Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	MS0090005
PWS Name	CITY OF HOUSTON
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	3772
County Served	Chickasaw

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
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	6775	Returned to Compliance	01-APR-2024	30-JUN-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6777	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6776	Returned to Compliance	01-JAN-2024	31-DEC-2024	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	Total Haloacetic Acids (HAA5)	6774	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring and Reporting (DBP)	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	6773	Returned to Compliance	01-JAN-2023	31-DEC-2023	No
MR	Monitoring, Routine Major (TCR)	Total Coliform Rule	Coliform (TCR)	6765	Returned to Compliance	01-NOV-2013	30-NOV-2013	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	6766	Returned to Compliance	01-OCT-2013	31-DEC-2013	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6764	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6756	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6758	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6759	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6763	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6760	Returned to Compliance	01-APR-2012	30-JUN-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6754	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6751	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6750	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6749	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6753	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6752	Returned to Compliance	01-JAN-2012	31-MAR-2012	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6746	Returned to Compliance	01-OCT-2011	31-DEC-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6747	Returned to Compliance	01-OCT-2011	31-DEC-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6748	Returned to Compliance	01-OCT-2011	31-DEC-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6745	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6742	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6744	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6743	Returned to Compliance	01-JUL-2011	30-SEP-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6735	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6728	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6736	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6732	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6730	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6731	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6734	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6726	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6727	Returned to Compliance	01-APR-2011	30-JUN-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6714	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6716	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6724	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6720	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6718	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6722	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6723	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6715	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6719	Returned to Compliance	01-JAN-2011	31-MAR-2011	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6706	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6707	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6703	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-226	6711	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Uranium	6710	Returned to Compliance	01-OCT-2010	31-DEC-2010	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Radium-228	6708	Returned to Compliance	01-OCT-2010	31-DEC-2010	No

1 - 50 of 192

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
4928	6776	SOX	State Compliance achieved	30-JUL-2025	State	-
4928	6774	SOX	State Compliance achieved	30-JUL-2025	State	-
4928	6773	SOX	State Compliance achieved	30-JUL-2025	State	-
4928	6777	SOX	State Compliance achieved	30-JUL-2025	State	-
4925	6775	SOX	State Compliance achieved	01-OCT-2024	State	-
4920	6766	SOX	State Compliance achieved	31-MAR-2014	State	-
4919	6765	SIF	State Public Notification received	26-DEC-2013	State	-
4915	6759	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6760	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6763	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6764	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6758	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6756	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6754	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6753	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6752	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6751	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6749	SIF	State Public Notification received	16-JUL-2013	State	-
4915	6750	SIF	State Public Notification received	16-JUL-2013	State	-
4914	408	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	508	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	608	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	708	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	808	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	908	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1008	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1108	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1208	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1308	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1408	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1508	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1608	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1708	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1808	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	1908	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2008	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2108	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2208	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2308	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2408	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2508	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2608	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2708	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2808	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	2908	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	3008	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	3109	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	3209	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	3309	SOX	State Compliance achieved	13-AUG-2012	State	-
4914	3409	SOX	State Compliance achieved	13-AUG-2012	State	-

1 - 50 of 192

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL WL001	34348	Yes	Well	Ground water	Permanent	Active
WELL WL003	34350	Yes	Well	Ground water	Permanent	Active
WELL WL002	34349	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION DS000	37674	No	Distribution System/Zone	-	-	Active
STAGE 2 DBP	43388	No	Distribution System/Zone	-	-	Active
250K ELEVATED STORAGE TANK	41199	No	Storage	-	-	Active
250K ELEVATED STORAGE TANK	41200	No	Storage	-	-	Active
250K ELEVATED STORAGE TANK	41201	No	Storage	-	-	Active
200K ELEVATED STORAGE TANK	41202	No	Storage	-	-	Active
TREATMENT FACILITY TF101	31782	No	Treatment Plant	-	-	Active
TREATMENT FACILITY TF102	31783	No	Treatment Plant	-	-	Active
TREATMENT FACILITY TF103	31784	No	Treatment Plant	-	-	Active

1 - 12 of 12

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT FACILITY TF101	31782	Gaseous Chlorination, Post	Disinfection
TREATMENT FACILITY TF102	31783	Gaseous Chlorination, Post	Disinfection
TREATMENT FACILITY TF103	31784	Gaseous Chlorination, Post	Disinfection

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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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