WaterVerge

Is North Zulch, TX Tap Water Safe to Drink?

Graded A-, with 6 unresolved violations on record. See what was cited — and what it means for your tap. What to do next ↓

2K residents served 1 water system PWSID: TX1570004
Overall Score
85.8 / 100
Violations
6 active
Last Updated
May 2026
Source
Groundwater
#181 of 1067 in Texas Top 33% nationally
Local Government
Moderate data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
A-GRADE
Water Quality Grade
85.8/100
waterverge.com
A- 85.8/100

North Zulch, TX — Water Quality Report

North Zulch's drinking water received a grade of A- (85.8 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,800 residents using groundwater.

Lead levels were measured at 0.0 ppb (90th percentile), well within EPA limits. This system has not yet been tested for PFAS under the EPA UCMR 5 program.

The system has 9 violations on record, including 1 health-based violation. 6 remain unresolved.

Data last updated: May 2026 · Source: EPA SDWIS, UCMR 5
Analysis

What to know about North Zulch's water

North Zulch ranks #181 out of 1067 cities in Texas for water quality, placing it above average in the state.

North Zulch relies on groundwater, which is generally less vulnerable to surface contamination but can be affected by naturally occurring minerals like arsenic and nitrate, as well as agricultural and industrial runoff.

As a small community water system, North Zulch may have fewer resources for advanced treatment technologies and infrastructure upgrades compared to larger utilities.

Quality Breakdown

Water quality score

See methodology →
85.8 out of 100 Grade A-
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
43.8/45
A
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.0 ppb (90th percentile).
Contaminants
17/20
B
PFAS + legacy contaminant analysis.
Compliance
0/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
5/5
A
Water source: Groundwater.
Water Safety

Is North Zulch, TX water safe to drink?

Concerns Identified

North Zulch's drinking water has significant quality concerns based on EPA testing data. With a grade of A- (85.8/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,800 residents using groundwater (wells).

6
Active Violations
0.0 ppb
Lead (90th %ile)
9 events
Disaster History

Recent water quality updates for North Zulch

A timeline of significant water quality events, violations, and data updates.

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into North Zulch's water quality assessment. Grade: A- (85.8/100).

Disaster
HURRICANE BERYL

Federal disaster declaration (FEMA DR-4798). Hurricane event — may have impacted local water infrastructure.

Disaster
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING

Federal disaster declaration (FEMA DR-4781). Flood event — may have impacted local water infrastructure.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: Lead and Copper Rule.

Violation
1 drinking water violation recorded

Contaminants: E. COLI.

Key contaminant findings

Based on the most recent EPA sampling data for North Zulch's water supply.

Lead Within Limits
Detected: 0.0 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

North Zulch's water system has 9 total violations on record, including 1 health-based violation. 6 remain unresolved.

MRMCL
Most recent violations:
Dec 2017 Lead and Copper Rule Open
Oct 2015 Lead and Copper Rule Open
Sep 2015 E. COLI Open
Aug 2015 Coliform (TCR) Resolved
Oct 2011 Lead and Copper Rule Open

Flood & environmental risk

Madison County has experienced 9 federally declared disasters since 2005. Flooding and severe storms can overwhelm water treatment plants, cause sewage overflows, and introduce agricultural runoff, bacteria, and sediment into drinking water supplies. Local water sources include Navasota Rv At Old San Antonio Rd Nr Bryan.

HURRICANE BERYL
Hurricane FEMA DR-4798
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING
Flood FEMA DR-4781
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA DR-3540

Where does North Zulch's water come from?

North Zulch's drinking water comes from groundwater (wells), supplied by 1 water system serving approximately 1,800 people. Groundwater is generally less susceptible to surface contamination but can contain naturally occurring contaminants like arsenic, radon, and nitrate. Nearby water bodies include Navasota Rv At Old San Antonio Rd Nr Bryan (river).

What North Zulch residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in North Zulch's water.

Request your utility's CCR

Your water utility is required to publish an annual Consumer Confidence Report (CCR) with detailed testing results. Ask for the latest copy or check your utility's website.

Monitor alerts during storms

North Zulch's area has a history of flooding. After severe weather, watch for boil water advisories from your local utility.

Data: EPA SDWIS, UCMR 5 (PFAS), FEMA, NOAA. Last updated May 2026.

Contaminant Alerts

Top contaminants to know

View all ↓
Lead (90th percentile)
Inorganic / Heavy Metal
Safe
0.0 ppb
EPA Action Level: 15 ppb · 0% of limit
Safe Level
Compliance Record

Violation summary

9
Total violations
1
Health-based
6
Active / unresolved
Dec 2017
Most recent violation
Compliance Record

Violations & advisories

9 Total
6 Active
1 Health-based
3 Resolved
Violations by category
Lead and Copper Rule
3
Ground Water Rule
2
Total Coliform Rule
2
Stage 1 Disinfectants and Disinfection Byproducts Rule
1
Dec 2017 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2015 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Oct 2011 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Sep 2010 Active
E. COLI
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Aug 2015 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Aug 2015
Jul 2010 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Sep 2010
Oct 2003 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Oct 2003
Environmental Risk

Drought conditions

D1 — moderate drought

Madison County is currently in D1 (moderate drought) per the U.S. Drought Monitor (week of May 5, 2026). Drought can elevate disinfection-byproduct (TTHM/HAA5) levels and taste/odor issues as utilities draw from lower reservoirs.

