Safe Drinking Water Information System (SDWIS) Federal Reporting Services

Your Drinking Water Query results from SDWIS Fed Reporting Services

PWS ID	SD4600046
PWS Name	BOX ELDER
PWS Type	Community water system
Owner Type	Local government
Primary Source	Ground water
Primacy Type	State
Is Wholesaler?	No
Population Served	14000
County Served	Pennington

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
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500220	Known	01-JUL-2025	30-SEP-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2500219	Known	01-APR-2025	30-JUN-2025	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2400218	Returned to Compliance	01-JUL-2024	30-SEP-2024	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2200217	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2200216	Returned to Compliance	01-APR-2022	30-JUN-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2200214	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2200215	Returned to Compliance	01-JAN-2022	31-MAR-2022	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	2200212	Returned to Compliance	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	2200213	Returned to Compliance	01-OCT-2021	31-DEC-2021	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0900210	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0900211	Returned to Compliance	01-OCT-2008	31-DEC-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0800209	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0800208	Returned to Compliance	01-JUL-2008	30-SEP-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0800207	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0800206	Returned to Compliance	01-APR-2008	30-JUN-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0800204	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MCL	Maximum Contaminant Level Violation, Average	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0800205	Returned to Compliance	01-JAN-2008	31-MAR-2008	Yes
MR	Monitoring, Routine Minor (TCR)	Total Coliform Rule	Coliform (TCR)	0700203	Returned to Compliance	01-AUG-2007	31-AUG-2007	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0100202	Returned to Compliance	01-JUL-2001	25-SEP-2001	No
Other	Consumer Confidence Report Complete Failure to Report	Consumer Confidence Rule	Consumer Confidence Rule	0000201	Returned to Compliance	01-JUL-2000	30-AUG-2000	No
MR	Monitoring, Repeat Major (TCR)	Total Coliform Rule	Coliform (TCR)	0000143	Returned to Compliance	01-JUN-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2,4-Trichlorobenzene	0000150	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Styrene	0000156	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0000148	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0000164	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0000160	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0000155	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0000147	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0000151	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Trichloroethylene	0000163	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloropropane	0000159	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Carbon tetrachloride	0000154	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,1-Trichloroethane	0000146	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,2-Dichloroethane	0000162	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	trans-1,2-Dichloroethylene	0000158	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1-Dichloroethylene	0000153	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Vinyl chloride	0000145	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	p-Dichlorobenzene	0000161	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	o-Dichlorobenzene	0000157	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	DICHLOROMETHANE	0000149	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Xylenes, Total	0000152	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	cis-1,2-Dichloroethylene	0000144	Returned to Compliance	01-APR-2000	30-JUN-2000	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Gross Alpha, Excl. Radon and U	0000199	Returned to Compliance	01-JAN-2000	31-DEC-2000	No
MR	Monitoring, Regular	Radionuclides and Revised Rad Rule	Combined Radium (-226 and -228)	0000200	Returned to Compliance	01-JAN-2000	31-DEC-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Ethylbenzene	0000169	Returned to Compliance	01-JAN-2000	31-MAR-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Toluene	0000185	Returned to Compliance	01-JAN-2000	31-MAR-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Benzene	0000181	Returned to Compliance	01-JAN-2000	31-MAR-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	CHLOROBENZENE	0000176	Returned to Compliance	01-JAN-2000	31-MAR-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	Tetrachloroethylene	0000168	Returned to Compliance	01-JAN-2000	31-MAR-2000	No
MR	Monitoring, Regular	Volatile Organic Chemicals	1,1,2-Trichloroethane	0000172	Returned to Compliance	01-JAN-2000	31-MAR-2000	No

