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PWS ID	TX1700003
PWS Name	CITY OF WILLIS
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	9867
County Served	Montgomery

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
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	453	Open	06-NOV-2025	-	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	451	Open	13-SEP-2025	-	No
MCL	Maximum Contaminant Level Violation, E. coli (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	450	Returned to Compliance	01-SEP-2025	30-SEP-2025	Yes
Other	Consumer Confidence Report Inadequate Reporting	Consumer Confidence Rule	Consumer Confidence Rule	454	Open	01-JUL-2025	-	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	426	Returned to Compliance	01-OCT-2024	-	No
MR	Monitoring, Source Water (GWR)	Ground Water Rule	E. COLI	424	Returned to Compliance	28-JUN-2024	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	383	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	377	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	386	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	402	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	399	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	398	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	373	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	372	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	371	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb	393	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	392	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfone	391	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Aldicarb sulfoxide	390	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	397	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	396	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	389	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	395	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	381	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	380	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	379	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	374	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	401	Known	01-JAN-2021	31-DEC-2023	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	400	Known	01-JAN-2021	31-DEC-2023	No
Other	Public Notification Violation for NPDWR Violation	Public Notice Rule and Revised PN Rule	Public Notice	203	Returned to Compliance	01-JUN-2003	-	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	103	Returned to Compliance	01-FEB-2003	28-FEB-2003	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	1059794	Known	01-DEC-1993	31-DEC-1993	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	1059894	Known	01-OCT-1993	31-OCT-1993	No
Other	Notification, Public	Total Coliform Rule	Coliform (TCR)	4085293	Known	01-SEP-1993	30-SEP-1993	No
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	4085193	Known	01-SEP-1993	30-SEP-1993	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	191	Known	01-JUL-1991	31-JUL-1991	No

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Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
20110177	454	SIA	State Violation/Reminder Notice	31-DEC-2025	State	-
20110172	453	SIA	State Violation/Reminder Notice	03-DEC-2025	State	-
20110171	450	SOX	State Compliance achieved	13-NOV-2025	State	SOX’D SEPTEMBER 2025 VIOLATION BECAUSE THE PWS FULFILLED OCTOBER 2025 COLIFORM SAMPLE REQUIREMENTS.
20110169	451	SIA	State Violation/Reminder Notice	08-OCT-2025	State	-
20110170	426	SOX	State Compliance achieved	03-OCT-2025	State	YR2025 SAMPLING COMPLETED - GM 10/10/2025
20110168	424	SFJ	State Formal Notice of Violation issued	26-SEP-2025	State	-
20110121	103	SOX	State Compliance achieved	07-AUG-2015	State	TCR RTC TOOL
20110120	203	SOX	State Compliance achieved	20-JAN-2011	State	Administrative Cleanup - RTC Via MTS January 2011. PN Violations RTCd if originating violation was RTC.
194	4085193	EFJ	Federal issued Formal Notice of Violation	21-APR-1994	ODSWeb	-
194	1059794	EFJ	Federal issued Formal Notice of Violation	21-APR-1994	ODSWeb	-
194	1059894	EFJ	Federal issued Formal Notice of Violation	21-APR-1994	ODSWeb	-
194	4085293	EFJ	Federal issued Formal Notice of Violation	21-APR-1994	ODSWeb	-
194	191	EFJ	Federal issued Formal Notice of Violation	21-APR-1994	ODSWeb	-

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
EMERGENCY GW I/C WITH CONROE	65289	Yes	Consecutive Connection	Ground water	Emergency	Active
3 - PLUGGED	23862	Yes	Well	Ground water	Permanent	Inactive
1 - PLUGGED	23860	Yes	Well	Ground water	Permanent	Inactive
4 - 101 PERKINS	98933	Yes	Well	Ground water	Permanent	Active
2 - 200 S BELL	23861	Yes	Well	Ground water	Permanent	Active
7 - S BELL	115663	Yes	Well	Ground water	Permanent	Active
6 - LIVE OAK TRL	115662	Yes	Well	Ground water	Permanent	Active
5 - 9637 LIVE OAK TRL	114068	Yes	Well	Ground water	Permanent	Active
DUPLICATE ENTRY - DELETE	99042	Yes	Well	Ground water	Other	Inactive
DISTRIBUTION SYSTEM	43750	No	Distribution System/Zone	-	-	Active
101 PERKINS - 500 GPM - SP	69963	No	Pump Facility	-	-	Active
200 S BELL - 400 GPM - SP	69964	No	Pump Facility	-	-	Active
200 S BELL - 400 GPM - SP	69965	No	Pump Facility	-	-	Active
200 S BELL - 400 GPM - SP	69966	No	Pump Facility	-	-	Active
101 PERKINS - 500 GPM - SP	69967	No	Pump Facility	-	-	Active
101 PERKINS - 500 GPM - SP	69968	No	Pump Facility	-	-	Active
9637 LIVE OAK TRL - EST	114070	No	Sampling Station	-	-	Active
200 S BELL ST; WILLIS	138589	No	Sampling Station	-	-	Active
PERKINS; WILLIS	138590	No	Sampling Station	-	-	Active
9637 LIVE OAK TRL - EST	138591	No	Sampling Station	-	-	Active
PERKINS, WILLIS	56326	No	Sampling Station	-	-	Active
200 S BELL ST, WILLIS	56327	No	Sampling Station	-	-	Active
9637 LIVE OAK TRAIL - 0.3 MG - EL	117224	No	Storage	-	-	Active
200 S BELL - 0.010 MG - HD	127880	No	Storage	-	-	Active
200 S BELL - 0.010 MG - HD	127881	No	Storage	-	-	Active
101 PERKINS - 0.075 MG - EL	87096	No	Storage	-	-	Active
101 PERKINS - 0.125 MG - GR	87097	No	Storage	-	-	Active
101 PERKINS - 0.005 MG - HD	87134	No	Storage	-	-	Active
101 PERKINS - 0.01 MG - HD	87136	No	Storage	-	-	Active
200 S BELL - 0.210 MG - GR	87137	No	Storage	-	-	Active
200 S BELL - 0.05 MG - EL	87135	No	Storage	-	-	Inactive
PLANT 3 - LIVE OAK TRL	114069	No	Treatment Plant	-	-	Active
PLANT 2 - 101 PERKINS	2880	No	Treatment Plant	-	-	Active
PLANT 1 - 202 S BELL	2881	No	Treatment Plant	-	-	Active

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
PLANT 3 - LIVE OAK TRL	114069	Hypochlorination, Pre	Disinfection
PLANT 3 - LIVE OAK TRL	114069	Inhibitor, Polyphosphate	Corrosion control
PLANT 2 - 101 PERKINS	2880	Inhibitor, Polyphosphate	Corrosion control
PLANT 2 - 101 PERKINS	2880	Gaseous Chlorination, Pre	Disinfection
PLANT 1 - 202 S BELL	2881	Inhibitor, Polyphosphate	Corrosion control
PLANT 1 - 202 S BELL	2881	Gaseous Chlorination, Pre	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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