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Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	TX0290065
PWS Name	PORT OCONNOR IMPROVEMENT DISTRICT
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	Yes
Population Served	1568
County Served	Calhoun

The tables below list all violations that the state reported to EPA for this water system. Health-based violations are listed first, followed by treatment technique, MRDL, monitoring, reporting, and other violations.

Health-based	Violations of maximum contaminant levels (MCLs) or maximum residual disinfectant levels (MRDLs), which specify the highest concentrations of contaminants or disinfectants, respectively, allowed in drinking water; or of treatment technique (TT) rules, which specify required processes intended to reduce the amounts of contaminants in drinking water. MCLs, MRDLs, and treatment technique rules are all health-based drinking water standards.
Maximum Contaminant Level or MCL	The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
Treatment Technique	A required process intended to reduce the level of a contaminant in drinking water.
Maximum residual disinfectant level or MRDL	The highest level of a disinfectant allowed in drinking water. There is convincing evidence that addition of a disinfectant is necessary for control of microbial contaminants.
Monitoring & reporting	Failure to conduct regular monitoring of drinking water quality, as required by SDWA, or to submit monitoring results in a timely fashion to the primacy agency or EPA.
Public notification & other	Failure to provide notification to the public as required by the Violations of Public Notification Rule and the Consumer Confidence Report Rule, and violations of other requirements such as those violations related to variances and exemptions.

Violations

Violation Category Code	Violation Type Description	Rule Name	Contaminant Name	Violation ID	Compliance Status Description	Compliance Period Begin Date	Compliance Period End Date	Is Health Based Ind
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90059452	Known	01-OCT-2025	31-DEC-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90059443	Returned to Compliance	01-OCT-2024	31-DEC-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90059441	Returned to Compliance	01-JUL-2024	30-SEP-2024	Yes
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90059435	Returned to Compliance	01-APR-2021	30-JUN-2021	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90059431	Returned to Compliance	30-DEC-2019	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	90059429	Returned to Compliance	01-NOV-2019	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90059428	Returned to Compliance	01-JAN-2019	31-MAR-2019	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	90059426	Returned to Compliance	01-OCT-2018	31-OCT-2018	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90059422	Returned to Compliance	30-DEC-2016	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90059421	Returned to Compliance	01-JUL-2016	30-SEP-2016	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	90059416	Returned to Compliance	01-OCT-2014	31-DEC-2014	Yes
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	90059405	Returned to Compliance	30-DEC-2013	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	90059404	Returned to Compliance	01-JAN-2011	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	90059403	Returned to Compliance	01-JUL-2010	-	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	90059401	Returned to Compliance	01-JAN-2010	31-JAN-2010	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	90059398	Returned to Compliance	01-OCT-2008	31-DEC-2008	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	207	Returned to Compliance	01-FEB-2007	-	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	107	Returned to Compliance	01-DEC-2006	31-DEC-2006	Yes

1 - 18 of 18

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
90098025	90059441	SOX	State Compliance achieved	17-APR-2025	State	20250417; ADAZA; 2 VIOLS SOX'D BASED ON TTHM DBP2- 01 1Q2025 LRAA
90098025	90059443	SOX	State Compliance achieved	17-APR-2025	State	20250417; ADAZA; 2 VIOLS SOX'D BASED ON TTHM DBP2- 01 1Q2025 LRAA
90098012	90059429	SOX	State Compliance achieved	01-NOV-2022	State	ADEQUATE PN RECEIVED 11/01/2021 - LAC
90098014	90059401	SIF	State Public Notification received	01-NOV-2022	State	-
90098013	90059426	SIF	State Public Notification received	01-NOV-2022	State	-
90098011	90059435	SOX	State Compliance achieved	20-DEC-2021	State	20211220. MMUNRO. SOX APPLIED DUE TO 3Q2021 DLQOR TURNED IN ON TIME WITH NO ISSUES.3Q2021 RECEIVED 10/12/21
90098005	90059431	SOX	State Compliance achieved	16-MAR-2020	State	-
90098002	90059428	SIF	State Public Notification received	05-SEP-2019	State	-
90097992	90059422	SOX	State Compliance achieved	08-FEB-2017	State	-
90097993	90059421	SOX	State Compliance achieved	10-JAN-2017	State	20470215. CBARRERA, 3Q2016 DLQOR VIOLTION RTC'd. 4Q2016 DLQOR WAS SUBMITTED ON TIME.
90097987	90059416	SOX	State Compliance achieved	08-MAY-2015	State	-
90097968	90059405	SOX	State Compliance achieved	06-MAR-2014	State	-
90097967	90059403	SOX	State Compliance achieved	07-NOV-2013	State	-
90097967	90059404	SOX	State Compliance achieved	07-NOV-2013	State	-
90097959	90059398	SOX	State Compliance achieved	04-AUG-2009	State	SUBMITTED DLQOR AND PUBLIC NOTICE
407	207	SIA	State Violation/Reminder Notice	01-FEB-2007	State	DEFAULT DATE, CHECK FILE FOR ACTUAL DATE OF NOV LETTER.
207	107	SIE	State Public Notification requested	02-JAN-2007	State	DEFAULT DATE, PUBLIC NOTICE REQUESTED IN NOV LETTER TO PWS.

