TX0150040 · Texas

ATASCOSA RURAL WSC

Federal fiscal 2026Q3 · EPA violation and follow-up records

Violation records shown: 31
EPA health-based flag: 12
Health-based records unresolved in this snapshot: 0
Monitoring and reporting records: 7

Counties listed by EPA · Bexar County, Texas

Find the utility’s annual water quality report. For current advisories, check the utility or local drinking-water authority.

Violations and what followed

Among 28 resolved records with both dates, the median interval from recorded noncompliance start to EPA’s return-to-compliance date was 90 days. The interval uses the reporting periods and dates on file.

Monitoring or reporting · Resolved

Monitoring, Routine (RTCR)Violation 413 · Revised Total Coliform Rule · Revised Total Coliform Rule

Noncompliance period start January 1, 2026 · period end January 31, 2026 · first reported June 26, 2026 · EPA return-to-compliance field January 31, 2026

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
128	March 9, 2026	Informal	State Violation/Reminder Notice
129	March 9, 2026	Informal	State Public Notification requested
130	March 12, 2026	Resolving	State Compliance achieved
133	March 24, 2026	Informal	State Public Notification received

Monitoring or reporting · Resolved
Lead Consumer NoticeViolation 412 · Lead and Copper Rule · Lead and Copper Rule
Noncompliance period start December 30, 2025 · period end March 17, 2026 · first reported March 31, 2026 · EPA return-to-compliance field March 17, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
127 February 23, 2026 Informal State Violation/Reminder Notice
131 March 17, 2026 Resolving State Compliance achieved
Other or unclassified · Resolved
Consumer Confidence Report Inadequate ReportingViolation 405 · Consumer Confidence Rule · Consumer Confidence Rule
Noncompliance period start July 1, 2025 · period end January 21, 2026 · first reported March 31, 2026 · EPA return-to-compliance field January 21, 2026

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
126 December 31, 2025 Informal State Violation/Reminder Notice
125 January 21, 2026 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
127	February 23, 2026	Informal	State Violation/Reminder Notice
131	March 17, 2026	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
126	December 31, 2025	Informal	State Violation/Reminder Notice
125	January 21, 2026	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 404 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start April 1, 2025 · period end June 30, 2025 · first reported March 31, 2026 · EPA return-to-compliance field June 30, 2025

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
122	October 20, 2025	Informal	State Violation/Reminder Notice
123	October 20, 2025	Informal	State Public Notification requested
124	November 25, 2025	Resolving	State Compliance achieved

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 403 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start January 1, 2025 · period end March 31, 2025 · first reported March 31, 2026 · EPA return-to-compliance field March 31, 2025

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
119	July 28, 2025	Informal	State Violation/Reminder Notice
120	July 28, 2025	Informal	State Public Notification requested
121	August 11, 2025	Informal	State Public Notification received
124	November 25, 2025	Resolving	State Compliance achieved

Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 392 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start February 2, 2024 · first reported May 16, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
115 February 23, 2024 Informal State Violation/Reminder Notice
Other or unclassified · Unaddressed by formal action
Public Notification Violation for NPDWR ViolationViolation 391 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start February 2, 2024 · first reported May 16, 2024

1 linked action

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
114 February 23, 2024 Informal State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
115	February 23, 2024	Informal	State Violation/Reminder Notice

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
114	February 23, 2024	Informal	State Violation/Reminder Notice

Monitoring or reporting · Archived

Monitoring, RegularViolation 396 · Nitrite · Nitrate Rule

Noncompliance period start January 1, 2024 · period end December 31, 2024 · first reported May 14, 2025 · EPA return-to-compliance field December 31, 2024

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
117	April 23, 2025	Informal	State Violation/Reminder Notice
118	April 23, 2025	Informal	State Public Notification requested
132	April 7, 2026	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 379 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 21, 2023 · period end June 9, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
87 May 8, 2023 Informal State Violation/Reminder Notice
94 June 9, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 378 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start April 21, 2023 · period end June 9, 2023 · first reported August 14, 2023 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
86 May 8, 2023 Informal State Violation/Reminder Notice
92 June 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
87	May 8, 2023	Informal	State Violation/Reminder Notice
94	June 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
86	May 8, 2023	Informal	State Violation/Reminder Notice
92	June 9, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 387 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported December 21, 2023 · EPA return-to-compliance field June 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
109	November 3, 2023	Informal	State Violation/Reminder Notice
110	November 3, 2023	Informal	State Public Notification requested
111	November 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 386 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2023 · period end June 30, 2023 · first reported December 21, 2023 · EPA return-to-compliance field June 30, 2023

