WaterVerge

Is Oyster Creek, TX Tap Water Safe to Drink?

Graded B — but NDMA was detected above EPA limits. Here's what's in the water and how to remove it. What to do next ↓

2K residents served 1 water system PWSID: TX0200230
Overall Score
75.7 / 100
Violations
9 active
Last Updated
May 2026
Source
Purchased surface water
#482 of 1067 in Texas Top 61% nationally
Local Government
High data confidence
Reviewed by WaterVerge Editorial Team · Last updated May 2026
BGRADE
Water Quality Grade
75.7/100
waterverge.com
B 75.7/100

Oyster Creek, TX — Water Quality Report

Oyster Creek's drinking water received a grade of B (75.7 out of 100), indicating good water quality. The city's 1 water system serves approximately 1,701 residents using purchased surface water.

Lead levels were measured at 0.6 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 19 violations on record, including 8 health-based violations. 9 remain unresolved.

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

What to know about Oyster Creek's water

Oyster Creek ranks #482 out of 1067 cities in Texas for water quality, placing it mid-range in the state.

The city draws from surface water sources, which are more susceptible to seasonal runoff and agricultural contamination, requiring extensive multi-barrier treatment including coagulation, filtration, and disinfection.

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

The system has seen 6 violations in the past five years, suggesting a pattern of compliance challenges that residents should monitor closely.

Quality Breakdown

Water quality score

See methodology →
75.7 out of 100 Grade B
A: 90-100
B: 74-89
C: 60-73
F: <50
How is this calculated?
Violations
32.8/45
C
Historical violation record including health-based and monitoring violations.
Lead & Copper
20/20
A
Lead at 0.6 ppb (90th percentile).
Contaminants
15.9/20
B
PFAS + legacy contaminant analysis.
Compliance
3/10
F
Monitoring and reporting compliance with EPA regulations.
Source Risk
4/5
B
Water source: Purchased surface water.
Water Safety

Is Oyster Creek, TX water safe to drink?

Concerns Identified

Oyster Creek's drinking water has significant quality concerns based on EPA testing data. With a grade of B (75.7/100), the system has issues across multiple categories. A water filter is recommended for all residents. The city's 1 water system serves approximately 1,701 residents using surface water (rivers, lakes, or reservoirs).

9
Active Violations
0.6 ppb
Lead (90th %ile)
10 events
Disaster History

Recent water quality updates for Oyster Creek

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

Update
Water quality data updated

Latest EPA compliance and testing data incorporated into Oyster Creek's water quality assessment. Grade: B (75.7/100).

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Violation
2 drinking water violations recorded

1 health-based. Contaminants: LEAD AND COPPER RULE REVISIONS.

Disaster
HURRICANE BERYL

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

Violation
1 drinking water violation recorded

Contaminants: Public Notice.

Disaster
TROPICAL STORMS MARCO AND LAURA

Federal disaster declaration (FEMA DR-3540). Hurricane event — may have impacted local water infrastructure.

Key contaminant findings

Based on the most recent EPA sampling data for Oyster Creek's water supply.

Lead Within Limits
Detected: 0.6 ppb Limit: 15 ppb (EPA Action Level)

Well within EPA limits.

Violation history

Oyster Creek's water system has 19 total violations on record, including 8 health-based violations. 9 remain unresolved. 6 violations were issued in the last 5 years.

OtherTTRPTMONMRMCL
Most recent violations:
May 2025 Public Notice Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2024 LEAD AND COPPER RULE REVISIONS Open
Oct 2023 Public Notice Open
Sep 2022 Revised Total Coliform Rule Resolved

Flood & environmental risk

Brazoria County has experienced 10 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 Bastrop Bayou At Cr 288 Nr Lake Jackson, Oyster Ck At Cr 290 Nr Angleton, Oyster Ck At Fm 2004 Nr Lake Jackson, Old Brazos Rv Nr Freeport, Brazos Rv At Giww Flood Gates Nr Freeport.

HURRICANE BERYL
Hurricane FEMA DR-4798
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA DR-3540
HURRICANE HANNA
Hurricane FEMA DR-3530

Where does Oyster Creek's water come from?

Oyster Creek's drinking water comes from surface water (rivers, lakes, or reservoirs), supplied by 1 water system serving approximately 1,701 people. Surface water sources are more susceptible to contamination from runoff, industrial discharge, and algal blooms, requiring extensive treatment. Nearby water bodies include Bastrop Bayou At Cr 288 Nr Lake Jackson (river), Oyster Ck At Cr 290 Nr Angleton (river), Oyster Ck At Fm 2004 Nr Lake Jackson (stream), Old Brazos Rv Nr Freeport (stream), Brazos Rv At Giww Flood Gates Nr Freeport (stream).

