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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.

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Violations

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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
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	8107817	Returned to Compliance	01-JUL-2025	-	Yes
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	8107816	Returned to Compliance	01-JUN-2025	-	Yes
TT	Treatment Technique No Certif. Operator	Stage 1 Disinfectants and Disinfection Byproducts Rule	Stage 1 Disinfectants and Disinfection Byproducts Rule	8107815	Returned to Compliance	01-MAY-2025	-	Yes
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8107811	Returned to Compliance	01-JUL-2021	-	No
MR	Monitoring and Reporting (DBP)	Stage 1 Disinfectants and Disinfection Byproducts Rule	Chlorine	8107810	Returned to Compliance	01-OCT-2019	31-DEC-2019	No
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	8107809	Returned to Compliance	01-JAN-2009	31-JAN-2009	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	8107700	Returned to Compliance	19-OCT-1999	-	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	1V00	Returned to Compliance	19-OCT-1999	15-DEC-1999	No

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Enforcement Actions

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Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
322	8107816	SOX	State Compliance achieved	24-NOV-2025	State	-
322	8107815	SOX	State Compliance achieved	24-NOV-2025	State	-
322	8107817	SOX	State Compliance achieved	24-NOV-2025	State	-
313	8107700	SOX	State Compliance achieved	25-OCT-2021	State	-
313	8107811	SOX	State Compliance achieved	25-OCT-2021	State	-
312	8107810	SIF	State Public Notification received	04-DEC-2020	State	-
310	8107809	SOX	State Compliance achieved	19-FEB-2010	State	-
1E00	1V00	EOX	Federal Compliance achieved	15-DEC-1999	ODSWeb	-

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All Facilities

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Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
GRAND PRAIRIE WATER USER	3937	Yes	Consecutive Connection	Ground water	Emergency	Active
WELL #4 HWY 31	1727	Yes	Well	Ground water	Emergency	Active
WELL #2 CHERRYWOOD	1726	Yes	Well	Ground water	Emergency	Active
WELL #1 WTP OASIS RD	1725	Yes	Well	Ground water	Emergency	Active
LW MM #1 (E. MAIN STREET)	6525	Yes	Consecutive Connection	Surface water	Permanent	Active
LW MM #2 (STAGECOACH)	6526	Yes	Consecutive Connection	Surface water	Permanent	Active
WARD WATERWORKS	2925	No	Distribution System/Zone	-	-	Active
MAIN WTP - OASIS RD	78	No	Treatment Plant	-	-	Active
HWY 31 WTP	80	No	Treatment Plant	-	-	Active
WTP #4	6720	No	Treatment Plant	-	-	Inactive
WTP #5	6721	No	Treatment Plant	-	-	Inactive

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Treatment Processes

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Facility Name	Facility ID	Treatment Process	Treatment Objective
MAIN WTP - OASIS RD	78	Hypochlorination, Post	Disinfection
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Disinfection
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Iron removal
MAIN WTP - OASIS RD	78	Aeration, Slat Tray	Iron removal
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Iron removal
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Manganese removal
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Particulate removal
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Softening (hardness removal)
MAIN WTP - OASIS RD	78	Lime - Soda Ash Addition	Softening (hardness removal)
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Taste / odor control
MAIN WTP - OASIS RD	78	Aeration, Slat Tray	Taste / odor control
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Disinfection
MAIN WTP - OASIS RD	78	Hypochlorination, Post	Disinfection
MAIN WTP - OASIS RD	78	Lime - Soda Ash Addition	Softening (hardness removal)
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Iron removal
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Particulate removal
MAIN WTP - OASIS RD	78	pH Adjustment, Pre	Softening (hardness removal)
MAIN WTP - OASIS RD	78	Aeration, Slat Tray	Iron removal
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Iron removal
MAIN WTP - OASIS RD	78	Gaseous Chlorination, Pre	Manganese removal
HWY 31 WTP	80	Gaseous Chlorination, Post	Disinfection
HWY 31 WTP	80	Gaseous Chlorination, Post	Disinfection
HWY 31 WTP	80	pH Adjustment, Post	Softening (hardness removal)
HWY 31 WTP	80	pH Adjustment, Post	Softening (hardness removal)
HWY 31 WTP	80	pH Adjustment	Corrosion control

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