Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	055295704
PWS Name	RIDGELAND
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	691
County Served

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	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	2845	Returned to Compliance	01-OCT-2025	-	No
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	2810	Returned to Compliance	01-AUG-2016	31-AUG-2016	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	1296	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	1596	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	196	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	396	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	1496	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	1896	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	1996	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	1196	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	296	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	1396	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	1696	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	1796	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	896	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	2196	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	1096	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	696	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	996	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	796	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	2096	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	496	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	596	Returned to Compliance	01-JAN-1996	31-DEC-1996	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2595	Returned to Compliance	01-JUL-1995	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2494	Returned to Compliance	01-JAN-1995	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2394	Returned to Compliance	01-JUL-1994	-	No
MR	Initial Tap Sampling for Pb and Cu	Lead and Copper Rule	Lead and Copper Rule	2293	Returned to Compliance	01-JAN-1994	-	No

1 - 27 of 27

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
599	2845	EOX	Federal Compliance achieved	15-NOV-2025	Region	-
597	2810	EOX	Federal Compliance achieved	08-SEP-2016	Region	-
396	1096	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	2196	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	2096	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1996	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	196	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	296	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	396	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	496	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	596	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	696	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	796	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	896	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	996	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1196	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1296	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1396	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1496	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1596	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1696	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1796	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
396	1896	EOX	Federal Compliance achieved	18-NOV-1997	Region	MM
596	2394	EOX	Federal Compliance achieved	22-MAR-1996	Region	-
596	2293	EOX	Federal Compliance achieved	22-MAR-1996	Region	-
596	2595	EOX	Federal Compliance achieved	22-MAR-1996	Region	-
596	2494	EOX	Federal Compliance achieved	22-MAR-1996	Region	-

1 - 27 of 27

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
RIDGELAND WL#1	1332	Yes	Well	Ground water	Permanent	Active
RIDGELAND WL#3	2069	Yes	Well	Ground water	Permanent	Active
RIDGELAND WL#2	1333	Yes	Well	Ground water	Permanent	Active
DISTRIBUTION SYSTEM	950	No	Distribution System/Zone	-	-	Active
SAMPLING SITE # 1	1863	No	Sampling Station	-	-	Active
SAMPLING SITE # 2	1864	No	Sampling Station	-	-	Active
ENTRY POINT #1	948	No	Sampling Station	-	-	Active
TREATMENT PLANT #1	140	No	Treatment Plant	-	-	Active

1 - 8 of 8

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREATMENT PLANT #1	140	Hypochlorination, Post	Disinfection

1 - 1 of 1

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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