What Oyster Creek residents can do

Install a water filter

Recommended: NSF-certified water filter. This addresses the specific contaminants found in Oyster Creek'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

Oyster Creek'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
0.6 ppb
EPA Action Level: 15 ppb · 4% of limit
Safe Level
NDMA (N-Nitrosodimethylamine)
Disinfection Byproduct
Over CA PHG
22.0 ng/L
CA Public Health Goal: 10 ng/L · +20% over limit
Over CA PHGProbable CarcinogenUCMR 2 Data (2008–2010)
Compliance Record

Violation summary

19
Total violations
8
Health-based
9
Active / unresolved
May 2025
Most recent violation
Compliance Record

Violations & advisories

19 Total
9 Active
8 Health-based
10 Resolved
1 SNC
Violations by category
Stage 1 Disinfectants and Disinfection Byproducts Rule
6
Public Notice Rule and Revised PN Rule
4
Lead and Copper Rule Revisions
2
Lead and Copper Rule
2
Total Coliform Rule
2
May 2025 Active
Public Notice
Other Violation 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Treatment Technique
Health-Based Health 0
Oct 2024 Active
LEAD AND COPPER RULE REVISIONS
Reporting
Reporting 0
Oct 2023 Active
Public Notice
Other Violation 0
Oct 2021 Active
Public Notice
Other Violation 0
Dec 2015 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Jan 2015 Active
Public Notice
Other Violation 0
Oct 2014 Active
Lead and Copper Rule
Monitoring & Reporting
Monitoring & Reporting 0
Active
Compliance Violation
Monitoring 0
Sep 2022 Resolved
Revised Total Coliform Rule
Monitoring
Monitoring Resolved Sep 2022
Apr 2020 Resolved
Chlorine
Monitoring & Reporting
Monitoring & Reporting Resolved Jun 2020
Oct 2014 Resolved
TTHM
Max Contaminant Level
SNC Health Resolved Dec 2014
Jan 2013 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Mar 2013
Oct 2012 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Dec 2012
Jul 2012 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Sep 2012
Apr 2012 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Jun 2012
Jan 2012 Resolved
TTHM
Max Contaminant Level
Health-Based Health Resolved Mar 2012
Jul 2009 Resolved
Coliform (TCR)
Max Contaminant Level
Health-Based Health Resolved Jul 2009
Feb 1991 Resolved
Coliform (TCR)
Monitoring & Reporting
Monitoring & Reporting Resolved Feb 1991
Industrial pollution

Top industrial polluters within 10 miles of Oyster Creek

Industrial polluters nearby

Reported releases to surface water by facilities near Oyster Creek, ranked by pounds discharged annually.

Total reported releases to surface water: 1,009,346 lbs

FacilityTop chemicalTo surface water (lbs/yr)Distance
BASF CORP - FREEPORT SITE
Chemicals · BASF CORP
FREEPORT, TX77541
Nitrate compounds (water dissociable; reportable only when in aqueous solution)905,4063.9 mi
DOW CHEMICAL CO FREEPORT FACILITY
Chemicals · DOW INC
FREEPORT, TX775413257
Ammonia84,8483.1 mi
GLADIEUX METALS RECYCLING LLC
Primary Metals · NA
FREEPORT, TX77541
Molybdenum trioxide8,3683.0 mi
VENCOREX US INC
Chemicals · VENCOREX HOLDING
FREEPORT, TX77541
Nitrate compounds (water dissociable; reportable only when in aqueous solution)6,8682.3 mi
HUNTSMAN ETHYLENEAMINES PLANT
Chemicals · HUNTSMAN CORP
FREEPORT, TX77541
Ammonia3,8563.0 mi

Source: EPA Toxic Release Inventory (TRI) 2023

Site context

Superfund sites within 10 miles of Oyster Creek

Superfund sites nearby

Federally tracked hazardous-waste sites on the EPA National Priorities List. Proximity does not necessarily indicate tap-water contamination — the connection depends on hydrology and treatment.

Source: EPA Superfund National Priorities List

Environmental Risk

Drought conditions

D2 — severe drought

Brazoria County is currently in D2 (severe 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.

