F0/100

GARY WSC — Water Quality Report 2026

Serving 1,050 people · Texas

Water Source

Groundwater

County

—

System ID

TX1830008

Violations

138

Contaminant Test Results

2 contaminants above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Copper (90th percentile)	2.60 mg/L	1.30 mg/L	1.30 mg/L	Over Limit
Lead (90th percentile)	0.003 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: July 30, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2025 – September 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Unresolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: May 15, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2025 – June 30, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Unresolved

Failed Level 2 Assessment under Revised Total Coliform Rule

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: April 1, 2025 – June 30, 2025Rule: Stage 1 DBPRVerify on EPA.gov

TIER 3Unresolved

Disinfection byproduct treatment technique failure

When: March 8, 2025Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 2Unresolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2025 – March 31, 2025Rule: Stage 2 DBPREnforcement: Formal — state order issuedVerify on EPA.gov

TIER 3Resolved

Reporting violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 17, 2024 – April 22, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Treatment technique violation

When: October 17, 2024 – April 22, 2025Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Failed to issue ongoing public notification

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: October 1, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: July 24, 2024 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – September 26, 2024Enforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2024 – June 30, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 15, 2024 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2024 – March 31, 2024Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: November 22, 2023 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: September 22, 2023 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 2 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: September 6, 2023 – March 11, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2023 – September 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: June 22, 2023 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2023 – June 30, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 16, 2023 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: March 16, 2023 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Failed to conduct Level 2 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: February 15, 2023 – March 11, 2024Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2023 – March 31, 2023Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: December 22, 2022 – September 26, 2024Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: October 1, 2022 – December 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: July 1, 2022 – September 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: April 2, 2022 – June 29, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: April 1, 2022 – June 30, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Failed to conduct Level 2 Assessment

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: March 15, 2022 – July 14, 2022Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway

TIER 2Resolved

Exceeded the Maximum Contaminant Level (running average)

When: January 1, 2022 – March 31, 2022Rule: Stage 2 DBPREnforcement: Formal — state order issued

TIER 3Resolved

Monitoring / Reporting Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: December 30, 2021 – July 11, 2022Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: July 1, 2021 – July 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: June 1, 2021 – June 30, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Monitoring Violation

This is a paperwork/process violation — it does not mean a contaminant was detected at unsafe levels.

When: May 1, 2021 – May 31, 2021Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Disinfection byproduct treatment technique failure

When: April 18, 2021 – August 13, 2021Rule: Ground Water RuleEnforcement: Resolving — corrective action underway

Understanding violation severity

Tier 1Urgent health risk. Utility must notify all customers within 24 hours.Tier 2Important health or treatment issue. Customers notified within 30 days.Tier 3Administrative or monitoring issue. Reported in the annual water quality report.

Source: EPA Safe Drinking Water Information System (SDWIS) · Updated quarterly

Frequently Asked Questions About GARY WSC

Is GARY WSC water safe to drink?

GARY WSC water receives a grade of F (0/100), which is considered failing. 1 contaminant(s) exceed EPA legal limits and 138 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has GARY WSC detected?

2 contaminants were tested in GARY WSC's water. Notable contaminants include Copper (90th percentile), Lead (90th percentile). 1 exceed EPA legal limits (MCLs). 2 exceed EPA health goals (MCLGs).

Does GARY WSC have any EPA violations?

Yes, GARY WSC has 138 EPA violation(s) on record, with the most recent in 2025. Violation types include Other, MCL, MR. 68 are health-based violations.

How many people does GARY WSC serve?

GARY WSC serves approximately 1,050 people, Texas.

What type of water does GARY WSC provide?

GARY WSC sources its water from groundwater. Groundwater is pumped from underground aquifers, which often provides natural filtration. The utility's system ID is TX1830008.

How does GARY WSC compare to other utilities in Texas?

GARY WSC scores 0/100 with a grade of F (failing). This score suggests significant water quality concerns relative to other utilities. Visit our Texas state page for a full comparison of water systems.