 6,915 residents in HOUSTON, Texas (Harris County) through 2,305 service connections. Its water is drawn from groundwater sources. EPA's Safe Drinking Water Information System records 8 total violations for this system , of which 2 (25%) are health-based — meaning a contaminant exceeded an EPA Maximum Contaminant Level or a required treatment technique failed. The most recent violation on record dates to 2011.

The most frequently cited contaminant at this system is Coliform (TCR), recorded in 2 violations (MCL, health-based). Under EPA's UCMR5 PFAS monitoring program, 1 PFAS compound was detected in samples collected from this system, with a maximum reported concentration of 41.7 ppt. PFAS are persistent synthetic chemicals linked to health effects at very low exposure levels.

Across Texas, EPA tracks 7,351 public water systems serving 33,253,313 people, with 746,210 cumulative violations and 162,945 health-based violations on record. About 90% of systems in the state carry at least one violation, and state-wide the average per system is 101.5 violations. NORTHWEST HARRIS COUNTY MUD 15's 8 violations sit below the Texas average. Statewide, 1,068 of 1,147 UCMR5-tested systems have reported PFAS detections (93.1%). All figures above are sourced directly from EPA SDWIS and UCMR5 public data releases and are updated as EPA publishes new reporting cycles.

PFAS Detected

1 PFAS "forever chemicals" detected in testing under EPA's UCMR5 monitoring program.

Population Served
6,915
Total Violations
8
Health-Based Violations
2
Water Source
Groundwater

System Details

System Type
Community
Owner Type
Local
Connections
2,305
County
Harris
School/Daycare
No
MCL Violations
2
Monitoring Violations
0
Treatment Tech Violations
0

Violation History

Contaminant violations recorded by EPA.

Contaminant Category Count Latest
Coliform (TCR) MCL 2 2011

PFAS Testing Results (UCMR5)

Results from EPA's Fifth Unregulated Contaminant Monitoring Rule. 4 of 120 samples detected PFAS.

Contaminant Date Result MRL Status
PFHpS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
9Cl-PF3ONS 11/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
NFDHA 11/6/2024 <0.02 µg/L 0.02 µg/L Not Detected
NEtFOSAA 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
NMeFOSAA 11/6/2024 <0.006 µg/L 0.006 µg/L Not Detected
PFBS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFTrDA 11/6/2024 <0.007 µg/L 0.007 µg/L Not Detected
11Cl-PF3OUdS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTA 11/6/2024 <0.008 µg/L 0.008 µg/L Not Detected
ADONA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
HFPO-DA 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBA 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
6:2 FTS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
4:2 FTS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFPeA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFMBA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFEESA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFPeS 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
lithium 11/6/2024 41.7000 µg/L 9 µg/L Detected
PFUnA 11/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
NMeFOSAA 11/6/2024 <0.006 µg/L 0.006 µg/L Not Detected
6:2 FTS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFTrDA 11/6/2024 <0.007 µg/L 0.007 µg/L Not Detected
PFHxS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFNA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOS 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFOA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected
PFDA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFDoA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHxA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFUnA 11/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
11Cl-PF3OUdS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
9Cl-PF3ONS 11/6/2024 <0.002 µg/L 0.002 µg/L Not Detected
ADONA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFHpA 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
PFBA 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFBS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
4:2 FTS 11/6/2024 <0.003 µg/L 0.003 µg/L Not Detected
8:2 FTS 11/6/2024 <0.005 µg/L 0.005 µg/L Not Detected
PFMPA 11/6/2024 <0.004 µg/L 0.004 µg/L Not Detected

Verify This Water System

The figures above are aggregated from EPA's public databases. To verify the underlying records — or to file a complaint, request a Consumer Confidence Report, or check current monitoring status — go directly to the federal and state regulators that enforce the Safe Drinking Water Act for NORTHWEST HARRIS COUNTY MUD 15.

Federal Source of Truth

EPA SDWIS — Federal Reports

EPA's Safe Drinking Water Information System (SDWIS) holds the federal compliance record for every regulated public water system. Open the system-level report by PWS ID:

View PWS ID TX1011600 on SDWIS

Source: EPA SDWIS Federal Reports Search

State Regulator

Texas Drinking Water Authority

Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch is the primacy agency that licenses and inspects NORTHWEST HARRIS COUNTY MUD 15 under EPA-delegated authority.

