TapScore USA

DERBY ING EPA Drinking Water Compliance Record

TapScore summarizes EPA Safe Drinking Water Information System records for public water system TX0820016. It does not test household tap water or determine whether water is currently safe to drink.

C

Some recent records

TapScore compliance-history grade

14 EPA violation records from July 1, 2021 through June 30, 2026

System details

PWSID
TX0820016
Population served
174
Water source
Ground Water
Owner type
Local Government
State
Texas
EPA region
6
All historical records
62
Not marked resolved
13

How to read this grade

Grade C means “Some recent records” under TapScore's published method. It is a comparison of recent EPA compliance records, not an EPA grade, laboratory result, health recommendation, or guarantee of present water quality.

EPA contaminant categories in violation records

EPA categoryClassificationRecords
Lead and Copper RuleMonitoring/reporting record5
Consumer Confidence RuleMonitoring/reporting record4
CHLOROBENZENEMonitoring/reporting record3
Vinyl chlorideMonitoring/reporting record2
1,1,2-TrichloroethaneMonitoring/reporting record2
Public NoticeMonitoring/reporting record2
Radium-226Monitoring/reporting record2
Tetrachloroethylene (PCE)Monitoring/reporting record2
Carbon tetrachlorideMonitoring/reporting record2
BenzeneMonitoring/reporting record2
TolueneMonitoring/reporting record2
NitrateMonitoring/reporting record2
Aldicarb sulfoneMonitoring/reporting record1
EndrinMonitoring/reporting record1
o-DichlorobenzeneMonitoring/reporting record1
Gross AlphaMonitoring/reporting record1
ThalliumMonitoring/reporting record1
Thallium, TotalMonitoring/reporting record1
Beryllium, TotalMonitoring/reporting record1
ChromiumMonitoring/reporting record1

Showing the 20 categories with the most records out of 43 categories in this system's history.

These are compliance records associated with an EPA contaminant code, not current tap-water test results or proof that a substance is presently detected.

Violation history by year

2025
1
2023
8
2022
5
2020
5
2019
1
2016
2
2010
1
2008
1
2006
1
2004
13

Historical counts may include resolved records. For current notices and local sampling results, check the utility's latest Consumer Confidence Report and your state drinking-water agency.

Reported service area

Cities served

BARKER

ZIP codes served

77413

County: Frio