Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	084690441
PWS Name	LOWER BRULE RURAL WATER SUPPLY SYSTEM
PWS Type	Community water system
Owner Type	Tribal Government
Primary Source	Surface water
Primacy Type	Tribal
Is Wholesaler?	No
Population Served	1637
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
MON	Monitoring, Routine (RTCR)	Revised Total Coliform Rule	Revised Total Coliform Rule	36493	Known	01-NOV-2025	30-NOV-2025	No
MR	Monitoring of Treatment (SWTR-Filter)	Surface Water Treatment Rule	Surface Water Treatment Rule	36492	Returned to Compliance	01-NOV-2025	30-NOV-2025	No
MR	Follow-up Or Routine LCR Tap M/R	Lead and Copper Rule	Lead and Copper Rule	36491	Returned to Compliance	01-OCT-2025	-	No
MR	Monitoring, Regular	Inorganic Chemicals	Beryllium, Total	36504	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Thallium, Total	36505	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Chromium	36497	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Arsenic Rule	Arsenic	36494	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Antimony, Total	36503	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Selenium	36506	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Nickel	36501	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Mercury	36500	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	36499	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	36498	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Cadmium	36496	Known	01-JAN-2025	31-DEC-2025	No
MR	Monitoring, Regular	Inorganic Chemicals	Barium	36495	Known	01-JAN-2025	31-DEC-2025	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	36474	Returned to Compliance	01-JUL-2024	-	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Total Polychlorinated Biphenyls (PCB)	36532	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor epoxide	36526	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Heptachlor	36525	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	LASSO	36524	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Atrazine	36523	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Carbofuran	36522	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Hexachlorocyclopentadiene	36521	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dinoseb	36520	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Picloram	36519	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) phthalate	36518	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Simazine	36517	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	OXAMYL	36516	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Di(2-ethylhexyl) adipate	36515	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Glyphosate	36514	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endothall	36513	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Diquat	36512	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Dalapon	36511	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Toxaphene	36510	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Methoxychlor	36509	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	BHC-GAMMA	36508	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Endrin	36507	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	ETHYLENE DIBROMIDE	36534	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	1,2-DIBROMO-3-CHLOROPROPANE	36533	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Chlordane	36535	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Pentachlorophenol	36531	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	Benzo(a)pyrene	36530	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	HEXACHLOROBENZENE	36529	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4,5-TP	36528	Known	01-JAN-2023	31-DEC-2025	No
MR	Monitoring, Regular	Synthetic Organic Chemicals	2,4-D	36527	Known	01-JAN-2023	31-DEC-2025	No
MR	Lead Consumer Notice	Lead and Copper Rule	Lead and Copper Rule	36468	Returned to Compliance	29-SEP-2022	-	No
MR	Monitoring, Regular	Inorganic Chemicals	CYANIDE	36470	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MR	Monitoring, Regular	Inorganic Chemicals	Fluoride	36472	Returned to Compliance	01-JAN-2022	31-DEC-2022	No
MCL	Maximum Contaminant Level Violation, Average	Stage 2 Disinfectants and Disinfection Byproducts Rule	TTHM	36466	Returned to Compliance	01-APR-2021	30-JUN-2021	Yes
MR	Monitoring, Source Water (LT2)	Long Term 2 Enhanced Surface Water Treatment Rule	E. COLI	36420	Returned to Compliance	01-MAY-2018	31-MAY-2018	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
8440	36492	SOX	State Compliance achieved	13-JAN-2026	Region	System collected and reported required December 2025 distribution system RTCR and chlorine residual samples. 1/13/2026. jc
8437	36491	SOX	State Compliance achieved	17-NOV-2025	Region	-
8432	36474	SOX	State Compliance achieved	19-AUG-2024	Region	System RTC with CCR received on 8/19/2024. PS 2024.08.19
8430	36470	SOX	State Compliance achieved	14-SEP-2023	Region	-
8430	36472	SOX	State Compliance achieved	14-SEP-2023	Region	-
8427	36468	SOX	State Compliance achieved	27-OCT-2022	Region	-
8425	36459	SOX	State Compliance achieved	16-SEP-2022	Region	data sent in by Andrea on 9/2022. kl
8425	36460	SOX	State Compliance achieved	16-SEP-2022	Region	data sent in by Andrea on 9/2022. kl
8425	36461	SOX	State Compliance achieved	16-SEP-2022	Region	data sent in by Andrea on 9/2022. kl
8425	36462	SOX	State Compliance achieved	16-SEP-2022	Region	data sent in by Andrea on 9/2022. kl
8425	36458	SOX	State Compliance achieved	16-SEP-2022	Region	data sent in by Andrea on 9/2022. kl
8424	36466	SOX	State Compliance achieved	07-JAN-2022	Region	-
8419	36420	SOX	State Compliance achieved	05-JUL-2018	Region	Collected replacement sample on 7/5/2018
8415	36416	SOX	State Compliance achieved	20-NOV-2014	Region	-
8415	36417	SOX	State Compliance achieved	20-NOV-2014	Region	-
8415	36418	SOX	State Compliance achieved	20-NOV-2014	Region	-
8415	36415	SOX	State Compliance achieved	20-NOV-2014	Region	-
8414	36407	SOX	State Compliance achieved	11-JUN-2010	Region	SOX for data cleanup. cls
8413	36203	SOX	State Compliance achieved	10-JUN-2010	Region	SOX for data cleanup.llw
8412	36411	SOX	State Compliance achieved	30-MAR-2010	Region	-
7901	32100	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	32000	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31900	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31800	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31700	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31600	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31500	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31400	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31300	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31200	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31100	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	31000	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30900	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30800	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30700	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30600	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30500	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30400	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30300	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30100	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00
7901	30200	SOX	State Compliance achieved	02-MAR-2001	Region	WS MONITORED ON 3/7/00

1 - 41 of 41

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
LAKE SHARPE	10825	Yes	Intake	Surface water	Permanent	Active
LOWER BRULE RWSS - LOWER BRULE	11118	No	Distribution System/Zone	-	-	Active
LOWER BRULE RWSS - MNI WICONI CORELINE	11977	No	Distribution System/Zone	-	-	Active
LOWER BRULE RURAL WTR SUP SYS	11246	No	Other	-	-	Inactive
INTAKE BUILDING PUMP STATION	12808	No	Pump Facility	-	-	Inactive
LOWER BRULE PEDESTAL TANK (405K)	11972	No	Storage	-	-	Active
WEST BRULE PEDESTAL TANK (150K)	11973	No	Storage	-	-	Active
MEDICINE BUTTE TANK (450K)	11974	No	Storage	-	-	Active
CLEARWELL	13096	No	Storage	-	-	Active
LOWER BRULE TREATMENT	11346	No	Treatment Plant	-	-	Active

1 - 10 of 10

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
LOWER BRULE TREATMENT	11346	Chloramines	Disinfection by-products control
LOWER BRULE TREATMENT	11346	Filtration, Ultrafiltration	Particulate removal
LOWER BRULE TREATMENT	11346	Fluoridation	Other
LOWER BRULE TREATMENT	11346	Ultraviolet Radiation	Disinfection
LOWER BRULE TREATMENT	11346	Algae Control	Taste / odor control
LOWER BRULE TREATMENT	11346	Gaseous Chlorination, Post	Disinfection

1 - 6 of 6

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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