12.5%
Months in D2+ (last 30y)
13
Weeks at D2+ (last 5y)

Source: U.S. Drought Monitor, updated weekly by NDMC, USDA, and NOAA.

Environmental Risk

Flood & disaster history

9
Declared disasters
Jul 2024
Most recent
Hurricane
Most common type

Madison County has experienced 9 federally declared disasters since 2005. Flooding and severe weather can compromise water treatment infrastructure and introduce contaminants into drinking water supplies.

Jul 2024
HURRICANE BERYL
Hurricane FEMA #4798
May 2024
SEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODING
Flood FEMA #4781
Aug 2020
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA #3540
Feb 2019
SEVERE STORMS AND FLOODING
Flood FEMA #4416
Aug 2017
HURRICANE HARVEY
Hurricane FEMA #4332
Jun 2016
SEVERE STORMS AND FLOODING
Flood FEMA #4272

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.0 15 ppb Inorganic Safe
Data source: EPA SDWIS, UCMR 5, local utility CCR.

Lead level trend (90th percentile)

EPA action level: 15 ppb
Lead has decreased by 4.6 ppb from 1994 (4.6 ppb) to 2023 (0.0 ppb).
Contaminant Rankings

See how North Zulch compares by contaminant

Explore where North Zulch ranks among all Texas cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Groundwater
Operator
Local Government
Population Served
1,800
Water Systems
1
Water Source

Where North Zulch's water comes from

Groundwater

North Zulch's drinking water is drawn from underground aquifers through wells.

Groundwater is naturally filtered through rock and soil layers, generally requiring less treatment than surface water. However, it can contain naturally occurring contaminants like arsenic, radon, and minerals.

Agricultural activity, septic systems, and industrial operations near well fields can introduce nitrates, pesticides, and volatile organic compounds.

The system is operated by local government ownership and serves approximately 1,800 people through 1 water system.

Local Hydrology

Water bodies near North Zulch

North Zulch is located near 1 notable water body. These water bodies contribute to the regional watershed and may indirectly affect groundwater quality.

Navasota Rv At Old San Antonio Rd Nr Bryan
river
Infrastructure

Water systems serving North Zulch

System Name PWSID Population Source
NORTH ZULCH MUD TX1570004 1,800 GW
Regional Comparison

How North Zulch compares

Full Texas rankings →

North Zulch's score of 85.8/100 is above the average of 46/100 among major Texas cities. It outscores 9 of 10 nearby cities.

North Zulch (this city)
85.8
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
City Profile

About North Zulch, TX

Wikipedia →

North Zulch is an unincorporated community in Madison County, Texas, United States, at the intersection of Farm to Market Road 39 and State Highway 21. It is 6 miles (9.7 km) from the Navasota River and 13 miles (21 km) west of Madisonville in west-central Madison County.

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Frequently asked questions

Is North Zulch, TX tap water safe to drink?

North Zulch's water quality earned a grade of A- (85.8/100). The water generally meets EPA standards and is considered safe for consumption. The city ranks #181 out of 1067 cities tested in Texas.

What contaminants are in North Zulch's water?

Lead was measured at 0.0 ppb (90th percentile). 9 violations are on record.

How is North Zulch's water quality grade calculated?

The grade is based on four factors: violation history (40%), lead and copper levels (25%), PFAS contamination (25%), and regulatory compliance (10%). The score is also adjusted based on how complete the available data is. See our methodology page for full details.

Do I need a water filter in North Zulch?

Based on current data, basic filtration should suffice for additional peace of mind.

Where does North Zulch's water come from?

North Zulch's water is sourced from Groundwater. The city has 1 water system serving approximately 1,800 residents.

What health violations has North Zulch's water system had?

North Zulch has 1 health-based violation on record. The most recent violation was recorded in December 2017. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 6 violations remain unresolved.

Is North Zulch's groundwater at risk of contamination?

North Zulch uses groundwater, which can be affected by naturally occurring contaminants like arsenic, radon, and nitrate, as well as agricultural runoff and industrial activity. The system has 9 violations on record that may relate to groundwater quality. Groundwater systems are generally less susceptible to surface contamination but should be monitored for emerging contaminants like PFAS.

How does North Zulch's water compare to other cities?

North Zulch ranks #181 out of 1067 cities in Texas (better than 83% of state cities) and #5106 out of 15744 cities nationally (68th percentile). The grade of A- reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does North Zulch's small water system affect quality?

North Zulch's system serves approximately 1,800 residents. Small community water systems (under 3,300 people) may have fewer financial resources for infrastructure upgrades and advanced treatment technologies. However, they are held to the same EPA drinking water standards as larger systems. This system has 9 violations on record.