3 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
107	November 3, 2023	Informal	State Violation/Reminder Notice
108	November 3, 2023	Informal	State Public Notification requested
112	November 10, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 376 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start March 16, 2023 · period end June 9, 2023 · first reported May 16, 2023 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
84 April 4, 2023 Informal State Violation/Reminder Notice
96 June 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
84	April 4, 2023	Informal	State Violation/Reminder Notice
96	June 9, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 380 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2023 · period end March 31, 2023 · first reported June 27, 2023 · EPA return-to-compliance field March 31, 2023

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued
88	June 6, 2023	Informal	State Violation/Reminder Notice
89	June 6, 2023	Informal	State Public Notification requested
91	June 9, 2023	Informal	State Public Notification received
111	November 10, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 375 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start November 3, 2022 · period end June 9, 2023 · first reported February 15, 2023 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
82 February 6, 2023 Informal State Violation/Reminder Notice
98 June 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
82	February 6, 2023	Informal	State Violation/Reminder Notice
98	June 9, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 373 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
78	January 20, 2023	Informal	State Violation/Reminder Notice
79	January 20, 2023	Informal	State Public Notification requested
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued
93	June 9, 2023	Informal	State Public Notification received
111	November 10, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 372 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2022 · period end December 31, 2022 · first reported February 15, 2023 · EPA return-to-compliance field December 31, 2022

5 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
76	January 20, 2023	Informal	State Violation/Reminder Notice
77	January 20, 2023	Informal	State Public Notification requested
83	March 31, 2023	Resolving	State Compliance achieved
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued
95	June 9, 2023	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 368 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 12, 2022 · period end June 9, 2023 · first reported August 15, 2022 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
70 August 3, 2022 Informal State Violation/Reminder Notice
100 June 9, 2023 Resolving State Compliance achieved
Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 367 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start July 12, 2022 · period end June 9, 2023 · first reported August 15, 2022 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
71 August 3, 2022 Informal State Violation/Reminder Notice
102 June 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
70	August 3, 2022	Informal	State Violation/Reminder Notice
100	June 9, 2023	Resolving	State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
71	August 3, 2022	Informal	State Violation/Reminder Notice
102	June 9, 2023	Resolving	State Compliance achieved

Other or unclassified · Resolved

Consumer Confidence Report Complete Failure to ReportViolation 374 · Consumer Confidence Rule · Consumer Confidence Rule

Noncompliance period start July 1, 2022 · period end October 3, 2023 · first reported February 15, 2023 · EPA return-to-compliance field October 3, 2023

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
80	January 25, 2023	Informal	State Violation/Reminder Notice
81	January 25, 2023	Informal	State Violation/Reminder Notice
90	May 19, 2023	Informal	State Violation/Reminder Notice
106	October 3, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 371 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2022 · period end September 30, 2022 · first reported January 18, 2023 · EPA return-to-compliance field September 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
74	December 15, 2022	Informal	State Violation/Reminder Notice
75	December 15, 2022	Informal	State Public Notification requested
83	March 31, 2023	Resolving	State Compliance achieved
97	June 9, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 366 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2022 · period end June 30, 2022 · first reported August 15, 2022 · EPA return-to-compliance field June 30, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
72	August 4, 2022	Informal	State Violation/Reminder Notice
73	August 4, 2022	Informal	State Public Notification requested
83	March 31, 2023	Resolving	State Compliance achieved
99	June 9, 2023	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 361 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start January 27, 2022 · period end June 9, 2023 · first reported March 31, 2022 · EPA return-to-compliance field June 9, 2023

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
65 February 24, 2022 Informal State Violation/Reminder Notice
104 June 9, 2023 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
65	February 24, 2022	Informal	State Violation/Reminder Notice
104	June 9, 2023	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 363 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2022 · period end March 31, 2022 · first reported June 17, 2022 · EPA return-to-compliance field March 31, 2022

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
66	April 12, 2022	Informal	State Violation/Reminder Notice
67	April 12, 2022	Informal	State Public Notification requested
83	March 31, 2023	Resolving	State Compliance achieved
101	June 9, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 362 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start October 1, 2021 · period end December 31, 2021 · first reported June 17, 2022 · EPA return-to-compliance field December 31, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
68	April 12, 2022	Informal	State Violation/Reminder Notice
69	April 12, 2022	Informal	State Public Notification requested
83	March 31, 2023	Resolving	State Compliance achieved
103	June 9, 2023	Informal	State Public Notification received