Open TX regulator portal

Source: Texas Commission on Environmental Quality (TCEQ) — Drinking Water Watch

Violation Timeline

Each row links to the EPA SDWIS public record for verification. Cross-reference the contaminant code on EPA's federal report to see violation dates, return-to-compliance status, and enforcement actions.

Year (latest) Contaminant Category Count EPA Record
2011 Coliform (TCR) MCL 2 SDWIS / TX1011600 / 3100

How NORTHWEST HARRIS COUNTY MUD 15 Compares

Cross-reference this system's record against state averages and the federal MCL framework for context.

Metric NORTHWEST HARRIS COUNTY MUD 15 Texas avg Federal benchmark
Total violations 8 101.5 SDWA compliance — any non-zero count is a recorded breach
Health-based violations 2 22.2 Indicates a contaminant exceeded a federal MCL
PFAS detection 1 compound 93.1% EPA final rule (2024): PFOA/PFOS MCL = 4.0 ppt
Population served 6,915 4,524 Sizing context for compliance burden

Sources: EPA SDWIS and EPA National Primary Drinking Water Regulations (40 CFR Part 141). State averages computed across 7,351 regulated public water systems in Texas.

Federal MCL reference — Safe Drinking Water Act thresholds ▼
Contaminant Federal MCL / Action Level Note
Lead 0 mg/L (Action Level: 0.015 mg/L) Lead and Copper Rule treatment technique
Arsenic 0.010 mg/L (10 ppb) Health-based MCL since 2006
Total Coliform Treatment technique (RTCR) Indicator organism, monitoring trigger
PFOA / PFOS (PFAS) 4.0 ppt each (final 2024 rule) Compliance deadline 2029
Nitrate (as N) 10 mg/L Acute health risk for infants

Frequently Asked Questions

Is NORTHWEST HARRIS COUNTY MUD 15 water safe to drink? ▼
NORTHWEST HARRIS COUNTY MUD 15 (PWS ID: TX1011600) has 8 recorded violations in the EPA SDWIS database. PFAS contamination has been detected in UCMR5 testing, with 1 PFAS compound found. This system serves 6,915 people using Groundwater sources.
How many people does NORTHWEST HARRIS COUNTY MUD 15 serve? ▼
NORTHWEST HARRIS COUNTY MUD 15 serves 6,915 people in HOUSTON, Texas. It is a Local-owned system using Groundwater water sources with 2,305 service connections.
What type of violations does NORTHWEST HARRIS COUNTY MUD 15 have? ▼
NORTHWEST HARRIS COUNTY MUD 15 has 8 total violations: 2 health-based violations (MCL exceedances or treatment failures), 0 monitoring/reporting violations, and 0 treatment technique violations. Health-based violations indicate contaminant levels exceeded EPA safe limits.
Has PFAS been detected in NORTHWEST HARRIS COUNTY MUD 15 water? ▼
Yes. UCMR5 testing detected 1 PFAS compound in NORTHWEST HARRIS COUNTY MUD 15's water supply: lithium. PFAS are persistent "forever chemicals" that do not break down in the environment.
What water source does NORTHWEST HARRIS COUNTY MUD 15 use? ▼
NORTHWEST HARRIS COUNTY MUD 15 uses Groundwater as its primary water source. It is classified as a Community Water System (CWS), serving residential populations year-round.
Where does this data come from? ▼
All data comes from the EPA Safe Drinking Water Information System (SDWIS) and the UCMR5 PFAS monitoring program. SDWIS tracks compliance for all public water systems regulated under the Safe Drinking Water Act.

Explore PlainWater

Water in Texas

All systems in state
All States

Water quality by state
Contaminants

PFAS & other pollutants
Guides

Understanding water quality

Related Data for Texas

Environmental Data → Natural Hazards → Air Quality → Healthcare Access → Climate Data →
Data Sources: EPA Safe Drinking Water Information System (SDWIS), Q4 2025. PFAS data from EPA UCMR5 monitoring program (2023-2025). This data is provided for informational purposes only.

Read our methodology — how this data is sourced, computed, and verified.

Related

Browse all → | Rankings →
Data sourced from $official public datasets. See our methodology for details. Retrieved and formatted by PlainWater Editorial