Safe Drinking Water Information System (SDWIS) Federal Reporting Services

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PWS ID	084690475
PWS Name	PINE RIDGE WATER SYSTEM
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Ground water
Primacy Type	Tribal
Is Wholesaler?	Yes
Population Served	7482
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	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	72905	Returned to Compliance	30-DEC-2023	-	No
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Uranium	72898	Returned to Compliance	01-OCT-2019	31-DEC-2019	Yes
TT	Failure To Address Deficiency	Ground Water Rule	Groundwater Rule	72899	Returned to Compliance	24-JUL-2018	-	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	299	Known	01-JUN-1999	30-JUN-1999	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	199	Known	01-OCT-1998	31-OCT-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	298	Known	01-JUL-1998	31-JUL-1998	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	198	Known	01-APR-1998	30-APR-1998	Yes
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	31299	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	32099	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	30999	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	31899	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	31999	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	31399	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	30599	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Nitrate Rule	Nitrate	10099	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	31499	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	31199	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	31699	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	30199	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	31599	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	32199	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	30799	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	31099	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	30299	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	30699	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	30399	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	31799	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	30499	Known	01-JAN-1998	31-DEC-1998	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	30899	Known	01-JAN-1998	31-DEC-1998	No
MCL	Maximum Contaminant Level Violation, Acute (TCR)	Total Coliform Rule	Coliform (TCR)	798	Known	01-SEP-1997	30-SEP-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	698	Known	01-SEP-1997	30-SEP-1997	Yes
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	498	Known	01-AUG-1997	31-AUG-1997	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	598	Known	01-AUG-1997	31-AUG-1997	Yes
MR	Monitoring, Repeat Minor (TCR)	Total Coliform Rule	Coliform (TCR)	297	Known	01-JUL-1997	31-JUL-1997	No
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	397	Known	01-JUL-1997	31-JUL-1997	Yes
MCL	Maximum Contaminant Level Violation, Monthly (TCR)	Total Coliform Rule	Coliform (TCR)	197	Known	01-JUN-1997	30-JUN-1997	Yes
MR	Monitoring, Regular	Arsenic Rule	Arsenic	20299	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	20699	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	71799	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	71699	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	71599	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	71499	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	71399	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	71299	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	71199	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	71099	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	70999	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	70899	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	70799	Known	01-JAN-1996	31-DEC-1998	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	70699	Known	01-JAN-1996	31-DEC-1998	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
13	72899	SOX	State Compliance achieved	18-OCT-2023	Region	-
13	72905	SOX	State Compliance achieved	18-OCT-2023	Region	-
7	72898	SO0	State no longer subject to Rule	26-FEB-2020	Region	The WS is close. kl

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All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
WELL #1 BIA, P&A WELL AT MIDDLE SCH	10840	Yes	Well	Ground water	Other	Inactive
BIA #8 WELL, OGLALA COM SCH	11003	Yes	Well	Ground water	Permanent	Inactive
WELL 2 - NEW HOSPITAL, NORTH WELL	11001	Yes	Well	Ground water	Permanent	Inactive
WELL 1 - NEW HOSPITAL, SOUTH WELL	11000	Yes	Well	Ground water	Permanent	Inactive
WELL 6 - OLD HOSPITAL (ABANDONED 2014)	10997	Yes	Well	Ground water	Permanent	Inactive
WELL 5 - BAKER'S HILL WELL	10996	Yes	Well	Ground water	Permanent	Inactive
INACTIVE	10994	Yes	Well	Ground water	Permanent	Inactive
O & M WELL 2B	12683	Yes	Well	Ground water	Permanent	Active
FOOTBALL FIELD WELL 7B	12682	Yes	Well	Ground water	Permanent	Active
OSRWSS O&M #1, WEST WELL	11002	Yes	Well	Ground water	Permanent	Active
0SRWSS 0&M #2, EAST WELL	10999	Yes	Well	Ground water	Permanent	Active
BIA #7 WELL, OCS FOOTBALL FLD	10998	Yes	Well	Ground water	Permanent	Active
W&S WELL	10995	Yes	Well	Ground water	Permanent	Active
WELL #2 BIA, P&A WELL AT OLD HOSP	10993	Yes	Well	Ground water	Other	Inactive
PINE RIDGE WATER SYSTEM	11136	No	Distribution System/Zone	-	-	Active
PINE RIDGE WATER SYSTEM	11264	No	Other	-	-	Inactive
SLIM BUTTES BOOSTER STATION (2)	13084	No	Pump Facility	-	-	Active
BOOSTER STATION	13085	No	Pump Facility	-	-	Active
CASINO BOOSTER STATION	13086	No	Pump Facility	-	-	Active
PINE RIDGE SOUTH BOOSTER STATION	13087	No	Pump Facility	-	-	Active
PUMPHOUSE - BOOSTER PUMPS	11389	No	Pump Facility	-	-	Inactive
CRAZY HORSE 300K GAL	11891	No	Storage	-	-	Active
ST03 - OGLALA COMMUNITY SCHOOL 75KGAL	11892	No	Storage	-	-	Active
OLD HOSPITAL 75K GAL	11893	No	Storage	-	-	Active
ST05 - SLIM BUTTES 234K GAL	11981	No	Storage	-	-	Active
ST06 - CASINO STORAGE TANK 342K GAL	12528	No	Storage	-	-	Active
PINE RIDGE SOUTH TANK 125K GAL	12684	No	Storage	-	-	Active
ST01 - NEW HOSPITAL (150KGAL)	11890	No	Storage	-	-	Inactive
OSTW&S BUILDING	11419	No	Treatment Plant	-	-	Active
FOOTBALL FIELD TREATMENT PLANT	11446	No	Treatment Plant	-	-	Active
OSRWSS O&M TREATMENT BLDG	11447	No	Treatment Plant	-	-	Active
TP01 - NEW HOSPITAL	11417	No	Treatment Plant	-	-	Inactive
WEST OCS TREATMENT BLDG	11418	No	Treatment Plant	-	-	Inactive
PINE RIDGE-TP4	11444	No	Treatment Plant	-	-	Inactive
TP05 - (ABANDONED 2014)	11445	No	Treatment Plant	-	-	Inactive

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Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TP01 - NEW HOSPITAL	11417	Hypochlorination, Post	Disinfection
WEST OCS TREATMENT BLDG	11418	Fluoridation	Other
WEST OCS TREATMENT BLDG	11418	Gaseous Chlorination, Post	Disinfection
WEST OCS TREATMENT BLDG	11418	Chloramines	Disinfection
OSTW&S BUILDING	11419	Gaseous Chlorination, Post	Disinfection
OSTW&S BUILDING	11419	Chloramines	Disinfection
PINE RIDGE-TP4	11444	Hypochlorination, Post	Disinfection
TP05 - (ABANDONED 2014)	11445	Hypochlorination, Post	Disinfection
FOOTBALL FIELD TREATMENT PLANT	11446	Gaseous Chlorination, Post	Disinfection
FOOTBALL FIELD TREATMENT PLANT	11446	Chloramines	Disinfection
OSRWSS O&M TREATMENT BLDG	11447	Gaseous Chlorination, Post	Disinfection
OSRWSS O&M TREATMENT BLDG	11447	Chloramines	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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