TapSafetyReport
C48/100

SOUTH DELAWARE CO REGIONAL WATER AUTH. — Water Quality Report 2026

Serving 1,500 people · Oklahoma

Water Source
Surface Water
County
—
System ID
OK1221645
Violations
37

Contaminant Test Results

1 contaminant above EPA health goals
ContaminantDetectedLimit (MCL)Status
Lead (90th percentile)
0.002 mg/L0.015 mg/LAbove Goal

EPA Violation History

12

Violations (last 5yr)

3

Unresolved

3

Health-Related

TIER 3Unresolved

Reporting violation

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

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
TIER 2Unresolved

Treatment technique violation

When: October 17, 2024Rule: Ground Water RuleEnforcement: Informal — resolved cooperativelyVerify on EPA.gov
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: August 1, 2024 – August 31, 2024Rule: Stage 1 DBPREnforcement: 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: August 1, 2024 – August 31, 2024Rule: Stage 1 DBPREnforcement: Resolving — corrective action underway
TIER 3Resolved

Surface water treatment technique failure

When: July 1, 2024 – July 15, 2024Enforcement: Resolving — corrective action underway
TIER 2Unresolved

Failed treatment technique requirements

When: March 1, 2024 – March 31, 2024Rule: Surface Water Treatment RuleEnforcement: Formal — state order issuedVerify on EPA.gov
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: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: 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: July 1, 2023 – September 30, 2023Rule: Stage 1 DBPREnforcement: 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, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: 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, 2023 – December 31, 2023Rule: Stage 2 DBPREnforcement: Resolving — corrective action underway
TIER 1 — URGENTResolved

Violation related to Nitrate

When: December 1, 2022 – December 31, 2022Rule: Surface Water Treatment RuleEnforcement: Formal — state order issued
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: October 1, 2022 – December 31, 2022Rule: Stage 1 DBPREnforcement: 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 SOUTH DELAWARE CO REGIONAL WATER AUTH.

Is SOUTH DELAWARE CO REGIONAL WATER AUTH. water safe to drink?

SOUTH DELAWARE CO REGIONAL WATER AUTH. water receives a grade of C (48/100), which is considered fair. 0 contaminant(s) exceed EPA legal limits and 37 violation(s) are on record. Customers may want to consider using a water filter.

What contaminants has SOUTH DELAWARE CO REGIONAL WATER AUTH. detected?

1 contaminants were tested in SOUTH DELAWARE CO REGIONAL WATER AUTH.'s water. Notable contaminants include Lead (90th percentile). No contaminants exceed EPA legal limits. 1 exceed EPA health goals (MCLGs).

Does SOUTH DELAWARE CO REGIONAL WATER AUTH. have any EPA violations?

Yes, SOUTH DELAWARE CO REGIONAL WATER AUTH. has 37 EPA violation(s) on record, with the most recent in 2024. Violation types include RPT, TT, MR. 3 are health-based violations.

How many people does SOUTH DELAWARE CO REGIONAL WATER AUTH. serve?

SOUTH DELAWARE CO REGIONAL WATER AUTH. serves approximately 1,500 people, Oklahoma.

What type of water does SOUTH DELAWARE CO REGIONAL WATER AUTH. provide?

SOUTH DELAWARE CO REGIONAL WATER AUTH. sources its water from surface water. Surface water comes from rivers, lakes, or reservoirs and typically requires more extensive treatment. The utility's system ID is OK1221645.

How does SOUTH DELAWARE CO REGIONAL WATER AUTH. compare to other utilities in Oklahoma?

SOUTH DELAWARE CO REGIONAL WATER AUTH. scores 48/100 with a grade of C (fair). This score indicates room for improvement compared to other utilities. Visit our Oklahoma state page for a full comparison of water systems.