14
Weeks at D2+ (current streak)
16.3%
Months in D2+ (last 30y)
14
Weeks at D2+ (last 5y)

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

Environmental Risk

Flood & disaster history

10
Declared disasters
Jul 2024
Most recent
Hurricane
Most common type

Brazoria County has experienced 10 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
Aug 2020
TROPICAL STORMS MARCO AND LAURA
Hurricane FEMA #3540
Jul 2020
HURRICANE HANNA
Hurricane FEMA #3530
Aug 2017
HURRICANE HARVEY
Hurricane FEMA #4332
Jun 2016
SEVERE STORMS AND FLOODING
Flood FEMA #4272
Sep 2008
HURRICANE IKE
Hurricane FEMA #1791

Full contaminants report

Contaminant Detected Level EPA Limit Unit Category Status
Lead (90th percentile) 0.6 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 0.4 ppb from 1994 (1.0 ppb) to 2024 (0.6 ppb).
Contaminant Rankings

See how Oyster Creek compares by contaminant

Explore where Oyster Creek ranks among all Texas cities for specific contaminants.

Infrastructure

Water source & infrastructure

Primary Source
Purchased Surface Water
Operator
Local Government
Population Served
1,701
Water Systems
1
Water Source

Where Oyster Creek's water comes from

Purchased Surface Water

Oyster Creek's drinking water comes primarily from surface water sources such as rivers, lakes, or reservoirs.

Surface water systems require multi-stage treatment including coagulation, sedimentation, filtration, and disinfection to meet EPA Safe Drinking Water Act standards.

These sources can be impacted by seasonal changes, stormwater runoff, upstream agriculture, and industrial discharge.

The system is operated by local government ownership and serves approximately 1,701 people through 1 water system.

Local Hydrology

Water bodies near Oyster Creek

Oyster Creek is located near 5 notable water bodies. As a surface water system, these water bodies may directly influence the city's drinking water supply.

Bastrop Bayou At Cr 288 Nr Lake Jackson
river
Oyster Ck At Cr 290 Nr Angleton
river
Oyster Ck At Fm 2004 Nr Lake Jackson
stream
Old Brazos Rv Nr Freeport
stream
Brazos Rv At Giww Flood Gates Nr Freeport
stream
Infrastructure

Water systems serving Oyster Creek

System Name PWSID Population Source
CITY OF OYSTER CREEK TX0200230 1,701 SWP
Regional Comparison

How Oyster Creek compares

Full Texas rankings →

Oyster Creek's score of 75.7/100 is above the average of 46/100 among major Texas cities. It outscores 8 of 10 nearby cities.

Oyster Creek (this city)
75.7
Houston
27.8
Austin
31.2
Dallas
36.2
Fort Worth
34.5
Texas avg
46
City Profile

About Oyster Creek, TX

Wikipedia →

Oyster Creek is a city in Brazoria County, Texas, United States. Its population was 1,173 at the 2020 census.

Economic Profile
$38,750
Median Income
$188,973
Median Home Value
$967/mo
Median Rent
7.5%
Unemployment
Community
47.2
Median Age
247
People / sq mi
3.5%
College Educated
78.5%
Homeownership
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Frequently asked questions

Is Oyster Creek, TX tap water safe to drink?

Oyster Creek's water quality earned a grade of B (75.7/100). Some concerns have been identified. Consider a water filter for an extra layer of protection. The city ranks #482 out of 1067 cities tested in Texas.

What contaminants are in Oyster Creek's water?

Lead was measured at 0.6 ppb (90th percentile). 19 violations are on record.

How is Oyster Creek'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 Oyster Creek?

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

Where does Oyster Creek's water come from?

Oyster Creek's water is sourced from Purchased surface water. The city has 1 water system serving approximately 1,701 residents.

What health violations has Oyster Creek's water system had?

Oyster Creek has 8 health-based violations on record. The most recent violation was recorded in May 2025. Health-based violations mean the water exceeded EPA maximum contaminant levels (MCLs) for a regulated substance. 9 violations remain unresolved.

How does Oyster Creek's water compare to other cities?

Oyster Creek ranks #482 out of 1067 cities in Texas (better than 55% of state cities) and #9512 out of 15744 cities nationally (40th percentile). The grade of B reflects the combined assessment of violation history, lead and copper levels, PFAS contamination, and regulatory compliance.

Does Oyster Creek's small water system affect quality?

Oyster Creek's system serves approximately 1,701 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 19 violations on record.