1 - 50 of 144

Enforcement Actions

Latest Enforcement ID	Associated To Violation ID	Enforcement Action Type Code	Enforcement Action Description	Enforcement Date	Originator Description	Enforcement Comment
2500307	2500220	SIF	State Public Notification received	20-OCT-2025	State	-
2500305	2500219	SIF	State Public Notification received	21-AUG-2025	State	-
2400302	2400218	SOX	State Compliance achieved	26-FEB-2025	State	-
2200297	2200214	SOX	State Compliance achieved	01-AUG-2022	State	-
2200299	2200216	SOX	State Compliance achieved	01-AUG-2022	State	-
2200298	2200215	SOX	State Compliance achieved	01-AUG-2022	State	-
2200295	2200212	SOX	State Compliance achieved	01-AUG-2022	State	-
2200300	2200217	SOX	State Compliance achieved	01-AUG-2022	State	-
2200296	2200213	SOX	State Compliance achieved	01-AUG-2022	State	-
0800275	0800204	SOX	State Compliance achieved	23-DEC-2009	State	-
0800276	0800205	SOX	State Compliance achieved	23-DEC-2009	State	-
0800277	0800206	SOX	State Compliance achieved	23-DEC-2009	State	-
0800279	0800208	SOX	State Compliance achieved	23-DEC-2009	State	-
0800280	0800209	SOX	State Compliance achieved	23-DEC-2009	State	-
0900281	0900210	SOX	State Compliance achieved	23-DEC-2009	State	-
0900282	0900211	SOX	State Compliance achieved	23-DEC-2009	State	-
0800278	0800207	SOX	State Compliance achieved	23-DEC-2009	State	-
0700258	0700203	SOX	State Compliance achieved	01-MAR-2008	State	-
0100255	0100202	SOX	State Compliance achieved	25-SEP-2001	State	-
0000238	0000199	SIF	State Public Notification received	20-MAR-2001	State	-
0000238	0000200	SIF	State Public Notification received	20-MAR-2001	State	-
9800240	9800186	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800197	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800196	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800195	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800194	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800193	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800192	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800190	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800189	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800188	SOX	State Compliance achieved	05-FEB-2001	State	-
9800240	9800187	SOX	State Compliance achieved	05-FEB-2001	State	-
0000259	0000143	SOX	State Compliance achieved	01-JAN-2001	State	-
0000237	0000201	SOX	State Compliance achieved	30-AUG-2000	State	-
0000137	0000147	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000146	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000145	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000144	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000159	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000158	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000157	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000156	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000155	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000154	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000150	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000151	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000152	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000153	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000160	SIE	State Public Notification requested	01-AUG-2000	State	-
0000137	0000161	SIE	State Public Notification requested	01-AUG-2000	State	-

1 - 50 of 142

All Facilities

Facility Name	Facility ID	Is Source	Facility Type Description	Water Type Description	Availability Description	Facility Activity Status
ELLSWORTH AFB	010	Yes	Consecutive Connection	Surface water	Emergency	Inactive
#10	026	Yes	Well	Ground water	Permanent	Active
#5	023	Yes	Well	Ground water	Permanent	Active
#6	016	Yes	Well	Ground water	Permanent	Active
#4	009	Yes	Well	Ground water	Permanent	Active
#7	020	Yes	Well	Ground water	Other	Inactive
#8	011	Yes	Well	Ground water	Other	Inactive
#1	007	Yes	Well	Ground water	Other	Inactive
#9	012	Yes	Well	Ground water	Emergency	Inactive
#3	008	Yes	Well	Ground water	Emergency	Inactive
CITY OF RAPID CITY	025	Yes	Consecutive Connection	Surface water	Emergency	Inactive
1 GS 640000-BIG BLUE	002	No	Storage	-	-	Active
1 ES 250000-SCHOOL	004	No	Storage	-	-	Active
1 GS 982000-CHEYENNE	017	No	Storage	-	-	Active
1 ES 25000-WALL	018	No	Storage	-	-	Active
1 GS 1.5 MG BY #7	019	No	Storage	-	-	Active
1 GS 1.5 MG NORTHERN LIGHTS	022	No	Storage	-	-	Active
1 GS 70000	005	No	Storage	-	-	Inactive
TREAT SITE - #4	006	No	Treatment Plant	-	-	Active
TREAT SITE - #6	015	No	Treatment Plant	-	-	Active
TREAT SITE - #5	024	No	Treatment Plant	-	-	Active
TREAT SITE - #10	027	No	Treatment Plant	-	-	Active
TREAT SITE - #1	001	No	Treatment Plant	-	-	Inactive
TREAT SITE - #3	003	No	Treatment Plant	-	-	Inactive
TREAT SITE - #8	013	No	Treatment Plant	-	-	Inactive
TREAT SITE - #9	014	No	Treatment Plant	-	-	Inactive
TREAT SITE - #7	021	No	Treatment Plant	-	-	Inactive

1 - 27 of 27

Treatment Processes

Facility Name	Facility ID	Treatment Process	Treatment Objective
TREAT SITE - #1	001	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #1	001	Fluoridation	Other
TREAT SITE - #3	003	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #3	003	Fluoridation	Other
TREAT SITE - #4	006	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #4	006	Fluoridation	Other
TREAT SITE - #8	013	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #8	013	Fluoridation	Other
TREAT SITE - #9	014	Hypochlorination, Post	Disinfection
TREAT SITE - #9	014	Ion Exchange	Softening (hardness removal)
TREAT SITE - #6	015	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #6	015	Fluoridation	Other
TREAT SITE - #7	021	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #7	021	Fluoridation	Other
TREAT SITE - #5	024	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #5	024	Fluoridation	Other
TREAT SITE - #10	027	Gaseous Chlorination, Post	Disinfection
TREAT SITE - #10	027	Fluoridation	Other

1 - 18 of 18

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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