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 359 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start July 1, 2021 · period end September 30, 2021 · first reported November 16, 2021 · EPA return-to-compliance field September 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
62	October 28, 2021	Informal	State Violation/Reminder Notice
63	October 28, 2021	Informal	State Public Notification requested
64	November 12, 2021	Informal	State Formal Notice of Violation issued
83	March 31, 2023	Resolving	State Compliance achieved
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued
105	June 9, 2023	Informal	State Public Notification received

Monitoring or reporting · Resolved

Monitoring, Source Water (GWR)Violation 351 · E. COLI · Ground Water Rule

Noncompliance period start May 19, 2021 · period end August 10, 2021 · first reported August 23, 2021 · EPA return-to-compliance field August 10, 2021

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
40	August 3, 2021	Informal	State Violation/Reminder Notice
41	August 3, 2021	Informal	State Public Notification requested
51	August 10, 2021	Resolving	State Compliance achieved
61	August 25, 2021	Informal	State Public Notification received

Other or unclassified · Resolved
Public Notification Violation for NPDWR ViolationViolation 356 · Public Notice · Public Notice Rule and Revised PN Rule
Noncompliance period start May 16, 2021 · period end August 27, 2021 · first reported September 29, 2021 · EPA return-to-compliance field August 27, 2021

2 linked actions

Enforcement and resolution records linked by EPA
Action ID Date Category EPA action type
50 August 5, 2021 Informal State Violation/Reminder Notice
55 August 27, 2021 Resolving State Compliance achieved

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
50	August 5, 2021	Informal	State Violation/Reminder Notice
55	August 27, 2021	Resolving	State Compliance achieved

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 357 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start April 1, 2021 · period end June 30, 2021 · first reported September 29, 2021 · EPA return-to-compliance field June 30, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
52	August 17, 2021	Informal	State Violation/Reminder Notice
53	August 17, 2021	Informal	State Public Notification requested
54	August 24, 2021	Informal	State Public Notification received
64	November 12, 2021	Informal	State Formal Notice of Violation issued
83	March 31, 2023	Resolving	State Compliance achieved
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued

EPA health-based flag · Resolved

Maximum Contaminant Level Violation, AverageViolation 348 · Gross Alpha, Excl. Radon and U · Radionuclides and Revised Rad Rule

Noncompliance period start January 1, 2021 · period end March 31, 2021 · first reported May 17, 2021 · EPA return-to-compliance field March 31, 2021

6 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
38	April 15, 2021	Informal	State Violation/Reminder Notice
39	April 15, 2021	Informal	State Public Notification requested
56	August 24, 2021	Informal	State Public Notification received
64	November 12, 2021	Informal	State Formal Notice of Violation issued
83	March 31, 2023	Resolving	State Compliance achieved
85	April 17, 2023	Formal	State Administrative/Compliance Order without penalty issued

Monitoring or reporting · Resolved

Monitoring and Reporting (DBP)Violation 346 · Chlorine · Stage 1 Disinfectants and Disinfection Byproducts Rule

Noncompliance period start July 1, 2020 · period end September 30, 2020 · first reported February 22, 2021 · EPA return-to-compliance field September 30, 2020

4 linked actions

Enforcement and resolution records linked by EPA
Action ID	Date	Category	EPA action type
32	December 17, 2020	Informal	State Violation/Reminder Notice
33	December 17, 2020	Informal	State Public Notification requested
37	February 24, 2021	Informal	State Public Notification received
36	March 5, 2021	Resolving	State Compliance achieved

EPA data and scope

How to read the records

The enforcement snapshot is federal fiscal 2026Q3. The EPA archive labels its violation file October 13, 2026. EPA says federal reporting can lag by several months. For current advisories, check your utility or local drinking-water authority.

We matched active community water systems by public water system ID between EPA’s system search and SDWIS inventory. We show violations with a recorded noncompliance, initial reporting or return-to-compliance date from 2021 onward, plus earlier records listed as Addressed or Unaddressed.
EPA’s health-based flag identifies violations of contaminant or disinfectant limits or treatment requirements. Monitoring and reporting violations describe required tests or reports. Neither category measures household exposure.
Addressed means EPA records formal enforcement on a violation that remains unresolved in the snapshot. Unaddressed means no formal action is recorded for an unresolved violation. Resolved can mean compliance was restored, the rule ceased to apply, or further action was unnecessary. Archived is a separate status.
We count a violation once per water system and group its distinct linked actions. Conflicting records are set aside. Places are EPA-listed search locations and can include mailing locations. Use the provider name and system ID to identify your service.

EPA data dictionary and files · EPA reporting and enforcement FAQ · Find an annual water quality report · How to get the report from your utility