1 - 17 of 17

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
SW FROM GBRA PORT LAVACA	34471	Yes	Consecutive Connection	Surface water	Other	Inactive
5 - SH 185 / TREVOR ST	167108	Yes	Well	Ground water	Permanent	Active
3 - SH 185 / ADAMS ST	166777	Yes	Well	Ground water	Permanent	Active
2 - HWY 185	114601	Yes	Well	Ground water	Permanent	Active
39 DENMAN RD	99027	Yes	Well	Ground water	Other	Inactive
1 - 16TH / HARRISON ST	28642	Yes	Well	Ground water	Emergency	Active
DISTRIBUTION SYSTEM	38728	No	Distribution System/Zone	-	-	Active
39 DENMAN DR - 850 GPM - SP	70925	No	Pump Facility	-	-	Active
39 DENMAN DR - 850 GPM - SP	70926	No	Pump Facility	-	-	Active
39 DENMAN DR - 850 GPM - SP	70927	No	Pump Facility	-	-	Active
39 DENMAN DR - 850 GPM - SP	70928	No	Pump Facility	-	-	Active
39 DENMAN DR; PORT OCONNOR	133648	No	Sampling Station	-	-	Active
39 DENMAN DR, PORT OCONNOR	48988	No	Sampling Station	-	-	Active
14192 HWY 185, PORT OCONNOR	114999	No	Sampling Station	-	-	Inactive
14192 HWY 185; PORT OCONNOR	133649	No	Sampling Station	-	-	Inactive
16TH ST / HARRISON ST - 0.250 MG - EL	88119	No	Storage	-	-	Active
39 DENMAN DR - 0.5 MG GST	88120	No	Storage	-	-	Active
PLANT - HWY 185 (BOOSTER)	115000	No	Treatment Plant	-	-	Active
PLANT - 39 DENMAN DR	8611	No	Treatment Plant	-	-	Active

1 - 19 of 19

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT - HWY 185 (BOOSTER)	115000	Gaseous Chlorination, Pre	Disinfection
PLANT - HWY 185 (BOOSTER)	115000	Chloramines	Disinfection
PLANT - 39 DENMAN DR	8611	Gaseous Chlorination, Pre	Disinfection
PLANT - 39 DENMAN DR	8611	Chloramines	Disinfection
PLANT - 39 DENMAN DR	8611	Reverse Osmosis	Particulate removal

1 - 5 of 5

For more information on a Water System:
Ask the operators of your water system, contact your primacy agency or file a Freedom of Information Act (FOIA) request.
Drinking water in general: Find out more about your drinking water web site or call the Safe Drinking Water Hotline (1-800-426-4791). EPA has also prepared a table about various regulated drinking water contaminants.
Tools for accessing EPA drinking water data: Safe Drinking Water Information System (SDWIS) Federal Reporting Services and Drinking Water Performance and Results Report.
Research Data: As well as monitoring the levels of drinking water contaminants for which EPA has set standards, EPA, states, and water systems also carry out studies of contaminants that may need to be regulated in the future. For more information about these contaminants, please see the National Contaminant Occurrence Database.

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