D35/100

CATTARAUGUS CWS — Water Quality Report 2026

Serving 4,999 people · New York

Water Source

Purchased Surface Water

County

—

System ID

020000008

Violations

Contaminant Test Results

1 contaminant above EPA health goals

Contaminant	Detected	Limit (MCL)	Goal (MCLG)	Status
Lead (90th percentile)	0.001 mg/L	0.015 mg/L	0 mg/L	Above Goal

EPA Violation History

Violations (last 5yr)

Unresolved

Health-Related

TIER 3Unresolved

Monitoring Violation

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

When: September 1, 2025 – September 30, 2025Rule: Total Coliform RuleVerify 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: July 1, 2025 – September 30, 2025Rule: Stage 1 DBPRVerify on EPA.gov

TIER 3Unresolved

Monitoring Violation

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

When: July 1, 2025 – July 31, 2025Rule: Total Coliform RuleVerify on EPA.gov

TIER 3Resolved

Monitoring violation

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

When: March 1, 2025 – June 25, 2025Rule: 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: February 1, 2025 – February 28, 2025Rule: 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: January 1, 2025 – June 25, 2025Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

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: January 1, 2025 – March 31, 2025Rule: Stage 1 DBPREnforcement: 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: September 1, 2024 – December 23, 2024Rule: 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: August 1, 2024 – December 23, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – December 23, 2024Enforcement: 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, 2024 – September 24, 2024Rule: 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: April 1, 2024 – September 24, 2024Rule: 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: February 1, 2024 – June 17, 2024Rule: 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: January 1, 2024 – June 17, 2024Rule: Total Coliform RuleEnforcement: Resolving — corrective action underway

TIER 3Unresolved

Exceeded the MCL for disinfection byproducts

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

When: January 1, 2024 – December 31, 2024Verify on EPA.gov

TIER 3Resolved

Monitoring violation

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

When: December 1, 2023 – December 21, 2023Rule: 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: November 1, 2023 – December 21, 2023Rule: 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: September 1, 2023 – December 21, 2023Rule: 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: August 1, 2023 – December 21, 2023Rule: 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: January 1, 2023 – June 15, 2023Rule: 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: December 1, 2022 – December 31, 2022Rule: 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: November 1, 2022 – November 30, 2022Rule: 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: October 1, 2022 – June 15, 2023Rule: 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: September 1, 2022 – June 19, 2018Rule: 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: August 1, 2022 – June 19, 2018Rule: 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: November 1, 2021 – March 11, 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: September 1, 2021 – December 7, 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: September 1, 2021 – September 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: August 1, 2021 – December 8, 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: July 1, 2021 – December 8, 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

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 CATTARAUGUS CWS

Is CATTARAUGUS CWS water safe to drink?

CATTARAUGUS CWS water receives a grade of D (35/100), which is considered poor. 0 contaminant(s) exceed EPA legal limits and 58 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has CATTARAUGUS CWS detected?

34 contaminants were tested in CATTARAUGUS CWS's water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does CATTARAUGUS CWS have any EPA violations?

Yes, CATTARAUGUS CWS has 58 EPA violation(s) on record, with the most recent in 2025. Violation types include MON, MR, RPT. 1 are health-based violations.

How many people does CATTARAUGUS CWS serve?

CATTARAUGUS CWS serves approximately 4,999 people, New York.

What type of water does CATTARAUGUS CWS provide?

CATTARAUGUS CWS sources its water from purchased surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is 020000008.

How does CATTARAUGUS CWS compare to other utilities in New York?

CATTARAUGUS CWS scores 35/100 with a grade of D (poor). This score suggests significant water quality concerns relative to other utilities. Visit our New York state page for a full comparison of water systems.